Home / Standard Valves / Check Valves / No. 3385RB Check Valve

No. 3385RB Check Valve


Used for chemical and detergent applications, also including animal and vegetable oils, brake fluid, ketones, ozone & oxidizing chemicals, ammonia, and salt water.

SKU: 3385RB Category: Tags: , ,

Type: Check Valve / Material: 303 Stainless / Seal: EPDM / Fluid Type: Chemicals

303 Stainless Steel Check Valve with EPDM Rubber Poppet

The No. 3385RB Fusion™ 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 EPDM rubber poppet is fully-formed around a solid steel insert to provide greater strength in commercial applications. The patented Fusion™ 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.


Part Number Pipe Size Flow Rate (Cv) Overall Length Valve Diameter Valve Weight
3385RB-025 1/4" 1.1 GPM 2.63" 1.12" 0.45 lb.
3385RB-025M 1/4" MNPT 1.1 GPM 3.83" 1.12" 0.55 lb.
3385RB-038 3/8" 3.1 GPM 2.63" 1.12" 0.45 lb.
3385RB-038M 3/8" MNPT 3.1 GPM 3.83" 1.12" 0.55 lb.
3385RB-050 1/2" 3.8 GPM 2.63" 1.12" 0.40 lb.
3385RB-050M 1/2" MNPT 3.8 GPM 3.83" 1.12" 0.55 lb.
3385RB-075 3/4" 7.4 GPM 3.31" 1.24" 0.55 lb.
3385RB-075M 3/4" MNPT 7.4 GPM 3.83" 1.24" 0.65 lb.
3385RB-100 1" 11.2 GPM 3.69" 1.49" 0.75 lb.
3385RB-100M 1" MNPT 11.2 GPM 4.53" 1.49" 1.00 lb.

Cv is flow (GPM) with a 1 psi differential pressure. Products listed contain NPT end connections. Contact Strataflo for technical specifications if another style of end connection is desired.

Materials & Operational Specifications

Part NameSpecs
Body303 Stainless Steel
Stem303 Stainless Steel
PoppetEPDM Rubber
Spring 302 Stainless Steel
Spring Retainer303 Stainless Steel
Country of OriginMade in the USA
Max. Temperature225°F
Working Pressure3000 psi
Cracking Pressure 1-2 lbs.
Opt. Cracking Pressure 1/2, 5, or 10 lbs.

You may also like…

  • No. 3695RB Check Valve

    Type: Check Valve
    Material: 316 Stainless
    Seal: Viton
    Fluid Types: Chemicals, Drinking Water, Food and Beverage, Fuels, Hydraulic Fluid, Non-Potable Water