850 SERIES CHECK VALVE

Maximum Operating Pressure — 1200 psi
Maximum Operating Temperature — 180°F
Seat Area Open Diameter — .470

Design Considerations

The 850 Series Poppet Check Valve incorporates an o-ring that is captured in a brass poppet to seal on a brass seat in the check valve body. The poppet style is an economical, general use design that provides a positive seal down to about 1/2 psi back pressure. The maximum operating pressure is 1200 psi. UL / UR configurations are available and rated to 500 psi.

Options

Material Options	Brass Body, Poppet and Stop
Seal Options	Buna-N, Ethylene Propylene, Fluoroelastomer (Viton®), Neoprene
Body Options	1/2 FNPT Inlet x 1/2 FNPT Outlet
Cracking Pressure	302 Stainless Spring – 1 psi (Standard), 3, 5 psi, No Spring
Plating Options	No Plating (Standard), Electroless Nickel

Example of how to order

Inlet End
1/2 FNPT

Outlet End
1/2 FNPT

Seal
Viton®

Spring
1 psi

Plating
None

SMC Part Number: CHK BRS 850-8F8F-F

The flow arrow on the body will point from Inlet to Outlet. SMC Part Numbers are a description of the valve as read left to right, Inlet to Outlet.
Example: CHK BRS 850-8F8F-F = 1/2 FNPT Inlet x 1/2 FNPT Outlet

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