Type 848

> Safety valves made from Stainless Steel
> Atmospheric discharge with threaded connections

Product Description

Type 848

8mm Nominal Bore Atmospheric Discharge Safety Relief Valve for Compressed Air & Gases


  • Compressors
  • Pressure vessels
  • Pneumatic systems
  • Transport and railway systems



View or Download Datasheet


Technical Information

Technical Information for Type 848 / 841

  • Min. Pressure
    0.55 bar (7.98 psi) *
  • Max. Pressure
    21.00 bar (304.50 psi) *
  • Temperature Range
    -60 °C to 200 °C (subject to seal material)
  • Flow Area
    50.24 mm² (8 mm inlet bore diameter)
  • Inlet Connection(s)
    1/4" to 1/2" BSP, BSPT, NPT *
  • Flow Rate
    9.00 to 156.00 std. litres/sec.
  • Materials
    St. Steel
  • Seal Materials
  • Test Certification
    Included - supplied Free of charge

Relieving pressure = Set pressure +10%, (0.1 bar below 1.0 bar )
Reseating pressure = Set pressure -10%, (0.3 bar below 3.0 bar )


Flows 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.


  • 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


Pressure Guardians

Pressure relief valves stand sentinel in diverse systems, automatically releasing excess pressure and preventing equipment damage. Essential safety measures for various industries and applications.


View or Download the Type 848 / 841 Datasheet

Full Technical Information - Including Flow Rates

View or Download the Type 848 / 841 Datasheet

Seetru offers a wide range of downloadable datasheets for our products, including safety relief valves, liquid-level gauges, and sight glasses.  These datasheets provide detailed information on the technical specifications, features, and applications of Seetru products.  They are an essential resource for engineers, designers, and other professionals who need to select the right Seetru products for their specific needs.


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