Corner safety valve, for saturated steam and compressed air, G 1-1/2", DN 22, 9.0 bar, gunmetal

Large boilers and vessels need a correspondingly large discharge cross section so that the pressure really falls in a fault case. This corner safety valve with DN 22 and connection G 1-1/2" releases 789 m³/h of compressed air as soon as 9.0 bar is reached. The gunmetal body and the spring steel spring stay dimensionally stable across the range -40 to +150 °C. The overall height is 140 mm.

Advantages

• Connection G 1-1/2" with nominal size DN 22 and 56 mm across flats, so an ordinary spanner is enough for installation.
• Discharge capacity of 789 m³/h of compressed air at DN 22, sufficient for the matching receiver or compressor.
• Fixed set pressure of 9.0 bar, so the protection is unambiguous without any adjustment on site.
• Temperature range of -40 to +150 °C, which covers outdoor installation and hot media alike.
• Gunmetal body, spring steel spring and a seal of EPDM, matched to steam, compressed air and other non-toxic, non-flammable gases.

Applications

Pressure vessels in plant engineering with nominal size DN 22. Protection of headers with a discharge capacity of 789 m³/h. Test rigs and experimental setups limited to 9.0 bar. Installation in tight spaces where the corner design with 46 mm face-to-centre length saves room.

Standards and conformity

The valve is type tested and carries the component identification TÜV-SV...-312.22.D/G.0,28 CE0036 9 bar. It is supplied with a fixed setting only, so the set pressure of 9.0 bar cannot be altered. A setting certificate to 3.1 is available on request. The version is approved for saturated steam and for steam boilers to TRD group 1.