Nitrilc Butadiene Rubber. Trade name: Buna-N. A moderate-service synthetic rubber (polymer) typically used as a seat or o-ring seal in valves because of its abrasion resistance, resistance to degradat [..]

Aluminum Bronze. An alloy containing aluminum and bronze, used in the manufacture of butterfly valve discs. The combination of the two alloys offers moderate corrosion resistance, less weight on the v [..]

Acrylonitrile Butadiene-Styrene. A thermoplastic resin offering excellent corrosion resistance, tensile strength and a temperature rating matching CPVC (180 degrees Fahrenheit). ABS is used to manufac [..]

Brass. An alloy containing a lesser amount of the element, copper as compared to Bronze. As a forging, brass is used to make valve bodies. Other variants of manufacture, including casting, allow broad [..]

Bronze. An alloy containing the element copper. Chiefly used to make valve bodies, it is typically cast into shape. Bronze has moderate corrosion resistance, and excellent high-temperature resistance.

Copper-by-Copper. A general description of both end connections of a fitting or valve, considered to be the abbreviated term for “copper tube size by copper tube size.” Typically used to express a tra [..]

Cast Iron. Describes the material type of certain valve components. Cast iron is comprised of the base element iron, and is mixed with other base elements, which results in the alloy, cast iron. Also [..]

Close. Describes pipe nipple length. A nipple with no space between the pipe threads. Installations using a close nipple bring the two valves or fittings “close” to one another for space-saving reason [..]

Compression. Describes a type of valve or fitting end connection which typically uses two or three components to create the mechanical joint and mechanical seal: A compression nut concentrically compr [..]

Chrome-Plated. Describes the electrostatic or dipped process of applying a chrome finish onto a valve or fitting for purpose of improving appearance or durability. There are two types of final chrome- [..]