Floor Type Pressure Relief Valves

A rubber epdm to metal seal is accomplished when the cover is in the closed position metal face is coated with epoxy paint.

Floor type pressure relief valves.

Floor type model prf 15 and wall mounted model prb 14 hydrostatic pressure relief valves. Primarily used on storage tanks p1000axl materials include cast brass or bronze for the main valve body quality stainless steel 300 series internals. I was looking into ground water pressure relief valves and it appears there are two main types wall type that goes through the tank side walls and floor type that goes through the tank base slab. When this condition occurs the hydrostatic pressure will open the cover of the valve allowing water to enter thereby equalizing pressure inside and outside the tank.

Relief valves are designed to open at a preset pressure or temperature level and relieve the system when it has exceeded the desired level. The valve s relief of elevated liquid gas or steam pressures prevents damage to the system. 4 termination of the discharge piping can be to any of the following. We offer a wide selection of relief valves for any application.

Kennedy valve pressure relief valve 16 1 kennedy valve floor type pressure relief valve size 4 figure no. Trumbull floor type tank pressure relief valves are cast in the bottom of tanks of treatment plants to keep empty tanks from floating from an excess of groundwater beneath them. From what i can tell the wall type valves are slightly more reliable than the floor type but they also allow more head of water to build up as. In the example below an upper pressure relief valve drain not visible behind vent connector has been tied into the drain for the lower one.

F 1493 body length l inches 12 18 24 weight complete pounds 33 41 51 1. Floor type pressure relief valves performance under pressure located on the bottom of a tank floor type pressure relief valves open up when excess groundwater is present to prevent floating which can cause cracking and other serious issues. The groundwater pressure increase triggers the valve to open. Trumbull floor type tank pressure relief valves are cast in the bottom of tanks in treatment plants to keep empty tanks from fl oating from an excess of groundwater beneath them.

3 each tpr valve must have its own discharge piping not shared with any other devices or equipment. When this condition occurs the hydrostatic pressure will open the cover of the valve allowing water to enter thereby equalizing pressure inside and outside.