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Check Valves

Check Valves

Check valves are mechanical valves that perform by allowing gases and liquids to flow in a unidirectional manner. They are designed to open when the fluid / gas flow is in the desired direction, and automatically close when there is a flow in the opposite direction. These unidirectional valves serve a variety of purposes and can be used in different industries & at different temperatures:

  • Swing Valve > offers a larger pressure drop compared to others
  • Ball Valve > largely used to move fluids
  • Split Disc > useful for applications requiring low pressure drops, large check valves, low operating pressures, various positions
  • Diaphragm > made of material that can\'t sustain extreme temperatures (not for wide range of applications)
  • Wafer Valve > sleek design

Evergreen Midwest’s check valves provide leak-proof, tight sealing protection against flow direction change. Users can select an appropriate check valve after reviewing the options available. 

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Check Valves - Unidirectional - Evergreen Midwest

Showing 61-80 of 97 items

Set Descending Direction
Product SKU DESCRIPTION MANUFACTURER
cw CW250BL Two Piece Brass Check Valve, Soft Seat, CAR WASH INDUSTRY 1/4" NPTF E/E, 2000 PSI, Cracking Pressure 5 PSI, Viton O-Ring Rego
cw CW250SSL Two Piece Stainless Steel Check Valve w/ Soft Seat, CAR WASH INDUSTRY, 1/4" NPTF E/E, 2000 PSI, Cracking Pressure 5 PSI, Viton O-Ring Rego
cw CW375BL Two Piece Brass Check Valve w Soft Seat, CAR WASH INDUSTRY, 3/8" NPTF E/E, 2000 PSI, Cracking Pressure 5 PSI, Viton O-Ring Rego
1 CW375SSL Two Piece Stainless Steel Check Valve w Soft Seat, CAR WASH INDUSTRY, 3/8" NPTF E/E, 2000 PSI, Cracking Pressure 5 PSI, Viton O-Ring Rego
4 NG301 In-Line ⅛” Ball Check Valve Rego
Express Flow 3/8” LNG NG303 Express Flow 3/8” LNG Rego
2 NG304 In-line ½” Fill Check Valve Rego
S-886-32W3J S-886-32W3J 4" BUTT WELD Goddard
S-886GF-12S S-886GF-12S 1-1/2" SOCKET WELD Goddard
S-886GF-4S S-886GF-4S 1/2" SOCKET WELD Goddard
S-886GF-6S S-886GF-6S 3/4" SOCKET WELD Goddard
S-886GF-8S S-886GF-8S 1" SOCKET WELD Goddard
S-886M-12S3 S-886M-12S3 1-1/2" SOCKET WELD Goddard
S-886M-16W3A S-886M-16W3A 2" BUTT WELD Goddard
S-886M-24W3A S-886M-24W3A 3" BUTT WELD Goddard
S-886M-24W3J S-886M-24W3J 3" BUTT WELD Goddard
S-886M-32W3J S-886M-32W3J 4" BUTT WELD Goddard
S-886M-32WA S-886M-32WA 4" BUTT WELD Goddard
S-886M-4S3 S-886M-4S3 1/2" SOCKET WELD Goddard
S-886M-8S3 S-886M-8S3 1" SOCKET WELD Goddard
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