Consolidated 3900/3900 TM Series Pilot-Operated Safety Relief Valves

• Inlet Sizes

  1” through 12”

  Inlet Ratings

  ASME Class 150 to 2500, API 6A 10K & 15K

  Outlet Sizes

  2” through 16”

  Outlet Ratings

  ASME Class 150 to 300

  Orifice Sizes

  D though T, Full Bores

  Set Pressure Range

  15 to 13,500 psig

  Temperature Range

  -40°F to 505°F, above 505°F with heat exchanger

  Materials

  Stainless steel pilot with carbon steel main valve and stainless steel trim

  Standards and Regulations

  ASME B & PVC, Section VIII

   API 526

  Description

  Consolidated 3900/3900 TM Series Pilot-Operated Safety Relief Valves (POSRVs) feature a semi-nozzle main valve design that meets API 526 center-to-face dimensional requirements for POSRVs. The 3900 Triple Media (TM) Series is one of the first POSRVs engineered to perform on liquid, air/gas, and steam media and is multi-media certified to meet multiple media capacity stamping per ASME B & PVC Code Case 2787. Both 3900 series come standard with a non-flowing pilot valve that is suitable for compressible and incompressible fluids. Optional pilot valve constructions are available for either pop or modulating action functionality to meet various pressure range, seat tightness, and blowdown requirements. Highly versatile, these valve technologies offer ease of maintenance, high reliability, flexibility, and efficient operation and performance.