No. 3395RB

303 Stainless Steel with Viton Rubber Poppet


The No. 3395RB check valve is made from solid stainless steel bar, 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. The patent pending valve design offers flexibility in configuring the end connections, with selections from pipe threads to hydraulic connections to hose barbs. All valves are 100% American-Made and built to last. Contact Strataflo now to see how this product can be customized for your application.


Used for food and beverage, biodiesel, hydraulic and pneumatic applications, or where resistance is needed for aggressive fuels and chemicals. Also where excellent heat stability is required. Rated for temperatures up to 300°F. Not for steam use.

Flow Rate (Cv)
Size GPM
1/4" 1.1
3/8" 3.9
1/2" 4.3
3/4" 9.0
1" 11.9

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

Material Specifications
Part Name Material
Body 303 Stainless Steel
Stem 303 Stainless Steel
Poppet Viton Rubber
Spring 302 Stainless Steel
Spring Retainer 303 Stainless Steel
Country of Origin Made in the USA

Operational Specifications
Max. Temperature 300°F
Working Pressure 3000 psi
Cracking Pressure 1-2 lbs.
Opt. Cracking Pressure 1/2, 5, or 10 lbs.

Pipe Size Part Number Over-all Length Valve Diameter Valve Weight
1/4" 3395RB-025 2.63" 1.12" 0.45 lb.
1/4" MNPT 3395RB-025M 3.83" 1.12" 0.55 lb.
3/8" 3395RB-038 2.63" 1.12" 0.45 lb.
3/8" MNPT 3395RB-038M 3.83" 1.12" 0.55 lb.
1/2" 3395RB-050 2.63" 1.12" 0.40 lb.
1/2" MNPT 3395RB-050M 3.83" 1.12" 0.55 lb.
3/4" 3395RB-075 3.31" 1.24" 0.55 lb.
3/4" MNPT 3395RB-075M 3.83" 1.24" 0.65 lb.
1" 3395RB-100 3.69" 1.45" 0.75 lb.
1" MNPT 3395RB-100M 4.53" 1.45" 1.00 lb.

Products listed contain NPT end connections. Contact Strataflo for technical specifications if another style of end connection is desired.


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