Product Overview

The Annovi Reverberi Mini Matic 4B Unloader Valve is a pressure-regulating valve designed for compatible Annovi Reverberi pressure washer pumps.

When the pressure washer trigger gun is released, the Mini Matic 4B automatically relieves pressure from the pump and diverts the water through its built-in bypass. This prevents the pump from continuing to operate against a closed outlet and helps protect the pressure washer system.

Rated for a maximum pressure of 180 Bar / 2,600 PSI and a maximum water flow of 18 LPM, this compact unloader valve has a 1/2″ female inlet and a 3/8″ male outlet.

The Mini Matic 4B is compatible with Annovi Reverberi HPW, XT, RC, XM, RR and RK pump ranges, making it suitable for pressure washer repairs and replacement installations.

Key Features

• Pressure-regulating unloader valve
• Automatically relieves pump pressure at shut-off
• Built-in bypass system
• Maximum pressure of 180 Bar / 2,600 PSI
• Maximum water flow of 18 LPM
• 1/2″ female inlet
• 3/8″ male outlet
• Compact replacement control valve
• Suitable for several Annovi Reverberi pump ranges
• Ideal for pressure washer repairs and maintenance

Pump Compatibility

The Mini Matic 4B unloader valve fits the following Annovi Reverberi pump ranges:

• HPW
• XT
• RC
• XM
• RR
• RK

Important Ordering Information

Check the complete model number shown on your Annovi Reverberi pump before ordering. Pump specifications and unloader arrangements can vary within a model range.

If you are unsure about compatibility, please contact us with your pump model, pressure washer details or a clear photograph of the existing unloader valve.

Bulk purchase discounts are available on request.

Contact Flowjet Cleaning Equipment

For compatibility advice or assistance selecting the correct pressure washer component, please contact:

Flowjet Cleaning Equipment LTD
Unit 4, Gatebeck Farm
Gatebeck, Kendal
LA8 0HW
United Kingdom

Telephone: 015395 66193
Website: www.flowjet.co.uk