Mechanical · M-DEY6V

Boiler Gas Hookup and Train Assembly Diagram

Elements

About this detail

The gas train assembly, regulator, valves, and vent lines for a boiler installation. The medium-pressure natural gas supply at 5 PSI connects through a plug valve and union before passing a boiler gas pressure regulator stepping down to 14 inches water column. A series of numbered components including ball shut-off valves, high-pressure switches, burner valves, pressure test ports, pressure gages, and a normally closed solenoid emergency shut-off valve with positive shut-off and vent are incorporated along the line. Vent lines are routed separately to the outside with insect screening and terminated down, sized one line size larger than the PRV connection per International Mechanical Code. Additional provisions include a line size dirt leg with a cap for pressure measuring instruments, an exhaust stack thermometer, and an emergency shut-off switch interlocked to the solenoid valve through the boiler control panel.

Members view this detail in full resolution, download the CAD files (SVG, PDF), and can adapt it in the built-in CAD editor — export DXF, DWG, or PDF.

Start membership

Similar details