No. 3395

Stainless Steel with Viton Rubber Poppet


The No. 3395 check valve is made of a one-piece cast stainless steel body, with all internal components also of stainless steel. Designed to operate in any position, a sensitive spring has been added to close the poppet automatically. The rubber poppet is fully-formed around a solid steel insert to provide greater strength in commercial applications. Each valve is tested twice for casting integrity and backflow prevention. All valves are 100% American-Made and built to last.


Used for food and beverage, biodiesel, or where resistance is needed for aggressive fuels and chemicals. Also where excellent heat stability is required. Rated for temperatures up to 350°F. Not for steam use.

Flow Rate (Cv)
Size GPM
3/4" 5
1" 8
1-1/4" 24
1-1/2" 37
2" 44

Cv is flow (GPM) with a 1 psi differential pressure.

Material Specifications
Part Name Material
Body Cast Stainless CF16Fa (303)
Stem 303 Stainless Steel
Poppet Viton Rubber
Spring 302 Stainless Steel
Cup Washer 304 Stainless Steel
Locknut 18/8 Stainless Steel
Country of Origin Made in the USA

Operational Specifications
Max. Temperature 350°F
Working Pressure 600 psi
Cracking Pressure 1-2 lbs.
Opt. Cracking Pressure 1/2, 5, or 10 lbs.

Pipe Size Part Number Overall Length Valve Diameter Valve Weight
3/4" 3395-075 3.31" 1.62" 0.80 lb.
1" 3395-100 3.69" 2.00" 1.30 lbs.
1-1/4" 3395-125 4.57" 2.41" 1.95 lbs.
1-1/2" 3395-150 4.88" 2.69" 2.35 lbs.
2" 3395-200 5.56" 3.34" 3.65 lbs.

NPT threaded.


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