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.
Specifications
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
Features
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.
