ตัวแทนจำหน่าย Fisher by Emerson Type EZR Relief Valve or Backpressure Regulator ในประเทศไทย
The Fisher Type EZR is a pilot-operated device that functions as a pressure relief valve or backpressure regulator, commonly used in city gate and district stations for overpressure protection, as well as in commercial and industrial applications requiring precise backpressure control.
Engineered for reliability, the Type EZR delivers quiet, smooth operation, tight shutoff, and long service life—even in challenging, debris-laden environments. Its internally actuated metal plug eliminates the wear issues associated with boot-style regulators. A uniquely designed flow path further enhances durability by deflecting debris and protecting internal components from erosion.
For added flexibility, the EZR can be easily converted into a pressure-reducing regulator by switching to a pressure-reducing pilot system (see Bulletin 71.2:EZR for more details).
Features
Quiet Operation
• The EZR’s standard cage design delivers industry-leading noise reduction—operating 6–8 dBa quieter than comparable flexible-element regulators.
High Flow Capacity
• Engineered flow geometry ensures high capacity with low noise levels. All Fisher™ products are laboratory tested, meaning users can confidently utilize 100% of the published flow rate.
Extended Service Life
• The diaphragm design features reinforced fabric layers, a raised bead edge, and a molded shape—all optimized for strength, durability, and extended performance under continuous use.
Built-In Debris Protection
• The regulator's innovative flow path helps shield the seat from particulate damage. An integrated stainless steel inlet strainer prevents large debris from reaching the diaphragm, reducing the risk of malfunction.
Tight Shutoff Performance
• The metal plug actively deflects contaminants away from critical sealing surfaces, ensuring excellent shutoff capability and extended maintenance intervals.
Travel Indicator
• Provides a visual reference for valve movement, simplifying troubleshooting and in-service inspection.
Highly Versatile Configuration
• The Type EZR can be easily reconfigured from a relief or backpressure regulator to a pressure-reducing regulator by changing the pilot system—making it a flexible solution for evolving system demands.
Specifications
Body Sizes and End Connection Styles
• Body Sizes: NPS 1, 2, 3, 4, 6, 8 / DN 25, 50, 80, 100, 150, 200
• End Connections: CL150 RF, CL300 RF, CL600 RF, NPT, CL125 FF, CL250 RF, SWE, and BWE
Minimum Relief Set Pressure
• 20 psig / 1.4 bar
Maximum Relief (Inlet) Pressure
• 1050 psig / 72.4 bar
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
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