EMERGENCY PRESSURE/VACUUM RELIEF VALVE

EMERGENCY PRESSURE/VACUUM RELIEF VALVE

finekay Series 8170 Manhole Cover with pressure and vacuum relief, provides both emergency pressure relief and vacuum relief when installed on the manhole of a storage tank. In emergency situations (external fire involvement of the tank), normal venting devices may be too small to prevent over-pressurization of the tank. The Series 8170 provides the necessary pressure relief capacity to maintain the tank in a safe operating range. The integral vacuum vent provides
additional protection against tank collapse due to excessive vacuum in the vapor space.

Structure Features

1.Sizes 16",20"and 24";

2.Available in carbon steel, stainless steel and other materials;

3.The flanges of inlet and outlet are ANSI B16.5 150Lb RF.(It can be required by user).

4.attains full stable lift at only 10% overpressure