Coupling for High Pressure Cleaning Machine with Brass, Stainless Steel, Iron material. Fittings include welding, card sets and flared, Male Coupling Connector Type: End through connector, straight connectors, tees, elbows, with live nut joints, Swivel joints, plug, transition joints Composed of dual ferrule fittings: Before the snap ring, after the snap ring nut Materials commonly used are stainless steel and carbon steel NPT, PT, G is the pipe thread. NPT is National (American) Pipe Thread abbreviation belong American standard tapered pipe thread 60 degree, for North America. National standards can be found GB / T12716-1991 Pipe Thread PT is an abbreviation, is 55 degrees sealing cone pipe thread, is a Whitworth thread family, more for Europe and the Commonwealth countries. Commonly used in water and gas pipe industry, defined as 1:16 taper. National standards can be found GB / T7306-2000 G is 55 degrees non-thread sealing pipe thread, is a Whitworth thread family. G represents a threaded barrel mark. National standards can be found GB / T7307-2001 Also thread 1 / 4,1 / 2,1 / 8 mark refers to the thread diameter in inches. Insiders usually points to refer to the thread size, one inch equals 8 points, 1/4-inch is 2 points, and so on. G is the pipe thread collectively (Guan), divided into 55, 60 degrees are functional, commonly known as a round tube. That thread processing is made by a cylindrical surface. ZG commonly known as the funnel, that thread processing by a conical surface made of pipe joints in general are like this, the old domestic thread standard male thread Rc labeled as R
