Crosby Series 82 Direct Spring Operated PRV for Natural Gas

The Crosby™ Series 82 Direct Spring Operated PRV, manufactured by Emerson, is a high-performance pressure relief valve specifically designed for natural gas service, ensuring safe and reliable overpressure protection for pipelines, pressure vessels, and process systems. Its direct spring design provides a fast-acting, accurate response to pressure excursions, maintaining system safety while minimizing product loss. Built with robust, corrosion-resistant materials and a precision-engineered spring-loaded poppet mechanism, the Series 82 PRV offers tight set pressure tolerances, minimal chatter, and long-term reliability. The valve’s compact design enables easy installation in both high- and low-pressure gas systems, making it suitable for industrial, pipeline, and gas distribution applications. The Series 82 complies with industry codes and standards for natural gas relief devices, including API, ASME, and CSA, ensuring regulatory compliance and operational safety.

Technical Specification of Crosby Series 82 Direct Spring Operated PRV for Natural Gas

• Valve Type: Direct Spring Operated Pressure Relief Valve

• Model: Crosby Series 82

• Service: Natural Gas, other non-corrosive compressible gases

• Set Pressure Range: 15 to 1,500 psi (1–103 bar) (customizable per application)

• Capacity Range: Sized per ANSI/ASME standards for required relief flow

• Body Material: Carbon Steel, Stainless Steel, or Alloy Steel

• Trim Material: Stainless Steel or hardened steel for wear resistance

• End Connections: Flanged (RF/RTJ), Threaded, or Butt Weld

• Temperature Range: -29°C to +200°C (-20°F to +392°F)

• Leakage Class: Tight sealing per API 526 and ANSI/FCI 70-2 standards

• Operation: Direct spring loaded, lever optional

• Compliance: API 526, ASME Section VIII, CSA Z21.22, ISO 4126

Feature of Crosby Series 82 Direct Spring Operated PRV for Natural Gas

• Leak-tight performance near set pressure allows higher operating pressures resulting in increased process throughput and system optimization.
• 2-piece body design with easily replaceable seat and seals reduces downtime and maintenance costs.
• FKM soft seat provides repeatable leak-tight performance before and after each relief cycle.
• Bubble tight at 90% or better of set pressure.
• Manufactured to ASME Section VIII UV for gas service.
• Relieving capacities certified by National Board of Boiler and Pressure Vessel Inspectors.
• Standard trim components in 316 stainless steel for maximum corrosion resistance.
• Optional trim to NACE MR-0175 (2002 Edition).
• Gas service only. Lift lever not available for air service.