Corner safety valve, for saturated steam and compressed air, G 1-1/2", DN 22, 2.5 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 272 m³/h of compressed air as soon as 2.5 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

• Fixed set pressure of 2.5 bar, so the protection is unambiguous without any adjustment on site.
• Discharge capacity of 272 m³/h of compressed air at DN 22, sufficient for the matching receiver or compressor.
• Discharge capacity of 213 kg/h of steam, which also makes the valve usable on steam boilers to TRD group 1.
• Gunmetal body, spring steel spring and a seal of EPDM, matched to steam, compressed air and other non-toxic, non-flammable gases.
• Connection G 1-1/2" with nominal size DN 22 and 56 mm across flats, so an ordinary spanner is enough for installation.

Technical data

Applications

Pressure vessels in plant engineering with nominal size DN 22. Protection of headers with a discharge capacity of 272 m³/h. Test rigs and experimental setups limited to 2.5 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 2,5 bar. It is supplied with a fixed setting only, so the set pressure of 2.5 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.