1" FNPT Brass Check Valve with Buna-S Rubber Poppet

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Check valves are mechanical valves that permit gases and liquids to flow in only one direction, preventing flow from reversing. They are classified as one-way directional valves. Fluid/gas flow in the desired direction opens the valve, while backflow forces the valve closed

Watts 0792078 3/4" Dual Check Valve This 3/8 inch dual check valve prevents the reverse flow of polluted water from entering into the drinking water supply at the service entrance or at individual outlets. It is designed for in-line continuous pressure applications, such as wash-down sinks or other installations, where a hose type device connected to the domestic water supply can be submerged into a non-potable liquid. It consists of a chrome-nickel plated lead free brass body, 3/4 inch female hose threaded inlet and male hose threaded outlet, two plastic replaceable check valves, Buna-N ...

2" FNPT In-Line Brass Check Valve with Stainless Steel Poppet. The Model 400 uses a stainless steel poppet for a metal-to-metal seal without the use of an o-ring and is best suited for heavy industrial usage. Product is Made in the USA. Maximum working pressure 200 psi, Maximum temperature 300°F, Cracking pressure 1-2 lbs. Use with hot water, cold water, steam, oil, gas, compounds, chemicals. Not for air compressor use.

3/4" FNPT In-Line Nickel-Plated Brass Check Valve with Stainless Steel Poppet. The Model 2400 uses a stainless steel poppet for a metal-to-metal seal without the use of an o-ring. It also features a nickel-plated valve body inside and out, with all internal components of stainless steel. Product is Made in the USA. Maximum working pressure 200 psi, Maximum temperature 300°F, Cracking pressure 1-2 lbs. For use in food and beverage applications, steam, and biodiesel. Not for air compressor use.