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 (198)
GEA / Tuchenhagen (4)
QSM (23)
Spirax Sarco (10)
SPX / Waukesha (26)
Show more
Stainless Products (26)
Show less
Air Blow Check Valves (93)
Check Valves (189)
Seat Valves (5)
45BYMP Series (15)
62-156 Series (4)
62-174 Series (50)
62-261 Series (14)
62-325 Series (4)
Show more
62-326 Series (18)
62B Series (2)
C45 Series (9)
LKC Series (66)
LKC Series Ultrapure (43)
Varivent (1)
W45 Series (18)
W45BY Series (2)
W45HMP Series (1)
W45VMP Series (1)
W60 Series (1)
Show less
LKC-2 (55)
W61 (1)
0.5" (8)
0.75" (6)
1" (21)
1.5" (45)
2" (56)
Show more
2.5" (44)
3" (51)
4" (32)
4.5" (11)
6" (2)
Show less
Tri-Clamp (222)
Butt Weld (42)
FNPT (4)
I-Line (1)
304 Stainless Steel (20)
316 Stainless Steel (44)
316L Stainless Steel (173)

  • SPRING CHECK VALVE 2" TC 316 EPDM

    Springfield, MO 21 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 3 EA

    $451.06 / EA

  • SPRING CHECK VALVE 3" TC 316 EPDM

    Springfield, MO 5 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 2 EA

    $760.10 / EA

  • SPRING CHECK VALVE 1.5" TC 316 EPDM

    Springfield, MO 3 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 9 EA

    $384.62 / EA

  • BALL CHECK VALVE 2" TC BUNA

    Springfield, MO 4 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $1,616.80 / EA

  • SPRING CHECK VALVE 2.5" TC 316 EPDM

    Springfield, MO 2 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 3 EA

    $617.77 / EA

  • AIR BLOW CHECK VALVE BODY ASSEMBLY 2" TC NO AIR CONNECT EPDM

    Springfield, MO 7 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $266.14 / EA

  • SPRING CHECK VALVE 2" TC 304 EPDM

    Springfield, MO 0 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 8 EA

    $420.89 / EA

  • SPRING CHECK VALVE 2" TC 316 VITON

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

    $490.07 / EA

  • SPRING CHECK VALVE 1.5" 316 VITON

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

    $419.67 / EA

  • AIR BLOW CHECK VALVE BODY ASSEMBLY 1.5" TC NO AIR CONNECT EPDM

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

    $211.15 / EA

  • AIR BLOW CHECK VALVE BODY ASSEMBLY 3" TC NO AIR CONNECT EPDM

    Springfield, MO 0 EA
    Durham, NC 2 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $514.07 / EA

  • SPRING CHECK VALVE 1" TC 316 EPDM

    Springfield, MO 2 EA
    Durham, NC 0 EA
    Modesto, CA 0 EA
    Grand Prairie, TX 0 EA

    $325.49 / EA