The ST-7 Flow Switch (Part #200007500) offers reliable performance and durability for demanding high-pressure washing systems. Engineered for precision control, this flow switch features a robust microswitch design rather than a traditional reed switch, delivering superior resistance to shock and heavy machine vibrations. Capable of handling operating pressures up to 5000 PSI and flow rates up to 12 GPM, it triggers reliably at a switch point of 1.2 GPM to protect your equipment from dry running. Built to endure harsh industrial environments, it carries an IP65 water- and dust-proof rating, features a spring-assisted brass magnet configuration, and can be mounted in any orientation for maximum installation flexibility on your pressure washer setups.
Product Spotlight
The ST-7 Flow Switch is engineered to provide precise system activation and burnout protection for commercial pressure-washing equipment. By utilizing a heavy-duty micro-switch mechanism rather than a delicate reed switch, it easily withstands the intense vibration and pressure spikes common in industrial operations.
Product Benefits & Features
This versatile flow switch simplifies maintenance and extends the lifespan of your pressure washer components by reliably detecting fluid flow.
- Micro-Switch Technology: Provides enhanced durability and shock resistance compared to standard reed switches.
- IP65-rated protection: Fully sealed against dust intrusion and low-pressure water jets for dependable operation.
- Universal Mounting: Spring-assisted brass magnet configuration allows installation in any vertical or horizontal position.
- Convenient Wiring: Comes pre-equipped with a 47" wire lead for effortless connection during installation.
Key Features and Specifications
Built to exacting standards, the ST-7 Flow Switch integrates easily into high-performance system architectures, featuring standard fittings and clear rating metrics.
- Part Number: 200007500
- Maximum Pressure: 5000 PSI
- Maximum Temperature: 176° F
- Maximum Flow Rate: 12 GPM
- Switch Point: 1.2 GPM
- Inlet/Outlet: 3/8" FPT x 3/8" FPT
- Electrical Rating: 10.1 Amps / 250 VAC
- Weight: 0.80 lb
- Wire Length: 47"
Installation and Reliability
Installing the ST-7 Flow Switch is straightforward thanks to its standard 3/8" FPT inlet and outlet ports and generous 47" wiring harness. Its internal spring-assisted brass magnet configuration eliminates positioning restrictions, allowing technicians to mount the unit horizontally, vertically, or at an angle depending on layout constraints. Thanks to its shock-resistant internal micro-switch and IP65 weather-resistant housing, the ST-7 ensures long-term operational reliability, reducing system downtime and safeguarding vital pressure washer components under low-flow conditions.
