Spirax Sarco LCV6 User manual

IM-P029-17 ST Issue 4
1
LCV3, LCV4, LCV6 and LCV7
Lift Check Valves
Installation and Maintenance Instructions
IM-P029-17
ST Issue 4
0290050/4
1. Safety information
2. General
product information
3. Installation
4. Commissioning
5. Operation
6. Spare parts and
Maintenance
© Copyright 2015
Printed in France

IM-P029-17 ST Issue 4
2

IM-P029-17 ST Issue 4
3
1. Safety information
Safe operation of these products can only be guaranteed if they are properly
installed, commissioned, used and maintained by qualified personnel (see
Section 1.11) in compliance with the operating instructions. General installation and
safety instructions for pipeline and plant construction, as well as the proper use
of tools and safety equipment must also be complied with.
1.1 Intended use
Referring to the Installation and Maintenance Instructions, name-plate and
Technical Information Sheet, check that the product is suitable for the intended
use / application. The products listed below comply with the requirements of the
European Pressure Equipment Directive 97 / 23 / EC and carry the mark when so
required. It should be noted that products rated as 'SEP' are required by the Directive
not to carry the mark. The products fall within the following Pressure Equipment
Directive categories:
Unit Sizes Connections Group 1
Gases
Group 2
Gases
Group 1
Liquids
Group 2
Liquids
LCV3
DN15 to DN25 All SEP SEP SEP SEP
DN32 to DN50 All 1SEP SEP SEP
DN65 to DN100 All 2 1 SEP SEP
LCV4
DN15 to DN25 All SEP SEP SEP SEP
DN32 All 2SEP SEP SEP
DN40 to DN50
ASME 150
1SEP SEP SEP
JIS / KS 10
PN25 and PN40
2 1 SEP SEP
JIS / KS 20
Others 2 1 2 SEP
DN65 to DN100 All 2 1 2 SEP

IM-P029-17 ST Issue 4
4
Unit Sizes Connections Group 1
Gases
Group 2
Gases
Group 1
Liquids
Group 2
Liquids
LCV6
DN15 to DN25 All SEP SEP SEP SEP
DN32 All 2SEP SEP SEP
DN40 to DN50
ASME 150
1SEP SEP SEP
JIS / KS 10
BSP
2 1 SEP SEPPN16, PN25 and PN40
JIS / KS 20
Others 2 1 2 SEP
DN65 to DN100 All SEP 1 2 SEP
LCV7
DN15 to DN25 All SEP SEP SEP SEP
DN32 to DN40
ASME 250
2 1 SEP SEP
NPT
Others 1SEP SEP SEP
DN50 to DN65
ASME 125
1SEP SEP SEP
JIS / KS 10
Others 2 1 SEP SEP
DN80
ASME 250 2 1 2 SEP
Others 2 1 SEP SEP
DN100
ASME 125
2 1 SEP SEPPN16
JIS / KS 10
Others 2 1 2 SEP

IM-P029-17 ST Issue 4
5
i) Theseproductshavebeenspecicallydesignedforuseonsteam,airorwater/
condensate as stated in Groups 1 and 2 of the above mentioned Pressure
EquipmentDirective.Theproducts’useonotheruidsmaybepossiblebut,if
thisiscontemplated,SpiraxSarcoshouldbecontactedtoconrmthesuitability
of the product for the application being considered.
ii) Check material suitability, pressure and temperature and their maximum and
minimum values. If the maximum operating limits of the product are lower than
thoseofthesysteminwhichitisbeingtted,orifmalfunctionoftheproduct
could result in a dangerous overpressure or overtemperature occurrence, ensure
a safety device is included in the system to prevent such over-limit situations.
iii) Determinethecorrectinstallationsituationanddirectionofuidow.
iv) Spirax Sarco products are not intended to withstand external stresses that may
beinducedbyanysystemtowhichtheyaretted.Itistheresponsibilityofthe
installer to consider these stresses and take adequate precautions to minimise
them.
v )  R e m o v e  p r o t e c t i o n  c o v e r s  f r o m  a l l  c o n n e c t i o n s  a n d  p r o t e c t i v e   l m  f r o m  a l l 
name-plates, where appropriate, before installation on steam or other high
temperature applications.
1.2 Access
Ensure safe access and if necessary a safe working platform (suitably guarded)
before attempting to work on the product. Arrange suitable lifting gear if required.
1.3 Lighting
Ensure adequate lighting, particularly where detailed or intricate work is required.
1.4 Hazardous liquids or gases in the pipeline
Consider what is in the pipeline or what may have been in the pipeline at some
previous time. Consider: ammable materials, substances hazardous to health,
extremes of temperature.
1.5 Hazardous environment around the product
Consider: explosion risk areas, lack of oxygen (e.g. tanks, pits), dangerous gases,
extremesoftemperature,hotsurfaces,rehazard(e.g.duringwelding),excessive
noise, moving machinery.
1.6 Isolation
Consider the effect on the complete system of the work proposed. Will any proposed
action (e.g. closing isolation valves, electrical isolation) put any other part of the
system or any personnel at risk?
Dangers might include isolation of vents or protective devices or the rendering
ineffective of controls or alarms. Ensure isolation valves are turned on and off in a
gradual way to avoid system shocks.

IM-P029-17 ST Issue 4
6
1.7 Pressure
Before attempting any maintenance consider what is or may have been in the
pipeline. Ensure that any pressure is isolated and safely vented to atmospheric
pressure before attempting to maintain the product, this is easily achieved by
fitting Spirax Sarco depressurisation valves type DV (see separate literature for
details) and consider double isolation (double block and bleed) and the locking or
labelling of closed valves. Do not assume that the system is depressurised even
when a pressure gauge indicates zero.
1.8 Temperature
Allow time for temperature to normalise after isolation to avoid the danger of burns
and consider whether protective clothing (including safety glasses) is required.
1.9 Tools and consumables
Before starting work ensure that you have suitable tools and/or consumables
available. Use only genuine Spirax Sarco replacement parts.
1.10 Protective clothing
Consider whether you and/or others in the vicinity require any protective clothing
to protect against the hazards of, for example, chemicals, high / low temperature,
radiation, noise, falling objects, and dangers to eyes and face.
1.11 Permits to work
All work must be carried out or be supervised by a suitably competent person.
Installation and operating personnel should be trained in the correct use of the
product according to the Installation and Maintenance Instructions.
Where a formal 'permit to work' system is in force it must be complied with. Where
there is no such system, it is recommended that a responsible person should
know what work is going on and, where necessary, arrange to have an assistant
whose primary responsibility is safety.
Post 'warning notices' if necessary.
1.12 Handling
Manual handling of large and/or heavy products may present a risk of injury. Lifting,
pushing, pulling, carrying or supporting a load by bodily force can cause injury
particularly to the back. You are advised to assess the risks taking into account the
task, the individual, the load and the working environment and use the appropriate
handling method depending on the circumstances of the work being done.
1.13 Residual hazards
In normal use the external surface of the product may be very hot. If used at the
maximum permitted operating conditions the surface temperature of some products
may reach temperatures of 400°C (752°F).
Many products are not self-draining. Take due care when dismantling or removing
the product from an installation (refer to 'Maintenance instructions').

IM-P029-17 ST Issue 4
7
Safe Handling
Cast Iron is a brittle material. If the product is dropped
during installation and there is any risk of damage the
product should not be used unless it is fully inspected and
pressure tested by the manufacturer.
1.14 Freezing
Provision must be made to protect products which are not self-draining against
frost damage in environments where they may be exposed to temperatures below
freezing point.
1.15 Disposal
Unless otherwise stated in the Installation and Maintenance Instructions, these
products are recyclable and no ecological hazard is anticipated with their disposal
providing due care is taken.
1.16 Returning products
Customers and stockists are reminded that under EC Health, Safety and
Environment Law, when returning products to Spirax Sarco they must provide
information on any hazards and the precautions to be taken due to contamination
residues or mechanical damage which may present a health, safety or
environmental risk. This information must be provided in writing including
Healthand Safetydata sheetsrelatingtoanysubstances identiedashazardous
or potentially hazardous.
1.17 Working safely with cast iron products on steam
Cast iron products are commonly found on steam and condensate systems. If
installed correctly using good steam engineering practices, it is perfectly safe.
However, because of its mechanical properties, it is less forgiving compared to other
materials such as SG iron or carbon steel. The following are the good engineering
practices required to prevent waterhammer and ensure safe working conditions on
a steam system.


IM-P029-17 ST Issue 4
8
Steam
Trap set
Trap set Trap set
Steam
Gradient 1:100
Gradient 1:100
30 - 50 metre intervals
Condensate Condensate
Condensate
Prevention of water hammer
Steam trapping
on steam mains:
Steam Mains - Do's and Don'ts:
Steam 









Steam
Flow Flow

IM-P029-17 ST Issue 4
9
Prevention of tensile stressing
Pipe misalignment:
Installing products or re-assembling after maintenance:
Thermal expansion:
Do not over tighten.
Use correct torque gures.
1
1
4 2
3
8
2
6
3
7
Flange bolts should be gradually tightened across
diameters to ensure even load and alignment.
Guides
Guides
Limit
rods
Limit rods
Fixing point
Medium
distance
Small
lateral
movement
Small
lateral
movement
Large
lateral
movement
Large
lateral
movement
Short
distance Fixing point
Axial
movement
Axial movement
Guides
Guides
5
4


IM-P029-17 ST Issue 4
10
2. General product information
2.1 General description
The LCV3, LCV4, LCV6 and LCV7 lift check valves are designed in accordance with
EN 12516 and ASME B16.34 to prevent reverse flow in the installations.
Available types:
LCV3 Cast iron bodied with stainless steel internals.
LCV4 Cast steel bodied with stainless steel internals.
LCV6 Stainless steel bodied with stainless steel internals.
LCV7 SG iron bodied with stainless steel internals.
Optional for the LCV4:
High temperature bolting (stainless steel A2-70).
Standards
These products fully comply with the requirements of the European Pressure Equipment
Directive 97/23/EC and carries the mark when so required.
Standard shut-off
This range of lift check valves conform to EN 12266-1: 2003 Rate F.
Certification
With the exception of the LCV3 these products are available with certification to
EN 10204 3.1. Note: All certification / inspection requirements must be stated at the time of
order placement.
Note:
For further information see the following Technical Information Sheet TI-P029-16.
2.2 Sizes and pipe connections
Unit LCV3 LCV4
Connections
PN16
JIS / KS10
ASME 125 BSP
NPT
PN40
JIS / KS 20
ASME 150
ASME 300
NPT SW
DN15 ½" • • • • •
DN20 ¾" • • • • •
DN25 1" • • • • • •
DN32 1¼" • • • •
DN40 1½" • • • • • •
DN50 2" • • • • • •
DN65 2½" • • • •
DN80 3" • • • •
DN100 4" • • • •

IM-P029-17 ST Issue 4
11
Fig. 1
Unit LCV6 LCV7
Connections
PN40
JIS / KS20
ASME 150
ASME 300
BSP NPT
SW
PN16
PN25
JIS / KS10
ASME 125
ASME 250
BSP
NPT
DN15 ½" • • • • •
DN20 ¾" • • • • •
DN25 1" • • • • • •
DN32 1¼" • • • •
DN40 1½" • • • • • •
DN50 2" • • • • • •
DN65 2½" • • • •
DN80 3" • • • •
DN100 4" • • • •
2.2 Sizes and pipe connections

IM-P029-17 ST Issue 4
12
Temperature °C







  
    
  













   
        





2.3 Pressure / temperature limits - LCV3
Temperature °C
Pressure bar g
Steam
saturation
curve
The product must not be used in this region.
A - B Screwed BSP and flanged EN 1092 PN16.
C - D Screwed NPT, socket weld and flanged ASME 125.
A
B
C
D
Pressure bar g
Steam
saturation
curve
F
E
The product must not be used in this region.
E - F Flanged JIS / KS 10.
Body design conditions JIS / KS 10
PMA Maximum allowable pressure 13.7 bar g @ 120°C(199 psi g @ 248°F)
TMA Maximum allowable temperature 220°C @ 9.8 bar g (428°F @ 142 psi g)
Minimum allowable temperature 0°C(32°F)
PMO Maximum operating pressure
for saturated steam service 11.2 bar g (162 psi g)
TMO Maximum operating temperature 220°C @ 9.8 bar g (428°F @ 142 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. 0°C(32°F)
Designed for a maximum cold hydraulic test pressure of: 20 bar g (290 psi g)
Flanged JIS / KS 10
Pressure psi g
Temperature °F
Pressure psi g
Temperature °F

IM-P029-17 ST Issue 4
13
Screwed and Flanged EN 1092 PN16
Body design conditions PN16
PMA Maximum allowable pressure 16 bar g @ 120°C(232 psi g @ 248°F)
TMA Maximum allowable temperature 300°C @ 9.6 bar g (572°F @ 139 psi g)
Minimum allowable temperature -10°C(14°F)
PMO Maximum operating pressure for saturated steam service 13 bar g
TMO Maximum operating temperature 300°C @ 9.6 bar g (572°F @ 139 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. -10°C(14°F)
Designed for a maximum cold hydraulic test pressure of: 24 bar g (348 psi g)
Flanged ASME 125
Body design conditions ASME 125
PMA Maximum allowable pressure 13.8 bar g @ 65°C(200 psi g @ 149°F)
TMA Maximum allowable temperature 232°C @ 8.6 bar g (449°F @ 125 psi g)
Minimum allowable temperature -10°C(14°F)
PMO Maximum operating pressure for
saturated steam service 10 bar g (145 psi g)
TMO Maximum operating temperature 232°C @ 8.6 bar g (449°F @ 125 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. -10°C(14°F)
Designed for a maximum cold hydraulic test pressure of 20.5 bar g (297 psi g)

IM-P029-17 ST Issue 4
14
Temperature °C








     
    












    
       







2.3 Pressure / temperature limits - LCV4
Temperature °C
Pressure bar g
Steam
saturation
curve
A
BCD
Pressure bar g
Steam
saturation
curve
F
E
The product must not be used in this region.
E - F Flanged JIS / KS 20.
The product must not be used in this region.
A - B Screwed NPT, socket weld and flanged ASME 300.
A - C Flanged EN 1092 PN40.
A - D Flanged ASME 150.
Flanged JIS / KS 20
Pressure psi g
Temperature °F
Pressure psi g
Temperature °F
Body design conditions JIS / KS 20
PMA Maximum allowable pressure 34 bar g @ 120°C(493 psi g @ 248°F)
TMA Maximum allowable temperature 300°C @ 32 bar g (572°F @ 464 psi g)
Minimum allowable temperature 0°C(32°F)
PMO Maximum operating pressure
for saturated steam service 30 bar g (435 psi g)
TMO Maximum operating temperature 300°C @ 32 bar g (572°F @ 464 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. 0°C(32°F)
Designed for a maximum cold hydraulic test pressure of: 51 bar g (739 psi g)

IM-P029-17 ST Issue 4
15
Flanged EN 1092 PN40
Body design conditions PN40
PMA Maximum allowable pressure 40 bar g @ 50°C(580 psi g @ 122°F)
TMA Maximum allowable temperature 300°C @ 27.6 bar g (572°F @ 400 psi g)
Maximum allowable temperature with high
temperature bolting 400°C @ 23.8 bar g (752°F @ 345 psi g)
Minimum allowable temperature -10°C(14°F)
PMO Maximum operating pressure for
saturated steam service 31.1 bar g (451 psi g)
TMO Maximum operating temperature 300°C @ 27.6 bar g (572°F @ 400 psi g)
Maximum operating temperature with high
temperature bolting 400°C @ 23.8 bar g (752°F @ 345 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. -10°C(14°F)
Designed for a maximum cold hydraulic test pressure of: 60 bar g (870 psi g)
Flanged ASME 150
Body design conditions ASME 150
PMA Maximum allowable pressure 19.3 bar g @ 38°C(280 psi g @ 100°F)
TMA Maximum allowable temperature 300°C @ 10.2 bar g (572°F @ 148 psi g)
Maximum allowable temperature with high
temperature bolting 400°C @ 6.5 bar g (752°F @ 94 psi g)
Minimum allowable temperature -10°C(14°F)
PMO Maximum operating pressure for
saturated steam service 13.9 bar g (201 psi g)
TMO Maximum operating temperature 300°C @ 10.2 bar g (572°F @ 148 psi g)
Maximum operating temperature with high
temperature bolting 400°C @ 6.5 bar g (752°F @ 94 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. -10°C(14°F)
Designed for a maximum cold hydraulic test pressure of: 30 bar g (435 psi g)
Screwed NPT, Socket weld and Flanged ASME 300
Body design conditions ASME 300
PMA Maximum allowable pressure 51.1 bar g @ 38°C(741 psi g @ 100°F)
TMA Maximum allowable temperature 300°C @ 39.8 bar g (572°F @ 577 psi g)
Maximum allowable temperature with high
temperature bolting 400°C @ 34.7 bar g (752°F @ 503 psi g)
Minimum allowable temperature -10°C(14°F)
PMO Maximum operating pressure for
saturated steam service 41.8 bar g (606 psi g)
TMO Maximum operating temperature 300°C @ 39.8 bar g (572°F @ 577 psi g)
Maximum operating temperature with
high temperature bolting 400°C @ 34.7 bar g (752°F @ 503 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. -10°C(14°F)
Designed for a maximum cold hydraulic test pressure of: 77 bar g (1 117 psi g)

IM-P029-17 ST Issue 4
16
Temperature °C








     
    

















      







2.3 Pressure / temperature limits - LCV6
Temperature °C
Pressure bar g
Steam
saturation
curve
The product must not be used in this region.
A - B Screwed NPT, socket weld and flanged ASME 300.
A - C Screwed BSP and flanged EN 1092 PN40.
A - D Flanged ASME 150.
A
BCD
Pressure bar g
F
E
The product must not be used in this region.
E - F Flanged JIS / KS 20.
Steam
saturation
curve
Flanged JIS / KS 20
Pressure psi g
Temperature °F
Pressure psi g
Temperature °F
Body design conditions JIS / KS 20
PMA Maximum allowable pressure 34 bar g @ 120°C(493 psi g @ 248°F)
TMA Maximum allowable temperature 300°C @ 32 bar g (572°F @ 464 psi g)
Minimum allowable temperature 0°C(32°F)
PMO Maximum operating pressure for
saturated steam service 23.5 bar g (431 psi g)
TMO Maximum operating temperature 300°C @ 32 bar g (572°F @ 464 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. 0°C(32°F)
Designed for a maximum cold hydraulic test pressure of: 51 bar g (739 psi g)

IM-P029-17 ST Issue 4
17
Screwed BSP and Flanged EN 1092 PN40
Body design conditions PN40
PMA Maximum allowable pressure 40 bar g @ 50°C(580 psi g @ 122°F)
TMA Maximum allowable temperature 400°C @ 27.4 bar g (752°F @ 397 psi g)
Minimum allowable temperature -10°C(14°F)
PMO Maximum operating pressure for
saturated steam service 32.3 bar g (468 psi g)
TMO Maximum operating temperature 400°C @ 27.4 bar g (752°F @ 397 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. -10°C(14°F)
Designed for a maximum cold hydraulic test pressure of: 60 bar g (870 psi g)
Screwed NPT, Socket weld and Flanged ASME 300
Body design conditions ASME 300
PMA Maximum allowable pressure 49.6 bar g @ 38°C(719 psi g @ 100°F)
TMA Maximum allowable temperature 400°C @ 29.4 bar g (752°F @ 426 psi g)
Minimum allowable temperature -10°C(14°F)
PMO Maximum operating pressure for
saturated steam service 34 bar g (493 psi g)
TMO Maximum operating temperature 400°C @ 29.4 bar g (752°F @ 426 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. -10°C(14°F)
Designed for a maximum cold hydraulic test pressure of: 76 bar g (1 102 psi g)
Flanged ASME 150
Body design conditions ASME 150
PMA Maximum allowable pressure 19 bar g @ 38°C(275 psi g @ 100°F)
TMA Maximum allowable temperature 400°C @ 6.5 bar g (752°F @ 94 psi g)
Minimum allowable temperature -10°C(14°F)
PMO Maximum operating pressure for
saturated steam service 13.8 bar g (200 psi g)
TMO Maximum operating temperature 400°C @ 6.5 bar g (752°F @ 94 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. -10°C(14°F)
Designed for a maximum cold hydraulic test pressure of: 30 bar g (435 psi g)

IM-P029-17 ST Issue 4
18
Temperature °C









  
    
  










    
2.3 Pressure / temperature limits - LCV7
Temperature °C
Pressure bar g
The product must not be used in this region.
A - B Screwed BSP and flanged EN 1092 PN25.
A - C Screwed NPT and flanged EN 1092 PN16.
D - G Flanged ASME 250.
D - H Flanged ASME 125.
Steam
saturation
curve
A
D
HBG
Pressure bar g
Steam
saturation
curve
F
E
The product must not be used in this region.
E - F Flanged JIS / KS 10.
C
Flanged JIS / KS 10
Pressure psi g
Temperature °F
Pressure psi g
Temperature °F
Body design conditions JIS / KS 10
PMA Maximum allowable pressure 13.7 bar g @ 120°C(199 psi g @ 248°F)
TMA Maximum allowable temperature 300°C @ 9.8 bar g (572°F @ 142 psi g)
Minimum allowable temperature 0°C(32°F)
PMO Maximum operating pressure for
saturated steam service 12.3 bar g (178 psi g)
TMO Maximum operating temperature 300°C @ 9.8 bar g (572°F @ 142 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. 0°C(32°F)
Designed for a maximum cold hydraulic test pressure of: 20 bar g (290 psi g)

IM-P029-17 ST Issue 4
19
Flanged EN 1092 PN16
Body design conditions PN16
PMA Maximum allowable pressure 16 bar g @ 120°C(232 psi g @ 248°F)
TMA Maximum allowable temperature 300°C @ 12.8 bar g (572°F @ 185 psi g)
Minimum allowable temperature -10°C(14°F)
PMO Maximum operating pressure for
saturated steam service 14.7 bar g (213 psi g)
TMO Maximum operating temperature 300°C @ 12.8 bar g (572°F @ 185 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. -10°C(14°F)
Designed for a maximum cold hydraulic test pressure of: 24 bar g (348 psi g)
Screwed BSP and Flanged EN 1092 PN25
Body design conditions PN25
PMA Maximum allowable pressure 25 bar g @ 120°C(462 psi g @ 248°F)
TMA Maximum allowable temperature 300°C @ 20 bar g (572°F @ 290 psi g)
Minimum allowable temperature -10°C(14°F)
PMO Maximum operating pressure for
saturated steam service 22.5 bar g (326 psi g)
TMO Maximum operating temperature 300°C @ 20 bar g (572°F @ 290 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. -10°C(14°F)
Designed for a maximum cold hydraulic test pressure of: 38 bar g (551 psi g)
Flanged ASME 125
Body design conditions ASME 125
PMA Maximum allowable pressure 13.8 bar g @ 65°C(200 psi g @ 149°F)
TMA Maximum allowable temperature 232°C @ 8.6 bar g (449°F @ 125 psi g)
Minimum allowable temperature -10°C(14°F)
PMO Maximum operating pressure for
saturated steam service 10 bar g (145 psi g)
TMO Maximum operating temperature 232°C @ 8.6 bar g (449°F @ 125 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. -10°C(14°F)
Designed for a maximum cold hydraulic test pressure of: 20.5 bar g (297 psi g)
Screwed NPT and Flanged ASME 250
Body design conditions ASME 250
PMA Maximum allowable pressure 34.5 bar g @ 65°C(500 psi g @ 149°F)
TMA Maximum allowable temperature 232°C @ 17.2 bar g (449°F @ 249 psi g)
Minimum allowable temperature -10°C(14°F)
PMO Maximum operating pressure for
saturated steam service 19.4 bar g (281 psi g)
TMO Maximum operating temperature 232°C @ 17.2 bar g (449°F @ 249 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco. -10°C(14°F)
Designed for a maximum cold hydraulic test pressure of: 52 bar g (754 psi g)

IM-P029-17 ST Issue 4
20
2.4 Dimensions (approximate) in mm
Please note: Flanged ASME versions are (approximate) in inches
Connection
Screwed
BSP
Socket weld
Flanged
PN40
PN16
PN25
JIS 10 / KS 10
JIS 20 / KS 20
Screwed
NPT
Flanged
ASME 125
Flanged
ASME
250
ASME
300
LCV3 LCV7
DN15 ½" 88 88 4" 4" 4" 4"
DN20 ¾" 88 88 4" 4" 4" 4"
DN25 1" 88 88 4" 4" 4" 4"
DN32 1¼" 117 117 5 "
DN40 1½" 117 117 5 " 5 " 5 " 5 "
DN50 2" 117 117 5 " 5 " 5 " 5 "
DN65 2½" 166 7 " 7 " 7 "
DN80 3" 166 7 " 7 " 7 "
DN100 4" 180 8½" 8½" 8½"
Dimension A
Connection
Screwed
BSP
Socket weld
Flanged
PN40
PN16
PN25
JIS 10 / KS 10
JIS 20 / KS 20
Screwed
NPT
Flanged
ASME 125
Flanged
ASME
250
ASME
300
LCV3 LCV7
DN15 ½" 130 130 6½" 7¼" 7½"
DN20 ¾" 155 150 6½" 7¼" 7½"
DN25 1" 160 160 7¾" 7¼" 7¼" 7¾"
DN32 1¼" 185 180 8½"
DN40 1½" 205 200 9¼" 8¾" 8¾" 9¼"
DN50 2" 230 230 10½"10" 10" 10½"
DN65 2½" 290 10½"10½"11½"
DN80 3" 310 11¾"11¾"12½"
DN100 4" 350 13¾"13¾"14½"
Dimension B