SMC 815 Series 1/2" Brass Check Valves

The 815 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 flow arrow on the body will point from inlet to outlet.

Brass body & piston
Viton™, Buna-N, or EPDM seals
Beryllium copper retainer
Good for a wide range of air & fluid applications
0.437" diameter through-hole in the ball
Positive seal at low back pressure or slight vacuum
Cracking pressure: 1/3 psi or 1 psi
Maximum pressure: 500 psi
Maximum temperature: 250°F (Buna-N), 300°F (EPDM) & 375°F (Viton™)

Item #	Description	Catalog Pg.	Price
Item 22433	1/2" FNPT x 1/2" FNPT Series 815 Brass Check Valve with Buna-N Seals - 1 PSI 27.39/Each Out of Stock (On Order) Save 5% when you buy 10+ Save 10% when you buy 20+ Save 15% when you buy 60+	Internet Only	27.39/Each Out of Stock (On Order)
Item 22434	1/2" FNPT x 1/2" FNPT Series 815 Brass Check Valve with Buna-N Seals - 1/3 PSI 27.39/Each In Stock Save 5% when you buy 10+ Save 10% when you buy 20+ Save 15% when you buy 60+	Internet Only	27.39/Each In Stock
Item 22435	1/2" FNPT x 1/2" FNPT Series 815 Brass Check Valve with EPDM Seals - 1 PSI 28.75/Each Special Order Save 5% when you buy 10+ Save 10% when you buy 20+ Save 15% when you buy 60+	Internet Only	28.75/Each Special Order
Item 22436	1/2" FNPT x 1/2" FNPT Series 815 Brass Check Valve with Viton™ Seals - 1 PSI 28.75/Each Out of Stock (On Order) Save 5% when you buy 10+ Save 10% when you buy 20+ Save 15% when you buy 60+	Internet Only	28.75/Each Out of Stock (On Order)
Item 22437	1/2" FNPT x 1/2" FNPT Series 815 Brass Check Valve with Viton™ Seals - 1/3 PSI 28.75/Each In Stock Save 5% when you buy 10+ Save 10% when you buy 20+ Save 15% when you buy 60+	Internet Only	28.75/Each In Stock

SMC 815 Series 1/2" Brass Check Valves

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