Specifications
- Protects against over pressure
- Minimizes hammering with flash steam
- Low differential pressure - 3 psi (.21 kg/cm2) between opening and closing
- Meets ASME Pressure Vessel and Boiler Code, Section IV
- Sizes and material:
3/4" - 1" NPT - bronze body and seat
2" NPT - cast iron body, brass seat - EPDM rubber diaphragm and seat disc
- Maximum temperature 250 Deg. F (121 Deg. C)
- Maximum operating pressure range 30 - 125 psig (2.1 - 8.8 kg/cm2)