Check Valves

Alfa Laval (147)
QSM (23)
Spirax Sarco (10)
Stainless Products (26)
Air Blow Check Valves (91)
Check Valves (115)
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)
C45 Series (9)
LKC Series (58)
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LKC-2 (58)
0.5" (8)
0.75" (6)
1" (12)
1.5" (32)
2" (39)
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2.5" (33)
3" (36)
4" (20)
4.5" (11)
6" (2)
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Tri-Clamp (173)
Butt Weld (20)
FNPT (4)
304 Stainless Steel (16)
316 Stainless Steel (75)
316L Stainless Steel (71)

  • DISC CHECK VALVE 1.5" TC EPDM SEAL 316L QSM

    Springfield, MO 0 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $263.25 / EA

  • DISC CHECK VALVE 2" TC EPDM SEAL 316L QSM

    Springfield, MO 0 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $285.55 / EA

  • DISC CHECK VALVE 6" TC VITON SEAL 316L QSM

    Springfield, MO 0 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $3,292.69 / EA

  • SPRING CHECK VALVE 51MM 1.5" TC EPDM ISO 316 MILL FINISH

    Springfield, MO 0 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $279.48 / EA

  • SPRING CHECK VALVE 3" TC VITON

    Springfield, MO 0 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $622.34 / EA

  • SPRING CHECK VALVE 1" BW 304 EPDM

    Springfield, MO 0 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $259.06 / EA

  • SPRING CHECK VALVE 38MM 1.5" BW EPDM ISO 316 MILL FINISH

    Springfield, MO 0 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $188.96 / EA

  • SPRING CHECK VALVE SPRING 4" BW 316 EPDM

    Springfield, MO 0 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $856.70 / EA

  • SPRING CHECK VALVE 63.5 MM 2.5" BW EPDM ISO 316 MILL FINISH

    Springfield, MO 0 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $290.45 / EA

  • SPRING CHECK VALVE HORIZONTAL 1.5" TC 316

    Springfield, MO 0 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $2,293.77 / EA

  • SPRING CHECK VALVE HORIZONTAL 3" TC VITON 316

    Springfield, MO 0 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $4,723.53 / EA

  • CHECK VALVE 1.5" 100 PSIG CVS10 SPIRAX SARCO

    Springfield, MO 0 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $1,832.00 / EA

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.