No. 3640RB

316 Stainless Steel with Stainless Poppet

Description

The No. 3640RB check valve is made from solid 316 stainless steel bar, with all internal components also of 316 stainless steel. The proprietary stainless steel poppets are finely machined for a metal-to-metal seal. Designed to operate in any position, a sensitive spring has been added to close the poppet automatically. 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.

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. Steam 125 lbs.

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 316 Stainless Steel
Stem 316 Stainless Steel
Poppet 316 Stainless Steel
Spring 316 Stainless Steel
Spring Retainer 316 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.

Dimensions
Pipe Size Part Number Over-all Length Valve Diameter Valve Weight
1/4" 3640RB-025 2.63" 1.12" 0.45 lb.
1/4" MNPT 3640RB-025M 3.83" 1.12" 0.55 lb.
3/8" 3640RB-038 2.63" 1.12" 0.45 lb.
3/8" MNPT 3640RB-038M 3.83" 1.12" 0.55 lb.
1/2" 3640RB-050 2.63" 1.12" 0.40 lb.
1/2" MNPT 3640RB-050M 3.83" 1.12" 0.55 lb.
3/4" 3640RB-075 3.31" 1.24" 0.55 lb.
3/4" MNPT 3640RB-075M 3.83" 1.24" 0.65 lb.
1" 3640RB-100 3.69" 1.45" 0.75 lb.
1" MNPT 3640RB-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.

Notes

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