Supplier Anderson Greenwood Series 400 Pilot Operated Relief Valves

WWW.DISTRIBUTORALATINDUSTRI.COM | The Anderson Greenwood Series 400 Pilot Operated Relief Valve (PORV) is a high-performance, modulating safety relief valve designed to provide reliable overpressure protection for gas, liquid, and multiphase applications. Utilizing a non-flowing pilot system, the valve remains bubble-tight up to 98% of its set pressure and opens proportionally according to the required relief demand, minimizing product loss and environmental emissions.

Supplier Anderson Greenwood Series 400 Pilot Operated Relief Valves

The Series 400 is particularly suitable for dirty, wet, or challenging process conditions and is widely used in oil and gas, petrochemical, chemical processing, power generation, and industrial applications where precise pressure protection and operational reliability are critical.

Features:

  • Modulating relief action for smooth and proportional pressure control
  • Non-flowing pilot design for improved reliability and reduced product loss
  • Bubble-tight sealing up to 98% of set pressure
  • Balanced design unaffected by back pressure
  • Soft-seat and metal-seat options available
  • Field test connection for in-service set pressure verification
  • Replaceable seats, seals, and nozzles for simplified maintenance
  • Optional remote sensing capability
  • High Gain Modulating option provides full lift at only 5% overpressure
  • Suitable for dirty, wet, liquid, gas, and multiphase services

Construction Materials:

  • Body: Carbon Steel (WCB), Alloy Steel (WC6), or Stainless Steel
  • Internal Trim: Stainless Steel
  • Seats: Soft Seat or Metal-to-Metal Seat
  • Seals: High-performance elastomers suitable for process conditions
  • Pilot Components: Corrosion-resistant alloys

Technical Specifications:

  • Model: Series 400
  • Type: Pilot Operated Modulating Safety Relief Valve
  • Sizes: 1″ × 2″ to 10″ × 14″ (DN25 × DN50 to DN250 × DN350)
  • Inlet Pressure Classes: ANSI Class 150 to 600
  • Set Pressure Range: 15 to 1,480 psig (1.03 to 102 barg)
  • Temperature Range: -65°F to +600°F (-54°C to +315°C)
  • Codes and Certifications:
    • ASME Section VIII & XIII (UV Stamp)
    • DOT 49 CFR 192.199
    • CSA Z662
    • PED 2014/68/EU (CE Marking)

Applications:

  • Oil and gas production facilities
  • Petrochemical and refining plants
  • Chemical processing industries
  • LNG and cryogenic systems
  • Power generation plants
  • Storage tanks and pressure vessels
  • Pipeline overpressure protection
  • Wet, dirty, and multiphase process services

The Anderson Greenwood Series 400 Pilot Operated Relief Valve delivers superior overpressure protection, maximum system efficiency, and reduced maintenance requirements, making it an ideal solution for critical process applications that demand high reliability and precise pressure control.

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