F.1507 – FLOW SWITCH THREADED

The F.1507 water flow indicators shall be installed on a tee that has a 1” NPT branch include 1”, 1¼ “, 1½ “ and 2” as designated on the drawing and/or as specified herein. Water flow indicators shall mount on any clear pipe span of the appropriate normal size, either a horizontal or vertical pipe. The indicators shall have a sensitivity in the range of 4-10 gallons per minute and a static pressure rating up to 450psi for 1”-2” (DN25 thru DN50) pipes. The indicator shall respond to water flow in the specified direction after a preset time delay that is field adjustable. The retard structure shall be a sealed mechanical pneumatic unit with visual time delay adjustment.

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