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The Spence D5 pressure pilot, MPN D5-5/25, is designed for a pressure range of five to twenty-five psi. It operates in conjunction with E Series main valves. The pressure pilot functions by sensing steam flow, allowing it to open and close the main valve. The pressure spring inside the pilot controls this action. The pressure setting can be adjusted using an adjustment nut located on the top.
This pressure pilot is essential for maintaining proper steam pressure in heating systems.
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