410 SERIES CHECK VALVE

Maximum Operating Pressure — 500 psi
Maximum Operating Temperature — 180°F
Seat Area Open Diameter — .203

Design Considerations

The 410 Series Piston Check Valve incorporates a piston with an embedded o-ring that seals on the seat. Pressure in the flow direction moves the piston and seal off the seat and exposes the cross holes in the piston. The 410 Series Check Valve maximum operating pressure of 500 psi covers a wide range of air and fluid applications. The 410 Check is a compact design and has a positive seal at very low back pressure or slight vacuum. UL / UR configurations are available and rated to 500 psi.

Options

Material Options	Brass Body and Piston, Beryllium Copper Retainer 316 Stainless Body and Piston, 15-7 Stainless Retainer
Seal Options	Buna-N, Ethylene Propylene, Fluoroelastomer (Viton®) Neoprene, AFLAS, Perfluoro Elastomer
Brass End Options	1/4 MNPT Inlet x 1/4 MNPT Outlet 1/4 FNPT Inlet x 1/4 MNPT Outlet 1/4 MNPT Inlet x 1/4 FNPT Outlet 5/16 Hose Barb x 5/16 Hose Barb
Stainlees End Options	1/4 MNPT Inlet x 1/4 MNPT Outlet 1/4 FNPT Inlet x 1/4 MNPT Outlet 1/4 MNPT Inlet x 1/4 FNPT Outlet 1/4 MNPT Inlet x 1/4 MNPT Outlet 1/4 Male Flare x 1/4 Male Flare
Cracking Pressure	302 Stainless Spring - 1 psi (Standard), 3, 5, 9, 15, 20, 25 psi, No Spring Hastelloy Spring - 1, 3, 15, 25 psi
Plating Options	No Plating (Standard), Electroless Nickel

Example of how to order

Body Material
Stainless

Inlet End
1/4 FNPT

Outlet End
1/4 MNPT

Spring
3 psi, Hastelloy

Plating
None

SMC Part Number: CHK SST 410-4F4M-F,3#, HAST

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 SST 410-4F4M-F,3#, HAST = 1/4 FNPT Inlet x 1/4 MNPT Outlet