Type 31210

> Safety valves made from Brass
> Atmospheric discharge with threaded connections

Product Description

3.65mm Bore Atmospheric Discharge Safety Relief Valve for Compressed Air & Gases


Example Applications:
  • Compressors
  • Pressure vessels
  • Pneumatic systems
  • High-pressure systems



View or Download Datasheet

Type 31210 (3.65mm Bore Atmospheric Discharge Safety Relief Valve for Compressed Air & Gases)

Technical Information for Type 31210

  • Min. Pressure
    20.6 bar (298.77 psi) *
  • Max. Pressure
    134.5 bar (1950.75 psi) *
  • Temperature Range
    -40 °C to 200 °C (subject to seal material)
  • Flow Area
    10.46 mm² (3.65 mm inlet bore diameter)
  • Inlet Connection(s)
    3/8" to 3/4" BSP or BSPT *
  • Flow Rate
    70.91 to 349.11 std. litres/sec.
  • Materials
    Brass & St. Steel
  • Seal Materials
    Viton® / Nitrile
  • Test Certification
    Included - supplied Free of charge
* Dependent on bore size.
See datasheet for full details



Relieving pressure is set pressure +10%
Reseating pressure is set pressure -15%


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)
  • EAC


Unassuming Guardians

Operating quietly in the background, safety relief valves continuously monitor pressure and, if needed, act swiftly to protect systems without disrupting processes.


View or Download the Type 31210 Datasheet

Full Technical Information - Including Flow Rates

View or Download the Type 31210 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.


Find your PDF Download for the 31210 Range below…
Visit our downloads page for other Seetru product brochures and catalogues
Visit our Downloads Page View the Type 31210 Datasheet