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Pressure Relief Valves

Safety Pressure Relief FRSBV

Technical description

The DUNGS safety pressure relief valves, type FRSBV, is a spring-loaded safety blow-off device (SBV) with an adjustable response pressure. The safety blow-off valve corresponds to DIN 33821.

  • Inlet pressures up to 1.0 bar (100 kPa)
  • Large flow rate
  • Safety diaphragms
  • Internal sensor for response pressure as standard
  • Threaded connection Rp 1


Safety pressure relief valve for gas burners and gas equipment. Suitable for gases of gas families 1, 2, 3 and other neutral gaseous media. Free of non-ferrous metals, suitable for gases up to man. 0.1 vol.% H2S, dry.


EC type test approval as per EC Gas Appliance Directive:

FRSBV    CE-0085 AS0461

EC type test approval as per EC Pressure Equipment Directive:

FRSBV    CE0036

Approvals in other important gas consuming countries.


1 Product

1" BSP Gas Safety Pressure Relief Valve 70-350 mBar

Excl. VAT: £350.72

Incl. VAT: £420.86

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