Pressure Relief Valves

The Pressure Relief Valves are typically used to allow flow under conditions of excessive pressure buildup. In most applications they are a normally closed bypass port which opens under high pressure build up conditions.

In typical applications the pressure relief valve prevents the possibility of restricted flow and excessive pressures such as during cold weather or a blocked flow passage. These Valves allow bypass flow only under conditions of over-pressure, thus preventing the buildup of pressures that could cause damage to a cooler, radiator, hydraulic tubes, hoses, fittings, etc.