1. Size: 1/2"-4" 2. Pressure: 1.6 Mpa - 2.0Mpa 3. Thread: NPT, BSP, BSPT 4. Material: Brass body, Brass bonnet, Brass stem, PTFE seal, brass gland, brass nut, steel handle. 5. Working Medium: Water, oil, gas 6. Working temperature: -20°C ~120°C