Floor Type 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.

Floor type pressure relief valves.

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. Pressure relief floor wall wall pipe pressure relief valves are designed for placement in the bottom or sidewall of concrete tanks to prevent damage caused as a result of the tank floating due to ground water pressure around and underneath the tank exceeding the pressure of an empty or nearly empty tank. 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. 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.

Kennedy valve pressure relief valve 16 1 kennedy valve floor type pressure relief valve size 4 figure no. 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. When this condition occurs the hydrostatic pressure will open the cover of the valve allowing water to enter thereby equalizing pressure inside and outside. 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.

Relief valves are designed to open at a preset pressure or temperature level and relieve the system when it has exceeded the desired level. 3 each tpr valve must have its own discharge piping not shared with any other devices or equipment. The groundwater pressure increase triggers the valve to open. The valve s relief of elevated liquid gas or steam pressures prevents damage to the system.

A rubber epdm to metal seal is accomplished when the cover is in the closed position metal face is coated with epoxy paint. 4 termination of the discharge piping can be to any of the following. We offer a wide selection of relief valves for any application. The p1000axl 150c pressure relief valve is set at the p1000axl 150c pressure relief valve is set at 150 psi and utilized on water heating storage vessels for protection against over temperature or excessive pressure not for steam service.

F 1493 body length l inches 12 18 24 weight complete pounds 33 41 51 1. Floor type model prf 15 and wall mounted model prb 14 hydrostatic pressure relief valves.