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Compare pressure relief valve and pressure reducing valve.
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written 5.7 years ago by |
Parameter | Pressure Relief Valve | Pressure Reducing Valve |
---|---|---|
Function | To relive excessive pressure for safety of system | To supply reduced pressure in the certain portion of the circuit |
Normal Position | Normally Closed | Normally Open |
Operated element | Pilot line from inlet operates the poppet | Pilot line from outlet operates the sliding spool. |
Pressure | Inlet pressure is the pilot pressure. | Outlet pressure is the pilot pressure. |
Preset value | It opens when inlet pressure becomes more than preset value. | It closes when outlet pressure becomes more than preset value. |
Connection | Fitted in by-pass line to reservoir tank. | Fitted in main line to system. |