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)
QSM (23)
Spirax Sarco (10)
SPX / Waukesha (26)
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Stainless Products (26)
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Air Blow Check Valves (93)
Check Valves (195)
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" (8)
0.75" (6)
1" (21)
1.5" (46)
2" (56)
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2.5" (44)
3" (52)
4" (32)
4.5" (11)
6" (2)
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Tri-Clamp (223)
Butt Weld (42)
FNPT (4)
I-Line (1)
304 Stainless Steel (20)
316 Stainless Steel (44)
316L Stainless Steel (174)

  • SPRING CHECK VALVE 3" TC 316L W45 SERIES WAUKESHA

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

    $1,405.00 / EA

  • AIR BLOW CHECK VALVE 2" X 0.375" NPT 316 SS 62B WAUKESHA

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

    $894.96 / EA

  • DISC CHECK VALVE 2.5" TC QSM

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

    $279.27 / EA

  • BALL CHECK VALVE 2" TC WITH AIR BLOW CHECK 2.5" TC

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

    $2,291.21 / EA

  • AIR BLOW CHECK VALVE 2.5" TC 316L EPDM 0.5" FPT SPI SP62C-2.5-0.5-E

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

    $411.50 / EA

  • AIR BLOW CHECK VALVE 4" TC 1" HOSE BARB EPDM

    Springfield, MO 1 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $841.38 / EA

  • AIR BLOW CHECK VALVE 2" TC 0.5" FPT EPDM

    Springfield, MO 1 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $531.06 / EA

  • AIR BLOW CHECK VALVE 2.5" TC 0.75" FPT EPDM

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

    $641.31 / EA

  • AIR BLOW CHECK VALVE 3" TC 0.75" FPT VITON

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

    $1,213.34 / EA

  • BALL CHECK VALVE 0.75" TC BUNA 316L

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

    $1,499.00 / EA

  • SPRING CHECK VALVE 0.5" TC EPDM 316L 15RA ID EP 32RA OD

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

    $1,856.82 / EA

  • DISC CHECK VALVE 0.75" TC VITON SEAL 316L SS QSM

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

    $140.24 / EA