Model No: 140
Discharge to the atmosphere, weight-loaded pallet assembly
Designed for installation on bulk storage tanks, Storagetech’s Model 140 Pressure Relief Valve is designed to protect the tank from excessive internal pressure.
In the closed position, the weighted-loaded pallet and diaphragm assembly are held tightly against a seal to prevent the loss of vapour to the atmosphere. As the internal pressure in the tank increases, due to product filling and vapour development, the pressure in the tank increases, and in the event that the set pressure of the unit is reached, the diaphragm will open and discharge the gas into the atmosphere. The opening set-point is selectable from a range between +2.0 mbar and +60 mbar. (+0.8 inch W.C and +24 inch W.C), and the valve will close when the tank returns to a safe pressure.