Metso Jamesbury Wafer-Sphere K830W, Jamesbury Wafer-Sphere K860L, Jamesbury Wafer-Sphere K815W, Jamesbury Wafer-Sphere K815L, Jamesbury Wafer-Sphere K860W Installation Maintenance And Operating Instructions

K815W, K815L, K830W,
K830L, K860W, & K860L
Wafer-Sphere®
Buttery Valve

Installation, Maintenance and
Operating Instructions

IMO-319 EN • 1/2018

2 IMO-319 EN

TABLE OF CONTENTS

1. GENERAL ................................................................... 3

1.1 Description ...................................................................... 3

2. INSTALLATION .......................................................... 4

2.1 Cryogenic Wafer-Sphere Valves................................. 4

2.2 General Information ..................................................... 4

3. MAINTENANCE ......................................................... 4

3.1 General .............................................................................. 4

3.2 Valve Removal ................................................................4

3.3 CTFE Seat Replacement .............................................. 5

3.4 Composite Seat Replacement ..................................5

3.5 Shaft Seal (Packing) Replacement ........................... 6

3.6 Valve Disassembly ......................................................... 6

3.7 Valve Assembly...............................................................6

4. VALVE TESTING PROCEDURE .................................. 7

5. ACTUATOR MOUNTING ............................................ 8

5.1 WARNINGS ....................................................................... 8

5.2 Actuator Mounting Instructions .............................. 8

6. SERVICE / SPARE PART ............................................. 9

IMO 1/18

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!

SERIES K815W 14"– 30"(DN 350-750) VA LVES

ANSI CLASS 150 WAFER DESIGN

SERIES K830W 14"– 24"(DN 350-600) VA LVES

ANSI CLASS 300 WAFER DESIGN

SERIES K860W 3"– 24"(DN 80-600) VA LVES

SERIES K815L 14"– 48"(DN 350-1200) VA LVES

ANSI CLASS 150 SINGLE FLANGE LUGGED DESIGN

SERIES K830L 14"– 36"(DN 350-900) VA LVES

ANSI CLASS 300 SINGLE LUGGED DESIGN

SERIES K860L 3"– 24"(DN 80-600) VA LVES

IMO-319 EN 3

1. GENERAL

This instruction manual contains important information
regarding the installation, operation, and troubleshooting
of the Jamesbury® 14”– 30”(DN 350-750) K815W, 14”–
48”(DN 350-1200) K815L, 14”– 24”(DN 350-600) K830W,
14”– 36”(DN 350-900) K830L, 3”– 24”(DN 80-600) K860W
and K860L Wafer-Sphere Buttery Valves. Please read these
instructions carefully and save them for futher reference.

WARNING

SAFETY FIRST: FOR YOUR SAFETY, TAKE THE FOLLOWING
PRECAUTIONS BEFORE REMOVING THE VALVE FROM THE LINE, OR
BEFORE ANY DISASSEMBLY:

1. WHAT’S IN THE LINE?
BE SURE YOU KNOW WHAT FLUID IS IN THE LINE. IF THERE IS
ANY DOUBT, DOUBLECHECK WITH THE PROPER SUPERVISOR.

2. ARE YOU PROTECTED?
WEAR ANY PROTECTIVE CLOTHING AND EQUIPMENT
NORMALLY REQUIRED TO AVOID INJURY FROM THE
PARTICULAR FLUID IN THE LINE.

3. IS THE LINE DEPRESSURIZED?
DEPRESSURIZE THE LINE AND DRAIN THE SYSTEM FLUID.
THE OFFSET SHAFT IN THE WAFERSPHERE VALVE CREATES
GREATER DISC AREA ON ONE SIDE OF THE SHAFT. THIS
MEANS THAT A WAFERSPHERE VALVE TENDS TO OPEN WHEN
PRESSURIZED ON THE INSERT SIDE WITHOUT AN ACTUATOR
ON THE VALVE. NOTE: DO NOT PRESSURIZE THE VALVE
WITHOUT AN ACTUATOR MOUNTED ON IT. DO NOT REMOVE
AN ACTUATOR FROM A VALVE UNDER PRESSURE.

4. IS THE VALVE CLOSED?
BEFORE YOU INSTALL A WAFERSPHERE VALVE IN, OR REMOVE
IT FROM THE LINE, CYCLE THE VALVE FULLY CLOSED. THE
WAFERSPHERE VALVE MUST BE REMOVED FROM THE LINE
IN THE CLOSED POSITION.THIS WILL PREVENT MECHANICAL
DAMAGE TO THE DISC SEALING EDGE.

WARNING: AT ALL TIMES KEEP HANDS OUT OF THE WATERWAY
OF THE VALVE. A VALVE WITH AN ACTUATOR COULD CLOSE
UNEXPECTEDLY AT ANY TIME AND RESULT IN SERIOUS INJURY.

Figure 1

1.1 Description

The Jamesbury Wafer-Sphere valve is a high performance
buttery valve design. IMPORTANT NOTE: Maximum
shuto pressure rating depends on the materials chosen.
Refer to the nameplate attached to each valve for this rating.
Do not use a valve at service conditions that exceed the
rating of the nameplate.

1. Eccentric Shaft Design. One Wafer-Sphere valve
design feature that is responsible for its superior
performance is the valve’s eccentric shaft design. As
shown by Figure 3, the shaft is oset in two planes: (1)
away from the valve disc center line: and (2) behind the
disc sealing plane. The oset shaft design makes the
disc lift completely o the seat as the valve starts to
open, eliminating wear points at the top and bottom of
the seat. Because the disc rotates in an ec-centric arc, it
operates in one quadrant only.

2. Positive Stop Feature. To prevent seat damage from
over-travel of the disc beyond the closed position
(primarily during eld mounting of a handle or actuator),

Figure 2

Body

Shaft

Sealing Plane

Centerline

Shaft

CL=

Figure 3

a “positive stop” feature has been designed into the
Wafer-Sphere buttery valve. The positive stop feature
also makes it possible to adjust the actu-ator travel stops
in-line. The location of this feature is in the body.

IMO 1/18

4 IMO-319 EN

3. Wafer Body Design. Some Wafer designs contain
ange bolt holes or slots in the body to hold the valve
and assist with correct alignment during installation
in the line. The centering holes or slots in wafer bodies
alone are not suitable or intended for containing line
pressure, and are only for use in conjunction with a
fully bolted pipeline ange.

2. INSTALLATION

2.1 Cryogenic Wafer-Sphere Valves

1. For lowest torque requirements, Wafer-Sphere buttery
valves should be installed with the insert toward the
higher pressure (shaft downstream).

2. To ensure optimum packing performance, cryogenic
Wafer-Sphere buttery valves should be installed with
the shaft extension no greater than 45º from vertical.
Under the operating limits on the valve name-plate,
the shaft extension is structurally capable of
supporting the weight of the actuator in all possible
in-stallation orientations.

WARNING: Do not connect structural supports or
attachments to the shaft extension or actuator. Do not use
the shaft extension for climbing or lifting.

2.2 General Information

1. Read the WARNING section carefully.

2. IMPORTANT: Use ONLY the operating actuator stop

set screws to stop the disc in position. DO NOT use the
“positive stop”by itself to limit actuator travel.

3. Visually check the position of the disc when the valve is
in the closed position and the insert is fully compressed.
There should be 0.010”(.254mm) to 0.040”(1.02mm)
clearance between the disc and the “positive stop” in
the body.

4. Before installing the closed valve in the line, be sure
that the actuator is attached so that a counterclockwise
rotation, viewed from above, opens the valve (See
Figure 3). Again, fully close the valve before in-stalling
it in the line.

5. CAUTION: The Wafer-Sphere buttery valve should
be centered between anges to prevent any damage
to the disc or shaft which will be caused by the disc
striking the pipe wall.

6. Secure the valve between anges using appropriate
gaskets, fasteners, and tightening torque for the
service, in compliance with applicable piping codes
and standards. To compress the ange gaskets evenly,
tighten the ange bolts in an alternating sequence.

7. On some valves, there is insucient space for all the
ange bolt holes to pass through the valve body. For

this reason, threaded holes have been made in the
body. It is recommended that a commercially available
anti-seize lubricant be used in the threaded holes.

8. If there is weepage past the shaft seal upon installation,
it means the valve may have been subject to wide
temperature variations in shipment. Leak tight
performance will be restored by a simple packing
ad-justment described in the MAINTENANCE section.

3. MAINTENANCE

3.1 General

Although Metso’s Jamesbury valves are designed to work
under severe conditions, proper preventative maintenance
can signicantly help to prevent unplanned downtime and
in real terms reduce the total cost of ownership. Metso
recommends inspecting valves at least every ve (5) years.
The inspection and maintenance frequency depends on
the actual application and process condition.

Routine maintenance consists of tightening down the
compression plate periodically to compensate for seal
wear. The valve should be closed during tightening. The
compression plate, however, should not be tightened down
too severely, since this will shorten the life of the seals.
More extensive maintenance such as seat, seal, and bearing
replacement is described below. Numbers in ( ) refer to
items shown in Figures 8 and 9.

3.2 Valve Removal

1. Read the WARNING Section carefully.

2. Valve must be fully closed before sliding it out of the
pipeline.

3. CAUTION: Valves equipped with fail-open (air-to-close)
spring-return actuators must be disconnected from the
actuators and then closed, or there must be sucient
air pressure supplied to the actuator to close the
valve while removing it from the pipeline. After valve
removal, slowly relieve the pressure in the actuator.

Table 1

Insert-Screw Torque Table

Valve Size

ANSI Class

150/300/600

14 (DN 350) 3/8 15/22 FT.-LB. (20/30Nm)

16 (DN 400)(150,300) 3/8 15/22 FT.-LB. (20/30Nm)

16 (DN 400)(600) 1/2 30/44 FT.-LB. (41/60 Nm)

18 (DN 450) 1/2 30/44 FT.-LB. (41/60 Nm)

20 (DN 500) 1/2 30/44 FT.-LB. (41/60 Nm)

24 (DN 600) 1/2 30/44 FT.-LB. (41/60 Nm)

30 (DN 750) 1/2 30/44 FT.-LB. (41/60 Nm)

36 (DN 900) 1/2 30/44 FT.-LB. (41/60 Nm)

42 (DN 1050) 1/2 30/44 FT.-LB. (41/60 Nm)

48 (DN 1200) 1/2 30/44 FT.-LB. (41/60 Nm)

Torque values shown are lower/upper limits.

Screw

Size

(Inch)

Torque Stainless

IMO 1/18

IMO-319 EN 5

3.3 CTFE Seat Replacement

Numbers in ( ) refer to items shown in Figures 8 & 9

1. 1. After removing the valve from the line, place it on a
bench and cycle it open. Take care not to damage the
sealing edge of the valve disc.

2. 2. Remove the insert screws (21) and the insert (2). If
the insert does not lift out easily, tap it out from the
shaft side using a wooden or plastic rod and a hammer.
Don’t strike the valve directly with the hammer.

3. Remove the seat (5) and discard it.

4. Clean the valve.

5. Carefully clean and polish the disc sealing surface. It
should be free of all grooves and scratches.

6. If the disc is slightly damaged it may be possible to
smooth the sealing surface with crocus cloth, a ne
stone, or the equivalent. If deep scratches are present
replace the disc or return the valve to Metso for service.

7. Cycle the valve closed.

8. Install the seat into the insert.

9. Replace the insert and seat together using the insert
screws. Tighten the screws uniformly, torque values are
given in Table 1. Lubricate stainless steel screws when
assembled in stainless steel bodies. Lubricant must be
compatible with media in the pipeline. Open valve and
re-torque the insert screws per Table 1. Take care not
to damage the sealing edge of the disc. Close the valve.

5. Clean the valve and deburr the insert.

6. Carefully clean and polish the disc. It should be free of
all grooves and scratches.

7. If the disc is slightly damaged, it may be possible
to smooth the sealing surface with crocus cloth, a
ne stone, or the equivalent. If deep scratches are
present, replace the disc or return the valve to Metso
Automation for service.

8. Cycle the valve closed.

9. Two graphite gasket style body seals (40) are required.
One is between the body and the seat tail, the other is
between the insert and the seat tail, as shown in Figure
4, p.5. These should be installed in accordance with the
following step.

Disc in level

Insert

Body
Seals

Seat

A

S/

Body

Figure 4

10. Set the actuator stops as described in the appropriate
actuator IMO listed on page 8.

NOTE: After the installation of a new seat, the torque will
be higher for a few cycles. Valve Testing Procedures are
outlined in Section 4.

3.4 Composite Seat Replacement

1. After removing the valve from the pipeline, place it on
a bench and cycle it open.Take care not to damage the
sealing edge of the valve disc.

2. Remove insert screws (21). Using a wooden or plastic rod
and hammer, drive the insert out of the body from the
shaft side. Do not strike the valve directly with a hammer.

3. Remove the seat (5) and discard. Remove the body
seals (40) from the insert and body.

4. Carefully clean the gasketing surfaces with a solvent.
They should be free of all grooves and scratches. If
deep scratches are present, polish or repair as required.

a. IMPORTANT: Exercise care at all times not to

damage these gaskets. A break in the gasket will
cause leakage and should not be used.

b. The bottom surface of the insert must be free of

all foreign particles.Clean thoroughly with suitable
solvent.

c. Apply the gasket to the body taking care to align

the holes in the gasket with the insert screw holes,
for lug style valves.

d. The top body seal must also be aligned with care

to insure the seat tail is covered

10. Verify that the disc is in the level position. Install new
seat, second gasket, and insert. See Figure 4. Install
the insert screws. Lubricate stainless steel insert screws
when assembled in stainless steel bodies. Lubricant
must be compatible with media in the pipeline. Tighten
screws uniformly to the torque values in Table 1.

11. Set the actuator stops as described in Section 5 of
these instructions. Do not install and tighten anges

IMO 1/18

6 IMO-319 EN

on a newly re-seated valve until the actuator stops are
properly set and the valve is fully closed. Incorrect disc
positioning may cause damage to a new seat when the
valve is compressed between anges for the rst time.
NOTE: After installation of a new seat, torque will be
higher for a few cycles.

3.5 Shaft Seal (Packing) Replacement

Numbers in ( ) refer to items shown in Figures 8 & 9

1. Remove the actuator.

2. Remove the indicator pointer (29) from the shaft. Pull it
straight out with a pair of pliers to avoid breaking it o.

3. Remove the nuts (15) and washers (16) from above the
compression plate (10).Remove the compression plate.
The studs (14) do not have to be removed.

4. Remove the compression ring (9) (30”– 48”)DN 750-

1200) Type 815, 14”– 36”(DN 350-900) Type 830, 14”–
24”(DN 350-600) Type 860 only).

5. Remove the old shaft packing (8) with a packing tool.

3. Remove the shaft packing compression hardware
as detailed in steps 1 through 4 in the SHAFT SEAL
REPLACEMENT section. The packing material itself
can be removed more easily after the shaft has been
removed from the valve.

4. Remove the wedge pin welds by grinding or machining
o the weld. Drive out the pins in the opposite
di-rection shown in Figures 8 or 9. Remove the cap
screws (55) and lockwashers (56). Remove the cover
plate (53) and gasket (54). Grind or le o the tack weld
locking the pressure plug. Remove the weld and seals.

5. Use a soft rod and hammer to tap the bottom of the
shaft (4). Remove it through the top of the valve. NOTE:
In doing so, and freeing the disc,be careful not to
scratch the sealing surface of the disc.

6. Remove the packing (8) and the spacer (7).

7. Remove the top bearing (6) through the waterway.

8. Remove the bottom bearing (6) either from the bottom
of the valve or the waterway (also the spacer (43) in
14”– 48”(DN 350-1200) K830W and K830L valves).

6. The spacer (7) need not be removed for shaft packing
replacement.

7. Replace the old packing with new packing. NOTE: If the
packing is of the PTFE chevron type, keep the packing
rings stacked in the same order as removed from the
kit. Note orientation shown in Figure 9.

8. Reinstall the compression ring (9) 30”– 48”(DN 750-

1200) Type K815, 14”– 16”(DN 350-400) Type K830, 14”–
24”(DN 350-600) Type K860 only), the compression
plate (10), the lockwashers (16), nuts (15) and the
indicator pointer (29). Be sure that the indicator plate is
under the pointer.

9. Close the valve (the seat and insert should be installed
in the valve at this point).

10. Tighten the nuts (15) evenly until the packing is
adequately compressed to prevent leakage. This
should require tightening the nuts approximately 1-1/2
to 2 full turns past the “nger-tight” position.

3.6 Valve Disassembly

Numbers in ( ) refer to items shown in Figures 8 & 9

1. Place the valve on a bench or other suitable working
space.

2. If the seat is to be replaced, follow steps 2 and 3 in the
SEAT REPLACEMENT section. NOTE: Replacement of
the seat, shaft packing, body seal, body gasket, and
shaft bearings is recommended whenever the valve is
completely disassembled.

3.7 Valve Assembly

Numbers in ( ) refer to items shown in Figures 8 & 9

1. Clean all valve components.

2. Inspect all components for damage before starting
to assemble the valve. Look especially for damage to
sealing areas on the disc, shaft, and body, and for wear
in the bearing areas of the shaft and body.

3. Carefully clean and polish the disc sealing surface. It
should be free of all grooves and scratches.

4. If the disc is slightly damaged it may be possible to
smooth the sealing surface with crocus cloth, a ne
stone, or the equivalent. If deep scratches are present
replace the disc or return the valve to the factory for
service.

5. Install the bearings (6) into the body bores.

6. Coat the shaft and the disc bore lightly with a lubricant
compatible with the uid to be handled by the valve.

7. Position the disc (3) in the body between the thrust
bearings (64) and slide the shaft (4) through the
body and disc. Use caution to prevent damage to the
bearings. An arrow and the word “bonnet” on the disc
indicates correct orientation.

8. Insert the wedge pins (13) and drive them into place.
The pins must be driven so that all pins are the same
depth within 1/16”(1.6mm). Be certain that the pins
are in-stalled from the direction shown in Figure 8 or

9. Weld both ends of the pins, small end rst. After the

IMO 1/18

IMO-319 EN 7

disc cools, clean the welds with a wire brush. CAUTION:
Use care to keep contamination out of the valve.

9. Install the spacer (7), the packing (8), the compression
ring (9) (30”– 48”(DN 350-1200) Type K815, 14”– 36”(DN
350-900) Type K830, 14”– 24”(DN 360-600) Type K860
only). If the packing is of the PTFE chevron type, be
certain that it is installed in the orientation shown in
Figure 9.

10. If the studs (14) have been removed from the valve,
reinstall them in the holes shown in Figure 8 or 9.

11. Place the compression plate (10) over the shaft (4) and
studs (14). Orient the plate so that the indicator pointer
will be over the indicator plate. Install the lockwashers
(16) and nuts (15), but do not tighten. Install the
indicator pointer in the shaft.

12. On valves with cover plates, install bottom bearing
spacer (43) in 14”– 16”(DN 350-400) 830W and 830L
valves only. Assemble the cover plate (53) and gasket
(54) to the cap screws (55) and lockwashers (56).
Torque the cap screws per Table 3. Place the plug seal
in the recess at the bottom of the valve and install the
plug. Torque the plug until it is ush with the body.
A small (1/16”) tack weld on the corner of the plug is
recommended. CAUTION: A larger tack weld is apt to
have enough heat to damage the seal.

13. Cycle the valve fully closed. If the seat is to be re-placed
as recommended, do so at this point. For details see
seat replacement sections 3.3 and 3.4, as applicable.

valve in the closed position. The oset design of the
valve can cause it to rotate when pressure is applied to
one side of the disc.

3. The valve should be installed between anges or in a
testing apparatus using suitable gaskets. If using anges,
refer to Section 2 step 6. If a testing device other than
anges is used, the clamping force of the device must be
comparable with ange bolt loads on the valve.

4. Cycle the valve slightly open. Verify that you do not
have a seal between the seat and disc. Exercise caution
when cycling a valve in the test apparatus to avoid
possible disc damage from striking the test xture.

5. Cap the downstream vent and apply 100 psig (6.9 bar)
to the valve. Check the shaft seals, pressure plug or
cover plate, and ange gaskets for leakage. This can be
done by applying a liquid mixture of soap and water at
all seal joints and watching for bubbles.

IMPORTANT: If leakage is detected between the valve and
anges STOP IMMEDIATELY. Mark the area of leak-age.
Vent the valve and, when it has returned to 0 psig,
retighten the ange bolts in that area. Repressurize the
valve, checking the whole gasket again. If leakage persists,
disassemble and inspect for damage.

6. If leakage is detected at the shaft seals, tighten only
enough to stop the leak.

7. Vent the valve and, when it has returned to 0 psig, cycle
the valve closed.

14. Install the seat (5), insert (2), and insert screws (21) as
shown in Figure 8 or 9. Torque values are given in Table 1.

15. With the valve still closed, tighten the nuts (15) on
the compression plate evenly until the packing is
adequately compressed to prevent leakage. This
should require tightening the nuts approximately 1-1/2
to 2 full turns past the “nger-tight” position.

4. VALVE TESTING PROCEDURE

Should it become necessary to perform a leak test of the
valve prior to its installation in the pipeline, follow the
procedure outlined below.

NOTE: This valve is intended for cryogenic service. It is
important that you take every precaution to keep moisture
out of the valve. DO NOT test the valve with water. It is
recommended that an inert gas such as nitrogen or helium
be used to perform leak testing of cryogenic valves.

1. In the following test, suitable gaskets or seals are required
between the faces of the valve and the test hardware.

2. Before pressurizing the valve be sure all actuator
linkage fasteners are tight, and that the power or
pressure is applied to the actuator to maintain the

8. Attach a small tube or hose to the downstream ange
(shaft side of valve).

9. Be sure power/pressure is still applied to the actuator.
Pressurize the upstream ange (insert side of valve) to
100 psig (6.9 bar). Check for leakage passing through
the free end of the tube/hose.

10. If leakage is detected, vent the valve and make an
actuator close-stop adjustment as described in the
appropriate IMO listed on page 8.

11. Repressurize the valve and check the leakage. If the
valve still leaks, repeat step 10. If leakage cannot be
stopped, adjust the actuator stop so that leakage is
minimized.

12. Rebuilt valves may have some minor leakage due to
damage to the disc. With the valve still pressurized,
insert the free end of the tube/hose into a beaker of
water and check for bubbles. In the absence of other
test standards, observe leakage after it has reached a
stable condition. Because of the volume of air that must
be exhausted from a cycled valve, it may be necessary
to wait several minutes for the leakage to stabilize or
stop. One bubble per inch of valve diameter per minute
may be considered acceptable for re-built valves.

IMO 1/18

y

8 IMO-319 EN

5. ACTUATOR MOUNTING

1. Place coupling on stem.

5.1 WARNINGS

BEFORE INSTALLING THE VALVE AND ACTUATOR, BE SURE
THAT THE INDICATOR POINTER ON TOP OF THE ACTUATOR
IS CORRECTLY INDICATING THE VALVE’S POSITION. FAILURE
TO ASSEMBLE THESE PRODUCTS TO INDICATE CORRECT
VALVE POSITION COULD RESULT IN PERSONAL INJURY.

CAUTION: WHEN INSTALLING A LINKAGE OR SERVICING
A VALVE/ACTUATOR ASSEMBLY, THE BEST PRACTICE IS
TO REMOVE THE ENTIRE ASSEMBLY FROM SERVICE.

CAUTION: AN ACTUATOR SHOULD BE REMOUNTED ON
THE SAME VALVE FROM WHICH IT WAS REMOVED. THE
ACTUATOR MUST BE READJUSTED FOR PROPER OPEN
AND CLOSE POSITION EACH TIME IT IS REMOUNTED.

CAUTION: THE LINKAGE HAS BEEN DESIGNED TO
SUPPORT THE WEIGHT OF JAMESBURY ACTUATORS AND
RECOMMENDED ACCESSORIES. USE OF THIS LINKAGE
TO SUPPORT ADDITIONAL EQUIPMENT SUCH AS
PEOPLE, LADDERS, ETC. MAY RESULT IN THE FAILURE OF
THE LINKAGE, VALVE OR ACTUATOR, AND MAY CAUSE
PERSONAL INJURY.

5.2 Actuator Mounting Instructions

2. Rotate no-play coupling
so that screw is parallel
with pipeline when
valve is closed.

Figure 6

4. Lower actuator and bracket onto the valve while
engaging actuator stem driver into coupling. Tighten
screws just enough to rmly mate bracket to valve.
This should allow the bracket to slip somewhat to align
itself. See Figure 7.

1

3

4

2

1. When a spring return actuator is being mounted, the
valve should be in the closed position for spring-to-close
operation, or in the open position for the spring-to-open
operation.When an electric or double acting pneumatic
actuator is being mounted, the valve position should
correspond to the actuator indicator call out.

Screw Size

Torque

Inch

1/3 3 (4 Nm)

3/8 10 (14 Nm)

1/2 22 (30 Nm)

5/8 45 (61 Nm)

Torque
ILB.-FT.

Figure 5

2. Assemble bracket to actuator as shown in Figure 5,
torquing screws to the values shown in the table.

3. Place the coupling onto the valve shaft. If the linkage
contains a split, no-play coupling, assemble the
coupling loosely on the valve stem. Use socket head
cap screws and lock nuts. See Figure 6.

Tighten bracketmounting screwsuntil

bracketsitsrml

on valv e

Figure 7

5. Tighten no-play coupling screws, if appropriate, in the
sequence and to the torques shown in Figure 7.

6. Cycle actuator. See actuator IMO’s listed in table at right.

7. Fully torque screws holding bracket to valve to the
torques to 30-lb-ft (41 Nm) for 3/8-inch screws or
75-lbft (102 Nm) for 1/2” screws.

8. Recheck and, if neccessary, adjust no-play coupling
screw torques. See Figure 7.

9. As described in the actuator IMO (see table at right),
adjust the actuator travel stops to the proper valve
open and closed positions.

Valve Open: Disc face perpendicular with the ange

face.

Valve Closed: Disc face parallel to the ange face within

1/32” (.79mm).

IMO 1/18

IMO-319 EN 9

6. SERVICE / SPARE PART

We recommend that valves be directed to our service
centers for maintenance. The service centers are equipped
to provide rapid turn-around at a reasonable cost and oer
new valve warranty with all reconditioned valves.

NOTE: When sending goods to the service center for
repair, do not disassemble them. Clean the valve carefully
and ush the valve internals. Include the material safety
datasheet(s) (MSDS) for all media owing through the
valve. Valves sent to the service center without MSDS
datasheet(s) will not be accepted.

For further information on spare parts and service or
assistance visit our web-site at www.metso.com/valves.

NOTE: When ordering spare parts, always include the
following information:

a. Valve catalog code from identication plate,

b. If the valve is serialized – the serial number (from

identication plate)

c. From Figures 8 or 9, the ballooned part number,

part name and quantity required.

Table 2

Installation, Maintenance & Operating Instructions*

Actuator IMO-

VANE 510

QUADRA-POWR® II 31

QUADRA-POWR® 32

ST60, 90, 115, 175MS 23

ST200/400 26

ST600/1200 24

ST160, 240, 290, 440MS 27

ST1800 506

MANUAL GEAR 63

BC, B1C 71

BJ, B1J 71

VP 35

Table 3

Standard Torque Table

Bolt Size Torque Max/Min (Nm)

1/4” 10/7 FT.-LB. (14/9 Nm)

5/16” 20/14 FT.-LB. (27/19 Nm)

3/8” 33/23 FT.-LB. (45/31 Nm)

7/16” 55/38 FT.-LB. (75/52 Nm)

1/2” 83/56 FT.-LB. (113/76 Nm)

9/16” 121/83 FT.-LB. (164/113 Nm)

5/8” 165/113 FT.-LB. (224/153 Nm)

3/4” 275/188 FT.-LB. (373/255 Nm)

7/8” 413/281 FT.-LB. (560/381 Nm)

1” 638/435 FT.-LB. (865/590 Nm)

IMO 1/18

10 IMO-319 EN

EXPLODED VIEW AND PARTS LIST

15

16

6

44

29

14

16

10

14

8

7

17, 18

1

PARTS LIST

ITEM PART NAME QTY

1 Body S/A 1

2 Insert 1

3 Disc 1

4 Shaft, 32” Ext. 1

5 Cryogenic Seat 1

6 Shaft Bearing 2

7 Flange Bearing 1-5/8” Dia.1

8 Shaft Seal 1

10 Compression Plate 1

11 Pressure Plug 1

13 Wedge PIn 2

14 Stud 2

15 Hex Jam Nut 2

16 Split Lockwasher 2

17 Nameplate 1

18 Drive Screw 2

21 Soc. Cap 3/8-16 X 3/4” long 4

29 Indicator Pointer 1

42 Plug Seal 1

44 Installation Tag 1

53 Bottom Cap 1

54 Gasket 1

55 Bolt 4

56 Lockwasher 4

64 Thrust Bearing 2

54

53

42

64

13

Pininstallationdirectio

n

3

5

2

21

6

64

11

(14-inch (DN 350)only)

56

Disc

Cross-Section

of CTFE

Seat

IMO 1/18

55

Figure 8

15

26,27

16

15
16

75

9

8

7

10

47

16

15
16
14

15

17,18

44

29

4

14

6

10" (DN 250)

and larger K860
valves have a
rectangular bonnet.

Directionofseals

1

64

3

13 5

40

2

12

21

6

42

11

64

40

Disc

Cross-Section

of CompositeSeat

Pininstallation

direction

IMO-319 EN 11

EXPLODED VIEW AND PARTS LIST

PARTS LIST

ITEM PART NAME QTY

1 Body S/A 1

2 Insert 1

3 Disc 1

4 Shaft, 32” Ext. 1

5 Cryogenic Seat 1

6 Shaft Bearing 2

7 Flange Bearing 1-1/8” Dia. 1

8 Shaft Seal 1

9 Compression Plate 1

10 Comp Ring 1

11 Pressure Plug 1

12 Insert PIn 1

13 Wedge PIn 2

14 Stud 2

15 Hex Jam Nut 4

16 Split Lockwasher 4

17 Identication Tag 1

18 Drive Screw 3

21 Soc. Cap. AS REQ’D

26 Indicator Pointer 1

27 Drive Screw 2

29 Indicator Pointer 1

40 Body Seal 2

42 Plug Seal 1

44 Installation Tag 1

47 Retaining Ring 1

64 Thrust Bearing 2

75 Blowout Spacer 1

Figure 9

IMO 1/18

12 IMO-319 EN

Subject to change without prior notice.

Metso Flow Control Inc.

Europe, Vanha Porvoontie 229, P.O. Box 304, FI-01301 Vantaa, Finland. Tel. [phone]. Fax [phone]

North America, 44 Bowditch Drive, P. O. Box 8044, Shrewsbury, M A 01545, USA. Tel. [phone]. Fax [phone]

South America, Av. Independéncia, 2500-Iporanga, 18087-101, Sorocaba-São Paulo, Brazil. Tel. [phone]. Fax [phone]

China, 11/F, China Youth Plaza, No.19 North Rd of East 3rd Ring Rd, Chaoyang District, Beijing 100020, China. Tel. [phone]. Fax [phone]

Middle East, Roundabout 8, Unit AB-07, P. O. Box 17175, Jebel Ali Freezone, Dubai, United Arab Emirates. Tel. [phone]. Fax [phone]

Asia Pacic, 238B Thomson Road, #17-01 Novena Square To wer B, Singapore 307685. Tel. [phone]. Fax [phone]

www.metso.com/valves