Pipeline ancillaries Disc, split disc and wafer check valves
10
Pipeline draining
Drainage of liquid pipelines is assisted if air is allowed into the system. A DCV wafer check valve fitted as a vacuum breaker will allow this to happen. An EPDM soft faced disc should be fitted.
Process vessels
7.5.33
Cooling water in
Steam in
On process applications that require both heating and cooling of the vessel a DCV wafer check valve will protect each of the supply lines against reverse flow. Valves on water duty should be fitted with EPDM soft faced discs.
10.5 50
Condensate water out
Condensate out
AI-P134-32 ST Issue 3
Page 2 of 3
DCV Wafer Check Valve Applications Sheet 2
Powered by FlippingBook