Check Valves

CSI stocks a variety of Alfa Laval and TrueClean check valves with specific designs to meet your application needs.

Whether your application requires protection from reverse product flow, pressure surges, or system shutdowns, we have the valve your process line needs. We have valves designed to protect pipelines from corrosion, evacuate lines of product or clean-in-place (CIP) solution, vent air from the system, and thoroughly mix and blend your product. 

Alfa Laval (199)
GEA / Tuchenhagen (4)
Spirax Sarco (10)
SPX / Waukesha (26)
Stainless Products (26)
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TrueClean® (8)
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Air Blow Check Valves (101)
Check Valves (172)
45BYMP Series (15)
62-156 Series (4)
62-174 Series (50)
62-261 Series (14)
62-325 Series (4)
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62-326 Series (18)
62B Series (2)
C45 Series (9)
LKC Series (67)
LKC Series Ultrapure (43)
Varivent (4)
W45 Series (18)
W45BY Series (2)
W45HMP Series (1)
W45VMP Series (1)
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LKC-2 (55)
0.5" (6)
0.75" (5)
1" (19)
1.5" (46)
1.5"-2" (2)
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2" (55)
2.5" (41)
3" (48)
4" (29)
4.5" (11)
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Tri-Clamp (206)
Butt Weld (42)
FNPT (4)
I-Line (1)
304 Stainless Steel (20)
316 Stainless Steel (7)
316L Stainless Steel (222)

  • SPRING CHECK VALVE 2.5" BW 304 EPDM

    $331.59 / EA

  • SPRING CHECK VALVE HORIZONTAL 2.5" TC 316

    $2,824.07 / EA

  • BALL CHECK VALVE 2" TC NYLON

    $1,665.39 / EA

  • SPRING CHECK VALVE 3" BW 316 EPDM

    $514.14 / EA

  • AIR BLOW CHECK VALVE 2" TC 0.75" FPT VITON

    $1,493.11 / EA

  • SPRING CHECK VALVE 2.5" TC VITON

    $452.58 / EA

  • SEAT 3" CHECK VALVE WAUKESHA

    $444.63 / EA

  • AIR BLOW CHECK VALVE 4.5" TC 0.25" MALE QUICK CONNECT EPDM

    $654.00 / EA

  • SPRING CHECK VALVE 1.5" TC VITON

    $346.82 / EA

  • AIR BLOW CHECK VALVE 3" TC 0.5" MALE QUICK CONNECT EPDM

    $582.65 / EA

  • SPRING CHECK VALVE HORIZONTAL 3" TC VITON 316

    $4,723.53 / EA

  • HOSE KIT 0.75" TC 18" OAL FOR TRUE CLEAN CHECK VALVE

    $300.00 / EA