LAFFERTY - USA
Chemical Check Valve, PP, EPDM, 1/4 inch
Item no. P7 491311
Genuine Lafferty chemical check valve with a polypropylene body and EPDM seal. It is the standard chemical check valve on most Lafferty foamers. It sits where the chemical line meets the foamer body and lets chemical flow one way only, so the line stays primed and water cannot push back into your drum. A worn or sticking check valve is a common reason a foamer loses its draw or gives an uneven mix.
Key specifications
- Seals EPDM
- Size 0.64 cm (1/4 inch) fitting
- Body Polypropylene
- Fits 915105-G, 915615, 916105-G, 916635, 969937, 970550, 975075DBM
Made to order, about 3 to 4 weeks

Application fields
Product information
EPDM suits most detergents, alkaline cleaners, chlorinated and sanitising products. For acids and solvents use the VITON version, Lafferty 491315. Confirm your chemical against its SDS.
Fits the HV Foamer, Drum Mount HV Foamer, A-50, A-25 drum bung foamer and Model 251, plus the LC and LCSS foamers.
Technical details
- Brand
- LAFFERTY
- Item number
- P7 491311
- Lafferty Part No.
- 491311
- Body
- Polypropylene
- Seal
- EPDM
- Size
- 0.64 cm (1/4 inch) fitting
- VITON Version
- Lafferty 491315
- Fits
- 915105-G, 915615, 916105-G, 916635, 969937, 970550, 975075DBM