Pipeline ancillaries

Lift check valves

Page 3 of 8

LCV4 pressure / temperature limits

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A -C

A -D

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A

Flanged EN 1092 PN40.

Flanged ASME 150.

Pressure bar g

Pressure bar g

The product must not be used in this region.

Flanged JIS / KS 20.

The product must not be used in this region.

Screwed NPT, socket weld and flanged ASME 300.

E - F

E

Stea m

saturation

curve

Stea m

saturation

curve

F

D

C

B

Body design conditions

PMA Maximum allowable pressure

PN40

40 bar g @ 50°C

300°C @ 27.6 bar g

400°C @ 23.8 bar g

-10°C

31.1 bar g

300°C @ 27.6 bar g

400°C @ 23.8 bar g

-10°C

60 bar g

ASME 150

19.3 bar g @ 38°C

300°C @ 10.2 bar g

400°C @ 6.5 bar g

-10°C

13.9 bar g

300°C @ 10.2 bar g

400°C @ 6.5 bar g

-10°C

30 bar g

ASME 300

51.1 bar g @ 38°C

300°C @ 39.8 bar g

400°C @ 34.7 bar g

-10°C

41.8 bar g

300°C @ 39.8 bar g

400°C @ 34.7 bar g

-10°C

77 bar g

JIS / KS 20

34 bar g @ 120°C

300°C @ 32 bar g

0°C

30 bar g

300°C @ 32 bar g

0°C

51 bar g

TMA

Maximum allowable temperature

Flanged EN 1092 PN40

Flanged ASME 150

Screwed NPT

Socket weld

and

Flanged ASME 300

Flanged JIS / KS 20

Maximum allowable temperature with high temperature bolting

Minimum allowable temperature

PMO Maximum operating pressure for saturated steam service

TMO

Maximum operating temperature

Maximum operating temperature with high temperature bolting

Minimum operating temperature

Note: For lower operating temperatures consult Spirax Sarco.

Designed for a maximum cold hydraulic test pressure of:

Body design conditions

PMA Maximum allowable pressure

TMA

Maximum allowable temperature

Maximum allowable temperature with high temperature bolting

Minimum allowable temperature

PMO Maximum operating pressure for saturated steam service

TMO

Maximum operating temperature

Maximum operating temperature with high temperature bolting

Minimum operating temperature

Note: For lower operating temperatures consult Spirax Sarco.

Designed for a maximum cold hydraulic test pressure of:

Body design conditions

PMA Maximum allowable pressure

TMA

Maximum allowable temperature

Maximum allowable temperature with high temperature bolting

Minimum allowable temperature

PMO Maximum operating pressure for saturated steam service

TMO

Maximum operating temperature

Maximum operating temperature with high temperature bolting

Minimum operating temperature

Note: For lower operating temperatures consult Spirax Sarco.

Designed for a maximum cold hydraulic test pressure of:

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

Minimum operating temperature

Note: For lower operating temperatures consult Spirax Sarco.

Designed for a maximum cold hydraulic test pressure of:

LCV3, LCV4, LCV6 and LCV7 Lift Check Valves

TI-P029-16 ST Issue 4

Page 3 of 8

7.5.6

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