Unloader valve for maximum pressure 390 bar and maximum flow rate 40 l/m with knob and microswitch VB 350 PN: 60.1730.00

VB350 Unloader Valve with Microswitch – Total Stop Pressure Regulator

The VB350 unloader valve with microswitch is a heavy-duty pressure regulating valve designed for professional high-pressure washer systems.

When the spray gun is released, the valve diverts water to bypass and activates the microswitch to stop the motor instantly.
This total-stop function prevents overheating, reduces wear, and significantly extends pump and motor lifespan.

Its brass construction ensures reliable operation in demanding industrial cleaning environments.

Main Features

• Built-in total stop microswitch

• Automatic motor shutdown

• Ultra high pressure capability

• Protects pump seals and pistons

• Reduces vibration and pressure shock

• Energy saving operation

• Heavy-duty brass body

• Suitable for hot water systems

Technical Specifications

How It Works

Trigger released → bypass opens → microswitch stops motor

This prevents:

• Pump overheating

• Seal damage

• Pressure spikes

• Energy waste

The system operates safer and lasts longer.

Applications

• Industrial pressure washers

• Car wash equipment

• Hot water cleaning machines

• Heavy equipment washing

• Continuous duty cleaning systems

Why Choose VB350 with Microswitch

Ideal for machines requiring automatic stop functionality.
Improves safety, reduces maintenance costs, and increases equipment life in high-pressure applications.