These DZR (Dezincification Brass) gate valves are manufactured to conform to BS5154. The body, wedge, stem and bonnet are manufactured from DZR brass, stem packing is PTFE and handwheel is cast iron. The female threads are BSPT (ISO 7/1)
These valves have maximum working pressure of 20 bar at 100°C and 5 bar at 180°C. The working temperature range is -10°C to +180°C in the absence of ice.