Spirax-Sarco Datasheets for Check Valves

Check valves are self-activating safety valves that permit gases and liquids to flow in only one direction, preventing process flow from reversing. They are classified as one-way directional valves. 
Check Valves: Learn more

Product Name Notes
Boiler Feed Check Valve -- DCV3/B Description The Spirax Sarco DCV3/B boiler feed check valve is designed specifically for use on boiler feedwater systems. It is a stainless steel disc check valve with a soft EPDM...
Austenitic Stainless Steel Split Disc Check Valve -- SDCV4 A range of austenitic stainless steel split disc check valves in a wafer pattern suitable for fitting between ASME (ANSI) Class 150 and Class 300, JIS / KS 10K and...
Austenitic Stainless Steel Split Disc Check Valve -- SDCV8 A range of austenitic stainless steel split disc check valves in a wafer pattern suitable for fitting between PN16 and PN40 flanges. Their function is to prevent reverse flow on...
Carbon Steel Split Disc Check Valve -- SDCV3 A range of carbon steel split disc check valves in a wafer pattern suitable for fitting between ASME (ANSI) Class 150 and Class 300, JIS / KS 10K and 20K...
Carbon Steel Split Disc Check Valve -- SDCV7 A range of carbon steel split disc check valves in a wafer pattern suitable for fitting between PN16 and PN40 flanges. Their function is to prevent reverse flow on a...
Disc Check Valve -- DCV8 DCV8 disc check valves are of a wafer pattern, designed to be sandwiched between DIN 2501 and EN 1092 flanges. Their function is to prevent reverse flow on a wide...
Boiler Blowdown Valve -- BCV1
Boiler Blowdown Valve -- BCV2
The BCV1 and BCV20 valves are small bore, normally closed valves with a brass body and corrosion resistant internal components. They are primarily intended for low and medium pressure boiler...
Sanitary Check Valve with Metal Seat -- CVS10
Sanitary Check Valve with Soft Seat -- CVS10
The CVS10 sanitary in-line spring assisted check valve is manufactured from 316L stainless steel and prevents reverse flow in fluid lines. The CVS10 with metal seat is designed for steam...
Disc Check Valve -- DCV1 The DCV1 disc check valve is of the wafer pattern designed to be sandwiched between flanges. It is suitable for use on a wide range of fluids for applications in...
Carbon Steel Centrally Guided Disc Check Valve -- DCV10C
Stainless Steel Centrally Guided Disc Check Valve -- DCV10
The DCV10 (cast stainless steel) and DCV10C (zinc plated cast carbon steel) are wafer pattern disc check valves that have been designed to be sandwiched between flanges for use with...
Disc Check Valve -- DCV3
Disc Check Valve -- DCV3LT
The DCV3 and DCV3LT disc check valves are of the wafer pattern designed to be sandwiched between flanges. They are suitable for use on a wide range of fluids for...
Disc Check Valve -- DCV4 The DCV4 stainless steel disc check valve is of the wafer pattern designed to be sandwiched between ASME flanges. It is suitable for use on a wide range of fluids...
Austenitic Stainless Steel Disc Check Valve -- DCV41 The DCV41 is an austenitic stainless steel disc check valve available with either screwed or socket weld end connections. Its function is to prevent reverse flow on a wide variety...
Disc Check Valve -- DCV6 The DCV6 stainless steel disc check valve is of the wafer pattern designed to be sandwiched between flanges. It is suitable for use on a wide range of fluids for...
Bronze Lift Check Valve -- LCV1 The LCV1 is a bronze lift check valve which is installed in horizontal lines to prevent reverse flow.
Lift Check Valve -- LCV3
Lift Check Valve -- LCV4
Lift Check Valve -- LCV6
Lift Check Valve -- LCV7
The LCV3, LCV4, LCV6 and LCV7 lift check valves are designed in accordance with EN 12516 and ASME B16.34 to prevent reverse flow in the installations. The design of these...
Steam Boiler Blowdown Control Valve -- BCV30 DN20 The Spirax Sarco BCV30 is an electrohydraulically actuated control valve for the blowdown of steam boilers or for other high pressure drop, low flowrate applications. It is generally used with...
Steam Boiler Blowdown Control Valve -- BCV30 DN40 The Spirax Sarco BCV30 is an electrohydraulically actuated control valve for the blowdown of steam boilers or for other high pressure drop, low flowrate applications. It is generally used with...
Steam Boiler Blowdown Control Valve -- BCV31 DN20
Steam Boiler Blowdown Control Valve -- BCV31 DN40
The Spirax Sarco BCV31 is a pneumatically operated control valve for the blowdown of steam boilers. It is normally used with a controller as part of an automatic TDS control...
Vacuum Breaker -- VB14
Vacuum Breaker -- VB21
The Spirax Sarco vacuum breaker range will protect your plant and process equipment against vacuum, and at the same time allow condensate to drain effectively from pipework and storage vessels.
Temperature Cut-out Valve -- TCO1 The TCO1 is a temperature sensitive device fitted downstream of the steam / water mixing valve on ½ " and ¾ " hosedown stations. The TCO1 is only suitable for...
Wafer Check Valve -- WCV1
Wafer Check Valve -- WCV2
Wafer Check Valve -- WCV3
WCV1, WCV2 and WCV3 wafer check valves are designed to be sandwiched between flanges.They are specifically designed for use on applications where there is a high proportion of particles in...