Model 142 Top-mounted, removable, spring-operated pressure relief valve Gases / Liquids
Safety · Pressure-Vacuum Valves
Designed for installation on bulk storage tanks, the Storagetech Model 142 pressure relief valve is engineered to protect the tank against excessive internal pressure. In the closed position, the pressure relief pallet and diaphragm assembly are held tightly against a seal to prevent vapor loss to the atmosphere. As the internal tank pressure increases due to product filling and vapor generation, and when the unit set pressure is reached, the diaphragm opens and releases gas to the atmosphere. The opening set point can be selected within a range between +61 mbar and +1000 mbar (+24 in. W.C. and 400 in. W.C.), and the valve will close when the tank returns to a safe pressure. Several design features ensure smooth, positive, and efficient operation. The body is self-draining and drip rings prevent condensate from collecting on seating surfaces. A Teflon diaphragm and gasket reduce the possibility of icing and sticky deposits that could prevent valve opening, while the pallet assembly moves freely along the guide posts.
