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2.3 Pressure/temperature limits
0
100
400
A
300
E
200
100
0
-29
0
10
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.
Various options are denoted by a marking on the valve body:-
'N'
High temperature spring
'W'
Without spring
'H'
Heavy duty spring
'V'
Standard spring
'E'
Standard spring
Body design conditions
PMA
Maximum allowable pressure
TMA
Maximum allowable temperature
Minimum allowable temperature
PMO
Maximum operating pressure (bar g)
Maximum
TMO
operating
temperature
* Minimum operating
temperature
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.
DCV41 and DCV41 Food+ Austenitic Stainless Steel Disc Check Valve
6
Pressure psi g
200
300
400
B
Steam saturation curve
20
30
Pressure bar g
Standard metal seat
Standard metal seat
Standard metal seat
Viton seat
EPDM seat
With metal seat and standard spring
With metal seat and high temperature spring
Without spring
Viton seat
EPDM seat
With metal seat
With viton seat
With EPDM seat
500
600
700
C
D
40
49.6
No identification indicates a
standard spring with a metal disc.
Please note: Special testing to allow
lower temperature operation can be
provided at extra cost.
Consult Spirax Sarco.
49.6 barg @ 38 °C
400 °C @ 29.4 barg
49.6 bar g @ 38 °C
-25 °C to +205 °C
-40 °C to +120 °C
A - B - D
700
High temperature
600
spring and without
500
spring.
400
300
E - C - D
200
Standard spring.
100
-20
(719 psi g @ 100 °F)
(752 °F @ 426 psi g)
-29 °C
(719 psi g @ 100 °F)
300 °C
400 °C
400 °C
205 °C
120 °C
-29 °C
(-13 °F to +401 °F)
(-40 °F to +248 °F)
76 bar g
(1102 psi g)
IM-P601-19 CMGT Issue 8
PN50
(-20 °F)
(572 °F)
(752 °F)
(752 °F)
(401 °F)
(248 °F)
(-20 °F)
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