Model 127-3LF/727-3LF Pressure Reducing with Low Flow

Model 127-3LF/727-3LF Pressure Reducing with Low Flow

The Models 127-3LF and 727-3LF have a wide range of applications for anywhere a pressure must be reduced to a manageable level under a wide range of demand that cannot normally be provided by a single valve. A typical application is for commercial buildings such as apartment complexes, condominiums, hospitals, etc.


  • Reduces a higher inlet pressure to a lower outlet pressure
  • Combination of bypass regulator and pilot-operated main valve delivers widest possible flow range
  • Constant outlet pressure over wide flow range
  • Pilot-operated main valve not subject to pressure fall off
  • Can be maintained without removal from the line
  • Isolation ball valves to facilitate maintenance and troubleshooting
  • Adjustable opening speed
  • Factory tested and can be pre-set to requirements

*Model 127-3LF uses a “full port” basic valve. Model 727-3LF uses a “reduced port” basic valve that enables proper sizing without the use of pipe reducers. Refer to Sizing Guidelines and Valve Dimensions.

Model Sheet Model Sheet (metric) Specifications Animation Operations Manual
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