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System Sensor WFD40EXP waterflow detector 4"

System Sensor WFD40EXP waterflow detector 4
SYSTEM SENSOR
BK-WFD40EXP
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System Sensor WFD40EXP waterflow detector 4

Description

The System Sensor WFD40EXP is an explosion-proof waterflow detector for use with 4" pipe.

The System Sensor WFDEXP series is designed to handle extreme conditions.

The WFDEXP series features a rugged NEMA 4-rated cast aluminum housing. Designed for both indoor and outdoor use, the WFDEXP series operates across a wide temperature range, from 32°F to 160°F. Inside, two sets of SPDT (Form C) synchronized switches are enclosed in a rugged terminal block to assure reliable performance.

The WFDEXP series offers unique features that assure greater operational reliability. By housing the spring mechanism separately from the explosion environment, the sensitivity of the adjustment spring and the detector is protected at all times. Adding to WFDEXPÂ’s reliability is its sealed retard mechanism, which prevents contamination by dust and dirt when the cover is removed.

Like all System Sensor waterflow detectors, the WFDEXP series is designed for easy installation. With its visible switch activation, the WFDEXPÂ’s retard timing can be verified, even during noisy conditions.

These units are ideal for installation in hazardous locations classified as follows:

Class I, Groups B, C, D, Division 1 & 2
Class II, Groups E, F, G, Division 1 & 2
Class III, Division 1 & 2

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