Pressure Relief Valves
Floor Type—Floor type hydrostatic pressure relief valves are designed to be installed in the bottom of concrete tanks. They are designed so that neither the cover or grate can become separated from the body of the valve, due to groundwater pressure around the tank. However, when necessary, both may be easily removed by turning them to the right or left to free them from locking lugs cast integrally on the inside of the body.
Wall Type—Wall type valves unseat and swing open under unseating pressure to release the outfall fluid, and close when pressure is relieved.
