Body, spindle and flange are made of stainless steel AISI316L. Supplied with FPM/FKM (Viton®) O-ring and PVDF gasket. Handwheel: Nylon 6.6 Lock nut: Nickel plated brass Dimensions: ¼” and ½” parallel pipe thread. Working pressure: Maximum 250 bar Working temperature. Maximum 200° C