Fisher LR128

The Type LR128 pilot-operated, pressure relief valve or backpressure regulator is designed for liquid industrial/commercial applications. 

The Type LR128 provides smooth operation, tight shutoff, and long life. Its internally actuated metal plug eliminates disadvantages associated with flexible element style regulators, and the specially engineered flow path deflects debris, protecting the seat from damage and erosion.

The Type LR128 is used in conjunction with a type 98HM pilot and type 112 restrictor. An internal inlet strainer prevents large particles from entering the main valve, limiting damage to internal parts.


  • Tight shutoff
  • Debris protection
  • High accuracy
  • Long life
  • Full usable capacity
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