Flomatic 4171SS 333SS 1" Stainless-Steel Foot Valve

The Flomatic 4171SS 1" 333SS stainless-steel foot valve is a compact, corrosion-resistant valve designed to help maintain pump prime, prevent backflow, and protect suction lines from debris. This model features an all 304 stainless-steel body with a high-strength acetal poppet, tapered stainless-steel strainer, stainless-steel end cap, spring, and fasteners, and a Nitrile (Buna-N) seal. It is rated for a maximum working pressure of 250 psi and a maximum temperature of 180°F (80°C).

Specifications:

Max Pressure: 250 psi

Max Temperature: 180°F (80°C)

Body: 304 stainless-steel

Poppet: High-strength acetal

Seal: Nitrile (Buna-N)

Spring: Stainless-steel

Strainer: Tapered stainless-steel

Fasteners and End Cap: Stainless-steel

Connection: 1" FNPT threaded (ANSI B1.20.1)

Weight: 0.6 lbs

Case Quantity: 50

Operation: The 333SS foot valve is installed at the end of a suction line to help maintain pump prime and reduce reverse flow when the pump stops. The internal poppet closes quickly as flow reverses, helping to minimize backflow while the tapered stainless-steel strainer keeps larger debris from entering the suction piping.

Construction: An all 304 stainless-steel body, end cap, spring, fasteners, and strainer provide excellent corrosion resistance for potable water and many light industrial applications. The high-strength acetal poppet offers a durable seating surface, and the tapered strainer design provides a large open flow area to limit head loss while still protecting the pump.

Applications: Residential and light commercial wells, irrigation and water transfer systems, and other installations where a compact stainless-steel foot valve is required to help maintain prime and protect against backflow and debris.