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Fisher™ EZL Series Pressure Reducing Regulator for Low Pressure Applications
Fisher EZL Series regulators are accurate pilot-operated, pressure balanced, soft-seated regulators.
They are designed for use in natural gas distribution applications such as district regulating stations and commercial/industrial meter sets. They provide low differential, smooth, reliable operation, tight shutoff and long life.

EZL CAD Drawings and Models: Click here
EZLOSX CAD Drawings and Models: Click here

Fisher™ EZL Series Pressure Reducing Regulator for Low Pressure Applications


Available Configurations
Type EZL: Control range of 7 inches w.c. to 300 psig / 17 mbar to 20,7 bar
Type EZLOSX: Type EZL with an integrated Type OS2 slam-shut device
Body Sizes and End Connection Styles
Body Sizes: NPS 2, 3, or 4 / DN 50, 80, or 100
Main Valve Body Material: WCC or Cast iron
End Connection Styles: NPT, SWE, BWE, CL150 RF, CL250 RF, CL300 RF, CL600 RF, or CL125 FF
Maximum Allowable Pressures
Inlet Pressure: 290 psig / 20,0 bar
Outlet (Casing) Pressure: 290 psig / 20,0 bar
Emergency Casing Pressure: 290 psig / 20,0 bar
Operating Differential Pressure: 290 psid / 20,0 bar d
Outlet Pressure Range
0.25 to 350 psig / 0,02 to 24,1 bar
Temperature Capabilities
-20° to 180°F / -29° to 82°C


  • Low Differential Applications—Can accurately control at pressure differentials as low as 2.9 psid / 0,2 bar d
  • Bubble-Tight Shutoff—A knife-edged metal plug and soft seat provide bubble tight shutoff for use in applications where positive shutoff is required such as dead-end systems.
  • Absolutely No Atmospheric Bleed—Eliminates nuisance and wasteful bleed gas to atmosphere by utilizing a pilot-operated control system, which bleeds 100% of the gas to the downstream system.
  • Easy In-Line Maintenance—Top entry design enables easier maintenance. Trim parts can be inspected, cleaned and replaced without removing the body from pipeline.
  • Precise Pressure Control—Provides stable and accurate downstream pressure control regardless of load changes or inlet pressure variations.
  • Travel Indicator—Simplifies in-service inspection and system troubleshooting
  • Full Pressure Rating—The equal inlet and outlet pressure rating of 290 psig / 20 bar, which allows easier selection and requires no special startup or shutdown procedures.
  • Integral Slam Shut Configurations—Type EZLOSX interrupts gas service during an overpressure or underpressure condition.