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Local regulations may restrict the use of this product to below the conditions quoted.
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7.5.1
Steam
TI-P029-01
ST Issue 8
Description
LCV1
Bronze
Lift Check Valve
The LCV1 is a bronze lift check valve which is installed in horizontal
lines to prevent reverse flow.
Standards
This product fully complies with the requirements of the European
Pressure Equipment Directive 97/23/EC.
1
Certification
3
This product is available with certification to EN 10204 2.2.
Note: All certification/inspection requirements must be stated at
the time of order placement.
Sizes and pipe connections
1⁄2", 3⁄4", 1", 11⁄4", 11⁄2", 2" and 3". Screwed BSP or NPT
Pressure/temperature limits
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The product must not be used in this region.
Materials
No.
Part
1
Body
2
Cone
3
Cap
4*
Spring
* Not illustrated
Body design conditions
PMA Maximum allowable pressure
TMA Maximum allowable temperature
Minimum allowable temperature
PMO
Maximum operating pressure
for saturated steam service
TMO Maximum operating temperature
Material
Bronze
Brass
Brass
Stainless steel
PN16
16 bar g @ 180°C
250°C @ 8 bar g
-29°C
14 bar g
250°C @ 8 bar g
0°C
Designed for a maximum cold hydraulic test pressure of 28 bar g
EN 1982 CC491K
BS 2874 CZ 114
EN 12165 CW617N
BS 2056 302 S26
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco.
Kv values
Size
1⁄2"
3⁄4"
1"
11⁄4"
11⁄2"
2"
3"
Kv
1.9
4.3
8.5
11.9
For conversion: Cv (UK) = Kv x 0.963
Opening pressures in mbar
Without springs
18.8 30.8 68.4
Cv (US) = Kv x 1.156
Flow pressures
Size
1⁄2"
3⁄4"
1"
11⁄4"
11⁄2
2"
6.2
7.4
6.5
7.1
7.1
6.9
With springs fitted the opening pressure is the same as the spring
strength.
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