Hoffman # 78 401485

Description

The Hoffman Model 78 Part No. 401485 Water Main Vent Valve:For use on high pressure hot or cold water or glycol mains and process applications with specific gravity greater than 0.7.Maximum operating pressure 150 psig (10.3 bar)(Drop away pressure - maximum pressure against which the vent can open).Maximum hydrostatic pressure 450 psig (31.1 bar).Maximum temperature 250°F (121°C).