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NOTE: If the valve stem is pre-grooved at 1/8” minimum depth; proceed to step 7. 1. Remove and discard "e" ring and roller from the trip rod. 2. With the valve in the FULL OpeN position, locate the OSYSU across the valve yoke as far as possible from the valve gland so that the spring loaded trip rod of the OSYSU
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SH-120 SERIES - Potter Electric Signal Company, LLC
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www.pottersignal.comValves, Dry Pipe Valves, Pre-Action Valves, or Deluge Valves. The pressure switch shall be actuated when the alarm line pressure reaches 4 - 8 psi (0,27 - 0,55 bar). Pressure type waterflow switches shall have a maximum service pressure rating of …
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