Pipeline ancillaries

Disc, split disc and wafer check valves

A

B

E

Steam

saturation

curve

C

D

7.6.9

Pressure / temperature limits

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Pressure bar g

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The product must not be used in this region.

For use in this area use a DCV41 with high temperature

spring or DCV41 without spring.

A-B-D High temperature spring and without spring.

E-C-D Standard spring.

Please note: Special testing to allow lower temperature operation

can be provided at extra cost. Consult Spirax Sarco.

PN50

49.6 bar g @ 38 °C

400 °C @ 29.4 bar g

-29 °C

49.6 bar g @ 38 °C

300 °C

400 °C

400 °C

205 °C

120 °C

-29 °C

-25 °C to +205 °C

-40 °C to +120 °C

76 bar g

Body design conditions

PMA Maximum allowable pressure

TMA Maximum allowable temperature

Minimum allowable temperature

PMO Maximum operating pressure (bar g)

TMO Maximum operating temperature

Minimum operating temperature

*

With

With

metal seat and standard spring

metal seat and high temperature spring

Without spring

Viton seat

EPDM seat

With metal seat

With viton seat

With EPDM seat

Designed for a maximum cold hydraulic test pressure of

* Note:

Special testing to allow lower temperature operation can be provided at extra cost. Consult Spirax Sarco.

Dimensions/weight (approximate) in mm and kg

Size

A

A

B

Weight

Socket weld

Screwed

A/F

1⁄2"

50

51

34

0.2

3⁄4"

55

57

41

0.3

1"

67

68

50

0.5

A

End elevation

B

Page 2 of 3

TI-P601-18 ST Issue 8

DCV41 Austenitic Stainless Steel Disc Check Valve

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