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

Watts 0061983 3/4" Vacuum Breaker This 3/4 inch hose connection vacuum breaker permits the attachment of portable hoses to hose thread faucets and prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of a brass body construction, stainless steel working parts, a rubber diaphragm and disc, a draining stem, and a break-away set screw for tamper resistant installations. It is ideal for inside and outside, health hazard installations requiring non-continuous pressure such as service sinks, swimming pools, photo developing ...

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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

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.

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 ...