Designed with ¼ in. inlet and three ¼ in. outlet ports, T39 Series allows precise downstream industrial gas regulation. There are 6 spring pressure ranges from 0–30 psig to 0–225 psig, and seat material choices are available to fit specific applications. Construction includes brass bonny, bonnet, and bonnet plug; 302 stainless steel diaphragms; and electroless nickel and stainless steel housings. To provide fresh valve disk sealing surface, 4-seat valve disc block can be rotated 90°.