Poppet Check Valve 685 Series 1/2 FPT PP Buna, Rugged No Nonsense Heavy Duty Plastic Valve That Halts Backflow, Elastomer Disc Seals Tight, Built To Last For Fluid Transfer, Irrigation, And Industrial Systems

Inline 1/2 in Poppet Check Valve, single unit with PP Buna seals
✔️ 1/2 in NPT inlet/outlet, Buna elastomer seal, 125 psi max

The 685 Series inline Poppet Check Valve is a compact backflow-prevention valve built from polypropylene with a Buna elastomer disc. It’s designed for inline piping in irrigation, fluid transfer, and industrial systems, delivering reliable sealing and flow control at low back pressure.

✅ Inlet x Outlet: 1/2 in Female NPT x 1/2 in Female NPT
✅ Material: PP body and poppet with Buna elastomer seal
✅ Max operating pressure: 125 psi
✅ Cracking pressure: 1/3 psi with stainless spring (custom options available)
✅ Color: Black body, White seal (Buna)

💡 What is a poppet check valve used for in irrigation and industrial fluid systems?

Handy inline valve that prevents reverse flow and protects downstream equipment.

- Backflow prevention for irrigation and fluid transfer lines - Inline 1/2 in NPT connections for easy mounting - PP body with Buna elastomer disc for chemical compatibility - 125 psi max pressure, 1/3 psi cracking pressure ✝️