Metso NELDISC L6D, NELDISC L6F, NELDISC L6C Intallation, Maintenance And Operating Instructions
NELDISC
®
Metal seated high performance
triple eccentric disc valve
Series L6, L4
Installation, Maintenance and
Operating Instructions
2 L6 70 en • 10/2017
2 2 L6 70 en
Table of Contents
1 GENERAL ..............................................................3
1.1 Scope of the manual ...........................................3
1.2 Valve description .................................................. 3
1.3 Valve markings ......................................................3
1.4 Technical specifications ..................................... 3
1.5 CE marking ..............................................................4
1.6 Recycling and disposal ....................................... 4
1.7 Safety precautions ............................................... 4
2 TRANSPORTATION, RECEPTION AND
STORAGE ..............................................................4
3 INSTALLATION .....................................................4
3.1 General .....................................................................4
3.2 Mounting into the pipeline............................... 5
3.3 Actuator ...................................................................7
4 COMMISSIONING .................................................7
5 MAINTENANCE ..................................................... 7
5.1 Maintenance general ..........................................7
5.2 Removing the valve from the pipeline .........8
5.3 Replacing the gland packing ........................... 8
5.4 Valve leakage .........................................................9
5.5 Replacing the seat ring .................................... 10
5.6 Replacing the disc, shafts and bearings .... 11
5.7 Assembling the valve ....................................... 11
6 DETACHING AND INSTALLING THE
ACTUATOR .........................................................12
6.1 General ................................................................... 12
6.2 Detaching the B1 series actuators ............... 12
6.3 Detaching the EC and EJ actuators ............. 12
6.4 Installing the B1 series actuator ................... 12
6.5 Installing EC and EJ actuators ....................... 13
6.6 Detaching and installing other
actuator types ..................................................... 14
6.7 Stop screw adjustment.................................... 14
7 TOOLS ................................................................ 16
8 ORDERING SPARE PARTS ..................................16
9 EXPLODED VIEW AND PARTS LIST ...................25
9.1 L6C, L6D ................................................................ 25
9.2 L6F ........................................................................... 26
10 DIMENSIONS AND WEIGHTS ........................... 27
11 TYPE CODE .........................................................33
READ THESE INSTRUCTIONS FIRST!
These instructions provide information about safe handling and operation of the valve.
If you require additional assistance, please contact the manufacturer or manufacturer’s representative.
Addresses and phone numbers are printed on the back cover.
See also www.metso.com/valves for the latest documentation.
SAVE THESE INSTRUCTIONS!
Subject to change without notice.
All trademarks are property of their respective owners.
This product meets the requirements set by the Customs Union of the Republic of Belarus,
the Republic of Kazakhstan and the Russian Federation.
2 L6 70 en 3
L6C, L6D,
L6F/D
L6F
BODY
TRIM
SHAFT
SEAT
TYPE
RATING
No.
t max.
t min.
ps
ATTENTION: READ INSTRUCTIONS BEFORE INSTALLATION OR SER VICING. CONTACT METSO AUTOMATION FOR COPY.
Made by Metso Flow Control
XXXX
(1) (9)(8)(6)(5)(3)
(2) (4) (7)
(10)
1 GENERAL
1.1 Scope of the manual
This manual provides essential information for users of Neldisc® triple eccentric disc valves. If you need further information on actuators and other accessories, please refer to
the individual manuals on their installation, operation and
maintenance..
NOTE:
Selection and use of the valve in a specific application
requires close consideration of many different aspects.
Due to the nature of the product, this manual cannot
cover all the individual situations that may occur when the
valve is used.
If you are uncertain about use of the valve or its suitability
for your intended purpose, please contact Metso for more
information.
For valves in oxygen service, please see also the separate
installation, maintenance and operating instructions for
oxygen service (see Metso document id:10O270EN.pdf)
1.2 Valve description
Neldisc series L6 is a double flanged type metal seated triple eccentric disc valve. Neldisc series L4 is a wafer type
metal seated triple eccentric disc valve.
The disc is elliptical and has a triple eccentric mounting.
When the valve is closed, the elliptical disc at the major axis
displaces the seat ring outward, causing the seat ring to
contact the disc at the minor axis. When the valve is
opened, the contact is released and the seat ring returns to
its original circular shape (see Fig. 1).
The disc is fitted to the shafts with pins and there are no
holes through the disc.
Construction details of individual valves are included in the
type code shown on the valve identification plate. To interpret the type code, please refer to Section 11.
Fig. 1. Neldisc seating principle
1.3 Valve markings
Body markings are cast on the body. The valve also has an
identification plate attached to it (see Fig. 2).
Fig. 2. Identification plate
Identification plate marking:
1. Body material
2. Shaft material
3. Trim material
4. Seat material
5. Maximum operating temperature
6. Minimum operating temperature
7. Maximum shut-off pressure differential
8. Type designation
9. Valve manufacturing parts list no.
10. Pressure class
1.4 Technical specifications
Type:
L6 Flanged, reduced bore,
metal seated triple eccentric
disc valve
L4 Wafer, reduced bore
metal seated triple eccentric
disc valve
Pressure class:
L6C ASME Class 150
L6D ASME Class 300
L6F Body and trim ASME Class 600
L6F/D Body ASME Class 600
Trim ASME Class 300
L4F/D Body ASME Class 600
Trim ASME Class 300
Possible flange drillings:
L6C ASME B16.5 & B16.47 Class 150
EN 1092-1 PN 10 & PN 16
ISO 7005 PN 20
JIS 2210 10K & 16K
L6D ASME B16.5 & B16.47 Class 300
EN 1092-1 PN 25 & PN 40
ISO 7005 PN 50
JIS 20K & 30K
L6F ASME B16.5 Class 600
EN 1092-1 PN 63 & PN 100
Temperature range: -200 °C to +600 °C
(-328 °F to +1100 °F)
Flow direction: Free (L6C, L6D, L6F/D, L4F/D)
Flow from shaft side (L6F)
Dimensions: See Section 10
Weights: See Section 10
4 2 L6 70 en
1.5 CE marking
The valve meets the requirements of the European Directive 2014/68/EU relating to pressure equipment, and has
been marked according to the Directive.
1.6 Recycling and disposal
Most valve parts can be recycled if sorted according to
material.
Most parts have material marking. A material list is supplied
with the valve. In addition, separate recycling and disposal
instructions are available from the manufacturer. A valve
can also be returned to the manufacturer for recycling and
disposal against a fee.
1.7 Safety precautions
CAUTION:
Do not exceed the valve performance limitations!
Exceeding the limitations marked on the valve may cause
damage and lead to uncontrolled pressure release.
Damage or personal injury may result.
CAUTION:
Do not dismantle the valve or remove it from the pipeline while the valve is pressurized!
Dismantling or removing a pressurized valve will result in
uncontrolled pressure release. Always isolate the relevant
part of the pipeline, release the pressure from the valve
and remove the medium before dismantling the valve.
Be aware of the type of medium involved. Protect people
and the environment from any harmful or poisonous substances. Make sure that no medium can enter the pipeline
during valve maintenance.
Failure to do this may result in damage or personal injury.
CAUTION:
Beware of the discs cutting movement!
Keep hands, other parts of the body, tools and other
objects out of the open flow port. Leave no foreign
objects inside the pipeline.
When the valve is actuated, the disc functions as a cutting
device. The position of the disc can also be changed when
moving the valve.
Close and detach the actuator pressure supply pipeline for
valve maintenance.
Failure to do this may result in damage or personal injury.
CAUTION:
When handling the valve or the valve package, bear in
mind its weight!
Never lift the valve or valve package by the actuator, positioner, limit switch or their piping.
Place the lifting ropes securely around the valve body (see
Fig. 3).
Damage or personal injury may result from falling parts.
CAUTION:
For safety reasons use a blind flange after the valve
always when the pipe line is terminated immediately
after the valve.
NOTE:
Do not turn the disc more than 90° as this could damage
the seat. The valve is so constructed that the disc operates
only between 0-90°.
2 TRANSPORTATION, RECEPTION AND
STORAGE
Check the valve and the accompanying devices for any
damage that may have occurred during transport.
Store the valve carefully before installation, preferably
indoors in a dry place.
Do not take the valve to the intended location and do not
remove the flow port protectors until the valve is installed.
The valve is delivered in the closed position. A valve
equipped with a spring-return actuator is delivered in a
position determined by the spring. During storage the
valve must be lightly closed.
3 INSTALLATION
3.1 General
Remove the flow port protectors and check that the valve is
undamaged and clean inside.
CAUTION:
When handling the valve or the valve package, bear in
mind its weight!
Follow the lifting methods shown in Fig. 3.
CAUTION:
Beware of noise emissions!
The valve may produce noise in the pipeline. The noise
level depends on the application. It can be measured or
calculated using Metso Nelprof computer software.
Observe the relevant work environment regulations on
noise emission.
CAUTION:
Beware of a very cold or hot valve!
The valve body may be very cold or very hot during use.
Protect yourself against cold injuries or burns.
Fig. 3. Lifting of the valve
2 L6 70 en 5
Flow direction B
The recommended
position of the
perforated plate is at
the "top" of the
pipeline, on the
downstream side and
to flow direction B.
3.2 Mounting into the pipeline
Flush or blow the pipeline carefully before installing the
valve. Foreign particles, such as sand or pieces of welding
electrode, will damage the disc sealing surface and seat.
The valve may be installed in any position and offers tightness in both directions (L6C/D, L6F/D). L6F offers tightness
in one direction.
Install the valve in the pipeline so that the shaft is horizontal if possible. However, we do not recommend installing
the valve with the actuator on the underside because dirt in
the pipeline may then enter the body cavity and damage
the gland packing.
If the valve is equipped with a flow balancing trim (type
code S-...), it must be on the down stream side of the valve
body. The valve must be mounted so that the perforated
plate will not collect any impurities in the pipeline (see
Fig. 4).
Not recommended mounting position coding for valveactuator unit if using S-disc: A-HL, B-HL, C-HL and D-HL.
Select flange gaskets according to the operating conditions.
Do not attempt to correct pipeline misalignment by means
of flange bolting.
Fig. 5. Mounting after a pipe elbow
Fig. 6. Mounting after the centrifugal pump
Fig. 4. Position of the flow balancing trim
It may be necessary to firmly support the pipeline to protect the valve from excess stress. Sufficient support will also
reduce pipeline vibration and this ensures proper functioning of the positioner. Do not fasten supports to the flange
bolting or to the actuator.
It is recommended that the length of any straight pipe
preceding the control valve is at least 2 x pipe diameter.
The flow causes a so-called dynamic torque against the
valve disc which attempts to close the valve. In a pipe
elbow the pressure on the outer edge is higher than on the
inner edge.
When installing the triple eccentric disc valve immediately
after a pipe elbow, the valve shaft must be directed toward
the centre point of the pipe (see Fig. 5). This is especially
important when the valve is used as a control valve.
The valve shaft of a valve mounted after the centrifugal
pump must be perpendicular to the pump shaft (see Fig. 6).
When thus installed, the valve discs will be more evenly
loaded and vibrations otherwise possible in the intermediate positions will be eliminated.
When mounting the valve it must be in a closed position
and be carefully centred between the pipe flanges so that
the turning disc does not touch the pipe edge or flange
gaskets, see Fig.7 and Table 1.
Use caution when installing valve with Spring-to-open
actuator. Valve must be in closed position during installation if the disc exceeds the Face-to-face length. Energy supply for the actuator must be safely fastened and it cannot
suffer damage or break off during the installation.
In case of sudden shutdown of the energy supply the valve
will open unexpectedly due to pre-stressed spring package.
This may cause significant harm to people and material
around the valve.
In valves with certain nominal sizes some flange bolts do
not pass the valve body. The valve body is thus equipped
with holes, see Fig. 8 and Tables 2...6.
Ensure that the disc can turn to the open position after preliminary tightening of the flange bolts. The actuators of
control valves can be equipped with position stops which
usually only allow the disc to open 80°.
Lenght of stud bolts in Tables 2...6 are based on:
gasket thickness of 3 mm
heavy nuts
flange thickness of weldneck flanges per ASME
Fig. 7. Minimum pipe inside dimensions
6 2 L6 70 en
Fig. 8. Stud bolt lenght
Table 1. Minimum pipe inside dimensions (mm / in)
Valve
size
DN /
NPS
10 135 5.3 125 4.9 - - 180 7.1
12 215 8.5 200 7.9 190 7.5 190 7.5
14 275 10.8 265 10.4 - - 175 6.9
16 305 12.0 300 11.8 220 8.7 220 8.7
18 355 14.0 335 13.2 270 10.6
20 400 15.7 385 15.2 335 13.2 335 13.2
24 445 17.5 425 16.7 415 16.3 415 16.3
26 535 21.1 395 15.6 0.0
28 530 20.9 535 21.1 450 17.7 535 21.1
30 525 20.7 520 20.5 450 17.7
32 640 25.2 640 25.2 435 17.1 640 25.2
36 755 29.7 690 27.2 690 27.2 690 27.2
38 755 29.7
40 835 32.9 690 27.2
42 850 33.5 820 32.3
48 920 36.2 810 31.9
56 1115 43.9 1115 43.9
64 1285 50.6
72 1505 59.3
80 1440 56.7
L6C L6D L6F/D L6F L4F/D
mm inch mm inch mm inch mm inch mm inch
4------ 602.4
5---6 20 0.8 20 0.8 - - 110 4.3
8 70 2.8 60 2.4 115 4.5 140 5.5
Table 2. Stud bolt dimensions (mm), L6C
ASME Class 150 flanges. Both flanges included.
Size
NPS
04 5/8-UNC 90 12 80 4
05 3/4-UNC 95 12 80 4
06 3/4-UNC 100 12 80 4
08 3/4-UNC 110 12 90 4
10 7/8-UNC 115 20 95 4
12 7/8-UNC 120 20 100 4
14 1-UNC 135 20 110 4
16 1-UNC 135 24 110 8
18 1 1/8-8UN 145 24 130 8
20 1 1/8-8UN 160 32 130 8
24 1 1/4-8UN 170 32 140 8
28* 1 1/4-8UN 230 48 170 8
30* 1 1/4-8UN 230 48 170 8
32* 1 1/2-8UN 260 48 200 8
34* 1 1/2-8UN 260 56 200 8
36* 1 1/2-8UN 280 56 210 8
40* 1 1/2-8UN 280 64 200 8
42* 1 1/2-8UN 290 56 210 16
48* 1 1/2-8UN 310 72 240 16
52* 1 3/4-8UN 350 72 280 16
56* 1 3/4-8UN 360 80 290 16
*) flanges acc. to ASME B16.47 series A
Thread
K
LL1
Length Qty Length Qty
Table 3. Stud bolt dimensions (mm), L6D
ASME Class 300 flanges. Both flanges included.
Size
NPS
04 3/4-UNC 115 12 100 4
05 3/4-UNC 120 12 100 4
06 3/4-UNC 120 16 100 8
08 7/8-UNC 140 16 110 8
10 1-UNC 160 24 120 8
12 1 1/8-8UN 170 24 130 8
14 1 1/8-8UN 180 32 140 8
16 1 1/4-8UN 190 32 150 8
18 1 1/4-8UN 195 40 150 8
20 1 1/4-8UN 205 40 160 8
24 1 1/2-8UN 230 40 180 8
26* 1 5/8-8UN 270 48 210 8
28* 1 5/8-8UN 280 40 210 16
30* 1 3/4-8UN 300 48 230 8
32* 1 7/8-8UN 320 40 250 16
36* 2-8UN 360 48 260 16
42* 1 5/8-8UN 350 48 250 16
44* 1 3/4-8UN 320 48 260 16
48* 1 7/8-8UN 390 48 340 16
56* 2 1/4-8UN 460 48 360 8
*) flanges acc. to ASME B16.47 series A
Thread
K
LL1
Length Qty Length Qty
Table 4. Stud bolt dimensions (mm), L6F/D
ASME Class 600 flanges. Both flanges included.
Size
NPS
04 7/8-UNC 170 8 130 4
06 1 UNC 200 16 135 8
08 1 1/8-8UN 225 16 150 8
10 1 1/4-8UN 250 24 170 8
12 1 1/4-8UN 260 32 170 8
14 1 3/8-8UN 250 32 150 8
16 1 1/2-8UN 300 32 210 8
18 1 5/8-8UN 320 32 220 8
20 1 5/8-8UN 290 32 195 8
24 1 7/8-8UN 330 32 225 8
28* 2-8UN 370 48 260 8
30* 2-8UN 370 40 260 16
36* 2 1/2-8UN 415 32 270 8
*) flanges acc. to ASME B16.47 series A
Thread
K
LL1
Length Qty Length Qty
2 L6 70 en 7
Insulation limit
Table 5. Stud bolt dimensions (mm), L4F/D
Size
NPS
04 7/8-UNC 25,4 210 8 - - 06 1-8UN 28,4 250 12 - - 08 1 1/8-8UN 31,7 290 12 - - 10 1 1/4-8UN - 340 12 160 8 40
12 1 1/4-8UN - 410 16 170 8 45
14 1 3/8-8UN - 440 16 170 8 44
16 1 1/2-8UN - 490 16 200 8 60
20 1 5/8-8UN - 540 20 210 8 48
24 1 7/8-8UN - 610 20 230 8 60
28* 2-8UN - 680 24 250 8 60
32* 2 1/4-8UN - 710 28 230 8 55
36* 2 1/2-8UN - 770 28 260 8 60
*) flanges acc. to ASME B16.47 series A
Table 6. Stud bolt dimensions (mm), L6F
*) flanges acc. to ASME B16.47 series A
3.2.1 Valve insulation
If necessary, the valve may be insulated. Insulation must not
continue above the upper level of the valve body, see Figure 9.
Fig. 9 Insulation of the valve
3.3 Actuator
When installing the actuator on the valve, make sure that
the valve package functions properly. See instructions for
installing in Section 6.
Observe the space needed for removal of the actuator.
The upright position is recommended for the actuator cylinder.
The actuator must not touch the pipeline, because pipeline
vibration may damage it or interfere with its operation.
In some cases, e.g. when a large-size actuator is used or
when the pipeline vibrates heavily, supporting the actuator
is recommended. Please contact Metso’s Automation business for further information.
ASME Class 600 flanges
ThreadKøH
mm
LL1
Length Qty Length Qty
ASME Class 600 flanges. Both flanges included
Size
NPS
06 1 UNC 165 8 135 4
08 1 1/8 - 8UN 190 16 140 8
10 1 1/4 - 8UN 215 20 160 12
12 1 1/4 - 8UN 220 24 160 16
14 1 3/8 - 8UN 235 24 170 16
16 1 1/2 - 8UN 255 24 190 16
18 1 5/8 - 8UN 275 24 210 16
24 1 7/8 - 8UN 330 32 230 16
28 2 - 8UN 364 48 257 84
30* 2 - 8UN 370 40 260 16
36* 2 1/2 - 8UN 410 40 280 16
Thread
K
LL1
Length Qty Length Qty
4 COMMISSIONING
Ensure that no dirt or foreign objects are left inside the
L2
valve or pipeline. Flush the pipeline carefully. Keep the
valve 30–40° open during flushing.
When starting up the pump, ensure that the valve in the
pipeline is closed or, at the very most, 20° open.
A waterhammer, which follows the start-up of high-capacity pumps, creates a torque peak in the disc. This can damage the pin connection between disc and shaft when the
valve is 30–90° open.
The packing construction is live loaded. If the leakage
occurs, re-tighten the gland nuts but don't exceed the values in the Tables 7, 8 and 9 by 50 % or do not fully compress
the disc springs.
5 MAINTENANCE
CAUTION:
Observe the safety precautions mentioned in Section
1.7 before maintenance!
CAUTION:
When handling the valve or the valve package as a
whole, bear in mind the weight of the valve or the
entire package.
CAUTION:
For safety reasons the retaining plates MUST always
be installed according to Section 5.3.
5.1 Maintenance general
Although Metso’s Neles valves are designed to work under
severe conditions, proper preventative maintenance can
significantly help to prevent unplanned downtime and in
real terms reduce the total cost of ownership. Metso recommends inspecting the valves at least every five (5) years. The
inspection and maintenance interval depends on the actual
application and process condition. The inspection and
maintenance intervals can be specified together with your
local Metso experts. During this periodic inspection the
parts detailed in the Spare Part Set should be replaced.
Time in storage should be included in the inspection interval.
Maintenance can be performed as presented below. Fo
maintenance assistance, please contact your local Metso
office. The part numbers in the text refer to the exploded
view and to the parts list in Section 9, unless otherwise
stated.
NOTE:
When sending goods to the manufacturer for repair, do
not disassemble them. Clean the valve carefully and flush
the valve internals.
For safety reasons, inform the manufacturer of the type of
medium used in the valve (include material safety data
sheets (MSDS)).
NOTE:
In order to ensure safe and effective operation, always use
original spare parts to make sure that the valve functions
as intended.
8 2 L6 70 en
NOTE:
For safety reasons, replace pressure retaining bolting if the
threads are damaged, have been heated, stretched or corroded.
5.2 Removing the valve from the pipeline
CAUTION:
Do not dismantle the valve or remove it from the pipeline while the valve is pressurized!
It is generally most convenient to detach the actuator and
its auxiliary devices (see Section 6), before removing the
valve from the pipeline. If the valve package is small or difficult to access, it may be more practical to remove the entire
package at the same time.
Ensure that the valve is not pressurized and the pipeline is
empty. Ensure that the medium cannot flow into the section where servicing is to take place. The valve must be in a
closed position when removing.
Support the valve carefully with a hoist. Place ropes carefully and unscrew the pipe flange bolts. Ensure that the
ropes are positioned correctly. Lift valve correctly (see
Fig. 3).
5.3 Replacing the gland packing
CAUTION:
Do not dismantle the valve or remove it from the pipeline while the valve is pressurized!
PTFE V-rings are used as a standard gland packing and
graphite rings for high temperature constructions. The
packing construction is live loaded as standard.
The gland packing (20) must be changed if leakage occurs
even after the hex nuts (25) have been tightened as recommended.
5.3.1 L6C, L6D, L6F/D and L4F/D
Make sure the valve is not pressurized.
Unfasten the nuts (25) and remove the disc spring
(TA-Luft) kits (43), the retaining plates (42) and the
gland (9).
Remove old packing rings (20). Do not damage the
surfaces of the packing ring counterbore and shaft. It
is not necessary to change anti-extrusion ring (22).
Clean the gland and packing ring counterbore.
Install new set of packings (V-ring or graphite). Slip
the rings onto the shaft. Ensure that there are no
burrs in the keyway groove which could damage the
packing.
Install the gland.
Mount the retaining plates with the text UPSIDE on
top (see Fig. 10).
Mount the disc spring kits.
Place the nuts on the studs.
Pre-compress the gland packing by tightening the
nuts with a tool until the disc springs have value of
compression (h
Carry out 3…5 operation cycles with the valve. Suita-
ble range of movement is about 80 %.
It is not necessary to fully close or open the valve
during the operation.
Unfasten the nuts and disc springs.
) as in Tables 7 and 8.
1–h2
Fig. 10. Mounting the retaining plates
Measure the height h
of the disc springs and use
1
these values as a basis when defining the final
height of the springs (as compressed condition).
Re-install the disc springs and tighten the nuts with
the tool. Tighten the nuts until the set value of compression (h
) of disc springs is achieved, see
1–h2
Tab les 7 and 8.
Table 7. Tightening of gland packing, L6C and L6D
L6C L6D
DN / NPS DN / NPS mm M, UNC
100 / 4 100 / 4 20 M8, 5/16 2.0 1.0
150 / 6, 200 /
8
250 / 10 200 / 8 25 M10, 3/8 2.5 1.5
300 / 12 25 M10, 3/8 3.0 1.5
350 / 14 250 / 10 25 M10, 3/8 3.0 2.0
400 / 16 25 M10, 3/8 3.0 2.0
450 / 18 300 / 12 35.5 M14, 1/2 4.5 2.5
500 / 20 350 / 14 35.5 M14, 1/2 4.5 2.5
600 / 24 400 / 16 35.5 M14, 1/2 4.5 3.0
700 / 28,
750 / 30
800 / 32 600 / 24 40 M18, 5/8 5.5 3.5
900 / 36,
950 / 38
1000 / 40 50 M20, 3/4 6.5 4.0
1200 / 48 50 M20, 3/4 6.0 5.0
1400 / 56 71 M30, 1 1/4 6.5 6.5
Table 8. Tightening of gland packing, L6F/D and L4F/D
L6F/D
L4F/D
DN / NPS mm M, UNC Graphite + PTFE PTFE
100 / 4 25 M10, 3/8 1.5 1.0
150 / 6 25 M10, 3/8 1.5 1.0
200 / 8 35.5 M14, 1/2 2.0 1.0
250 / 10 40 M18, 5/8 3.5 1.5
300 / 12 50 M20, 3/4 4.0 2.0
350 / 14 50 M20, 3/4 3.5 2.0
400 / 16 50 M20, 3/4 3.5 2.0
450 / 18 50 M22, 7/8 4.0 2.5
500 / 20 56 M24, 1 6.0 3.5
600 / 24 56 M24, 1 6.5 4.0
700 / 28 71 M30, 1 1/4 6.5 4.0
750 / 30 71 M30, 1 1/4 6.5 4.0
900 / 36 56
150 / 6 20 M8, 5/16 2.5 1.5
450 / 18,
500 / 20
700 / 28,
750 / 30
800 / 32 56 M24, 1 6.5 5.5
900 / 36 50 M22, 7/8 6.5 5.0
1000 / 40,
1200 / 48
1400 / 56 80 M36, 1 1/2 9.0 6.5
Spring set
dia
Spring set dia Thread
Thread
40 M18, 5/8 5.0 3.0
50 M20, 3/4 6.0 4.0
M24, 1
56
(4 pcs.)
M24, 1
(4 pcs.)
Compression (h
Packing ring material
Graphite +
PTFE
6.5 6.0
Compression (h
Packing ring material
6.5 5.0
1–h2
1–h2
), mm
PTFE
) mm
2 L6 70 en 9
disc spring set (43)
packing (20)
V-ring set or
graphite packing
anti-extrusion ring (22)
stud (24)
hexagon nut (25)
retainer plate (42)
gland (9)
dia
h
1
h
2
stud (24)
hexagon nut (25)
disc spring set (43)
gland (9a)
retainer ring (42)
packing (20)
graphite packing
compression ring (9b)
V-ring set or
Fig. 11. Gland packing; L6C, L6D, L6F/D and L4F/D
If the leakage still occurs when the valve is pressur-
5.3.2 L6F
Make sure the valve is not pressurized.
Unfasten the nuts (25) and remove the disc spring
Remove old packing rings (20). Do not damage the
Clean the gland and packing ring counterbore.
Mount the compression ring.
Slip the retainer ring on the shaft and push it against
Install the gland.
Mount the disc spring kits.
Place the nuts on the studs.
Pre-compress the gland packing by tightening the
Carry out 3…5 operation cycles with the valve. Suita-
Unfasten the nuts and disc springs.
Measure the height h
Re-install the disc springs and tighten the nuts with
If the leakage still occurs when the valve is pressur-
dia
h
1
h
2
ized, re-tighten the nuts but don't exceed the values
in the Tables 7 and 8 by 50 % or do not fully compress the disc springs.
(TA-Luft) kits (43), the gland (9a), the retainer ring
(42) and the compression ring (9b).
surfaces of the packing ring counterbore and shaft.
Install new set of packings (V-ring or graphite). Slip
the rings onto the shaft. Ensure that there are no
burrs in the keyway groove which could damage the
packing. Position the cut ends of the graphite rings
at a 90° angle to each other.
the compression ring, see Fig. 12.
nuts with a tool until the disc springs have value of
compression (h
) as in Table 9.
1–h2
ble range of movement is about 80 %.
It is not necessary to fully close or open the valve
during the operation.
of the disc springs and use
1
these values as a basis when defining the final
height of the springs (as compressed condition).
the tool. Tighten the nuts until the set value of compression (h
) of disc springs is achieved, see
1–h2
Tabl e 9.
ized, re-tighten the nuts but don't exceed the value
in the Table 9 by 50 % or do not fully compress the
disc springs.
Table 9. Tightening of gland packing, L6F
L6F Spring set dia
Thread
DN mm
No of studs 4 4
200 31.5 M12 3.2 1.1
250 35.5 M14 4.4 1.5
300 40 M16 4.3 1.5
350 40 M16 4.7 1.6
400 50 M20 3.8 1.3
450 50 M20 4.6 1.6
500 50 M20 4.6 1.6
600 71 M30 6.1 2.1
700, 750 71 M30 6.7 2.3
800 80 M36 5.5 1.9
900 80 M36 8.4 2.9
Compression (h1-h2) mm
Packi ng ring materia l
Graphite PTFE
Fig. 12. Mounting the retainer ring
Fig. 13. Gland packing, L6F
5.4 Valve leakage
Valve leakage is not always caused by a damaged seat ring
or disc. The reason can also be that the disc is not in the
closed position.
Check the position of the actuator relative to the
valve. The screws may be loose or the bracket damaged.
Check the adjustment in the closed position (see
Section 6.4).
The marking line parallel to the disc on the valve shaft head
shows roughly the closed position of the disc (see Fig. 14).
Pressure shocks can cause loosening of the pin connection
between disc and shaft; consequently the shaft moves
while the disc remains in place and this prevents full closing
of the disc.
10 2 L6 70 en
open
closed
If the reason for the leakage does not become apparent
after doing the above, the valve must be disassembled for
replacing the parts.
Fig. 14. Open and closed positions of the valve
5.5 Replacing the seat ring
CAUTION:
Do not dismantle the valve or remove it from the pipeline while the valve is pressurized!
Ensure that the valve is not pressurized.
Remove the valve from the pipeline. The valve must
be in a closed position during removal.
Follow the lifting methods shown in Section 3.
5.5.1 L6C, L6D, L6F/D and L4F/D
Remove the clamp ring (2) by untightening the
screws (27).
Remove the old body seal (19) and the seat ring (4).
Change the seat ring if it is damaged.
Clean all the surfaces of the seats and check the sur-
face of the seat ring.
Check also the condition of the disc. A damaged disc
must be changed (see Section 5.6).
Check the condition of the pin connection. Repair it
if necessary (see Section 5.6).
Mount a new, self-adhesive body seal (19) into the
body. The surface must be clean and free of grease.
Handle the ends of the seal according to Fig. 15.
Centre the seat ring (4) carefully into its groove and
turn the disc to maintain light contact with the seat.
Mount the clamp ring and tighten the screws (27)
lightly.
Turn the disc slightly open and pull it back to set the
seat into the proper position.
Tighten the screws (27) crosswise and evenly. First to
50 % of recommended torque, then to 100 %.
Recommended torque values for screws are listed in
Table 10. An unevenly tightened flange may damage
the seat ring. The screw heads must be below the
flange surface in lug type valves.
Table 10. Clamp ring/blind flange screw torque, Nm ±10 %
Thread
mm / (UNC)
M6, 1/4 14 11
M8, 5/16 19 15
M10, 3/8 38 29
M12, 1/2 66 51
M16, 5/8 160 123
M20, 3/4 310 240
M22, 7/8 420 324
M24, 1 540 416
M32, 1 1/4 1430 1100
M38, 1 1/2 2380 1830
Clamp ring Blind flange
Check the position between the seat ring and the
disc. The valve closes clockwise (see Fig. 14).
Mount the actuator into the valve. Adjust the closed
position limit and check the open position limit (see
Section 6).
5.5.2 L6F
Remove the clamp ring (2) and the old seat ring (4).
Clean up graphite from the body groove.
Polish the contact surface of the new body seal with
emery paper (grade 240). Also polish the edge of the
disc.
Spray a thin layer of dry lubricating fluid, e.g.
Molykote 421R, to the edge of the disc.
Mount a new graphite body seal (19) to the body
and then the seat ring (4).
Mount the clamp ring (2). Tighten the screws (27)
lightly, so that the seat ring (4) is still moveable.
Ensure that the valve is well supported on a stable,
horizontal surface.
Turn the disc with a suitable lever to the horizontal
(=fully closed) position. Lock the lever to this position, e.g. using a lifting crane, to prevent the disc
moving in the open direction. See Fig. 16.
Tighten the screws (27) crosswise, see Table 10 for
recommended torques.
Operate the disc to the open position and check the
contact between the seal and the disc. The trace left
in the disc by the seat should be continuous around
the disc. If not, remount the seat ring.
Fig. 15. Mounting the body seal
Spray a thin layer of dry lubricating fluid, e.g.
Molykote 321R or equivalent, into the seat groove,
surfaces of the clamp ring, seat ring and screws.
2 L6 70 en 11
Fig. 16. Replacing the seat, L6F
5.6 Replacing the disc, shafts and bearings
5.6.1 Disassembling the valve
The pin connection of the disc must be opened by drilling for
changing the disc (3), shafts (11, 12) and bearings (15, 16).
Remove the valve from the pipeline and the actuator
from the valve.
Remove the clamp ring (2) and seat ring (4) accord-
ing to section 5.5.
Set the valve horizontally on a sturdy surface so that
the flat side of the disc lays against the surface (see
Fig. 17).
Fig. 17. Drilling the pins
Drill the holes carefully to the centre of the pins (14).
Choose a drill 0.2-0.5 mm smaller than the diameter
of the pin.
Drill the holes deep, but not enough to reach the
disc.
Pull the pins out.
Dismantle the gland packing including anti-extru-
tion ring (22), when applicable, according to
Section 5.3.
Detach the screws (26) and the blind flange (10) and
remove the gasket (18).
Place rubber strips or other protection between the
disc edge and the body and remove the shafts (see
Fig. 18).
Remove the bearings (15, 16).
Clean and check all parts carefully.
Fig. 18. Protecting the disc during disassembly and assembly
5.7 Assembling the valve
Replace damaged parts with new ones.
Set the disc and the shaft together beforehand. In
case the pin holes have been damaged during
removal of the old pins the holes can be drilled to a
larger pin size. File off any burrs from the shafts.
The bearings for the valves (N, U and H constructions) are
cobalt alloy bushings which are mounted into the body
together with the shafts.
Mount the bearing into the shaft. Spray a thin layer
of dry lubricating fluid, e.g. Molykote 321R or equiva-
lent, into the inside surface of the bushing and the
shaft bearing groove. Press the bushing with a tight-
ening ring into the shaft bearing groove and fit the
shaft with the bearings carefully into the body
through the tightening ring.
Place the disc horizontally on a surface so that the
flat side of the disc lays against the surface. Lift the
body around the disc so that the shaft bores are
aligned with the bores in the disc. Protect the disc
(see Fig. 19).
Press the shafts into the disc drillings. Align the pin
holes. The shaft (11) position against the disc must
be according to Fig. 14.
NOTE:
Use only pins supplied by the manufacturer!
NOTE:
The pins must be pressed with enough force to deform them
so that the connection will be free from backlash.
Support the disc well in a horizontal position during
mounting of the pins. Push the new pins into the
holes and press them in a press to final form (see Fig.
19). Use a smaller tool than the pin diameter. See
Table 11 for forces.
Fig. 19. Pressing the pins
12 2 L6 70 en
Table 11. Pressing the pins, forces kN
Pin diameter,
mm
5 45 20 500
6 70 25 780
8 95 30 1125
10 140 35 1500
12 200 40 2000
15 300 50 3150
Force, kN Pin diam eter,
mm
Force, kN
Install the gasket (18) and the blind flange (10).
Tighten the screws (26) lightly.
Then tighten the screws (26) crosswise and evenly.
First to 50 % of recommended torque, then to 100 %.
Recommended torque values for screws are listed in
Tab le 10 .
Install the seat ring. See details in Section 5.5.
Install the body seal (19) and the clamp ring (2). See
details in Section 5.5.
Install the gland packing (see Section 5.3).
Check the contact line between the seat ring and the
disc (see Fig. 14).
6 DETACHING AND INSTALLING THE
ACTUATOR
6.1 General
CAUTION:
When handling the valve or the valve package, bear in
mind its weight!
CAUTION:
The actuator must not be removed from the valve in a
pipeline under pressure as result of dynamic torque!
Fig. 20. Actuator removal, B1 series
6.3 Detaching the EC and EJ actuators
Disconnect the actuator from its power source;
detach the air supply pipe and control signal cables
or pipes from their connectors.
First detach the positioner, or any other accessory,
from the actuator, and detach the coupling plate
from the drive shaft. Next, the bushing is loosened
by turning the tightening screw counter-clockwise.
The tightening screw also acts as an extractor. It is
highly recommended to use a suitable bushing from
the tool set H061544 between the tightening screw
(I) and drive shaft. The bushing dimensions are given
in Table 12.
Detach the actuator finally from the valve after the
screws that attach the actuator to the valve have
been removed.
CAUTION:
Do not detach a spring-return actuator unless a stopscrew is carrying the spring force!
NOTE:
Do not turn the disc more than 90° as this could damage
the seat. The valve is so constructed that the disc operates
only between 0-90°.
NOTE:
Before dismantling, carefully observe the position of the
valve with respect to the actuator and positioner/limit
switch so as to ensure that the package can be properly
reassembled.
The actuator is factory-mounted on the valve and the
stroke limit stop screws are adjusted in advance.
6.2 Detaching the B1 series actuators
Disconnect the actuator from its power source;
detach the air supply pipe and control signal cables
or pipes from their connectors.
Unscrew the bracket screws.
Detach the actuator using a suitable extractor. The
correct tool can be ordered from the manufacturer
(see Fig. 20).
Remove the bracket and coupling, if any.
Fig. 21. Detaching the EC/EJ actuator
Table 12. Bushing dimensions
Actuator Outer dim. (mm) Inner dim. (mm)
EC/EJ05 24.5 12.5 15
EC/EJ07 24.5 16.5 32.75
EC/EJ10 24.5 20.5 45
EC/EJ12
Height
(mm)
6.4 Installing the B1 series actuator
Turn the valve to the closed position before mount-
ing the actuator.
Clean the shaft and the shaft bore and file off any
burrs which could interfere with mounting. Protect
the joint surfaces from corrosion, e.g. with Cortec
VCI 369 or an equivalent anti-corrosive agent..
2 L6 70 en 13
Loctite 225 or
similar
Key
Installation tool
H061904
DIN keyways at bushing
split
ANSI keyways in the
middle of bushing
ACTUATOR IN CLOSED POSITION
Closing pressure
Stop screw for
open position
Stop screw for
closed position
Opening
pressure
If a bushing is required between the actuator shaft
bore and the valve shaft, mount it first in the actuator shaft bore.
The valve keyway is on the side opposite the flat side
of the disc. The actuator shaft bore has two keyways
set 90° apart.
For double-acting cylinder actuator, B1C, and spring-
return cylinder actuator, B1J (spring-to-close),
choose the keyway which establishes the piston in
its upper position (at the top end of the cylinder)
when the valve is closed.
In the spring-return cylinder actuator B1JA (springto-open), choose the keyway which establishes the
piston in its lower position when the valve is open.
Check visually that the actuator is correctly posi-
Fig. 22. Cone bushing installation
tioned relative to the valve. Tighten all the fastening
screws as tightly as possible.
Adjust the stop screws to the closed position (see
Section 6.7).
The opening angle in a control valve can be limited
by a stop screw to 80°. The opening angle of a shutoff valve is 90°.
When a shaft extension is required, the sizing of the
shaft extension must be discussed with the valve
manufacturer.
6.5 Installing EC and EJ actuators
The actuator is attached to a bracket via an ISO 5211 standard mounting interface. The actuator is adapted to the
valve shaft with a separate bushing. The bushing (II + II) is a
two-piece cone-shaped bushing, which is tightened firmly
with a tightening screw (I) around the valve shaft.
The bushing and the tightening screw are inserted
Prior to installation, the correct keyway position of
The open or closed positions of the actuator can be
to actuator drive shaft according to Fig. 22. Cylindrical pins (III) are inserted in the bushing slots, and
these must be directed into the corresponding slots
in the actuator during tightening. Before the installation of the bushing and the tightening screw, impurities such as old threadlocking material have to be
removed from the threads of the tightening screw,
and Loctite 225 or similar. Threadlock have to be
carefully applied to the threads, as shown in Fig. 22.
The tightening screw can be turned from inside the
actuator shaft using a suitable hex key, Fig. 23.
the valve has to be checked. The bushing has four
keyways, two of which are intended for valves with
DIN key and two for valve shafts with ANSI key. The
DIN keyway is located in the split between the bushing halves, and the ANSI keyway is located in the
middle of the half bushing. Fig. 24 shows the keyway
position when the actuator is in a closed position.
identified either by using compressed air, see Fig. 25,
or by checking the position of the pointer at the end
of the drive shaft. The actuator is closed if the direction of the slot in the coupling plate is transverse to
the direction of the actuator's main line.
Fig. 23 Tightening of the cone bushing
Fig. 24. Keyway positions on the actuator
Fig. 25. Actuator connections
14 2 L6 70 en
Mount the actuator to the valve bracket with four
screws. The tightening screw of the bushing should
be loosened before mounting, to allow the shaft to
fit easily into the actuator.
The actuator construction allows axial movement of
the drive shaft to compensate the valve shaft movement due to e.g. thermal expansion. Check, before
the screw is tightened, that the drive shaft is in the
upper position of its axial movement, which is its
normal position (the mounting position shown in
Fig. 23). Checking is important, as the actuator shaft
drops down slightly when the screw is tightened.
The drive shaft axial movement can be observed and
measured before attachment to a valve. The actuator
drive shaft is in the upper position when its upper
surface conforms to Table 13 (see Fig. 23).
The drive shaft will automatically find its correct
position if the installation tool H061904 (see Fig. 23)
is used. The installation tool is attached instead of
the coupling plate using M4 screws with the drive
shaft in lower position (before the valve is installed).
Tighten the nut of the tool in such a way that the
tool pulls the drive shaft to the uppermost position.
The position may be checked from the side of the
tool.
Install the actuator on the valve and attach the valve
mounting screws loosely by hand. Then tighten the
tightening screw (I) according to Table 13. The
required torque is also marked on a plate close to the
drive shaft on the actuator housing. The installation
tool is removed, and the coupling plate is reattached. Finally, tighten the valve mounting screws.
Check the axial position of the drive shaft. The shaft
position may not be at the upper or lower position X
given in Table 13, or close to those values. Remount
the actuator if the position is not correct.
The valve may malfunction if the tightening of
the connection has been carried out improperly.
Finally, the extreme rotation positions of the valve
are adjusted with the adjustment screws at the ends
of the actuator. The location of the screws for adjusting the close and open positions of the valve are
marked on the actuator housing (see Fig. 25). See
Section 6.7.
Table 13. Mounting faces, tightening screws and drive shaft
clearances
6.6 Detaching and installing other
actuator types
See actuator’s manual for details.
6.7 Stop screw adjustment
6.7.1 General
Close the metal seated triple eccentric disc valve by turning
the disc with a torque against the seat. Choose the torque
from Tables 14, 15, 16 and 17 for adjusting the stop screw to
the closed position of the actuator. Try not to exceed the
given values since excessive torque would strain the seat
and the joint between the disc and the shaft. Always readjust the stop screw after changing the seat and after
mounting the actuator.
6.7.2 Actuators other than tabulated
Close the valve as per the tabulated torque Mc and adjust
the stops accordingly. Note the increased torque created by
the actuator while the valve is closed.
NOTE:
Metso accepts no responsibility for compatibility of actuators not installed by Metso.
6.7.3 Changing the mounting position
CAUTION:
The actuator must not be removed from the valve in a
pipeline under pressure as result of dynamic torque!
Always remove the actuator from the valve shaft before
mounting it into another key groove. Readjust the closed
position limit as instructed.
If manually operated, the valve should close when the
handwheel is turned clockwise. In a double-action cylinder,
the piston must be in the upper position of the cylinder
when the valve is closed. In this position the actuator creates maximum torque. Do not turn the disc more than 90°
as this could damage the seat.
Size Mounting Thread Key Nm ~X
EC/EJ05 F05 M12 6 25 4.0 1
EC/EJ07 F07 M16 8 50 1.5 -2
EC/EJ10 F10 M20 10 100 2.5 -2
EC/EJ12 F12 M24 14 200 3.5 -2
EC/EJ14 F14 M36 19 700 4.5 -2
upper pos.
(mm)
lower pos.
(mm)
~X
Fig. 26. Changing the mounting position
2 L6 70 en 15
Stop screw for the
closed position
Stop screw for the
open position
Stop screw for the
closed position
Stop screw for the
open position
Stop screw for the
closed position
Stop screw for the
open position
6.7.4 Double-acting cylinder actuator B1C
Apply the tabulated shut-off pressure Pc to the air
connection at the cylinder base.
With the stop screw removed, check through the air
connection hole that the piston does not touch the
cylinder end. If it does, loosen the bracket screws
and turn the actuator clockwise to increase the
adjusting margin.
Turn the closed position stop screw until it touches
the piston, then turn back 1/4 turn and lock up. An
O-ring is used for leakproofing the stop screw.
An extra long screw is needed for opening angles
Fig. 28. Cylinder actuator, series B1J
<80°.
6.7.7 Spring-return cylinder actuator B1JA
"Spring-to-open"
The actuator being unpressurized the valve is open.
Unscrew the close limit stop screw (actuator housing). Apply tabulated shut-off pressure Pc to the air
connection at the cylinder bottom end against the
spring force to close the valve.
Check through the stop screw hole that the piston
rod does not touch the cylinder top end. If it does,
loosen the bracket screws and turn the actuator
clockwise to increase the adjusting margin.
Fig. 27. Cylinder actuator, series B1C
6.7.5 Double-acting diaphragm actuator EC
Follow instructions given in Section 6.7.4. See also Fig. 25.
Turn the closed position stop screw until it touches
the piston, then turn back 1/4 turn and lock up. An
O-ring is used for leakproofing the stop screw.
An extra long screw is needed for opening angles
<80°.
6.7.6 Spring-return cylinder actuator B1J
"Spring-to-close"
Before mounting the cylinder, screw in the closed
position stop screw completely.
The tables indicates *) spring when the spring-cre-
ated torque does not exceed the maximum permitted closing torque Mc. Otherwise, apply the
tabulated pressure Pc into the air connection at the
cylinder end against the spring force. The stop
screw must not be removed when the cylinder is
pressurized! Open the stop screw until it does not
touch the piston.
Turn the closed position stop screw until it touches
the piston, then turn back 1/4 turn and lock up. An
O-ring is used for leakproofing the stop screw.
After adjusting, check the adjusting margin through
the air connection hole. The piston must not touch
the cylinder end. If necessary, increase the margin by
loosening the bracket screws and turning the actuator clockwise.
An extra long screw is needed for opening angles
<80°.
Fig. 29. Cylinder actuator, series B1JA
6.7.8 Spring-return diaphragm actuator EJ
"Spring-to-close"
Follow instructions given in Section 6.7.6. See also Fig. 25.
"Spring-to-open"
Follow instructions given in Section 6.7.7. See also Fig. 25.
16 2 L6 70 en
Stop screw for the
closed position
Stop screw for the
open position
6.7.9 M-series operator
Close the valve as per the tabulated primary torque
M1 (handwheel torque) given in Tables 14, 15, 16
and 17.
Tighten the closed position stop screw until it
touches the linkage, then turn back 1/4 turn and lock
up with with Loctite 225 or similar.
Fig. 30. Actuator, series M
6.7.10 Electric operator
Instructions for adjustment are given in a separate leaflet,
code D304568, which is available from the manufacturer.
7TOOLS
No special tools are needed for servicing the valve. However, we recommend an extractor tool (ID-code table in
actuator's IMO) for removing the actuator from the valve.
The tool can be ordered from the manufacturer.
8 ORDERING SPARE PARTS
When ordering spare parts, always include the following
information:
type code, sales order number, serial number
(stamped on a valve body)
number of the parts list, part number, name of the
part and quantity required
This information can be found from the identification plate
or documents.
Fig. 31. Electric operator
2 L6 70 en 17
Table 14. Series L6C, closing torques
M1
Input torque
Manual
operator
Spring close Spring open
Q-P
actuator
pc
EJA
EJ
pc
4.9 71
g
*)sprin
4.5 65
g
*)sprin
4.6 67
g
*)sprin
pc
EC
EJ
EC
and
pc
BJVA**
BJV
BJKA**
BJK
BJA**
BJ
pc
pc
3.3 48 0.6 9 4. 6 68 7 QP3C 0.8 12 3.5 51
pc
pc
pc
g
*)sprin
5.3 77 7 QP4C 1 14 3.3 48
g
*)sprin
*)sprin
4.5 65 3.8 55
g
*)sprin
3.2460.8124.362 10 4.667
g
5.6 81 5 QP4C 4.3 62 M07 26 19
g
*)sprin
572 4.464
g
*)sprin
3.2460.8124.668 10
*)sprin
5.5 80 7 QP5C 0.1 1 4.1 59 M10 43 32
g
*)sprin
g
4.6 67 4 58
g
*)sprin
4.2 61 3.6 52 0.3 4 5 73 10 M14 51 38
g
*)sprin
5.7 83 M14 72 53
g
*)sprin
4.9 71 4.3 62
g
*)sprin
3.1450.8124.261
*)sprin
6.8 99 M14 125 92
g
*)sprin
g
5.3 77 M15 107 79
g
*)sprin
3.3480.6 9 4.464 M16 102 75
3.1450.9134.261 M16 83 61
g
g
*)sprin
*)sprin
4.2 61 3.6 52 0.3 4 4.7 68
4.8 70 4.2 61
g
g
*)sprin
*)sprin
pc
BC
62.536 5 QP2C 0.693.652 M07 4 3
8 2.1 30 0.7 10 3.3 48 0.3 4 2.8 41 1 .1 16 4 58 7 3.4 49 0.1 1 4.2 61 QP 3C 1.1 16 3.2 46
64.159 5QP2C4.362M0775
8 3.4 49 0.2 3 3.8 55
92.130 10 2.3 33 0.7 10 3. 7 54
6687 5 QP3C 0.343.957 M07 10 7
8572
BJ
BC
and
Mc
DN
L6C
Nm lbf ft SIZE bar psi bar psi bar psi bar psi bar psi bar psi bar psi SIZE bar psi bar psi bar psi bar psi bar psi Nm lbf ft
SIZE
100
10 1.6 23 1.1 16 2.8 41 0.7 10 2.2 32 1.6 23 3.4 49 10
45 33
4"
125
10 1.9 28 0.9 13 3. 1 45 0.5 7 2.6 38 1.4 20 3.7 54 12
11 1.1 16 14
75 55
5"
9343 10 3.4 49 0.1 1 4.2 61
110 80
150
6 8.2 119 5QP3C4.362M071410
10 2.4 35 0.6 9 3.4 49 0.2 3 2.9 42 1.1 16 4 58 12 1.4 20 1.1 16 3.3 48
6"
94.159 7 QP4C 0.8 12 3.5 51
11 1.5 22 14
12 1.3 19 1.1 16 3 4 3 0.7 10 2.2 32 1.6 23 3.7 54
10 3.3 48 0.2 3 3.8 55
11 2.1 30 12 1.9 28 0.8 12 3. 6 52
12 1.6 23 0.9 13 3. 1 45 0.5 7 2.6 38 1.5 22 3.9 57 14
10 6.5 94
11 4.2 61 7 QP5C 0.8 12 3.5 51 M10 27 20
12 3.3 48 0.2 3 3.8 55
200
150 110
8"
250
300 220
10"
13 2.1 30 12 3.8 55
16 1.6 23 0.9 13 3. 1 45 0.5 7 2.6 38 1.3 19 3.8 55 14 1.6 23 1 15 3.2 46
12 5.5 80
16 2.8 41 0.5 7 3.6 52 0 3 43 1 14 4.3 62 12
17 1.8 26 14 2.6 38 0.5 7 3.7 54
13 5.8 84 7 M12 69 51
16 4.5 65
17 3 43 12
20 2.3 33 0.6 9 3.4 49 0.2 3 2.8 41 1.1 16 3.9 57 14 4.3 62
16 6.4 93
17 4.2 61
20 3.3 48 0.3 4 3.7 54
25 1.7 25 0.9 13 3. 1 45 0.5 7 2.6 38 1.4 20 3.6 52
16 9.5 138 5.9 86 5.2 75
17 6 87 M15 80 59
20 4.7 68
25 2.4 35 0.6 9 3.4 49 0.2 3 2.8 41 1.1 16 3.9 57
20 6.3 91
300
13 3.5 51 10 M12 44 32
500 370
12"
350
825 610
14"
400
1160 860
16"
450
1650 1220
18"
500
25 3.2 46 0.4 6 3.7 54
2200 1620
20"
32 1.9 28 0.8 12 3. 2 46 0.4 6 2.7 39 1.3 19 3.8 55 M25 98 7 2
32 1.6 23 0.9 13 3. 1 45 0.5 7 2.5 36 1.4 20 3.7 54
25 3.9 57 0.1 1 3.9 57
2700 1990
24"
600
*) Spring = spring torque not adequete to reach tIghtness according to ISO 5208 Rate D, BS 6755 Part 1 Rate D, ANSI/FCI 70.2 Class V, IEC 534-4 or MSS-SP72/1970
**) Adjust the supply pressure regulator to the pressure below. Do not exceed given value.
18 2 L6 70 en
Table 14. Continued
M1
Input torque
Manual
operator
Spring close Spring open
Q-P
actuator
pc
EJA
EJ
pc
pc
EC
EJ
EC
and
pc
BJVA**
BJV
BJKA**
BJK
BJA**
5.3 77 M16 166 122
pc
g
*)sprin
pc
3.1 45 0.8 12 4.3 62
pc
pc
g
*)sprin
4.8 70 4.2 61
4.2 61 3.6 52 0.3 4 4.8 70 M25 244 180
g
*)sprin
BJ
pc
g
*)sprin
pc
BC
BJ
25 6.4 93
Nm lbf ft SIZE bar psi bar psi bar psi bar psi bar psi bar psi bar psi SIZE bar psi bar psi bar psi bar psi bar psi Nm lbf ft
SIZE
700
32 3.2460.4 6 3.754
4400 3240
28"
BC
and
Mc
DN
L6C
40 1.5 22
750
4400 3240
g
*)sprin
32 4.7 68
40 2.3 33
50 1.2 17
322 0.6 9 0.2 3
322 0.3 4
6500 4790
30"
800
9400 6930
32"
36"
900
g
*)sprin
40 3.3 48
50 1.7 25
950
9400 6930
40 4.4 64
50 2.3 33
40 5.7 83
50 2.9 42
50 4.8 70
50 6.6 96
50 4.2 61
50 4.2 61
322
12600 9290
38"
40"
1000
502 1. 3 19
502 2 29
502 2. 7 39
16400 1209 0
25600 1888 0
35000 2580 0
48"
56"
1200
64"
1400
1600
1700
50 4.2 61
502 1. 7 25
502 1. 7 25
502 1. 7 25
22000 1620 0
22000 1620 0
22000 1620 0
68"
72"
80"
1800
2000
*) Spring = spring torque not adequete to reach tightness according to ISO 5208 Rate D, BS 6755 Part 1 Rate D, ANSI/FCI 70.2 Class V, IEC 534-4 or MSS-SP72/1970
**) Adjust the supply pressure regulator to the pressure below. Do not exceed given value.
2 L6 70 en 19
Table 15. Series L6D, closing torques
M1
Input torque
Manual
operator
Spring close Spring open
Q-P
actuator
pc
EJA
EJ
pc
5.5 80
g
*)sprin
4.5 65
g
*)sprin
pc
EC
EJ
EC
and
pc
BJVA**
pc
BJV
pc
BJKA**
pc
BJK
pc
BJA**
BJ
pc
3.3 48 0.6 9 4.6 68 7 QP3C 0.8 12 3.5 51 M07 7 5
g
*)sprin
5.377 7 QP4C 1 143.348
*)sprin
4.5 65 3.8 55
*)sprin
g
3.2 46 0.7 10 4.3 62 M16 44 32
g
*)sprin
4.4 64 3.8 55 0.1 1 5 73 5 QP4C 0.3 4 3.9 57 M07 20 15
g
g
*)sprin
4.4 64 3.8 55 0.1 1 5 .3 77 7 M12 38 28
g
*)sprin
4.2 61 3.6 52 0.4 6 4 .9 71 10
g
*)sprin
4.3 62 3.7 54 0.2 3 4 .8 70 M16 62 46
*)sprin
3.2 46 0.7 10 4.3 62 M16 94 69
g
*)sprin
4.3 62 3.7 54 0.2 3 4 .8 70 M16 128 94
g
g
*)sprin
pc
BC
62.536 5QP2C0.693.652
8 2.1 30 0.7 10 3.3 48 0.3 4 2.8 41 1. 1 16 4 58 7 3.4 49 0.1 1 4.2 61 QP3C 1.1 16 3.2 46 M07 4 2
64.159 5QP2C4.362
8 3.4 49 0.2 3 3.8 55
92.130 10 2.3330.7103.754
6687 5QP3C0.343.957M07107
8572
BJ
BC
and
Mc
DN
L6D
Nm lbf ft SIZE bar psi bar psi bar psi bar psi bar psi bar psi bar psi SIZE bar psi bar psi bar psi bar psi bar psi Nm lbf ft
SIZE
10 1.6 23 1.1 16 2.8 41 0.7 10 2.2 32 1.6 23 3.4 49 10
45 33
4"
100
10 1.9 28 0.9 13 3.1 45 0.5 7 2.6 38 1.4 20 3.7 54 12
11 1.1 16 14
75 55
5"
125
9343 10 3.4490.1 1 4.261
110 80
6"
150
10 2.4 35 0.6 9 3.4 49 0.2 3 2.9 42 1.1 16 4 58 12 1.4 20 1.1 16 3.3 48
11 1.5 22 14
12 1.3 19 1.1 16 3 43 0.7 10 2.2 32 1.6 23 3.7 54
10 5 72
11 3.2 46 7 QPC5 1 14 3.3 48 M10 21 15
12 2.5 36 0.5 7 3.5 51 0.1 1 2.9 42 1.1 16 4.3 6 2 10
13 1.6 23 12 2.9420.3 4 4.159
16 1.3 19 0.9 13 3 43 0. 6 9 2.3 33 1.5 22 3.7 54 14
11 6.4 93 5QPC50.343.957M104029
12 5 72
13 3.2 46 10 M14 28 21
16 2.5 36 0.5 7 3.5 51 0.1 1 2.9 42 1 14 4.2 61 12 5.9 86
17 1.7 25 14 2.4350.6 9 3.652
20 1.4 20 1 14 2.9 42 0.6 9 2.3 33 1.5 22 3.5 51
13 5.6 81 7 M14 49 36
16 4.4 64
17 2.9 42 12
20 2.3 33 0.7 10 3.3 48 0.3 4 2.8 41 1.2 17 3.8 55 14 4.2 61
17 4.6 67 1 M15 61 45
20 3.6 52 0.2 3 3.8 55
25 1.8 26 0.8 12 3.2 46 0.4 6 2.6 38 1.3 19 3.7 54
32 1 15
17 6.4 93 M15 85 63
20 5 72
25 2.6 38 0.6 9 3.4 49 0.2 3 2.9 42 1.1 16 3.9 5 7
32 1.3 19 1 14 2.9 42 0.6 9 2.3 33 1.5 22 3.6 52
25 3.6 52 0.2 3 3.8 55
32 1.8 26 0.8 12 3.2 46 0.4 6 2.6 38 1.3 19 3.8 55 M25 91 67
40 0.9 13
25 4.9 71
32 2.4 35 0.6 9 3.4 49 0.2 3 2.8 41 1.1 16 4 58
40 1.2 17
322 1 15 2.9 42 0.6 9 2.2 32 1.5 22 3.4 49
230 170
8"
200
460 340
10"
250
800 590
12"
300
1250 920
14"
350
1750 1290
16"
400
2500 1840
18"
450
3400 2510
20"
500
*) spring = spring torque not adequete to reach tightness according to ISO 5208 Rate D, BS 6755 Part 1 Rate D, ANSI/FCI 70.2 Class V, IEC 534-4 or MSS-SP72/1970
**) Adjust the supply pressure regulator to the pressure below. Do not exceed given value.
20 2 L6 70 en
L6D
DN
SIZE
Mc
BC
and
BJ
BC
pc
BJ
pc
BJA**
pc
BJK
pc
BJKA**
pc
BJV
pc
BJVA**
pc
EC
and
EJ
EC
pc
EJ
pc
EJA
pc
Q-P
actuator
Spring close Spring open
Manual
operator
Input torque
M1
Nm lbf ft SIZE bar psi bar psi bar psi bar psi bar psi bar psi bar psi SIZE bar psi bar psi bar psi bar psi bar psi Nm lbf f t
600
24"
4100 3020
32 3 430.463.652
*)sprin
g
3430.9134.261 M16 155 114
40 1.4 20 M25 149 110
322 0.9 13 3 43 0.5 7 2. 4 35 130
50 0.8 12
502 0. 3 4
700
28"
6700 4940
32 4.8 70
*)sprin
g
4.3 62 3.6 52 0.2 3 4.9 71 M25 244 180
322 0.6 9 0.2 3
750
30"
40 2.3 33
800
32"
9800 7230
322 0.2 3
*)sprin
g
40 3.4 49
50 1.8 26
900
36"
12000 8850
322
*)sprin
g
40 4.2 61
50 2.2 32
1000
40"
19000 1401 0
50 3.4 49
502 1. 5 22
1050
42"
1100
44"
1200
48"
1250
50"
1400
56"
38000 2800 0
50 7.2 104
502 2. 9 42
1500
60"
602 2 29
*) Spring = spring torque not adequete to reach tIghtness according to ISO 5208 Rate D, BS 6755 Part 1 Rate D, ANSI/FCI 70.2 Class V, IEC 534-4 or MSS-SP72/1970
**) Adjust the supply pressure regulator to the pressure below. Do not exceed given value.
Table 15. Continued
2 L6 70 en 21
L6F/D
L4F/D
DN
SIZE
Mc
BC
and
BJ
BC
pc
BJ
pc
BJA*
pc
BJK
pc
BJKA*
pc
BJV
pc
BJVA*
pc
EC
and
EJ
EC
pc
EJ
pc
EJA
pc
Q-P
actuator
Spring close Spring open
Manual
operator
Input torque
M1
Nm lbf ft SIZE bar psi bar psi bar psi bar psi bar psi bar psi bar psi SIZE bar psi bar psi bar psi bar psi bar psi Nm lbf ft
100
4"
60
63.348 5 QPC2 0.574.768 M07 5 4
8 2.7 39 0.5 7 4.3 62 0.2 3 3. 6 52 0.8 12 5.2 75 7 4.4 64 0.1 1 5.5 80 QPC3 0.8 12 4.2 61
10 2.1300.8123.6520.5 7 2.9421.2174.464 10
125
5"
65.377 5QPC25.681M0797
8 4.4 64 0.2 3 4.9 71 4.3 62 0.5 7 6.0 87 7 QPC3 0.6 9 4.6 67
92.739 10 3.0440.5 7 4.870
10 2.5360.7104.0580.7103.4491.1164.869 12
11 1.4 20 14
150
6"
150
67.8113 5 QPC3 0.235.174 M07 1310
8 6.5 94 5.9 86 4.9 71 6.9 100 7 Q PC4 0.8 12 4.3 62
93.957 10 4.4640.1 1 5.580
10 3.1 45 0.5 7 4.4 64 0.2 3 3.8 55 0.8 12 5.2 75 12 1.8 26 0.8 12 4.3 62
11 2.0 29 14
12 1.7250.8123.9570.5 7 2.9421.2174.870
200
8
"
300
10 6.5 94 5.7 83 4.9 71 0.1 1 6.5 94 5 QPC4 0.2 3 5.1 74 M07 21 16
11 4.2 61 7 QPC5 0.8 12 4.3 62 M10 27 20
12 3.3 48 0.4 6 4.6 67 0.1 1 3.8 55 0.8 12 5.6 81 10
13 2.1 30 12 3.8550.2 3 5.377
16 1.7250.7103.9570.5 7 3.0441.2174.869 14
250
10"
600
11 8.3 120 5 QPC5 0.235.174 M12 2116
12 6.5 94 5.7 83 4.9 71 0.1 1 6 .9 100 7 M14 36 27
13 4.2 61 10
16 3.3 48 0.4 6 4.6 67 0.1 1 3.8 55 0.8 12 5.5 80 12 7.7 112 7.2 104
17 2.2 32 14 3.1450.5 7 4.768
20 1.8260.8123.8550.5 7 3.0441.2174.667
300
12"
1050
13 7.3 106 7 M14 60 44
16 5.7 83 5.5 80 4.7 68 0.3 4 6 .4 93 10
17 3.8 55 12
20 3.0 44 0.5 7 4.3 62 0.2 3 3.6 52 0.9 13 4.9 71 14 5.5 80 5.9 86
350
14"
1050
17 3.8 55 M15 60 44
20 3.0 44 0.5 7 4.3 62 0.2 3 3.6 52 0.9 13 4.9 71
25 2.3 33 0.6 9 4.2 61 0.3 4 3.4 49 1 15 4.8 70
400
16"
1630
17 8.3 120 M15 65 48
20 6.5 94 5.6 81 4.8 69 0.2 3 6 .2 90
25 3.4 49 4.4 64 0.2 3 3.8 55 0.8 12 5.1 74
32 1.7 25 3.8 55 0.5 7 3.0 44 1.2 17 4.7 68
450
18"
2280
25 4.7 68 4.9 71 4.2 61 0.5 7 5 .6 81 M15 92 68
32 2.3 33 4.2 61 0.3 4 3. 4 49 1 15 4.9 71
500
20"
3250
25 6.4 93 5.6 81 4.8 69 0.2 3 6 .2 90 M16 88 65
32 3.1 45 4.4 64 0.2 3 3.6 52 0.8 12 5.2 75
40 1.6 23
*) Spring = spring torque not adequete to reach tIghtness according to ISO 5208 Rate D, BS 6755 Part 1 Rate D, ANSI/FCI 70.2 Class V, IEC 534-4 or MSS-SP72/1970
**) Adjust the supply pressure regulator to the pressure below. Do not exceed given value.
Table 16. Series L6F/D, L4F/D, closing torques
22 2 L6 70 en
L6F/D
L4F/D
DN
SIZE
Mc
BC
and
BJ
BC
pc
BJ
pc
BJA**
pc
BJK
pc
BJKA**
pc
BJV
pc
BJVA**
pc
EC
and
EJ
EC
pc
EJ
pc
EJA
pc
Q-P
actuator
Spring close Spring open
Manual
operator
Input torque
M1
Nm lbf ft SIZE bar psi bar psi bar psi bar psi bar psi bar psi bar psi SIZE bar psi bar psi bar psi bar psi bar psi Nm lbf ft
600
24"
5330 3930
32 3.9 57 0.3 4 4.7 68 3.9 57 0.7 10 5.5 80 M25 147 108
40 1.8 26
322 0.7 10 3.9 57 0.4 6 3.1 45
700
28"
8710 6422
32 6.2 90 5.6 81 4.7 68 0.2 3 6.4 93
322 0.5 7 0.2 3
750
30"
40 3.0 44
800
32"
12740 9390
322 0.2 3
40 4.4 64
50 2.3 33
900
36"
15600 114 95
40 5.5 80
50 2.9 42
*) Spring = spring torque not adequete to reach tIghtness according to ISO 5208 Rate D, BS 6755 Part 1 Rate D, ANSI/FCI 70.2 Class V, IEC 534-4 or MSS-SP72/1970
**) Adjust the supply pressure regulator to the pressure below. Do not exceed given value.
Table 16. Continued
2 L6 70 en 23
L6FB
DN
SIZE
Mc
BC
and
BJ
SIZE
BC
pc
BJ
pc
BJA**
pc
BJK
pc
BJKA**
pc
BJV
pc
BJVA**
pc
EC
and
EJ
EC
pc
EJ
pc
EJA
pc
Manual
operator
Input torque
M1
Nm
lbf ft
bar
psi
bar
psi
bar
psi
bar
psi
bar
psi
bar
psi
bar
psi
SIZE bar
psi
bar
psi
bar
psi
150
6"
200
8"
230 170
96.087 M12 19 14
10
*)sprin
g
4.2 61
*)sprin
g
3.6 52 4.7 68
11 3.3 48
12 0.6 9 3.4 49 0.2 3 2.7 39 1.1 16 3.9 57
13 1.5 22
16 1.2171.0152.9440.6 9 2.3331.5163.652
17 1.2 17
250
10"
460 340
12
*)sprin
g
4.3 62
*)sprin
g
3.5 51 0.3 4 4.8 70 M14 35 26
13 3.1 45 M15 24 18
16 3.4 49 2.7 39 4.0 58
17 1.6 23
20 1.3191.0152.942
25 0.7 10 1.2 17 2 .2 32 0.8 12 1.6 23 1.7 25 2.7 39
300
12"
950 700
16 5.5 80
*)sprin
g
4.5 65
*)sprin
g
3.8 55 0.1 1 5.1 74 M15 50 37
17 3.4 49 M16 34 25
20 2.8 41 0.5 7 1.4 20 0.1 1 2.3 41 0.9 13 3.9 57
25 1.5220.9132.9420.6 9 2.3331.4203.449
32 0.7 10 1.2 17 2 .2 32 0.8 12 1.5 22 1.7 25 2.7 39
350
14"
1250 920
17 4.5 65 M15 66 49
20 3.7540.2 3 3.754
*)sprin
g
3.1 45 0.6 9 4.2 61 M16 44 32
25 1.9280.8123.1450.4 6 2.5361.3193.551 M25 4533
32 1.0 15 1.1 16 2 .8 49 0.8 12 2.1 30 1.6 23 3.3 48
40 0.5 7
400
16"
1600 1180
20 4.7 68
*)sprin
g
4.1 59
*)sprin
g
3.5 51 0.3 4 4.5 65 M16 56 41
25 2.5 36 0.6 9 3.2 46 0.3 4 2.6 38 1.1 16 3.7 54 M25 58 43
32 1.2 17 1.1 16 2 .9 42 0.7 10 2.2 32 1.5 22 3.4 49
322 1.3 19 2.3 33 0.9 13 1.6 23 1.7 25 2.8 41
40 0.6 9
450
18"
2000 1470
25 3.1 45 0.4 6 3.4 49 0.1 1 2.8 49 0.9 13 3.9 57 M25 72 53
32 1.5221.0153.0440.6 9 2.3331.5223.551
322 1.2 17 2.2 32 0.8 12 1.5 22 1.7 25 2.7 39
40 0.7 10
50 0.4 6
500
20"
2430
32 2.5 36 0.6 9 3.3 48 0.3 4 2.7 39 1.1 16 3.8 55 M25 120 88
322 1.1 16 2.0 29 0.7 10 1.4 20 1.5 22 2.5 36
40 1.1 16
50 0.6 9
*) Spring=spring torque not adequete to reach tightness according to ISO 5208 Rate D, BS 6755 Part 1 Rate D, ANSI/FCI 70.2 Class V, IEC 534-4 or MSS-SP72/1970
**) Adjust the supply pressure regulator to the pressure below. Do not exceed given value.
Table 17. Series L6FB, closing torques
24 2 L6 70 en
L6FB
DN
SIZE
Mc
BC
and
BJ
SIZE
BC
pc
BJ
pc
BJA**
pc
BJK
pc
BJKA**
pc
BJV
pc
BJVA**
pc
EC
and
EJ
EC
pc
EJ
pc
EJA
pc
Manual
operator
Input torque
M1
Nm
lbf ft
bar
psi
bar
psi
bar
psi
bar
psi
bar
psi
bar
psi
bar
psi
SIZE bar
psi
bar
psi
bar
psi
600
24"
6000
4420
32 4.6 67
*)sprin
g
4.1 59
*)sprin
g
3.4490.4 6 4.667
322 0.7 10 3.3 48 0.3 4 2.6 38 1.2 17 3.8 55
40 2.2 32
50 1.1 16
502 0. 4 6
700, 750
28", 30"
8000 5890
322 0.4 6 3.6 52 0.1 1 2.9 42 0.9 13 4.0 58
40 3.0 44
50 1.5 22
800
32"
322
40
50
502
900
36"
50
502
602
752
*) Spring=spring torque not adequete to reach tightness according to ISO 5208 Rate D, BS 6755 Part 1 Rate D, ANSI/FCI 70.2 Class V, IEC 534-4 or MSS-SP72/1970
**) Adjust the supply pressure regulator to the pressure below. Do not exceed given value.
Table 17. Continued
2 L6 70 en 25
10
16
1
17
20
9
42
24
25
13
11
14
3
14
12
2
27
26a
4
19
2
15
18
15
30
44
26b
9 EXPLODED VIEW AND PARTS LIST
9.1 L6C, L6D
Item Qty Description Spare part category
11Body
21Clamp ring
31Disc 3
41Seat ring 2
91Gland
10 1 Blind flange
11 1 Drive shaft 3
12 1 Shaft 3
13 1 Key 3
14 3 Pin 3
15 1 Bearing 3
16 1 Bearing 3
17 2 Thrust bearing
18 1 Gasket 1
19 1 Body seal 1
20 1 set Gland packing 1
21 1 Spring washer
22 1 Anti-extrusion ring
24 2 Stud
25 2 Hexagon nut
26a 4 Stud
26b 4 Nut
27 Socket head screw
29 1 Identification plate
30 Washer
42 2 Retaining plate
44 2 Disc spring set
Spare part set category 1: Recommended soft parts, always needed for the repair. Delivered as a set.
Spare part category 2: Parts for replacing of the seat
Spare part category 3: Parts for replacing of the closing element
Spares for the full overhaul: All parts from the categories 1, 2 and 3
26 2 L6 70 en
9.2 L6F
26b
26a
10
18
16
15
1
14
15
20
12
9b
42
9a
24
44
3
14
13
25
19
4
2
27
11
Item Qty Description Spare part category
11Body
21Clamp ring
31Disc 3
41Seat ring 2
9a 1 Casting gland
9b 1 Compression ring
10 1 Blind flange
11 1 Drive shaft 3
12 1 Shaft 3
13 1 Key 3
14 3 Pin 3
15 4 Bearing 3
16 2 Bearing 3
18 1 Gasket 1
19 1 Body seal 1
20 1 set Gland packing 1
24 4 Stud
25 4 Nut
26a 4* Stud
26b 4* Nut
27 Socket head screw
29 1 Identification plate
42 1 Retainer ring
44 4 Disc spring set
* Note: L6F-series sizes 28"...36" studs and nuts 6 pcs.
Spare part set category 1: Recommended soft parts, always needed for the repair. Delivered as a set.
Spare part category 2: Basic repair (eg. changing of the seat)
Spare part category 3: Full repair (eg. changing of the closing element)
Spares for the full overhaul: All parts from the categories 1, 2 and 3
2 L6 70 en 27
C
M
L6F/D; NPS 4 - 36
L6C; NPS 4 - 32
L6D; NPS 4 - 28
L6C; , 72, 80NPS 36 - 56
L6D; NPS 32, 36, 40, 56
L6C; NPS 64
L6D; NPS 42, 48
V
U
T
T
T
U
U
V
V
S
S
M
A
A1
E
K
R
N
øD
øO
øB1
øB
øH
S
NPS
P
10 DIMENSIONS AND WEIGHTS
L6C, ASME CLASS 150
NPS Dimensions, mm kg U V
NPS Dimensions, in lb U V
*) Size 28" and bigger acc. to ASME B16.47 Series A, drilling for sizes 64" and bigger to be agreed with the factory
A A1 øB øB1 øH øD C E øO R P M N K S T
4 127 74 230 157.2 190.5 19 90 273 15 105 17 4.76 25 248 70 - 25 M10 M8
5 140 80 255 185.7 215.9 23 135 307 20 125 22.2 4.76 35 272 90 - 34 M12 M8
6 140 79 280 215.9 241.3 23 135 330 20 125 22.2 4.76 35 295 90 - 40 M12 M8
8 152 82.5 345 269.9 298.5 23 160 352 20 125 22.2 4.76 35 317 110 32 60 M12 M8
10 165 88 405 323.8 362 26 185 393 25 136 27.8 6.35 46 347 110 32 85 M12 M10
12 178 104 485 381 431.8 26 225 451 30 161 32.9 6.35 51 400 130 32 120 M12 M10
14 190 118 535 412.8 476.3 29 280 490 35 170 39.1 9.52 58 430 130 32 150 M12 M10
16 216 134 595 469.9 539.8 29 315 545 40 190 44.2 9.52 68 475 160 40 220 M16 M10
18 222 131 635 533.4 577.9 32 340 568 45 200 50.4 12.7 80 488 160 40 250 5/8 1/2
20 229 129 700 584.2 635 32 370 608 50 230 55.5 12.7 90 518 160 55 320 3/4 1/2
24 267 158 815 692.2 749.3 35 435 669 55 230 60.6 12.7 90 579 160 55 490 3/4 1/2
28* 292 144 925 800 863.6 35 464 820 70 300 78.2 19.05 119 701 230 90 700 1 5/8
30* 318 170 985 857 914.4 35 492 785 70 300 78.2 19.05 119 666 230 90 850 1 5/8
32* 318 159 1060 914 977.9 42 530 875 85 325 94.7 22.23 146 730 230 90 1050 1 5/8
36* 330 150 1170 1022 1085.8 42 630 995 95 375 104.8 22.23 156 839 330 120 1350 1 1/4 3/4
38* 330 150 1240 1073 1149.3 42 695 1085 95 375 104.8 22.23 156 929 330 120 1400 1 1/4 3/4
40* 410 222 1290 1124 1200.2 42 645 1090 105 395 116 25.4 180 913 330 120 1600 1 1/4 3/4
48* 470 256 1510 1359 1422.4 42 756 1235 120 425 133.8 31.75 205 1030 330 120 2300 1 1/4 3/4
56* 530 288 1745 1575 1651 48 1001 1470 150 530 181 38.1 280 1190 400 160 4600 1 1/2 1 1/4
64* 600 370 1870 1714 1790 38 1097 1540 165 530 181 38.1 280 1260 400 160 5200 1 1/2 1 1/4
72* 356 160.5 2020 1917 1957 29 1130 1512 135 475 148.9 31.75 225 1287 360 135 4800 1 1/4 7/8
80* 540 274.5 2345 2213 2257 45 1173 1700 135 475 148.9 31.75 225 1475 360 135 6900 1 1/4 7/8
A A1 øB øB1 øH øD C E øO R P M N K S T
4 5.00 2.91 9.13 6.18 7.50 0.75 3.54 10.75 0.59 4.13 0.67 0.19 0.98 9.76 2.76 - 55 M10 M8
5 5.51 3.15 10.12 7.31 8.50 0.91 5.31 12.09 0.79 4.92 0.87 0.19 1.38 10.71 3.54 - 75 M12 M8
6 5.51 3.11 11.81 8.50 9.50 0.91 5.31 12.99 0.79 4.92 0.87 0.19 1.38 11.61 3.54 - 88 M12 M8
8 5.98 3.25 13.62 10.62 11.75 0.91 6.30 13.86 0.79 4.92 0.87 0.19 1.38 12.48 4.33 1.26 132 M12 M8
10 6.50 3.46 16.18 12.75 14.25 1.02 7.28 15.47 0.98 5.35 1.09 0.25 1.81 13.66 4.33 1.26 187 M12 M10
12 7.01 4.09 19.21 15.00 17.00 1.02 8.86 17.76 1.18 6.34 1.30 0.25 2.01 15.75 5.12 1.26 264 M12 M10
14 7.48 4.65 21.22 16.25 18.75 1.14 11.02 19.29 1.38 6.69 1.54 0.37 2.28 16.93 5.12 1.26 330 M12 M10
16 8.50 5.28 23.70 18.50 21.25 1.14 12.40 21.46 1.57 7.48 1.74 0.37 2.68 18.70 6.30 1.57 484 M16 M10
18 8.74 5.16 25.00 21.00 22.75 1.26 13.39 22.36 1.77 7.87 1.98 0.50 3.15 19.21 6.30 1.57 550 5/8 1/2
20 9.02 5.08 27.52 23.00 25.00 1.26 14.57 23.94 1.97 9.06 2.19 0.50 3.54 20.39 6.30 2.17 704 3/4 1/2
24 10.51 6.22 32.01 24.77 29.50 1.38 17.13 26.34 2.17 9.06 2.39 0.50 3.54 22.80 6.30 2.17 1078 3/4 1/2
28* 11.50 5.67 36.50 31.50 34.00 1.38 18.27 32.28 2.76 11.81 3.08 0.75 4.69 27.60 9.06 3.54 1540 1 5/8
30* 12.52 6.69 38.74 33.75 36.00 1.38 19.37 30.91 2.76 11.81 3.08 0.75 4.69 26.22 9.06 3.54 1870 1 5/8
32* 12.52 6.26 41.73 36.00 38.50 1.65 20.87 34.45 3.35 12.80 3.73 0.88 5.75 28.74 9.06 3.54 2310 1 5/8
36* 12.99 5.91 45.98 40.25 42.75 1.65 24.80 39.17 3.74 14.76 4.13 0.88 6.14 33.03 12.99 4.72 2970 1 1/4 3/4
38* 12.99 5.91 48.74 42.24 45.25 1.65 27.36 42.72 3.74 14.76 4.13 0.88 6.14 36.57 12.99 4.72 3080 1 1/4 3/4
40* 16.14 8.74 50.75 44.25 47.24 1.65 25.39 42.91 4.13 15.55 4.57 1.00 7.08 35.94 12.99 4.72 3520 1 1/4 3/4
48* 18.50 10.08 59.49 53.50 56.00 1.65 29.76 48.62 4.72 16.73 5.27 1.25 8.07 40.55 12.99 4.72 5060 1 1/4 3/4
56* 20.87 11.34 68.90 62.01 65.00 1.89 39.41 57.87 5.91 20.87 7.13 1.50 11.02 46.85 15.75 6.30 10120 1 1/2 1 1/4
64* 23.62 14.57 73.62 67.48 70.47 1.50 43.19 60.63 6.50 20.87 7.13 1.50 11.02 49.61 15.75 6.30 11440 1 1/2 1 1/4
72* 14.02 18.13 83.46 78.39 80.00 1.14 44.49 59.53 5.31 18.70 5.86 1.25 8.86 50.67 14.17 5.31 10560 1 1/4 7/8
80* 21.26 10.81 92.32 87.13 88.86 1.77 46.18 66.93 5.31 18.70 5.86 1.25 8.86 58.07 14.17 5.31 15180 1 1/4 7/8
28 2 L6 70 en
L6D, ASME CLASS 300
NPS Dimensions, mm kg U V
A A1 øB øB1 øH øD C E øO R P M N K S T
4 127 74 255 157.2 200 23 90 273 15 105 17 4.76 25 248 70 - 34 M10 M8
5 140 80 280 185.7 235 23 120 307 20 125 22.2 4.76 35 272 90 - 50 M12 M8
6 140 79 320 215.9 269.9 23 135 330 20 125 22.2 4.76 35 295 90 - 60 M12 M8
8 152 80 380 269.9 330.2 26 165 368 25 136 27.8 6.35 46 322 110 32 90 M12 M10
10 165 83 445 323.8 387.4 29 205 440 35 166 39.1 9.52 58 382 130 32 135 M12 M10
12 178 96.5 520 381 450.8 32 280 520 45 200 50.4 12.7 80 440 160 40 200 M16 M14
14 190 110.5 585 412.8 514.4 32 335 590 50 230 55.5 12.7 90 500 160 55 250 M20 M14
16 216 126.5 650 469.9 571.5 35 375 630 55 230 60.6 12.7 90 540 160 55 330 M20 M14
18 222 115.5 710 533.4 628.6 35 395 725 70 310 78.2 19.05 119 606 230 90 420 1 5/8
20 229 116 775 584.2 685.8 35 445 750 70 310 78.2 19.05 119 631 230 90 510 1 5/8
24 267 140 915 692.2 812.8 41 510 810 85 310 94.7 22.23 146 664 230 90 760 1 5/8
26 292 140 970 749 876.3 45 575 955 95 375 104.8 25.4 156 799 330 120 900 1 1/4 3/4
28* 292 140 1035 800 939.8 45 575 975 95 395 104.8 25.4 156 819 330 120 1100 1 1/4 3/4
32* 318 159 1150 914 1054 51 640 1055 120 425 133.8 31.75 205 850 330 120 1400 1 1/4 1
36* 330 165 1270 1022 1168.4 54 780 1175 135 475 149 31.75 225 950 360 135 1900 1 1/4 1 1/4
40* 410 165 1240 1086 1155.7 45 780 1175 135 475 149 31.75 225 950 360 135 1900 1 1/4 1 1/4
42* 410 205 1290 1137 1206.5 45 820 1260 165 530 181 38.1 280 980 360 135 2530 1 1/4 1 1/4
48* 470 255 1465 1302 1371.6 51 940 1380 165 530 181 38.1 280 1100 360 135 3530 1 1/4 1 1/4
56* 530 285 1710 1518 1600.2 60 1110 1590 200 590 222.1 50.8 340 1250 460 180 5650 1 1/2 1 1/2
NPS Dimensions, in lb U V
A A1 øB øB1 øH øD C E øO R P M N K S T
4 5.00 2.91 10.12 6.19 7.87 0.91 3.54 10.75 0.59 4.13 0.67 0.19 0.98 9.76 2.76 - 75 M10 M8
5 5.51 3.15 11.14 7.31 9.25 0.91 4.72 12.09 0.79 4.92 0.87 0.19 1.38 10.71 3.54 - 110 M12 M8
6 5.51 3.11 12.64 8.50 10.63 0.91 5.31 12.99 0.79 4.92 0.87 0.19 1.38 11.61 3.54 - 132 M12 M8
8 5.98 3.15 15.12 10.62 13.00 1.02 6.50 14.49 0.98 5.35 1.09 0.25 1.81 12.68 4.33 1.26 198 M12 M10
10 6.50 3.27 17.72 12.75 15.25 1.14 8.07 17.32 1.38 6.54 1.54 0.37 2.28 15.04 5.12 1.26 297 M12 M10
12 7.01 3.80 20.71 15.00 17.75 1.26 11.02 20.47 1.77 7.87 1.98 0.50 3.15 17.32 6.30 1.57 440 M16 M14
14 7.48 4.35 23.19 16.25 20.25 1.26 13.19 23.23 1.97 9.06 2.19 0.50 3.54 19.69 6.30 2.17 550 M20 M14
16 8.50 4.98 26.18 18.50 22.50 1.38 14.76 24.80 2.17 9.06 2.39 0.50 3.54 21.26 6.30 2.17 726 M20 M14
18 8.74 4.55 28.00 21.00 24.75 1.38 15.55 28.54 2.76 12.20 3.08 0.75 4.69 23.86 9.06 3.54 924 1 5/8
20 9.02 4.57 30.50 23.01 27.00 1.38 17.52 29.53 2.76 12.20 3.08 0.75 4.69 24.84 9.06 3.54 1122 1 5/8
24 10.51 5.51 36.00 27.25 32.00 1.61 20.08 31.89 3.35 12.20 3.73 0.88 5.75 26.14 9.06 3.54 1672 1 5/8
26 11.50 5.51 38.27 29.50 34.50 1.77 22.64 37.60 3.74 14.76 4.13 1.00 6.14 31.46 12.99 4.72 1980 1 1/4 3/4
28* 11.50 5.51 40.75 31.50 37.00 1.77 22.64 38.39 3.74 15.55 4.13 1.00 6.14 32.24 12.99 4.72 2420 1 1/4 3/4
32* 12.52 6.26 45.28 37.80 41.50 2.01 25.20 41.54 4.72 16.73 5.27 1.25 8.07 33.46 12.99 4.72 3080 1 1/4 1
36* 12.99 6.50 50.00 40.25 46.00 2.13 30.71 46.26 5.31 18.70 5.87 1.25 8.86 37.40 14.17 5.31 4180 1 1/4 1 1/4
40* 16.14 6.50 48.74 42.75 45.50 1.77 30.71 46.26 5.31 18.70 5.87 1.25 8.86 37.40 14.17 5.31 4180 1 1/4 1 1/4
42* 16.14 8.07 50.75 40.35 47.50 1.77 32.28 49.61 6.50 20.87 7.13 1.50 11.02 38.58 14.17 5.31 5566 1 1/4 1 1/4
48* 18.50 10.04 57.76 51.25 54.00 2.01 37.01 54.33 6.50 20.87 7.13 1.50 11.02 43.31 14.17 5.31 7766 1 1/4 1 1/4
56* 20.87 11.22 67.24 59.75 63.00 2.36 43.70 62.60 7.87 23.23 8.74 2.00 13.39 49.21 18.11 7.09 12430 1 1/2 1 1/2
*) Size 28" and bigger acc. to ASME B16.47 Series A
2 L6 70 en 29
L6F/D, ASME CLASS 600/300
NPS Dimensions, mm kg U V
A A1 øB øB1 øH øD C E øO R P M N K S T
4 190 110 275 157.2 215.9 26 110 270 15 125 17 4.76 25 245 110 32 45 3/8 3/8
6 210 125 355 215.9 292.1 29 150 315 20 115 22.7 4.76 35 280 110 32 90 1/2 3/8
8 230 177 420 269.9 349.2 32 225 376 25 146 27.8 6.35 46 330 110 32 150 1/2 1/2
10 250 145 510 323.8 431.8 35 220 443 35 158 39.1 9.53 58 385 160 40 215 5/8 5/8
12 270 181 560 381 489 35 326 612 45 230 50.4 12.7 80 532 230 90 350 1 3/4
14 290 180 605 412.8 527.0 38 350 585 45 230 50.4 12.7 80 505 230 90 410 1 3/4
16 310 202 685 469.9 603.2 41 400 666 50 230 55.5 12.7 90 576 230 90 450 1 3/4
18 330 220 745 533.4 654.0 45 420 629 55 239 60.6 12.7 90 539 230 90 600 1 1/2
20 350 243.5 815 584.2 723.9 45 460 778 70 278 78.15 19.05 119 659 230 90 895 1 1
24 390 256.5 940 692.2 838.2 51 490 1451 85 846 94.625 22.225 146 1305 330 120 1225 1 1/4 1 1/4
28* 430 200 1075 800 863.6 48 565 1605 95 980 104.825 22.225 156 1449 330 120 1625 1 1/4 1 1/4
30* 430 200 1130 857 1022.3 54 646 1006 95 381 104.825 22.225 156 850 330 120 1795 1 1/4 1 1/4
36* 510 345 1315 1022 1193.8 67 710 1600 135 890 148.95 31.75 225 1375 360 135 2770 1 1/4 1 1/4
NPS Dimensions, in lb U V
A A1 øB øB1 øH øD C E øO R P M N K S T
4 7.48 4.33 10.75 6.19 8.50 1.02 4.33 10.63 0.59 4.92 0.67 0.19 0.98 9.65 4.33 1.26 99 3/8 3/8
6 8.27 4.92 14.02 8.50 11.50 1.14 5.91 12.40 0.79 4.53 0.89 0.19 1.38 11.02 4.33 1.26 198 1/2 3/8
8 9.06 6.97 16.54 12.13 13.75 1.26 8.86 14.80 0.98 5.75 1.09 0.25 1.81 12.99 4.33 1.26 330 1/2 1/2
10 9.84 5.71 20.00 14.00 17.00 1.38 8.66 17.44 1.38 6.22 1.54 0.38 2.28 15.16 6.30 1.57 473 5/8 5/8
12 10.63 7.13 22.01 15.00 19.25 1.38 12.83 24.09 1.77 9.06 1.98 0.50 3.15 20.94 9.06 3.54 770 1 3/4
14 11.42 7.09 23.82 16.26 20.75 1.50 13.78 23.03 1.77 9.06 1.98 0.50 3.15 19.88 9.06 3.54 902 1 3/4
16 12.20 7.95 27.01 20.00 23.75 1.61 15.75 26.22 1.97 9.06 2.19 0.50 3.54 22.68 9.06 3.54 990 1 3/4
18 12.99 8.66 29.25 21.00 25.75 1.77 16.54 24.76 2.17 9.41 2.39 0.50 3.54 21.22 9.06 3.54 1320 1 1/2
20 13.78 9.59 32.22 21.26 28.50 1.77 18.11 30.63 2.76 10.94 3.08 0.75 4.69 25.94 9.06 3.54 1969 1 1
24 15.35 10.10 37.50 24.72 33.00 2.01 19.29 57.13 3.35 33.31 3.73 0.88 5.75 51.38 12.99 4.72 2695 1 1/4 1 1/4
28* 16.93 7.87 42.24 30.31 34.00 1.89 22.24 63.19 3.74 38.58 4.13 0.88 6.14 57.05 12.99 4.72 3575 1 1/4 1 1/4
30* 16.93 7.87 44.49 29.50 40.25 2.13 25.43 39.61 3.74 15.00 4.13 0.88 6.14 33.46 12.99 4.72 3949 1 1/4 1 1/4
36* 20.08 13.58 51.73 38.87 47.00 2.64 27.95 62.99 5.31 35.04 5.86 1.25 8.86 54.13 14.17 5.31 6094 1 1/4 1 1/4
*) Size 28" and bigger acc. to ASME B16.47 Series A
30 2 L6 70 en
ØS
T
M
U
V
>-"42
T
M
S
U
V
"02>-
ØD
EC
N
P
ØO
K
R
X
A
ØB
ØH
ØB1
Y (*)
NPS
A1
L6F, ASME CLASS 600
NPS Dimensions, mm kg U V X Y
AA1ØBØB1ØHØDC E KØOR P M N S T
6 210 119 355 215.9 292.1 28.5 216 413.5 362.5 30 161 33.45 6.35 51 130 35 93 M12 M12 - -
8 230 157.3 420 269.9 349.2 32 256 458 400 35 178 39.2 9.525 58 160 40 148 M16 M12 - -
10 250 145 510 323.8 431.8 35 310 530 450 45 200 51 12.7 80 160 40 270 M16 M14 - -
12 270 174.5 560 381 489 35 345 629 539 50 270 56.1 12.7 90 230 90 330 M24 M20 24.6 -
14 290 168 605 412.8 527.1 38 360 652.5 562.5 55 270 61.2 12.7 90 230 90 384 M24 M18 27.4 -
16 310 193 685 469.9 603.2 41 425 727 603 70 314 78.2 19.05 119 230 90 560 M24 M20 45.7 -
18 330 200 745 533.4 654 45 485 788 642 85 326 94.7 22.225 146 230 90 680 M24 M20 55 -
20 350 213.5 815 584.2 723.9 45 547 885 739 85 366 94.7 22.225 146 330 120 880 M30 M20 72.4 6.5
24 390 256.5 940 692.2 838.2 51 570 962 806 95 376 105.8 22.225 156 330 120 1290 M30 M30 97 -
28 430 200 1075 800 965.2 54 725 1115 935 105 430 116.3 25.4 180 360 135 1400 M30 M30 97.1 51.8
30 430 200 1130 857 1022.4 54 725 1115 935 105 430 116.3 25.4 180 360 135 2100 M30 M30 51.8 97.1
36 510 320 1315 1022 1193.8 67 845 1292 1042 150 500 169 38.1 250 400 160 3150 M3 M36 190.6 79.5
NPS
Dimensions, in
lb U V X Y
AA1ØBØB1ØHØDC E KØOR P M N S T
6 8.27 4.68 13.98 8.50 11.50 1.12 8.50 16.28 14.27 1.18 6.33 1.31 0.25 2.01 5.12 1.38 227 M12 M12 - -
8 9.06 6.19 16.54 10.63 13.75 1.26 10.08 18.03 15.75 1.38 7.01 1.54 0.38 2.28 6.30 1.57 326 M16 M12 - -
10 9.84 5.71 20.08 12.75 17.00 1.38 12.20 20.87 17.72 1.77 7.87 2.01 0.50 3.15 6.30 1.57 595 M16 M14 - -
12 10.63 6.87 22.05 15.00 19.25 1.38 13.58 24.76 21.22 1.97 10.63 2.21 0.50 3.54 9.06 3.54 728 M24 M20 0.97 -
14 11.42 6.61 23.82 16.25 20.75 1.50 14.17 25.69 22.15 2.17 10.63 2.41 0.50 3.54 9.06 3.54 847 M24 M18 1.08 -
16 12.20 7.60 26.97 18.50 23.75 1.61 16.73 28.62 23.74 2.76 12.36 3.08 0.75 4.69 9.06 3.54 1235 M24 M20 1.80 -
18 12.99 7.87 29.33 21.00 25.75 1.77 19.09 31.02 25.28 3.35 12.83 3.73 0.88 5.75 9.06 3.54 1499 M24 M20 2.17 -
20 13.78 8.41 32.09 23.00 28.50 1.77 21.54 34.84 29.09 3.35 14.41 3.73 0.88 5.75 12.99 4.72 1940 M30 M20 2.85 0.26
24 15.35 10.10 37.01 27.25 33.00 2.01 22.44 37.87 31.73 3.74 14.80 4.17 0.88 6.14 12.99 4.72 2844 M30 M30 3.82 -
28 16.93 7.87 42.32 31.15 38.00 2.13 28.54 43.90 36.81 4.13 16.93 4.58 1.00 7.09 14.17 5.31 3150 M30 M30 3.82 2.04
30 16.93 7.87 44.49 33.74 40.25 2.13 28.54 43.90 36.81 4.13 16.93 4.58 1.00 7.09 14.17 5.31 4630 M30 M30 2.04 3.82
36 20.08 12.60 51.77 40.24 47.00 2.64 33.27 50.87 41.02 5.91 19.69 6.65 1.50 9.84 15.75 6.30 6945 M36 M36 7.50 3.13
2 L6 70 en 31
CE
O
M
R
Di
NPS
N
P
øB
øH
SIZES, NPS 04-08
T
S
U
SIZES, NPS 10-28
øB1
A1
A
S
Only sizes
24" and
28"
V
L4F/D, ASME CLASS 600/300
Size Dimensions, mm UNC Weight
NPS Di A A1 øB øB1 C E O R P M N S T U V
04 3 64 26 275 157.2 135 270 15 125 17.0 4.76 25 110 32 1/2 3/8 17
06 5 76 30 355 215.9 190 335 20 135 22.2 4.76 35 110 32 1/2 3/8 30
08 6 89 36 420 269.9 225 386 25 146 27.8 6.35 46 110 32 1/2 1/2 65
10 8 114 49 510 323.8 300 525 35 180 39.1 9.52 58 160 40 5/8 5/8 140
12 10 178 89 560 381 326 612 45 230 50.4 12.70 80 230 90 1 3/4 190
14 10 190 95 605 412.8 350 585 45 230 50.4 12.70 80 230 90 1 3/4 270
16 12 216 108 685 469.9 400 676 50 240 55.5 12.70 90 230 90 1 3/4 300
20 16 229 122.5 815 584.2 460 778 70 278 78.2 19.05 119 230 90 1 1 450
24 20 267 133.5 940 692.2 560 951 85 346 94.7 22.23 146 330 120 1 1/4 1 660
28* 24 292 140 1075 800 640 1006 95 316 104.8 22.23 156 330 120 1 1/4 1 840
32* 28 318 159 1195 914 660 1066 120 426 133.7 31.75 205 330 120 1 1/4 1 1225
36* 30 330 165 1315 1022 685 1195 135 475 148.9 31.75 225 360 135 1 1/4 1 1625
Size Dimensions, in UNC Weight
NPS Di A A1 øB øB1 C E O R P M N S T U V
04 3 2.52 1.02 10.83 6.19 5.31 10.63 0.59 4.92 0.67 0.19 0.98 4.33 1.26 1/2 3/8 37
06 5 2.99 1.18 13.98 8.50 7.48 13.19 0.79 5.31 0.87 0.19 1.38 4.33 1.26 1/2 3/8 66
08 6 3.50 1.42 16.54 10.63 8.86 15.20 0.98 5.75 1.09 0.25 1.81 4.33 1.26 1/2 1/2 143
10 8 4.49 1.93 20.08 12.75 11.81 20.67 1.38 7.09 1.54 0.37 2.28 6.30 1.57 5/8 5/8 308
12 10 7.01 3.50 22.05 15.00 12.83 24.09 1.77 9.06 1.98 0.50 3.15 9.06 3.54 1 3/4 418
14 10 7.48 3.74 23.82 16.25 13.78 23.03 1.77 9.06 1.98 0.50 3.15 9.06 3.54 1 3/4 594
16 12 8.50 4.25 26.97 18.50 15.75 26.61 1.97 9.45 2.19 0.50 3.54 9.06 3.54 1 3/4 660
20 16 9.02 4.82 32.09 23.00 18.11 30.63 2.76 10.94 3.08 0.75 4.69 9.06 3.54 1 1 990
24 20 10.51 5.26 37.01 27.25 22.05 37.44 3.35 13.62 3.73 0.88 5.75 12.99 4.72 1 1/4 1 1450
28* 24 11.50 5.51 42.32 31.50 25.20 39.61 3.74 12.44 4.13 0.88 6.14 12.99 4.72 1 1/4 1 1848
32* 28 12.52 6.26 47.05 35.98 25.98 41.97 4.72 16.77 5.26 1.25 8.07 12.99 4.72 1 1/4 1 2695
36* 30 12.99 6.50 51.77 40.24 26.97 47.05 5.31 18.70 5.86 1.25 8.86 14.17 5.31 1 1/4 1 3575
*) Size 28" and bigger acc. to ASME B16.47 Class A
kg
lb
32 2 L6 70 en
’) See dimensions K and øB on pages 25 and 28
VALVE + MANUAL GEAR OPERATOR
Ø Z
G
F
SHUT
OPEN
OPEN
SHUT
V
Type Dimensions, mm kg
FGJ VZ
M07 241 185 65 52 160 3
M10 241 185 65 52 200 5
M12 304 235 88 71 315 10
M14 405 305 93 86 400 18
M15 456 346 102 105 500 31
M16 530 389 124 130 500 45
M25 597 412 160 182 600 61
VALVE + PNEUMATIC ACTUATOR B1C, B1J, B1JA
NPT
Ø B*)
K*) J
Type Dimensions, in lb
FGJ VZ
M07 9.40 7.21 2.53 2.03 6.24 6
M10 9.40 7.21 2.53 2.03 7.80 11
M12 11.85 9.16 3.43 2.77 12.28 21
M14 15.80 11.90 3.63 3.35 15.60 40
M15 17.78 13.49 3.98 4.09 19.50 68
M16 20.67 15.17 4.84 5.07 19.50 99
M25 23.28 16.07 6.24 7.10 23.40 134
NPT
V
Type Dimensions, mm NPT kg
XGFV J
B1C6 90 260 400 36 283 1/4 4,2
B1C9 110 315 455 43 279 1/4 9,6
B1C11 135 375 540 51 290 3/8 16
B1C13 175 445 635 65 316 3/8 31
B1C17 215 545 770 78 351 1/2 54
B1C20 215 575 840 97 385 1/2 73
B1C25 265 710 1040 121 448 1/2 131
B1C32 395 910 1330 153 525 3/4 256
B1C40 505 1150 1660 194 595 3/4 446
B1C50 610 1350 1970 242 690 1 830
ØB*
X
G
F max.
K*
J
Type Dimensions, in NPT lb
XGF V J
B1C6 3.54 10.24 15.75 1.42 11.14 1/4 9
B1C9 4.33 12.40 17.91 1.69 10.98 1/4 21
B1C11 5.31 14.76 21.26 2.01 11.42 3/8 35
B1C13 6.89 17.52 25.00 2.56 12.44 3/8 68
B1C17 8.46 21.46 30.31 3.07 13.82 1/2 119
B1C20 8.46 22.64 33.07 3.82 15.16 1/2 161
B1C25 10.43 27.95 40.94 4.76 17.64 1/2 289
B1C32 15.55 35.83 52.36 6.02 20.67 3/4 564
B1C40 19.88 45.28 65.35 7.64 23.43 3/4 983
B1C50 24.02 53.15 77.56 9.53 27.17 1 1829
Type Dimensions, mm NPT kg
XGF V J
B1J, B1JA8 135 420 560 43 279 3/8 17
B1J, B1JA10 175 490 650 51 290 3/8 30
B1J, B1JA12 215 620 800 65 316 1/2 57
B1J, B1JA16 265 760 990 78 351 1/2 100
B1J, B1JA20 395 935 1200 97 358 3/4 175
B1J, B1JA25 505 1200 1530 121 448 3/4 350
B1J, B1JA32 540 1410 1830 153 525 1 671
Type Dimensions, in NPT lb
XGFV J
B1J, B1JA8 5.31 16.54 22.05 1.69 10.98 3./8 37
B1J, B1JA10 6.89 19.29 25.59 2.01 11.42 3/8 66
B1J, B1JA12 8.46 24.41 31.5 2.56 12.44 1/2 126
B1J, B1JA16 10.43 29.92 38.98 3.07 13.82 1/2 220
B1J, B1JA20 15.55 36.81 47.24 3.82 14.09 3/4 386
B1J, B1JA25 19.88 47.24 60.24 4.76 17.64 3/4 771
B1J, B1JA32 21.26 55.51 72.05 6.02 20.67 1 1479
2 L6 70 en 33
11 TYPE CODE
NELDISC® HIGH PERFORMANCE TRIPLE ECCENTRIC DISC VALVE
Series L6, L4
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.
L6 C B N 08 P A C A G /
1. S-DISC CONSTRUCTION
S- Flow balancing trim on downstream side of body flow port
2. PRODUCT SERIES / DESIGN
L6C and L6D pressure ratings are flanged and face-to-face
according to EN 558 part 1, basic serie 13, ISO 5752 series 13,
API 609 category B, double flanged, short pattern
L6
L6F and L6F/D are flanged and face-to-face according to EN
558 part 1, basic serie 14, ISO 5752 series 14, API 609 category B
Wafer, reduced bore, face-to-face: ISO 5752 series 16 / BS 5155 /
L4
API 609 4" to 10" and series 13 / BS 5155 12" to 28"
3. PRESSURE RATING
C Body ASME Class 150
D Body ASME Class 300
F Body ASME Class 600
F/D Body ASME cl.600 / Internals ASME cl.300
4. SEAT DESIGN
Metal seat
- actuator mounting neles standard / metric threads with drive
B
shaft with 2 key ways
not
- pipe flange threads according to pipe flange standard applied
L6F/D
(sign 13)
Used together with sign 5, codes N, C, H, S (also NACE versions)
5. CONSTRUCTION
STANDARD in size range 4"...24"(cl.150, cl.300)
STANDARD in size range 6"...40" (cl.600, not L6F/D)
- t
N
or
1N (NACE)
A
U
or
1U (NACE)
H
or
1H (NACE)
C
X
or
1X (NACE)
S
or
1S (NACE)
Z
= +425 °C / +800 °F
max
- bearings cobalt based alloy, shaft bearing surface nitrated
(17-4PH shaft)
- body and blind flange gaskets graphite
- bare shaft valve ATEX II 2 G c
- not used in L6F/D
Standard design in size range 04"...24" (cl.150, cl.300)
-Bearings PTFE + C25 +AISI 316 or PTFE + C25 + Alloy 625
depending on body material, shaft bearing surface non-nitrated.
- tmax = +260 °C / +500 °F
- Gr. 630 (17-4PH) shaft
- body and blind flange gaskets graphite
Standard design in size range 28"...80" (cl.150, cl.300) and 4"-36"
(L6F/D)
- Tmax + 425 °C/+800 °F
- shaft bearings surfaces chrome plated
- bearings NITRONIC 60 (not NACE)
- bearings cobalt based alloy (NACE )
- body and blind flange gaskets graphite
- clamp ring screws Gr. 660 (NACE)
- bare shaft valve ATEX II 2 G c
High temperature, t
- bearing surfaces of shafts cobalt based alloy
- bearings cobalt based alloy
-body and blind flange gaskets graphite
(ATEX II 2 G c)
Cryogenic, t= -200 °C...+260 °C, code C
- extended bonnet and drive shaft
(Cryo extension for T = -200 °C to +260 °C)
- bearings PTFE+ C25 + AISI 316
- body and blind flange gaskets graphite
- 2 keyways in L6F.
LOW EMISSION CONSTRUCTION
- Low emissio graphite packing
- Low emissio blind flange
- Low emissio blind flange bolting gr. 660
- Otherwise as construction "N" or "1N"
STEAM JACKET WITH BEARING PROTECTION
- steam jacket on valve body and graphite bearing protection,
otherwise as construction "BN" or "BU"
OXYGEN CONSTRUCTION
Cleaning acc. FC-QC-0001. See IMO 10O270EN.pdf.
t= -50 °C or -100 °C ...+260 °C, code 1C
t= -200 °C...+260 °C, code 2C
= +600 °C / +1112 °F
max
6. SIZE
L6C: 04, 06, 08, 10, 12, 14, 16, 18, 20, 24, 28, 30, 32, 36, 38, 40, 42
48, 52, 54, 56, 60, 64, 72, 80
L6D: 04, 06, 08, 10, 12, 14, 16, 18, 20, 24, 26, 28, 30, 32, 36, 40,
42, 44, 48, 50, 56
L6F: 06, 08, 10, 12, 14, 16, 18, 20, 24, 28, 30, 32, 36, 40
L4F/D:
04/03, 06/05, 08/06, 10/08, 12/10, 14/10, 16/12, 20/16, 24/20, 28/24
L6F/D:
04/03, 06/05, 08/06, 10/08, 12/10, 14/10, 16/12, 18/14, 20/16, 30/24
7. BODY MATERIALS
A ASTM A 351 gr. CF8M. Standard.
P ASTM A 216 gr. WCB. Standard.
F ASTM A 352 gr. LCC
8. DISC MATERIAL
A ASTM A 351 gr. CF8M / F 316. Standard.
9. SHAFT AND PIN MATERIAL
C Gr. 630 (17-4PH). Standard.
H Nimonic 80A (high temp. above +425 °C / +800 °F)
10. SEAT MATERIAL
Standard
A
Not L6F
Examples:
L6CBN08AACAG = Standard construction with
L6CBN08AACAT = Max. temperature +230 °C
L6CBU28AACAG = Standard construction in bigger
L6CBH10AAHHG = High temperature construction
L6CBC12AACAG = Cryo construction
L6FBN08PACBG = Standard construction with
Incoloy 825, hard chrome plated.
B W.no. 1.4418, hard chrome plated (AVESTA 248 SV ).
F6NM, hard chrome plated (Nace)
D
t= -75 ° to +425 °C / -100° to +800 °F
Nimonic 80A, hard chrome plated, (high temp. above +425 °C /
H
+800 °F).
11. PACKING MATERIAL OPTION
G TA-Luft Graphite packing, Fire-safe.
TA-Luft PTFE packing, gland packing PTFE,
T
t
= +230 °C / +446 °F.
max
12. FLANGE FACING
Ra 3.2 - 6.3, standard, without sign
cover:
-
EN 1092-1 Type B1 (Ra 3.2 - 12.5)
ASME B16.5, Ra 3.2 - 6.3 (125 - 250 μin)
13. FLANGE DRILLING
According to ASME B16.5, without sign (4" - 24").
-
According to ASME B16.47 series A (26" and up).
ASME B16.47 Series B Class 150 & Class 300 (size26" and
B
bigger), not L6F.
metal bearings, stainless
steel body and disc.
Max. temperature +425 °C
sizes, metal bearings, stainless
steel body and disc. Flanges acc.
to ASME B16.47 Series A.
Max. temperature +425 °C
metal bearings, carbon
steel body and stainless steel disc.
Class 600, full rated
34 2 L6 70 en
2 L6 70 en 35
Metso Flow Control Inc.
Europe, Vanha Porvoontie 229, P.O. Box 304, FI-01301 Vantaa, Finland. Tel. +358 20 483 150. Fax +358 20 483 151
North America, 44 Bowditch Drive, P.O. Box 8044, Shrewsbury, M A 01545, USA. Tel. +1 508 852 0200. Fax +1 508 852 8172
South America, Av. Independéncia, 2500-Iporanga, 18087-101, Sorocaba-São Paulo, Brazil. Tel. +55 15 2102 9700. Fax +55 15 2102 9748
Asia Pacic, 238B Thomson Road, #17-01 Novena Square Tower B, Singapore 307685. Tel. +65 6511 1011. Fax +65 6250 0830
China, 11/F, China Youth Plaza, No.19 North Rd of East 3rd Ring Rd, Chaoyang District, Beijing 100020, China. Tel. +86 10 6566 6600. Fax +86 10 6566 2583
Middle East, Roundabout 8, Unit AB-07, P.O. Box 17175, Jebel Ali Freezone, Dubai, United Arab Emirates. Tel. +971 4 883 6974. Fax +971 4 883 6836
www.metso.com/valves
36 2 L6 70 en
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