Emergency Pressure Vacuum Vent Cover (MODEL:NK-EV31S)

- Pressure Setting : 22mm H2O to 350mm H2O

- Size : 16” through 24”

- Available in Aluminum, Carbon Steel, Stainless Steel.

- Other size and material to be consult by factory.

DESIGN AND FUNCTION

Model NK-EV31 is designed to protect the tank against rupture or explosion that could

result from excessive internal pressures caused by fire etc.

Model NK-EV31 is designed to provide emergency relief capacity beyond that furnished by

the normal operating pressure relief valve on the storage tank.

The feature of Model NK-EV31 is that the pressure relief cover is designed to lift only far

enough to flow its rated capacity should high tank pressure be encountered then reseal

automatically when the tank pressure is reduced.

DRAWING AND DIMENSION