Corner safety valve, for saturated steam and compressed air, G 1-1/2", DN 22, 4.5 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 431 m³/h of compressed air as soon as 4.5 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

• Discharge capacity of 431 m³/h of compressed air at DN 22, sufficient for the matching receiver or compressor.
• Fixed set pressure of 4.5 bar, so the protection is unambiguous without any adjustment on site.
• Gunmetal body, spring steel spring and a seal of EPDM, matched to steam, compressed air and other non-toxic, non-flammable gases.
• Temperature range of -40 to +150 °C, which covers outdoor installation and hot media alike.
• Corner design with 46 mm face-to-centre length and 140 mm overall height, so the valve adds little to a vessel wall.

Technical data

Applications

Stationary compressed air systems with a fixed set pressure of 4.5 bar. Vessels and pipework with female thread G 1-1/2". Plants with operating temperatures within the range -40 to +150 °C. Replacement of a defective safety valve of the same nominal size DN 22.

Standards and conformity

The valve is type tested and carries the component identification TÜV-SV...-312.22.D/G.0,28 CE0036 4,5 bar. It is supplied with a fixed setting only, so the set pressure of 4.5 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.