MV60H | Horizontal Flow Switch, 4350 PSI Pump Control

MV60H Horizontal Flow Switch Overview

The AR MV60H is a high-pressure horizontal flow switch rated for 4,350 PSI that senses water movement and automatically starts or stops the pump. By activating the pump only when adequate flow is present and shutting it down the moment flow stops, the MV60H prevents dry-run, cavitation, overheating, and pressure-related damage while improving safety, uptime, and overall energy efficiency.

Built with a rugged brass body and stainless-steel internal components, the MV60H delivers reliable flow detection in commercial wash bays, fleet cleaning systems, irrigation lines, and industrial water-handling circuits where dependable, repeatable actuation is essential.

Key Features

• Rated for 4,350 PSI operating pressure
• Automatically starts and stops pump based on real water flow
• Prevents dry-run, cavitation, and heat damage
• Low-restriction internal design for minimal pressure drop
• Rugged brass body with stainless-steel internals
• Compact inline horizontal layout for easy integration
• Reliable actuation in long hose runs and variable-duty systems

Construction & Durability

The MV60H is engineered for long-term reliability in demanding environments. Its brass housing resists corrosion from detergents and chemicals, while the stainless-steel sensing assembly maintains precision movement under vibration and temperature fluctuation.

Durability Benefits

• Corrosion-resistant brass body
• Stainless-steel actuator ensures consistent travel
• Sealed electrical terminals prevent moisture intrusion
• Designed for continuous duty in commercial wash systems

Performance & Operation

When downstream flow begins, the internal actuator moves instantly to send a clean electrical signal that starts the pump. When the trigger is released or flow stops, the actuator returns immediately, shutting the pump off to prevent heat buildup and dry-running.

Because activation is based on flow rather than pressure alone, the MV60H offers reliable protection against clogged nozzles, kinked hoses, starved inlets, or valve closures—conditions that may maintain pressure while actual flow collapses.

Performance Advantages

• Fast response for accurate pump control
• Prevents pump and seal damage during no-flow conditions
• Reduces shock loads on hoses and downstream components
• Minimizes nuisance trips and delayed restarts

Installation & Compatibility

The MV60H installs directly into a horizontal run using standard NPT threaded ports. Its compact form allows clean integration between the pump, unloader, or manifold without adding bulk to the plumbing layout.

Installation Highlights

• Standard NPT connections for universal compatibility
• Cast-in flow direction ensures correct alignment
• Sealed terminals simplify wiring to pump contactors or PLCs
• Supports both normally open and normally closed logic

Maintenance

Routine care helps maintain smooth, accurate actuation. Periodic inspection of electrical connections, leak points, and upstream filtration ensures optimal performance in demanding environments.

Maintenance Tips

• Verify tight, corrosion-free electrical connections
• Check for external leaks or damage to fittings
• Ensure filtration prevents debris from entering the flow chamber
• Flush with fresh water periodically in mineral-heavy systems

Applications

• Pressure washer and industrial wash systems
• Fleet washing and commercial wash bays
• Irrigation and process water systems
• Mobile wash rigs and equipment skids
• Any system requiring flow-based automatic pump control

Professional Advantages

The AR MV60H enhances equipment protection, reduces downtime, and increases efficiency by ensuring that pumps operate only when water is actually flowing. Technicians value its quick wiring and predictable behavior, while operators benefit from stable system performance, reduced seal wear, and protection from dry-run events.

Designed and tested to AR North America’s quality standards, the MV60H delivers dependable flow monitoring and automatic pump control for high-pressure applications where reliability is critical.