Corner safety valve, for saturated steam and compressed air, G 1-1/4", DN 18, 4.0 bar, gunmetal

In steam and compressed air systems the safety valve is the last element of pressure protection and has to work without auxiliary power. This corner valve in G 1-1/4" responds at 4.0 bar and is fixed to that setting. Through DN 18 it discharges 262 m³/h of compressed air. The EPDM seal and the gunmetal body permit temperatures of -40 to +150 °C. The width across flats at the hexagon is 49 mm.

Advantages

• Discharge capacity of 262 m³/h of compressed air at DN 18, sufficient for the matching receiver or compressor.
• Fixed set pressure of 4.0 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 40 mm face-to-centre length and 100 mm overall height, so the valve adds little to a vessel wall.

Applications

Pressure vessels in plant engineering with nominal size DN 18. Protection of headers with a discharge capacity of 262 m³/h. Test rigs and experimental setups limited to 4.0 bar. Installation in tight spaces where the corner design with 40 mm face-to-centre length saves room.

Standards and conformity

The valve is type tested and carries the component identification TÜV-SV...-312.18.D/G.0,28 CE0036 4 bar. It is supplied with a fixed setting only, so the set pressure of 4.0 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.