4" Socket Gray PVC True Union Check Valve with FKM O-Ring (3" FNPT; 4" Flow)
$361.43
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4" Socket Gray PVC True Union Check Valve with FKM O-Ring (3" FNPT; 4" Flow)
$361.43
4" Socket Gray PVC True Union Check Valve with FKM O-Ring (3" FNPT; 4" Flow).
Supplier item: 20437
Sold by: Each
- Rugged PVC construction for durability
- O-rings available in EPDM or FKM for chemical compatibility
- 20370 & 20437 have Venturi-style body: 3" FNPT, but oversized 4" flow capacity
- 1/2" to 2" include socket/threaded ends; 2-1/2" to 4" are socket or threaded
- Double union design for easy installation & service
- Foot valve screen end connector included
- Fully rebuildable design
- Excellent resistance to many inorganic chemicals
- Max. working temperature: 140°F
- Minimum return pressure: 3 psi
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