13mm Bore – 64613 Flanged

> Safety valves made from Stainless Steel
> Enclosed discharge valve with flanged connections
> Metal-to-metal sealing

Product Description

13mm Bore 64613 Flanged

13mm Nominal Bore Enclosed Discharge Safety Relief Valve for Compressed Air & Gases


Example Applications:
  • Air/gas compressors
  • Pressure vessels
  • Medical gases/Technical gases
  • Refrigeration (including ammonia)
  • Thermal relief
  • Steam systems
  • Hydrogen



View or Download Datasheet

Technical Information

Technical Information for Type 64613 Flanged

  • Min. Pressure
    0.32 bar (4.64 psi)
  • Max. Pressure
    49.00 bar (710.50 psi)
  • Temperature Range
    -30°C to 200°C (subject to seal material)
  • Flow Area
    147.34 mm² (13.7 mm inlet bore diameter)
  • Inlet Connection(s)
    DN20/DN25 DIN or 3/4"/1" ANSI Flange
  • Outlet Connection(s)
    DN25 DIN or /1" ANSI Flange
  • Flow Rate
    27.00 to 1214.00 std. litres/sec.
  • Materials
    St. Steel
  • Seal MaterialsMetal to metal
    Viton® / Nitrile / Neoprene / Ethylene Propylene / Perfluroelastmer
  • Test Certification
    Included - supplied Free of charge
Flow Rates:

Flow calculated based upon: Air @ 15°C and 1013 mbar and are for guidance only, contact Seetru for help in sizing to your specifications.


  • The maximum permissible built-up back pressure is 10% of the set pressure
  • Stable operation on flows down to 50% of valve-rated capacity
  • Relieving pressure is set pressure +10% (0.1 bar below 1.40 bar)
  • Reseating pressure is set pressure -10% (0.3 bar minimum)
  • Below 1.40 bar g., PED & EAC approved only, above 1.40 barg PED, EAC, ASME, and CRN approved


  • Designed in accordance with BS EN ISO-4126-1 & -7
  • PED 2014/68/EU (CE)
  • PE(S)R UK SI 2016 No. 1105 (UKCA)
  • CRN
  • EAC


Precise Pressure Control

Calibrated to specific thresholds, these valves open at the exact moment needed to relieve pressure buildup, optimizing efficiency and avoiding unnecessary venting.


View or Download the 64613 Flanged Datasheet

Full Technical Information - Including Flow Rates

View or Download the Type 64613 Flanged Datasheet

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Visit Our Downloads Page View the Type 646 Flanged Datasheet