タイトルまたは説明

The WFAR water flow indicators shall be installed on system

piping 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 ***0 gallons per minute and a static

pressure rating up to **0psi for **8 (*0mm thru **0mm) 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.

 

Working Pressure: Max3.1Mpa (**0psi)

Sensitivity: *5.***7.5L/min (***0GPM)

Standards: GB***5.*****8 & FM********6&UL**6

Tamper Device: Special tamper screws to prevent disassembly

Maximum Surge: 5.5m/s (*8FPS)

Operating Temperature: 4.5ºC to *9ºC (*0º F to **0ºF)

Retard Structure: Time delay adjustment via rotate dial

Compatible Pipe: Steel pipe, schedule *0 through *0

Contact Rating: Two sets of SPDT (Form C)

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