Precision Relief Valves

Precision Relief Valves are used as a safety device on reservoirs where a certain maximum pressure should not be exceeded.  Their use can be extended to any application demanding pressure be relieved at a specific value.  The valves have a fixed upper pressure rating held within plus or minus 5 PSI accuracy.  The setting for the upper limit is tamperproof and cannot be adjusted.  The relief pressures can be reduced and locked at any setting.