Pipeline ancillaries Disc, split disc and wafer check valves
10
Sizes and pipe connections DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80 and DN100. Suitable for installation between BS 10 Tables 'E' and 'H', EN 1092 PN6, PN10, PN16, PN25 and PN40; JIS 5, JIS 10, JIS 16, JIS 20 flanges with the following exceptions: DN40, DN50, DN80 and DN100 - will not fit between JIS 5 flanges. DN65 and DN80 - will not fit between BS 10 'E' flanges.
Operation Disc check valves are opened by the pressure of the fluid and closed by the spring as soon as the flow ceases and before the reverse flow occurs.
Open
Closed
Materials
The DCV3LT is supplied with ' LT ' stamped on the unit.
LT
7.5.7
3 4 2 1
10.5 10
No.
Part
Material
1 2 3
Body
Austenitic stainless steel
WS 1.4581
Disc
Austenitic stainless steel
ASTM A276 316
Spring retainer
Austenitic stainless steel
BS 1449 316 S11
Standard spring
Austenitic stainless steel
BS 2056 316 S42
4
Heavy duty spring
Austenitic stainless steel
BS 2056 316 S42
High temperature spring
Nickel alloy
Nimonic 90
Note: Special testing to allow lower temperature operation can be provided at extra cost. Consult Spirax Sarco.
TI-P134-50 CMGT Issue 12
Page 2 of 5
DCV3, DCV3LT and DCV3 Food+ Disc Check Valves
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