Material: 58-2, CW617, 59-1, DR
With/without nickle plated
brass press fitting coupling (union) is made of brass body,EDPM seal rings,stainless steel SUS 304 sleeve and plastic ring.
Brass body material can be CW617N, CW602N, Hpb59-1, Hpb58-2, Hpb58-3, etc;brass body superficial treatment can be tin-plating and nickel-plating.
Two sides with SUS304 sleeve can connect the same size pipe by pressing of jaw to unite pipes together.
Production process: cutting brass bar ino different sections according to diferent product-----heating these sections in intermediate frequency furnace-----hot stamping-----cutting burr-----shot blast and shot penning-----mechanizing by meter lath and CNC-----inspecting 100%-----assembling-----testing and packing.
Special design assures 100% safety after assembling EDPM seal rings, SUS304 sleeve and multilayer pipes.