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Injection Check Valve

 

Injection check valves can be added to any chemical injector or diffuser. The addition of a check valve will eliminate backflow into a chemical feed system. Spring loaded ball check valves are available depending on the size. Check valve seats are availalbe in Viton or EPDM.

Check Valve accessory

Threaded SS Spring Loaded
for 3/4" solution tube and larger

FNPT x FNPT

Socket Welded Spring Loaded
Ball Check Valve

for 3/8" and 1/2" solution tube

1/2" MNPT x Socket

True Union Ball Check Valve
for 3/4" solution tube and larger

Socket x Socket

 

The chart below is also available as PDF file.   Check Valve Repair Kits

3/8" Check Valve Repair Kits for use with the following series: EB-120, EB-125, EB-145, EB-162, EB-163, EB-168
Each kit contains: (2) O-ring Seals, Spring, and Teflon Ball

Item No. Seal Type Spring Type
CRK-038-V-H-1 Viton Hastelloy®
CRK-038-E-H-1 EPDM Hastelloy®
CRK-038-K-H-1 Kalrez® Hastelloy®
CRK-038-V-A-1 EPDM Alloy 20
CRK-038-E-A-1 Viton Alloy 20
CRK-038-K-A-1 Kalrez® Alloy 20
CRK-038-V-S-1 Viton Stainless Steel
CRK-038-E-S-1 EPDM Stainless Steel
CRK-038-K-S-1 Kalrez® Stainless Steel

1/2" Check Valve Repair Kits for use with the following series: EB-146, EB-155, EB-164
Each kit contains: (2) O-ring Seals, Spring, and Teflon Ball

Item No. Seal Type Spring Type
CRK-050-V-H-1 Viton Hastelloy®
CRK-050-E-H-1 EPDM Hastelloy®
CRK-050-K-H-1 Kalrez® Hastelloy®
CRK-050-V-A-1 EPDM Alloy 20
CRK-050-E-A-1 Viton Alloy 20
CRK-050-K-A-1 Kalrez® Alloy 20
CRK-050-V-S-1 Viton Stainless Steel
CRK-050-E-S-1 EPDM Stainless Steel
CRK-050-K-S-1 Kalrez® Stainless Steel
 
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