6
IOM D-040L 2”
2. INSTALLATION
Important: Before performing any work on the air valve make sure that all workers on site are familiar with the
safety instructions and the relevant local and general safety instructions and work regulations.
2.1. Installation Recommendations
Single Air Valve on an Isolating Valve at 45° to Air Valve outlet
Two Air Valves on an Air Trap with separate Isolating Valves.
Air Valve outlets face outward and the Isolating Valves at 45°
to Air Valve outlets
Two Air Valves on a shared Isolating Valve. Air Valves outlets
face outward and the Isolating Valve at 45° to Air Valve outlets
Underground Installations
Underground installations require a venting pipe from the
manhole
Use an angular installation to bypass an obstacle directly
above the pipeline.
