HARWIL FLOW SWITCH Q-12N

Description

VERY LOW COST

• Miniature 1/2″ NPT Unit
• Available in SPDT, NO or NC Switch Operation

True Flow Switch Performance Independent of Pressure and Temperature. Flexible Design

• Target area
• Target Length
• Target stiffness

Which provide performance and flexibility to meet a multitude of pipe size and flow rate applications.

• Extremely Wide Operating Range:
• Down to 0.7 GPM in 3/4 inch pipes
• Up to 590 GPM in 8 inch pipes
• Many more switch points and pipe sizes available, consult factory for free analysis.

Send Us Your Special Requirements – We Will Quote A Special Unit To Meet Those Requirements

• Designed for a broad spectrum of industrial fluids – pure water, tap water, sea water, cooling tower water, glycol solutions, acids, bases, hydrocarbons, ketones, lubricating oils, gasoline, JP-4, plating solutions.
• Max flow may be five times normal flow.
• Positive stop essentially eliminates fatigue effects of turbulence, vibration and flow surge on flow detecting element.
• Very low pressure drop – typically less than 1.0 psig at normal flow rate.
• Line pressure to 250 psig.
• Temperature to 200°F continuous.
• Switches 5 VDC to 240 VAC.
• Power the driving coil of small ice cube relays as well as some 30 amp power relays.
• Provides dry circuit interface with computer and PLC modules.
• Small size and low profile provides easy mounting in crowded installations.

Typical Uses

• Brakes and clutches
• Computer systems
• Electromagnets
• Emergency wash down showers
• Fire sprinkler flow alarms
• High power transistors, SCR’s etc.
• Lasers
• Marine and stationary engines

Monitoring flow and temperature of coolant water supplied to:

• RF and Radar transmitters
• Sea water & Fresh water systems
• Spot welders
• Transformers
• Vacuum systems

In Chemical Processing

• Liquid transfer
• Starting back-up pumps
• Sewage systems
• Fluid blending systems
• Monitoring pump output, valve position, systems flow status
• Liquid scrubbers
• Water treatment
• Monitor filter clogging
• Heat transfer fluids\

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