■ 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 the 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 balltype, 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 anly 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