Safety pressure relief
FRSBV

Technical description
The DUNGS safety pressure relief valve, 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

Application
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 max. 0.1 vol.% H₂S, dry

Approval 
EC type testing certificate as per:
• EC-Gas Appliances Regulation
Approvals in other important gas consuming countries.

FRSBV Spring-loaded safety blow-off device with adjustable reference-value spring, internal tap of response pressure.