Pipeline ancillaries Disc, split disc and wafer check valves
10
Pressure/temperature limits (ISO 6552) - Flanged EN 1092
-46 0 100 200 300 400 500
A
C
B
SDCV7 Carbon steel SDCV8 Stainless steel
Steam saturation curve
C
B
10
20
30
40
0
Pressure bar g
The product must not be used in this region or beyond the parameter of the PMA or TMA of the relative end connection.
Body design condition
PN40
40 bar g @ 100 ° C
PMA Maximum allowable pressure
500 ° C @ 26.4 bar g
TMA Maximum allowable temperature
-196 ° C
Metal seat
Minimum allowable temperature
-10 ° C
Fluoroelastomer soft seat
A - B - B PN40
40 bar g @ 100 ° C
PMO Maximum operating pressure
500 ° C @ 26.4 bar g
Metal seat
TMO Maximum operating temperature
200 ° C @ 40 bar g
Fluoroelastomer soft seat
-196 ° C
Metal seat
Minimum operating temperature
-10 ° C
Fluoroelastomer soft seat
Designed for a maximum cold hydraulic test pressure of:
76 bar g
Body design condition
PN16
16 bar g @ 100 ° C
PMA Maximum allowable pressure
500 ° C @ 10.5 bar g
TMA Maximum allowable temperature
7.5.42
-196 ° C
Metal seat
Minimum allowable temperature
-10 ° C
Fluoroelastomer soft seat
A - C - C PN16
16 bar g @ 100 ° C
PMO Maximum operating pressure
500 ° C @ 10.5 bar g 200 ° C @ 13.4 bar g
Metal seat
TMO Maximum operating temperature
Fluoroelastomer soft seat
-196 ° C
Metal seat
Minimum operating temperature
-10 ° C
Fluoroelastomer soft seat
10.5 59
Designed for a maximum cold hydraulic test pressure of:
24 bar g
TI-P601-43 CMGT Issue 4
Page 3 of 6
SDCV3, SDCV4, SDCV7 and SDCV8 Split Disc Check Valves
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