Control Valves
Angle Steam Conditioning,
Combination Type
Series AS with Desuperheater for Globe type, Series GS
Installation, Maintenance and Operating Instructions
4 GV 76 en • 6/2016
2 4 GV 76 en
Table of Contents
1 GENERAL...............................................................3
1.1 Scope of the manual ............................................3
1.2 Valve construction ................................................3
1.3 Valve markings .......................................................3
1.4 Technical specifications ......................................3
1.5 Valve seat leakage class .....................................3
1.6 Recycling and disposal ........................................3
1.7 Safety precautions ................................................4
2 TRANSPORTATION, RECEPTION AND
STORAGE...............................................................4
3 VALVE INSTALLATION ........................................4
3.1 General ......................................................................4
3.2 Installation into the pipeline ............................. 4
3.3 Control valve assembly .......................................5
3.4 Valve insulation......................................................5
4 MAINTENANCE .....................................................5
4.1 General ......................................................................5
4.2 Gland packing adjustment.................................5
4.3 Replacing the gland packing ............................ 6
4.4 Replacing the trim and body reassembly.....6
4.5 Pilot Plug...................................................................7
4.6 Spray Nozzle............................................................7
4.7 ‘GS’ Desuperheater ..............................................8
5 TESTING THE VALVE ............................................9
6 REMOVAL & MOUNTING THE ACTUATOR ........10
7 TOOLS .................................................................12
8 ORDERING SPARE PARTS...................................12
9 EXPLODED VIEW AND PARTS LIST....................13
10 DIMENSIONS AND WEIGHTS ............................15
10.1 Actuators VD, VC................................................. 15
11 INSTALLATION GUIDELINES..............................18
11.1 Pipeline cleaning ................................................ 18
11.2 Installation and orientation of the valve.... 18
11.3 Hydrostatic testing and Line flushing......... 18
11.4 Piping upstream ................................................. 18
11.5 Downstream piping........................................... 19
11.6 Spray water pipe ................................................. 20
11.7 Drains...................................................................... 20
11.8 Pre-Heating........................................................... 21
11.9 Temperature sensor ......................................... 21
12 TYPE CODE..........................................................22
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.
SAVE THESE INSTRUCTIONS!
Subject to change without notice.
All trademarks are property of their respective owners.
4 GV 76 en 3
1 GENERAL
1.1 Scope of the manual
This manual provides essential information on series AS:
Angle Steam Conditioning, Combination type valve
installed sliding stem valves. Also, this manual explaining
the GS: Desuperheater for Globe type.
Actuators and positioners are only discussed briefly. Refer
to the individual manuals for further information on their
installation, operation and maintenance.
NOTE:
Selection and use of the valve in a specific application
requires close consideration of detailed 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.
1.2 Valve construction
Series AS, Angle Steam Conditioning, Combination type
valves are flanged (weld end available) single seated sliding
stem control valves.
The valve seat ring and cage and plug with stem is a module accessible through the bonnet opening (top entry) of
the body.
Our standard design provides a cage guide with a piston
type plug with a quick change seat ring. The two split cages
and inserted plug seal ring makes strong support to ensure
valve alignment.
This series is available with series of reduced Cv trims and
the standard seat tightness is class III~IV, optional trims can
meet to class V, ANSI/FCI 70-2.
The detailed structure is revealed by the type code shown
on the valve identification plate. The type code is explained
in Section 11.
1.3 Valve markings
The body markings are: manufacturer's trademark, nominal
size, pressure rating and material of the body. The valve has
an identification plate attached to it, see Fig. 2.
΅ΊͶ
ͳ͵Ί
΄΅Ͷ;
ΥΞΒΩ
΄ͶͲ΅
ͽΆ
ΥΞΚΟ
΅ͲͿΠ
;ͲΉͶ΄΄ΆͶ
Metso Korea Co., Ltd.
Ͳ΅ͺͿ
235 Cheomdansaneo p 1-ro, Daesowon-myeon,
Chungju-si, Chungcheongbuk-do, Korea
ͷͽΆͺ͵Ά
ʹΧ΄ͺͶ
ͿΠ
0496
͵Ͳ΅Ͷ
II 2 GD
Fig. 2 Identification (name) plate example
Markings on the identification plate:
1. Type designation (Valve code)
2. Size, Rating
3. Cv
4. Body material
5. Plug, Stem material
6. Seat material
7. Temp. min./max.
8. Maximum (shut-off) pressure
9. Valve manufacturing date
10. Tag No.
11. Serial No.
1.4 Technical specifications
Face-to-face length: customized dimensions depending on
the customer spec.
Body rating: Class 150 to Class 900
Max. pressure differential:
acc. to pressure class
Temperature range: amb. to +593 °C (depending on the
body materials and bonnet type)
Flow direction: indicated by an arrow on the body
(normally flow to close)
Actuator mounting: threaded bonnet with yoke nut or
bolted yoke
Stem connection: clamp with bolts/nuts
Dimensions: see Section 10
Weights: see Section 10
Note that the max. shut-off pressure is based on the mechan-
ical maximum differential pressure at ambient temperature.
You must always observe the fluid temperature when deciding on applicable pressure values. When selecting a valve
you must also check the noise level, cavitation intensity, flow
velocity, actuator load factor, etc. using Nelprof.
Fig. 1 Construction of the Neles Angle Steam Conditioning
Valve, Series AS
1.5 Valve seat leakage classification
The valve follows the seat leakage classifications of ANSI/
FCI 70-2 requirement.
1.6 Recycling and disposal
Most valve parts can be recycled if sorted according to
material. Most parts have a 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 for a fee.
4 4 GV 76 en
Correct ( 1 2 ) Wrong ( 3 )
Steel
wire robe
Steel robe
1.7 Safety precautions 2 TRANSPORTATION, RECEPTION AND
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 pressurised!
Dismantling or removing a pressurised 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 yourself
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.
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.
STORAGE
CAUTION:
Beware of the plug movement!
Keep fingers, 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 plug functions as a cutting device. Close and detach
the actuator pressure supply pipeline for valve maintenance. Failure to do this may result in damage or personal
injury.
CAUTION:
Protect yourself from noise!
The valve may produce noise in the pipeline. The noise
level depends on the application. It can be measured or
calculated using the Metso Nelprof software. Observe the
relevant working environment regulations in terms of
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.
CAUTION:
When handling the valve or the control valve assembly, take its weight into account!
Never lift the valve or control valve assembly by the positioner, the 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.
Fig. 3 Lifting the valve
NOTE :
*. Only acceptable case-3, when lift and move the valves;
1)up to outlet 6"- 300# body with VD (Diaphragm type)
actuators
2) up to outlet 10"- 300# body with VC (Cylinder type)
actuators
In the above two cases the lifting is limited to max. height
of 1.0 m and max. moving distance of 70 m.
Do not remove the flow port protectors until immediately
before installation of the valve into the pipeline.
The valve is delivered in the closed position. A valve
equipped with a spring-return actuator is delivered in the
position determined by the spring.
3 VALVE INSTALLATION
3.1 General
Remove the flow port protectors and check that the valve is
clean inside.
CAUTION:
When handling the valve or the control valve assembly, take its weight into account!
3.2 Installation into the pipeline
3.2.1 Pipeline cleaning
Make sure no foreign particles, such as sand or pieces of
welding electrode, are in the pipeline, they may damage
the sealing surfaces.
4 GV 76 en 5
Insulation limit
3.2.2 Installation valve
The valve has an arrow indicating the flow direction. Install
the valve in the pipeline so that the flow direction of the
valve corresponds to the flow direction marked on the pipe.
The mounting orientation of the valve should be vertical
position as it shown on Fig.4.
Choose flange gaskets according to the operating conditions.
3.4 Valve insulation
If necessary, the valve may be insulated. Insulation must not
continue above the upper level of the valve body, see Fig. 5.
Fig. 4 Installing the control valve into pipeline using supports
Do not attempt to correct a pipeline misalignment by
means of flange bolting.
Loads on the valve body from pipeline vibrations can be
reduced by supporting the pipeline properly. Reduced
vibration also increases the lifetime of the positioner.
Where necessary, you can support the valve by the body, using
regular pipe clamps and supports. Do not fasten supports to
the valve or flange bolting or to the actuator, see Fig. 4.
3.2.3 Hydrostatic testing and Line flushing
When the line is hydrostatic test and flushing, the control valve
should not used as an isolating valve. Make sure the control
valve always be opened position before start this process.
Otherwise valve and trim damage or failure of the seals could
result.
Flushing and hydrostatic test kit can be purchased from Metso.
CAUTION:
Flushing trim kit should be installed in the valve (especially 'Tendril & Omega trim' application) to protect the
original trim and the flow passages while the valve
installation and line flushing. Unless this caution could
result in clogging trim, low flow rates, unstable control,
valve leakage and exessive noise and other trouble.
Fig. 5 Insulation of the valve
4 MAINTENANCE
CAUTION:
Observe the safety precautions listed in Section 1.7
before starting work!
CAUTION:
When handling the valve or the control valve assembly, take its weight into account!
4.1 General
The Neles series AS, Angle Steam Conditioning valve
require regular maintenance. Check the gland packing for
leakage. This section outlines the maintenance that can be
carried out by the user.
The numbers in parentheses refer to the parts lists and the
exploded views of the valve in Section 9.
NOTE:
If you send the valve to the manufacturer for repair, do not
dismantle it. Clean the valve carefully, including the inside.
For safety reasons, inform the manufacturer of the nature
of the medium when you send the valve.
NOTE:
Always use original spare parts to make sure the valve
functions as intended.
3.3 Control valve assembly
Check all joints, piping and cables.
Check that the actuator stop screws, positioner and limit
switches are calibrated. Refer to their installation, maintenance and operating manuals.
4.2 Gland packing adjustment
In the event of a packing leakage tighten the gland nuts
(18) in ¼ turn steps each until the leakage is stopped. Do
not tighten more than necessary.
6 4 GV 76 en
4.3 Replacing the gland packing
CAUTION:
Do not dismantle the valve or remove it from the pipeline while the valve is pressurised!
Low Emission with
Standard construction
Fig. 6 Gland packing
Make sure the valve is not pressurised.
Remove the actuator from the valve stem according
to the instructions given in the actuator manual.
Loosen and remove the hexagon nuts (18).
Remove the gland flange (9b), and gland (9a) up to
the valve stem.
Remove the old packing rings (69) using a pointed
tool, avoid damaging the seal surfaces and valve stem.
Clean the packing ring counterbore.
Mount the new packing rings one by one into the
packing gland box using the gland as a tool and
mount the gland with hand-tightened nuts.
Fasten the gland with the hexagon nuts (18) and
tighten them.
Check leakage when the valve is pressurised.
Live Load Spring
Table 1 Required torques for bonnet nuts
Valve Size
mm in Size Q`ty
50 2
80 3
100 4
150 6
200 8
250 10
300 12
350 14
400 16
500 20
600 24
Rating
(ANSI)
150-300 1/2"-13UNC 8 101 74 80 59
1500 7/8"-9UNC 8 286 210
150-300 3/4"-10UNC 8 176 129
1500 1-1/8"-8UNC 8 792 581
150-300 7/8"-9UNC 8 222 163
1500 1-1/4"-8UNC 8 1339 982
150-300 1"-8UNC 8 316 232
1500 1-1/2"-8UNC 12 1456 1068
150-300 1-1/4"-8UNC 8 478 351 478 351
1500 1-5/8"-8UNC 12 1870 1372
150-300 1-1/4"-8UNC 12 486 356 486 356
150-300 1-1/2"-8UNC 12 729 535
150-300 1-1/2"-8UNC 12 875 642
150-300 1-1/2"-8UNC 12 1529 1121
150-300 1-3/4"-8UNC 20 1816 1332 1725 1265
150-300 1-3/4"-8UNC 20 1923 1410 2491 1827
Bonnet Stud Bolts
600 1/2"-13UNC 8 158 116 123 90
900 7/8"-9UNC 8 199 146
600 3/4"-10UNC 8 211 155
900 1-1/8"-8UNC 8 558 409
600 7/8"-9UNC 8 327 240
900 1-1/4"-8UNC 8 867 633
600 1"-8UNC 12 327 240
900 1-1/2"-8UNC 12 1192 874
600 1-1/4"-8UNC 12 653 479 653 479
900 1-5/8"-8UNC 12 1676 1229
600 1-1/4"-8UNC 16 909 667
900 1-3/4"-8UNC 12 2059 1510
900 1-1/2"-8UNC 16 1408 1032
900 1-1/2"-8UNC 16 1689 1238
600 1-1/2"-8UNC 16 1426 1046
600 1-3/4"-8UNC 24 2107 1545 2001 1468
600 1-3/4"-8UNC 24 2216 1625 2105 1544
Required Torques
(± 5 % allowable)
Carbon Steel
Bolts
Nm lbf ft Nm lbf ft
St. Steel Bolts
199 146
136 100
160 118
291 214
942 691
1140 836
716 525
729 535600 1-1/2"-8UNC 12 1317 966
875 642600 1-1/2"-8UNC 12 1581 1160
980 719
Remove the bonnet (8)
Remove the cage guide (16), cage (15) and the seal
ring (64). Avoid from damaging the seal ring
between the cage and cage guide.
Remove the body gasket (65 & 65a), one piece of
seat ring (7) and diffuser (81), seat gasket (63).
NOTE:
The standard is ‘quick change seat type’, other design has
a ‘weld seat type’ according to weld seat ring on the body
side.
Fig. 7 Tightening sequence of the bonnet nuts
4.4 Replacing the trim and body reassembly
NOTE:
The trim set consists of the seat ring, valve plug and stem,
retainer and gaskets(for seat ring and bonnet).
Make sure the valve is not pressurised.
Remove the actuator from the valve stem according
to the instructions given in the actuator manual and
next Section 6.
Remove the hexagon nuts (18) slightly.
Remove the hexagon nuts (17).
NOTE:
The standard is one piece with seat ring (7) and the
diffuser (81) by welded, other design has a separated type
according to weld diffuser on the body side.
Remove the hexagon nuts (18), gland flange (9b)
and gland (9a).
Remove the old packing rings (69).
NOTE:
If the valve have excess leakage, the plug and seating
surface need lapping and cleaning.
NOTE:
‘Omega’ Disk Stack Cage Cleaning
The welded ‘Omega’ disk stack cage is not available
disassembling, make sure the ultrasonic cleaning in the
frequency range of 250 ~ 400 kHz and Min. duration
60 min.
4 GV 76 en 7
Clean the body gasket surface.
Insert a new seat gasket (63) and the seat ring (7) &
diffuser (81) kit into the body.
CAUTION:
Do not reuse the spiral wound gaskets (63 & 65 & 65a),
this is need to be replace each time the valve is disassembled.
Install the cage (15), seal ring (64), cage guide (16)
and plug stem assembly (3, 5, 6) very carefully.
Insert the body gasket (65 & 65a).
Mount the bonnet on the body carefully maintaining
alignment with the plug and the stem and with the
retainer (or cage) in the closed position, so that the
bonnet position in relation to the body is the same
as the original position.
Insert the hexagon nuts (17) into stud (13) and
slightly fasten the nuts.
CAUTION:
Do not strongly tighten stud nuts at this time
Insert the packing rings (69) according to above 4.3
CAUTION:
The all related parts (seat ring, retainer, cage, plug &
stem, bonnet) must be properly aligned in the body.
Tighten hexagon nuts (17) until plug and seat con-
tact is obtained with proper bolt torque.
Fig. 9 Pilot Omega-balanced trim
4.5 Pilot Plug
Disassembly & Assembly
Mount the plug and stem assembly on the chuck to
setting.
Remove the pilot wire (76).
Remove the pilot bolts (75).
CAUTION:
Make sure to balance when loose the pilot bolts, and
be careful the spring tension to bounced off the pilot
plug and stem.
Remove the pilot cover (74).
Remove the pilot plug (73) and pilot stem (72) from
pilot main plug (71).
Remove the pilot spring (77) carefully.
Remove the pilot plug (73) and the pilot seat as well
as the surface inside of the pilot main plug (71). If
there is damage, scratches or grooves, it should be
replaced or repaired.
Insert the cleaned pilot spring (77) into the upper
side of main plug.
Install the pilot plug (73) & pilot stem (72) on the
spring (77).
Install the pilot cover (74) and fasten the pilot bolts
(75) keep in balance.
Install wire (76) for connecting the all pilot bolts due
to prevent loose on operation.
Fig. 8 Omega quick change, Standard balanced trim
4.6 Spray Nozzle
Disassembly & Assembly
Remove the (Spray to Spray) hexagon nuts (87a).
Remove the spray cover (84).
Remove the spray gasket (86).
8 4 GV 76 en
Remove the old packing rings (85) using a pointed
tool, avoid damaging the seal surfaces and spray
retainer.
Remove the spray retainer (88) sub-assembly using
by the one of stud (87) carefully.
Grind welded point between the spray nozzle sub-
assembly (detail ‘a’, 89a~d) and the spray retainer (88).
Remove the spray nozzle sub-assembly (detail ‘a’,
89a~d) from the spray retainer (88) and replace them
by new one.
CAUTION:
Do not reuse the spray nozzle sub-assembly (detail ‘a’,
89a~d), this is need to be replace each time the valve is
disassembled.
Re-weld one point the spray nozzle sub-assembly
(detail ‘a’, 89a~d) and the spray retainer (88).
Clean the body gasket surface.
Install the new or repaired spray retainer (88) sub-
assembly using by the one of stud (87) carefully.
Mount the new packing rings (85) one by one into
the packing gland box using the gland as a tool.
Insert a new spray gasket (86) into the spray retainer
(88).
CAUTION:
Do not reuse the spiral wound gasket (86), this is need
to be replace each time the valve is disassembled.
Install the spray cover (84).
Tighten hexagon nuts (87a).
Fig. 10 Integral Spring loaded injection type spray nozzle
4.7 ‘GS’ Desuperheater
Disassembly & Assembly
Remove the (housing) hexagon nuts (96a).
Remove the housing bonnet (95) sub-assembly care-
fully.
Remove the flange gasket (97).
Grind welded point between the spray nozzle sub-
assembly (detail ‘a’, 89a~d) and the spray nozzle (89).
Remove the spray nozzle sub-assembly (detail ‘a’,
89a~d) from the spray nozzle (89) and replace them
by new one.
Fig. 11 Globe PCV + Desuperheater type
4 GV 76 en 9
Omega quick change, Standard balanced trim Omega quick change, Pilot balanced trim
Tendril multi-stage
Tendril multi-stage Pilot balanced trim
Fig. 12 Different trim designs
CAUTION:
Do not reuse the spray nozzle sub-assembly (detail ‘a’,
89a~d), this is need to be replace each time the valve is
disassembled.
Re-weld one point the spray nozzle sub-assembly
(detail ‘a’, 89a~d) and the spray nozzle (89).
Clean the flange gasket surface.
Insert the spray gasket (86).
CAUTION:
Do not reuse the spiral wound gasket (86), this is need
to be replace each time the valve is disassembled.
Install the new or repaired spray nozzle (89) sub-
assembly carefully.
CAUTION:
Make sure same direction to be cooperate the lines
with the flange of desuperheater housing (80) and
housing bonnet (95) for avoid miss arrangement of
spray nozzle direction (see Detail ‘b’ of fig. 11).
5 TESTING THE VALVE
CAUTION:
Pressure testing should be carried out using equipment conforming to the correct pressure class!
We recommend that the valve body is pressure-tested after
the valve has been assembled.
The pressure test should be carried out in accordance with
an applicable standard for the pressure rating. The valve
must be in the open position during the test.
Tighten hexagon nuts (96a).
10 4 GV 76 en
Direct Action actuator
(Air to Close, stem extend)
Reverse Action actuator
(Air to Open, stem retract)
VD Actuator part
1. YOKE 10. LOWER CASE 18 TOP STEM 20. UPPER CASE
21. LIFTING EYE NUT 22. WASHER 23. HEXAGON SCREW 24. HEXAGON SCREW
25. HEXAGON NUT 30. IDENTIFICATION PLATE 32. INDICATOR 32a. ROUND HEAD SCRREW
34. VENT CAP 99. AIR SUPPLY PORT
V-A (Valve-Actuator) Mounting Part (**)
1** CLAMP 1a**SOCKET HEAD SCREW
1b** HEXAGON NUT 3**YOKE NUT (see above VD g.)
5** STEM LOCK NUT 6** LOCK WASHER
6 REMOVAL & MOUNTING THE
ACTUATOR
The actuator is attached to the valve according to the manual
for actuator with body assembly and plug stem adjustment.
Several types of Metso actuators can be used with suitable
clamps. Refer to the model VD spring-diaphragm and VC
double acting cylinder actuator manuals for further information on their installation, maintenance and operation.
CAUTION:
Beware of the plug movement!
Do not use air pressure higher than what specified on the
identification plate.
A. Actuator removal for VD Reverse<air to open, stem
retract> actuator (Fig. 13)
Lift up to the valve plug 100% from the seat ring,
using by specified air pressure.
Loosen the stem lock nut (5**) and socket head
screws (1a**) and hexagon nuts (1b**).
Remove the clamp (1**).
Shut off and disconnect air supply line.
Support actuator with the suitable lifting device.
Remove the yoke nut (3**).
Remove the actuator from the valve body assembly.
B. Actuator replacement (mounting) for VD Reverse<air
to open, stem retract> actuator (Fig. 13)
Mount the new or repaired actuator on top of the
bonnet, using a suitable lifting device.
Insert the yoke nut and tightly fasten the yoke by
turning the yoke nut clockwise using tightening
tools.
Connect air line and accessories.
Lift the top stem (18), using by specified air pressure.
Adjustment stem length after clamping the
clamp (1**) according to rated travel(stroke) as
‘open’ and ‘close’ position as per pressurizing and
depressurizing the lower diaphragm chamber.
Tighten stem socket head screws (1a**) and hexa-
gon nuts (1b**) with stem lock nut (5**).
C. Actuator removal for VD Direct<air to close, stem
extend> actuator (Fig. 13)
Shut off and disconnect the air supply lines and
accessories.
Loosen stem lock nut (5**) and stem socket head
screws (1a**) and hexagon nuts (1b**).
Remove the clamp (1**).
Support actuator with the suitable lifting device.
Remove the yoke nut (3**).
Remove the actuator from the valve body assembly.
Fig. 13 VD Actuator
4 GV 76 en 11
VC, without volume chamber
VC, with volume chamber
VC Actuator part
1. YOKE 1A. HEXAGON SCREW 1B. WASHER 18 TOP STEM
21. LIFTING EYE NUT 30. IDENTIFICATION PLATE 30A. RIVET 32. INDICATOR
32A. ROUND HEAD SCRREW 60. TOP COVER 61. BOTTOM COVER 66A. TIE ROD
66C. HEXAGON SCREW 66D. WASHER
V-A (Valve-Actuator) Mounting Part (**)
1b** HEXAGON NUT 5** STEM LOCK NUT
6** LOCK WASHER 26** CLAMP
26a**SOCKET HEAD SCREW 26b** INDICATOR ARROW
D. Actuator replacement (mounting) for VD Direct<air
to close, stem extend> actuator (Fig. 13)
Mount the new or repaired actuator on top of the
bonnet, using a suitable lifting device to setting.
Insert the yoke nut and tightly fasten the yoke by
turning the yoke nut clockwise using tightening
tools.
Connect air line and accessories.
Down the top stem (18), using by specified air pres-
sure.
Adjust stem length after clamping the clamp (1**)
according to rated travel (stroke) as ‘open’ and ‘close’
position as per pressurizing and depressurizing the
upper diaphragm chamber.
Tighten stem socket head screws (1a**) and hexa-
gon nuts (1b**) with stem lock nut (5**).
E. Actuator removal for VC actuator (Fig. 14)
Shut off and disconnect the air supply lines and
accessories.
Loosen the plug stem locknut and the 4 socket head
screws (26a) on the clamp (26).
Remove the clamp (26).
Support the actuator with the suitable lifting device.
Remove the hexagon screws from the valve bonnet.
Remove the actuator from the valve body assembly.
F. Actuator replacement (mounting)for VC actuator
(Fig. 14)
Mount the new or repaired actuator on top of the
valve bonnet, using a suitable lifting device.
Insert the hexagon screws and tightly fasten the
yoke by turning the hexagon screws clockwise using
tightening tools.
Connect air line with actuator.
Down the top stem (18), by using specified air
pressure.
Adjust stem length after clamping the clamp (26)
according to rated travel (stroke) as ‘open’ and ‘close’
position as per pressurizing and depressurizing the
both side of cylinder chambers.
Tighten the 4 socket head screws (26a) on the clamp
(26) and the lower stem locknut.
CAUTION:
Avoid to turn the valve plug and stem when plug is on
seat ring to prevent the seating line from being damaged.
Fig. 14 VC Actuator
12 4 GV 76 en
7TOOLS
Removal of the actuator
L- wrench set(mm)
hex socket wrench set
chisel and hammer(10 pound)
+,- drivers
8 ORDERING SPARE PARTS
NOTE:
Always use original spare parts to make sure that the valve
functions as intended.
When ordering spare parts, always include the following
information:
type code, sales order number, serial number
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.
4 GV 76 en 13
9 EXPLODED VIEW AND PARTS LIST
Series AS
**
65
65a
5
6
3
16
64
25
3
18
14
9b
9a
69
21
69
67
17
13
8
7
81
63
1
82
80
83
89a
89c
89d
86
88
85
84
87
87a
89b
89e
83
Item Description Recommended spare part
1 BODY
2* PLUG SET
3* PLUG
5* STEM
6* PLUG PIN
3** YOKE NUT
7 SEAT RING
8 BONNET
9a GLAND
9b GLAND FLANGE
12 DISK SPRING ASSY
13 STUD
14 STUD
16 CAGE GUIDE
17 HEXAGON NUT
18 HEXAGON NUT
19 IDENTIFICATION PLATE
19a RIVET
21 LANTERN RING
25 DISK STACK
63 SEAT GASKET X
64 SEAL RING X
65 BODY GASKET X
65a BODY GASKET X
67 PACKING SPACER
69 PACKING RING X
71 PILOT MAIN PLUG
Live Load Application
89d
89c
91
89e
89b
89a
90
91
92
PILOT PLUG
Item Description Recommended spare part
72 PILOT STEM
73 PILOT PLUG
74 PILOT COVER
75 PILOT BOLT
76 PILOT WIRE
77 PILOT SRPING
80 DESUPERHEATER HOUSING
81 DIFFUSER
82 LINER
83 SPRAY BODY
84 SPRAY COVER
85 PACKING RING X
86 SPRAY GASKET X
87 STUD
87a HEXAGON NUT
88 SPRAY RETAINER
89a NOZZLE PLUG
89b NOZZLE SEAT
89c NOZZLE SPRING
89d LOCK NUT
89e SPRING SEAT
90 PIPE SOCKET
91 SPRAY PIPE
92 SPRAY TEE
*) Delivered as a set
**) V-A Mounting Parts
14 4 GV 76 en
96a
96
95
97
89
89d
89c
89a
89b
80
Series GS
Item Description Recommended spare part
80 DESUPERHEATER HOUSING
89 SPRAY NOZZLE
89a NOZZLE PLUG
89b NOZZLE SEAT
89c NOZZLE SPRING
89d LOCK NUT
95 HOUSING BONNET
96 STUD
96a HEXAGON NUT
97 FLANGE GASKET X
4 GV 76 en 15
VDD Direct Action
VDR Reverse Action
Bd
A2
Br
A2
C2
C2
E
r
Ed
D
FRONT RIGHT FRONT RIGHT
10 DIMENSIONS AND WEIGHTS
10.1 Actuators VD, VC
Size A2 Bd Br D Ed Er C2 Weight (kg)
#25 255 348 373 NPT 1/4 149 124 225 12
#29 295 391 416 NPT 1/4 174 129 251 18
#37 375 464 489 NPT 1/4 184 128 284 28
#48 486 652 677 NPT 1/4 250 165 381 86
#55 566 695 720 NPT 1/4 260 156 381 112
NOTE
1. "Br" refers to reverse acting actuator, VDR
2. "Bd" refers to direct acting actuator, VDD
Without handwheel
(UNIT: mm)
VDR Reverse Action
A2
C2
A3
hr
B
Bd
VDD Direct Action
D
A2
C2
FRONT FRONT RIGHT RIGHT
A3
r
B
d
h
B
Size A2 Bd Br D A3 B hd B hr C2 Weight (kg)
#25 255 348 373 NPT 1/4 312 110 170 225 22
#29 295 391 416 NPT 1/4 312 122 182 251 28
#37 375 464 489 NPT 1/4 342 141 201 284 43
#48 486 652 677 NPT 1/4 464 144 244 381 119
#55 566 695 720 NPT 1/4 464 144 244 381 145
NOTE
1. "Br" refers to reverse acting actuator, VDR
2. "Bd" refers to direct acting actuator, VDD
With handw heel
(UNIT: mm)
16 4 GV 76 en
Size # 30
Stroke A
40 145
50 145
60 145
70 145
80 145
90 145
100 145
120 145
Size # 60
Stroke A
100 145
120 145
140 145
180 145
240 145
B1
B2 D2 A B
640
760 305
650
790 335
660
820 365
670
850 395
680
880 425
690
910 455
700
940 485
720
1000 545
B1
B2 D2 A B
954
1199 509
974
1259 569
994
1319 629
1034
1349 749
1094
1619 929
D1
ØC
185
Ø370
195
Ø370
205
Ø370
215
Ø370
225
Ø370
235
Ø370
245
Ø370
265
Ø370
D1
ØC
264
Ø660
640 PT 1/2 255 344
284
Ø660
640 PT 1/2 262 355
304
Ø660
640 PT 1/2 269 365
344
Ø660
640 PT 1/2 283 386
404
Ø660
640 PT 1/2 303 417
E F
420 PT 1/2 92 115
420 PT 1/2 94 118
420 PT 1/2 97 121
420 PT 1/2 100 124
420 PT 1/2 103 127
420 PT 1/2 106 130
420 PT 1/2 108 133
420 PT 1/2 114 139
E F
(UNIT: mm)
Weig ht (kg)
(UNIT: mm)
Weig ht ( kg)
Size # 40
Stroke A
40 145
50 145
60 145
70 145
80 145
90 145
100 145
120 145
140 145
180 145
Size # 70
Stroke A
100 145
120 145
140 145
180 145
240 145
(UNIT: mm)
B1
B2 D2 A B
810
935 330
820
965 360
830
995 390
840
1025 420
850
1055 450
860
1085 480
870
1115 510
890
1175 570
910
1235 630
950
1355 750
B1
B2 D2 A B
955
1203 510
975
1263 570
995
1323 630
1035
1443 750
1095
1623 930
D1
ØC
205
Ø460
215
Ø460
225
Ø460
235
Ø460
245
Ø460
255
Ø460
265
Ø460
285
Ø460
305
Ø460
345
Ø460
D1
ØC
265
Ø710
640 PT 3/4 322 438
285
Ø710
640
305
Ø710
640
345
Ø710
640
405
Ø710
640 PT 3/4 377 518
PT 3/4
PT 3/4
PT 3/4
Weig ht (kg)
(UNIT: mm)
Weig ht (k g)
330 450
338 461
354 484
E F
560 PT 1/2 120 148
560 PT 1/2 123 152
560 PT 1/2 126 155
560 PT 1/2 128 159
560 PT 1/2 131 162
560 PT 1/2 134 166
560 PT 1/2 137 170
560 PT 1/2 142 177
560 PT 1/2 148 184
560 PT 1/2 159 198
E F
Size # 50
Stroke A
40 145
50 145
60 145
70 145
80 145
90 145
100 145
120 145
140 145
180 145
Size # 80
Stroke A
100 145
120 145
140 145
180 145
240 145
280 145
(UNIT: mm)
B1
B2 D2 A B
810
935 330
820
965 360
830
995 390
840
1025 420
850
1055 450
860
1085 480
870
1115 510
890
1175 570
910
1235 630
950
1355 750
B1
B2 D2 A B
954
1207 509
974
1267 569
997
1327 629
1034
1447 749
1094
1627 929
1134
1747 1049
ØC
Ø560
Ø560
Ø560
Ø560
Ø560
Ø560
Ø560
Ø560
Ø560
Ø560
ØC
Ø820
Ø820
Ø820
Ø820
Ø820
Ø820
D1
E F
205
560 PT 1/2 186 234
215
560 PT 1/2 189 237
225
560 PT 1/2 192 242
235
560 PT 1/2 195 246
245
560 PT 1/2 198 251
255
560 PT 1/2 201 256
265
560 PT 1/2 203 261
285
560 PT 1/2 209 270
305
560 PT 1/2 215 279
345
560 PT 1/2 227 298
D1
264
640 PT 3/4 378 519
284
640 PT 3/4 386 531
304
640 PT 3/4 394 543
344
640 PT 3/4 410 567
404
640 PT 3/4 435 604
444
640 PT 3/4 451 628
E F
Weig ht (kg )
Weig ht (kg )
(UNIT: mm)
4 GV 76 en 17
Size # 30
Stroke A
40 145
50 145
60 145
70 145
80 145
90 145
100 145
120 145
Size # 60
Stroke A
100 145
120 145
140 145
180 145
240 145
(UNIT: mm)
B1
B2 D2 A B
930
1055 305
940
1085 335
950
1115 365
960
1145 395
970
1175 425
980
1205 455
990
1235 485
1010
1295 545
1239
1484 509
1259
1544 569
1279
1604 629
1319
1724 749
1379
1904 929
D1
ØC
Ø370
Ø370
Ø370
Ø370
Ø370
Ø370
Ø370
Ø370
B1
ØC
B2 D2 A B
Ø660
Ø660
Ø660
Ø660
Ø660
E F G
185
410 470 PT 1/2 134 157
195
410 470 PT 1/2 137 160
205
410 470 PT 1/2 139 163
215
410 470 PT 1/2 142 167
225
410 470 PT 1/2 144 170
235
410 470 PT 1/2 147 173
245
410 470 PT 1/2 150 176
265
410 470 PT 1/2 155 183
D1
E F D
264
925 696 PT 1/2 315 404
284
925 696 PT 1/2 322 415
304
925 696 PT 1/2 329 425
344
925 696 PT 1/2 343 446
404
925 696 PT 1/2 363 477
Weig ht
( kg)
(UNIT: mm)
Weig ht
(kg)
Size # 40
Stroke A
40 145
50 145
60 145
70 145
80 145
90 145
100 145
120 145
140 145
180 145
Size # 70
Stroke A
100 145
120 145
140 145
180 145
240 145
(UNIT: mm)
B1
D1
ØC
B2 D2 A B
1095
Ø460
1220 330
1105
Ø460
1250 360
1115
Ø460
1280 390
1125
Ø460
1310 420
1135
Ø460
1340 450
1145
Ø460
1370 480
1155
Ø460
1400 510
1175
Ø460
1460 570
1195
Ø460
1520 630
1235
Ø460
1640 750
B1
ØC
B2 D2 A B
1240
Ø710
1488 510
1260
Ø710
1548 570
1280
Ø710
1608 630
1320
Ø710
1728 750
1380
Ø710
1908 930
E F G
205
845 616 PT 1/2 180 208
215
845 616 PT 1/2 183 212
225
845 616 PT 1/2 186 215
235
845 616 PT 1/2 188 219
245
845 616 PT 1/2 191 222
255
845 616 PT 1/2 194 226
265
845 616 PT 1/2 197 230
285
845 616 PT 1/2 202 237
305
845 616 PT 1/2 208 244
345
845 616 PT 1/2 219 258
D1
E F D
265
925 696 PT 3/4 368 502
285
925 696 PT 3/4 376 514
305
925 696 PT 3/4 384 525
345
925 696 PT 3/4 400 548
405
925 696 PT 3/4 423 582
Weig ht
(kg)
(UNIT: mm)
Weig ht
(kg)
Size # 50
Stroke A
40 145
50 145
60 145
70 145
80 145
90 145
100 145
120 145
140 145
180 145
Size # 80
Stroke A
100 145
120 145
140 145
180 145
240 145
280 145
(UNIT: mm)
B1
B2 D2 A B
1095
1220 330
1105
1250 360
1115
1280 390
1125
1310 420
1135
1340 450
1145
1370 480
1155
1400 510
1175
1460 570
1195
1520 630
1235
1640 750
B1
B2 D2 A B
1289
1542 509
1309
1602 569
1329
1662 629
1369
1782 749
1429
1962 929
1469
2082 1049
ØC
Ø560
Ø560
Ø560
Ø560
Ø560
Ø560
Ø560
Ø560
Ø560
Ø560
ØC
Ø820
Ø820
Ø820
Ø820
Ø820
Ø820
D1
EF G
205
845 616 PT 1/2 246 294
215
845 616 PT 1/2 249 299
225
845 616 PT 1/2 252 303
235
845 616 PT 1/2 255 308
245
845 616 PT 1/2 258 313
255
845 616 PT 1/2 261 318
265
845 616 PT 1/2 263 322
285
845 616 PT 1/2 269 332
305
845 616 PT 1/2 275 341
345
845 616 PT 1/2 287 360
D1
E F D
264
975 696 PT 3/4 438 579
284
975 696 PT 3/4 446 591
304
975 696 PT 3/4 454 603
344
975 696 PT 3/4 470 627
404
975 696 PT 3/4 495 664
444
975 696 PT 3/4 511 688
Weig ht
(kg)
(UNIT: mm)
Weig ht
(kg)
18 4 GV 76 en
5xDN (min 2- 5 m)
S lo
pe m
in 0. 5%
11 INSTALLATION GUIDELINES
11.1 Pipeline cleaning
Make sure no foreign particles, such as sand or pieces of
welding electrode, are in the pipeline, they may damage
the sealing surfaces.
11.2 Installation and orientation of the valve
The valve has an arrow indicating the flow direction. Install
the valve in the pipeline so that the flow direction of the
valve corresponds to the flow direction marked on the pipe.
The mounting orientation of the valve should be vertical as
it shown on Fig. 4.
Choose flange gaskets according to the operating conditions. Do not attempt to correct a pipeline misalignment by
means of flange bolting. Loads on the valve body from
pipeline vibrations can be reduced by supporting the pipeline properly. Reduced vibration also increases the lifetime
of the positioner. Where necessary, you can support the
valve by the body, using regular pipe clamps and supports.
Do not fasten supports to the valve or flange bolting or to
the actuator, see Fig. 4.
11.3 Hydrostatic testing and Line flushing
When the line is hydrostatic test and flushing, the control
valve should not used as an isolating valve. Make sure the
control valve always be opened position before start this
process. Otherwise valve and trim damage or failure of the
seals could result. Flushing and hydrostatic test kit can be
purchased from Metso.
CAUTION:
Flushing trim kit should be installed in the valve (especially 'Tendril & Omega trim' application) to protect the
original trim and the flow passages while the valve
installation and line flushing. Unless this caution could
result in clogging trim, low flow rates, unstable control,
valve leakage and exessive noise and other trouble.
11.4 Piping upstream
Upstream piping just before the AS valve must be straight
and have no other components. T-piece junctions must also
be avoided.
Metso’s guideline for the straight length of upstream piping
is minimum 5 times to the nominal diameter of piping or a
minimum of 2 meters.
If multiple components are located upstream the AS valve
the distance must be increased to achieve uniform flow
profile before the AS valve.
It is necessary to keep water out of the system (see drains)
in order to avoid vibration, mechanical damages and
ensure reliable temperature measurement.
Metso´s guide value for a slope against the flow is 1:200 as
minimum. The drain must be provided at the lowest point
of piping.
4 GV 76 en 19
11.5 Downstream piping
It is necessary to have straight piping downstream of the
valve because sprayed water needs some distance to evaporate and for example bends will separate water from
steam and hence prevent optimum evaporation.
Metso´s guideline for straight downstream piping is about10
times the nominal diameter and a minimum of 2-5 m.
In downstream piping it is also necessary to keep water
away from piping (see drains).
Metso´s guide value for a slope with the flow is minimum
1:200.
A drain should be provided a the lowest point.
10×DN (min 2 - 5 m)
Slope min 0.5 %
10×DN (min 2 - 5 m)
Slope min 0.5 %
20 4 GV 76 en
11.6 Spray water pipe
Reliable operation of steam condition requires a proper
installation between the AS valve and the spray water control valve. Spray water piping must ensure continuous and
immediate supply of water and it should not get empty.
The piping coming from the spray water control
valve to the AS valve shall be arranged below the
level of the spray pipe.
The distance between the spray water control valve
and the spray pipe should be minimized to less than
5 meters.
11.7 Drains
Condensate or non evaporated spray water in the valve or
steam piping is very risky, it can cause erosion in piping and
the valve, it causes vibration and water hammer and it can
disturb temperature measurement causing problems in
control.
Upstream drains are necessary to protect the AS valve. The
drain connections shall be at the lowest point and nearest
to the AS valve. Slopes shall be always arranged so that
water flows towards the drain.
Metso´s guideline value for a standard drain connection
upstream is a G ½” pipe thread.
4 GV 76 en 21
It is necessary to protect the downstream piping system.
The connection has to be at lowest point after the valve.
Metso´s guideline value for a standard drain connection
in downstream piping is to size it for ~10% of the maximum
spray water amount. The location of the drain shall be 2/3
of the distance to the temperature sensors. The drain
between AS valve and the temperature sensor is mandatory.
11.8 Pre-Heating
Pre-Heating lines prevent the formation of condensate and
reduce the risk of thermal stress. Especially in cases where
the AS valve is closed in normal conditions (e.g. Bypass
Valves) preheating has to be arranged.
11.9 Temperature sensor
The temperature sensors are fitted downstream in the
straight piping at least 10xDN after the valve (min. 5m) and
in case of horizontal piping ~30° rotated of the vertical piping.
22 4 GV 76 en
12 TYPE CODE
Angle Steam Conditioning, Combination Type, Series AS
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22.
AS JL H Q E DK G P2 X VH S1 D1 X S F F H H X A L FG
1. VALVE SERIES
AS Angle Steam conditioning, Combination type
2. BODY SIZE ( INLET X OULET )
2a INLET SIZE 2b OUTLET SIZE
E 2"/DN 50 E 2"/DN 50
G 3"/DN 80 G 3"/DN 80
H 4"/DN 100 H 4"/DN 100
J 6"/DN 150 J 6"/DN 150
K 8"/DN 200 K 8"/DN 200
L 10"/DN 250 L 10"/DN 250
M 12"/DN 300 M 12"/DN 300
N 14"/DN 350 N 14"/DN 350
P 16"/DN 400 P 16"/DN 400
Q 18"/DN 450 Q 18"/DN 450
R 20"/DN 500 R 20"/DN 500
S 24"/DN 600 S 24"/DN 600
T 28"/DN 700 T 28"/DN 700
U 32"/DN 800 U 32"/DN 800
V 36"/DN 900 V 36"/DN 900
Y Special Y Special
3. PRESSURE RATING
C ASME Class 150 D ASME Class 300
F ASME Class 600 G ASME Class 900
H ASME Class 1500 I ASME Class 2500
A ASME Class 4500 Y Special
4. END CONNECTION
W Flanged RF, ASME B16.5
Q Butt welding, ASME B16.25
Z Ring joint flange, ASME B16.5
Y Special
5. BONNET CONSTRUCTION
E Extension
Y Special
6. BODY & BONNET MATERIAL
BX A182 gr. F11 CH A182 gr. F22
DK A182 gr. F91 YY Special
7. SPRAY NOZZLE CONSTRUCTION
F 2-Spray nozzle Cv 2 G 2-Spray nozzle Cv 3
H 2-Spray nozzle Cv 6 J 2-Spray nozzle Cv 10
K 2-Spray nozzle Cv 16 Y Special
8. PLUG MATERIAL
DK A182 gr. F91
P2 SUS 420J2
YY Special
9. PLUG APPLICATION
X Not applicable
A Cobalt based alloy
Y Special
10. STEM MATERIAL
VH Inconel 718
YY Special
11. SEAT TYPE
S1 Single metal seat
YY Special
12. SEAT / CAGE / DISK STACK MATERIAL
Seat Cage Disk Stack
D1 A182 gr. F91 - Inconel 718
P2 SUS 420J2 SUS 420J2 SUS 420J2
YY Special Special Special
13. SEAT APPLICATION
X Not applicable
A Cobalt based alloy
Y Special
14. PACKING TYPE
S Standard packing
Y Special
15. PACKING MATERIAL
F Graphite (with mold and braided)
H Hi-Graphite (with mold and braided)
Y Special
16. SEALS MATERIAL
F Graphite
C Metal C-seal ring
M Metal (Ductile)
Y Special
17. GASKET MATERIAL
H S/W gasket type, 316 SS + Graphite for high temp.
M S/W gasket type, 316 SS + Graphite for extreme temp.
Y Special
18. STUD / NUT MATERIAL
H A193 gr. B16 / A194 gr. 4
Y Special
19. OPTIONS
X Not applicable
Y Special
20.
Sign Sign Sign Description
* Rated Cv is applied differently depending on the trim type & trim characteristic. * Srk. & number i n bracket means the valve stroke.
TRIM TYPE
B Balanced plug type L Linear FT Tendril 1 stage / Full capacity 32 (40) 78 (50) 156 (50) 310 (60) 540 (80) 700 (90) 1150(120) 1450(140) 1900 (160)
P Pilot balanced plug type Q Quick opening 1T Tendril 1 stage / 1-Step reduction 14 (40) 34 (50) 84 (50) 170 (60) 340 (80) 500 (90) 850 (120) 1100(140) 1500 (160)
Y Special Y Special YY Special Contact Metso Automation for Cv details
21.
TRIM
CHARACTERISTIC
E Equal % FT Tendril 1 stage / Full capacity 28 (40) 70 (50) 146 (50) 280 (60) 490 (80) 600 (90) 950 (120) 1200(140) 1500(160)
22. RATED Cv
2"Srk. 3"Srk. 4"Srk. 6"Srk. 8"Srk. 10"Srk. 12" Srk. 14"Srk. 16"Srk.
FM Tendril 2 stage / Full capacity 28 (40) 64 (50) 128 (5 0) 196 (60) 320 (80) 436 (90) 76 0 (120) 980 (140) 1200(160)
1M Tendril 2 stage / 1-Step reduction 24 (40) 42 (50) 56 (5 0) 88 (60) 144 (80) 196 (90) 342 (120) 440 (140) 540 (160)
FG OMEGA / Full capacity 26 (40) 54 ( 50) 84 (50) 1 46 (60) 252 (80) 384 (90) 560 (120) 770 (140) 1020(160)
1G OMEGA / 1-Step reduction 12 (40) 28 (50) 52 (50) 90 (60) 156 (80) 234 (90) 340 (120) 470 (140) 624 (160)
2G OMEGA / 2-Step reduction 6 (40) 14 (50) 26 (50) 45 (60) 78 (80) 116 (90) 170 (120) 234 (140) 310 (160)
3G OMEGA / 3-Step reduction 3 (40) 7 (50) 14 (50) 22 (60) 40 (80) 58 (90) 84 (120) 116 (140) 154 (160)
1T Tendril 1 stage / 1-Step reduction 12 (40) 30 (50) 76 (50) 160 (60) 310 (80) 450 (90) 800 (120) 1000 (140) 1250 (160)
FM Tendril 2 stage / Full capacity 20 (40) 48 (50) 98 (50) 142 (60) 236 (80) 360 (90) 500 (120) 650 (140) 850 (160)
1M Tendril 2 stage / 1-Step reduction 18 (40) 32 (50) 44 (5 0) 64 (60) 106 (80) 162 (90) 254 (120) 306 (140) 410 (160)
FG OMEGA / Full capacity 18 (40) 38 ( 50) 60 (50) 104 (60) 176 (80) 268 (90) 39 0 (120) 540 (140) 710 (160 )
1G OMEGA / 1-Step reduction 11 (40) 24 (50) 36 (50) 64 (60) 108 (80) 164 (90) 236 (120) 328 (140) 430 (160)
2G OMEGA / 2-Step reduction 5 (40) 12 (50) 18 (50) 32 (60) 54 (80) 82 (90) 11 8 ( 120) 164 (140) 214 (160)
3G OMEGA / 3-Step reduction 2 (40) 6 (50) 9 (50) 16 (60) 27 (80) 40 (9 0) 60 (120) 82 (140) 106 (160)
Body Size
4 GV 76 en 23
Desuperheater for Globe type, Series GS
1. 2. 3. 4. 5. 6. 7. 8.
GS JL D W S GM N N
PRODUCT
1. VALVE SERIES
GS Desuperheater for Globe type
HOUSING CONSTRUCTION
2. BODY SIZE
2a INLET SIZE 2b OUTLET SIZE
" / DN 25 C 1" / DN 25
C 1
D 1-1/2
E 2
G 3
H 4
J 6
K 8
L 10
M 12
N 14
P 16
Y Special Y Special
3. PRESSURE RATING
C ASME Class 150
F ASME Class 600 G ASME Class 900
H ASME Class 1500 I ASME Class 2500
A ASME Class 4500 Y Special
4. END CONNECTION
W Flanged RF, A SME B16.5
V Socket welding, ASME B16.11
Q Butt welding, ASME B16.25
Z Ring joint flange, ASME B16.5
Y Special
" / DN 40 D 1-1/2" / DN 40
" / DN 50 E 2" / DN 50
" / DN 80 G 3" / DN 80
" / DN 100 H 4" / DN 100
" / DN 150 J 6" / DN 150
" / DN 200 K 8" / DN 200
" / DN 250 L 10" / DN 250
" / DN 300 M 12" / DN 300
" / DN 350 N 14" / DN 350
" / DN 400 P 16" / DN 400
ASME Class 300
D
OTHERS
5. HOUSING CONSTRUCTION
S Desuperheater with Straight housing
N Desuperheater with Angle housing
D Desuperheater only
Y Special
6. HOUSING MATERIAL
BX A335 gr. P11 CM A335 gr. P21
DK A335 gr. P91 XX Not applicable
YY Special
7. SPRAY NOZZLE CONSTRUCTION
A 1-Spray nozzle Cv 1 L 3-Spray nozzle Cv 3
B 1-Spray nozzle Cv 1.5 M 3-Spray nozzle Cv 4.5
C 1-Spray nozzle Cv 3 N 3-Spray nozzle Cv 9
D 1-Spray nozzle Cv 5 P 3-Spray nozzle Cv 15
E 1-Spray nozzle Cv 8 Q 3-Spray nozzle Cv 24
F 2-Spray nozzle Cv 2 R 4-Spray nozzle Cv 4
G 2-Spray nozzle Cv 3 S 4-Spray nozzle Cv 6
H 2-Spray nozzle Cv 6 T 4-Spray nozzle Cv 24
J 2-Spray nozzle Cv 10 U 4-Spray nozzle Cv 40
K 2-Spray nozzle Cv 16 V 4-Spray nozzle Cv 64
Y Special
8. OPTION
X Not applicable
N Liner for Desuperheater
Y Special
* The materials are subject to change as equivalent depending on detail design.
South Korea, 235 Cheomdansaneop 1-ro, Daesowon-myeon, Chungju-si, Chungbuk-do, 380-871, Korea Tel. +82 43 852 7708, Fax +82 43 841 9890
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, Haw Par Centre #06-01, 180 Clemenceau Avenue, Singapore 239922. 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
Metso Flow Control Inc.
24 4 GV 76 en
Loading...