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1900/1900DM Series Safety Relief Valve

Consolidated 1900 & 1900 DM Safety Relief Valve with Eductor Tube Adv.

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Highly adaptable 1900 & 1900 DM Series Safety Relief Valves

Highly adaptable 1900 & 1900 Dual Media (DM) Series Safety Relief Valves are designed to meet numerous application requirements.

The patented innovation of the Dual Media trim design makes it the first and only spring-loaded safety relief valve in the industry that is “dual certified”, as defined by API Standard 520 Part 1 – Sizing and Selection, 10th Edition.  Dual Certified is defined as pressure relief valves that are both vapor/gas flow certified, and liquid flow certified where dual certification is achieved without making any modifications or adjustments to the relief device when switching fluids during the flow testing.  The 1900 DM trim is engineered to perform on both liquid and/or gas media with exceptional blowdown performance and is dual certified to meet dual media (liquid and gas) capacity stamping per ASME B & PVC Code Case 2787.  The 1900 DM trim is ideal for any liquid or gas application, two-phase liquid and gas, flashing or multiple relief case scenarios.

The patented innovation of the Dual Media trim design makes it the first and only spring-loaded safety relief valve in the industry that is “dual certified”, as defined by API Standard 520 Part 1 – Sizing and Selection, 10th Edition.  Dual Certified is defined as pressure relief valves that are both vapor/gas flow certified and liquid flow certified where dual certification is achieved without making any modifications or adjustments to the relief device when switching fluids during the flow testing.  The 1900 DM trim is engineered to perform on both liquid and/or gas media with exceptional blowdown performance and is dual certified to meet dual media (liquid and gas) capacity stamping per ASME B & PVC Code Case 2787.  The 1900 DM trim is ideal for any liquid or gas application, two-phase liquid and gas, flashing or multiple relief case scenarios.

Specifications

  • Orifices: D – J Orifices
  • Set pressure: Up to 10,000 psig (689.5 barg)
  • Sizes: 1-13/16” x 3, 3 x 4
  • Inlet connections: Studded API 6A 10/15K flanges with ring joint nozzle, Grayloc™ and Techlok™ hubs available
  • Outlet connection: Studded ASME Class 300
  • Body/bonnet: Duplex (F51, F53, F55), F65 (non-code) alloy, SA182 F316 SS, SA105 CS, SA350 LF2 CS
  • Trim: Nozzle/Disc – Inconel 718 is standard, F51/55 duplex materials with Stellite hard-facing is optional
  • Spring material: Inconel X-750
  • Seat design: Metal seat design only

Service

  • Steam
  • Organic heat transfer media
  • Liquid

Brochure / Specs

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