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9 Series Pressure Relief Valve

Sarasin-RSBD®

9 Series Pressure Relief Valve

The Sarasin-RSBD® 9 Series is a compact Spring Loaded Pressure Relief Valve offering a versatile design with premium performance. The Sarasin-RSBD® 9 Series range of Spring Loaded Pressure Relief Valves are available in both conventional and balanced bellows designs. These compact spring loaded safety relief valves can be used in vapor, gas, liquid, or steam applications.

The Sarasin-RSBD® safety relief valves are designed to provide high integrity performance and repeatability by their use of an integral full, one-piece nozzle, a self-aligning top-guided disc & disc-holder, and a single adjusting ring for blowdown setting. The 9 Series pressure relief valves are suitable for use within the power industry as well as for cryogenic and industrial gas processes.

KEY FEATURES & BENEFITS

  • An extensive range of material options and trim designs for varying process applications

  • Full nozzle offering protection of the valve body during its operating cycle

  • Conversion of trim designs using a minimum of components

  • Resilient seat design for maximum seat tightness and to prevent fugitive fluid emissions

  • Flow capacity tested by the US National Board and carrying the ASME UV code stamp

  • Threaded or flanged end connections

  • Block forged body design for high pressure & severe service applications

  • Suitability for NACE MR-01-75 & ISO 15156 and cryogenic applications

  • Thermal expansion process duties

SIZE RANGE & DIMENSIONS

  • 15 - 40mm (0.5 - 1.5 inches)

SEAT TIGHTNESS

  • Metal seats 90% Soft seats 93%

TEMPERATURE RANGE

  • -270ºC - 400ºC (-454°F - 752°F)

MATERIALS

  • Carbon steel

  • Austenitic & Martensitic Stainless Steels

  • Duplex & Super-duplex Alloys

  • Alloy 254 (6Mo)

  • Alloy 400

  • Alloys B & C

  • Alloys 625 & 825

APPLICATIONS

  • Oil & Gas Upstream (E & P)

  • Midstream (LNG) and downstream (refining)

  • Oil & Gas pipelines & compression stations

  • Chemical & petrochemical production

  • Industrial gas (cryogenics)

  • Conventional and nuclear power plants

  • LNG & FLNG

DESIGN STANDARDS

  • ASME BPVC Section XIII

  • API Std 520

  • ISO 4126

  • PED 2014/68/UE

  • ATEX 94/9/EC

  • EAC TR CU 10/12/32

  • SELO TS

  • RCCM Codes

  • ASME BPVC Section I (Liquid Service only)

DESIGN RATINGS

  • ASME & API Class 150 to 2500 plus API Class 5000 & 10000 (customized)

CAPACITY

  • ASME Section III (St. Victoret Plant)

UPGRADES & ADAPTATIONS

  • Individually calculated and selected for each process application

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