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Home | Regulators | Type EZR Relief Valve or Backpressure Regulator

Natural Gas Regulators

Type EZR Relief Valve or Backpressure Regulator

Type EZR Relief Valve or Backpressure Regulator The Type EZR pilot-operated, pressure relief valve or backpressure regulator is typically used in city gate and district stations as a relief valve for overpressure protection, or in commercial and industrial applications as a backpressure regulator. The Type EZR provides smooth, quiet operation, tight shutoff, and long life, even in dirty service. Its internally actuated metal plug eliminates disadvantages associated with boot-style relief valves and backpressure regulators. The specially engineered flow path deflects debris, protecting the seat from damage and erosion. The Type EZR relief valve or backpressure regulator can be converted to a pressure reducing regulator simply by changing to a pressure reducing piloting system (see Bulletin 71.2:EZR).

Features
  • Quiet Operation
  • O-Ring Design
  • Versatility
  • Long Life
  • Full Usable Capacity
  • Easy In-Line Maintenance
  • Tight Shutoff
  • Powder Paint Coating
  • Fast Pilot Reseat
  • Thorough Laboratory Testing
  • Debris Protection
Body Sizes and End Connection Styles
  • NPS 2, 3, 4, and 6 (DN 50, 80, 100, and 150): NPT (2 only), CL125 FF, CL250 RF
  • NPS 1, 2, 3, 4, and 6 (DN 25, 50, 80, 100, and 150): NPT or SWE (1 and 2 only), CL150 RF, CL300 RF, CL600 RF or BWE
Minimum Relief Set Pressure
20 psig (1,4 bar)

Maximum Relief (Inlet) Pressure
100 to 750 psig (6,9 to 51,7 bar)

Pressure Registration
External through upstream control line

Temperature Capabilities
  • 17E68 Nitrile (NBR): -20 to 150°F (-29 to 66°C)
  • 17E97 Nitrile (NBR): 0 to 150°F (-18 to 66°C)
  • 17E88 Fluorocarbon (FKM): 0 to 260°F (-18 to 127°C)
Approximate Weights
  • Cast Iron: 22 to 255 Pounds (10 to 102 kg) depending on body size and end connection
  • WCC or LCC Steel: 22 to 350 Pounds ( 10 to 159 kg) depending on body size and end connection



For general enquires contact us at (+64) 9 634 1391 or by email at sales@customcontrols.co.nz

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