Zone valve box shall be Silbermann series
Each recessed/exposed zone valve shall consist of a steel valve box constructed of 1.5 mm steel sheet, complete with a backed enamel finish RAL 9016, which can house single or multiple shut-off ball valves with tube extensions.
Valves shall be a 3-piece forged brass and a 4-bolt design, bronze or brass body, stem, ball bolts, and nuts shall be made of stainless steel, double seal, full port union ball type, with Teflon (RPTFE) seats and Viton seals, with a pressure rating of 4080 kPa (600 psi) or 40.8 bars.
Valves shall be operated by a lever-type handle requiring only a quarter turn from a fully opened to a fully closed position. All valves shall be equipped with type “K” washed and degreased copper pipe stub extensions of sufficient length to protrude beyond the sides of the box.
All pipe stub extensions shall be supplied with suitable plugs or caps to prevent contamination of the assembly prior to installation.
Each valve shall be supplied with a medical gas identification label.
Valves shall be available with or without line pressure gauges, as required. Gauges, shall be 50 mm diameter.
Pressure gauges shall read 0-1100 kPa (0-11 bar) for all gauges except Nitrogen, which shall read 0-2500 kPa (0-25 bar), and Vacuum, which shall read 0-100 kPa (0-760 mmHg).
There are two front options: an aluminum door or a pull-out removable window.
