206 Medium Pressure Relief Device (MPRD)
Pressure Equipment
Medium Pressure Relief Device (MPRD) is designed for over-pressure conditions on oil filled transformers, load tap changers, and other related electrical apparatus.
- Uniquely designed tip/side gasket that seals under repeated operations
- Up to 2 switches for alarm and control
- Integrated gas bleed system
- Compact protection of personnel and equipment
- Stainless steel shield mounted on top of device redirects flow of hot oil and gas away from personnel or critical parts on the transformer
- Mesh flow opening allows for the quick pressure relief, protecting your equipment while limiting the possibility of debris entering the device
- 100% Tested for life-long performance
- Every unit is tested and certified to meet operating standard prior to shipping, with test records kept on file
- When the pressure rises rapidly above the operating pressure, the unit will exhaust with a percussive “bang”
- Device positively reseals at no less than half its normal operating pressure
- The indicator and optional alarms will trip as the mechanism actuates
- Corrosion resistant materials and robust design provide dependable protection
- Mechanically fastened dual sealing gasket eliminates the potential of seal blowout and protects against contaminants such as dirt and moisture
- Flange, ring and valve are made from aluminum and painted with a thermosetting powder coat for long life
- Switches are protected by durable cast enclosures with IP66 rating
- Operating pressure is adjustable in three ranges (2.9 to 5.7 PSI, 5.8 to 8.6 PSI and 8.7 to 11.6 PSI)
- Available with Nitrile or Viton gaskets
- Available with up to two switches for alarm and control functions, with or without shield
- Operating pressure