QUALITROL 206 MPRD Medium pressure relief device
Compact protection of personnel and equipment
Mechanical overpressure protection device provides pressure relief on transformers during overpressure conditions, automatically resealing once pressure has fallen. Available with a stainless steel shield and/or up to two sealed switches.
- Uniquely designed tip/side gasket that seals under repeated operations
- Available stainless steel directional shield for controlling hot oil and gas discharge
- 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
Customizable for your application
- 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
- Directional shield (shown below)
- Up to 2 alarm switches
- Gasket material and indicator style
For overpressure protection on oil filled transformers, load tap changers, and other related electrical apparatus.