Flow Switch – In-line Model Q-1

Uses

Monitoring flow of coolants and fluids supplied to:

• Air Conditioning Systems
• Plastic Molding Equipment
• Cooling in Data Centers
• Scrubbers
• Diodes, SCRs, Triacs, etc.
• Spot Welders
• High Power Transistors
• Transformers
• Fluid Blending Systems
• Vacuum Systems
• Railroad Engine Lubrication Systems

Other Uses:

• Starting Back-up Pumps
• Oil Supply to Bearing & Gear Systems
• Monitor Filter Clogging
• Metal Fabrication Systems

Models

Specs

HYSTERESIS (Δ FLOW RATE TO ACTIVATE/DEACTIVATE SWITCH)
≈ 5% at upper end of flow range
≈ 25% at lower end of flow range

DIFFERENTIAL PRESSURE DROPS ACROSS UNIT
Under normal operating conditions:
≈ 1.0 psig at upper end of flow range
≈ 5.0 psig at lower end of flow range

WORKING LINE PRESSURE
300 psi max.

WORKING TEMPERATURE
180˚F max. (250˚F model available)

WETTED MATERIALS
Body: Red brass
Hardware: Noryl® (PPO) (10% glass fibers), Plastic
Working fluid “sees” red brass, phosphor bronze, and EPDM elastomer seal
Gasket: Cork/Nitrile blend
Optional Seal: Hypalon, Viton® or FKM

ELECTRICAL SWITCH CHARACTERISTICS
SPDT (single pole double throw)
15A, ½ hp @ 125 or 250VAC
½A @ 125VDC, ¼A @ 250VDC
5A @ 125VAC (tungsten lamp load)
10,000,000 operations, median
(Switch may be overloaded to 20A @ 125 or 250VAC for a minimum of 20,000 operations.)

Diagram