Corner safety valve, for saturated steam and compressed air, G 3/4", DN 13, 4.5 bar, gunmetal

A steam boiler must not exceed its permissible working pressure, not even when the control system fails. This corner safety valve opens at a fixed set pressure of 4.5 bar and releases the excess pressure to atmosphere. The connection is G 3/4" with a nominal size of DN 13. The discharge capacity is 150 m³/h of compressed air. A gunmetal body, a spring steel spring and a seal of EPDM cover the temperature range of -40 to +150 °C.

Advantages

• Discharge capacity of 150 m³/h of compressed air at DN 13, 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 31 mm face-to-centre length and 70 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 3/4". Plants with operating temperatures within the range -40 to +150 °C. Replacement of a defective safety valve of the same nominal size DN 13.

Standards and conformity

The valve is type tested and carries the component identification TÜV-SV...-312.13.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.