Spring Check Valves Series 1000 - Pokorney Manufacturing in Chicago - Vacuum Check Valves Series 3000 with Minimum Pressure Drop, Stainless Steel Trim. Spring Check Valves Series 1000 with Silicone Rubber Seats, Du Not Viton-A Seats, Cast Bronze Globe, He - Pokorney Manufacturing Co. Since 1908

Bronze Spring-Loaded Vacuum Check Valves - Series 1000

Engineered for Precision Service

SILICONE RUBBER SEATS FOR MAXIMUM HEAT RESISTANCE (500°F)
DU PONT VITON-A SEATS FOR MAXIMUM RESISTANCE TO HEAT AND OILS AVAILABLE AT SLIGHT ADDITIONAL COST
CAST BRONZE GLOBE BODIES FOR STRENGTH AND LONG LIFE
CAPS MACHINED FROM HEX BRASS STOCK FOR TIGHT SEAL

Designed for use on air compressors, gas pumps or any application on water, oil, or gas lines where a positive acting, no-leak check valve is required.
Each valve is individually tested after machining to guarantee perfect seating and pipe concentricity.
Special seat discs available for hot water, steam or higher pressure air.
The internal port opening is full pipe size offering no restriction to the passage of air. Valves open on less than 2 p.s.i. and seal tight (zero leakage) against back pressure.

NOTE: Bleeder tapping available on all sizes at slight additional cost by adding "B" to Cat. No. when ordering.

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