Series 8353 valves are 2-way normally closed diaphragm type air valves designed for remote pilot operation. The valves have an angle type aluminum body with a 1/8" NPT connection in the valve bonnet for connection to the ASCO remote pliot valve.  These valves are designed for multi-unit installations with separately mounted ASCO pilot valves.
When the remote pilot valve opens, pressure above the main diaphragm is released allowing main line pressure to act against the underside of the diaphragm opening the main valve orifice. When pliot valve closes, main line pressure bleeds to the top of the diaphragm and closes the main orifice.
• Minimum operating pressure 5 PSI.
• Maximum operating pressure 125 PSI.
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