695 BALL CHECK VALVE

Maximum Operating Pressure — 125 psi
Maximum Operating Temperature — 140°F
Seat Area Open Diameter — .160

Design Considerations

The 695 Series Ball Check Valve incorporates a stainless ball that seals on an o-ring seat. The 695 Series Check Valve maximum operating pressure of 125 psi covers a wide range of air and fluid applications. The 695 Check is a compact design with a light cracking pressure and a positive seal at low back pressure.

Options

Material Options Polypropylene Body and End, White Nylon Body and End, Black PVDF (Kynar®) Body and End

Seal Options Buna-N, Ethylene Propylene, Fluoroelastomer (Viton®)

Inlet Options 1/8, 3/16, 1/4 Hose Barb, 1/4 BIB (Smooth Barb)

Outlet Options 1/8 Male NPT, 1/8, 3/16, 1/4 Hose Barb, 1/4 BIB (Smooth Barb)

Cracking Pressure 302 Stainless Spring - 1/2 psi, 1 psi (Standard), 2, 3 psi, No Spring, Hastelloy Spring - 1 psi

Ball Material 316 Stainless (Standard with Stainless Spring), Teflon (Standard with Hastelloy Spring)

Example of how to order

Body:
White Nylon

Inlet End
1/4 Barb

Outlet End
1/4 Barb

Seal
Viton®

Spring
1 psi

SMC Part Number: WN CHK 695-4B4B-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: WN CHK 695-4B4B-F = 1/4 BARB Inlet x 1/4 BARB Outlet