Typically used with medium-pressure galvanized iron and steel threaded pipe fittings. Also known as Schedule 80.

Connect these fittings to thick-wall plastic pipe—they have thicker, stronger walls than standard-wall fittings, so they can handle heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation. They can withstand pressures up to 900 psi.

Not only do these PFA fittings have the chemical resistance to handle acid and salt water, they also have better crack resistance than other plastic pipe fittings for chemicals. They are commonly used in high-purity chemical flow processes, such as semiconductor and clean room applications.

Fittings have a hex in the middle so you can tighten with a wrench. Connect them to fire hydrants and washdown equipment.