Mini Matic 4B Unloader Valve with Adjustable Injector – 180 Bar – Part No: 20890 / 20891

Regular price £105.00

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Compact 180 Bar unloader valve with built-in bypass and adjustable chemical injector. Fits XT and RC pumps. Available in 7–10 and 11–18 L/min flow variants.

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Estimated delivery time : 09 September - 15 September.

Mini Matic 4B Unloader Valve with Adjustable Injector – 180 Bar – Part No: 20890 / 20891

£105.00

Ask about Mini Matic 4B Unloader Valve with Adjustable Injector – 180 Bar – Part No: 20890 / 20891

Product Details

The Mini Matic 4B Unloader Valve with Injector is a compact, high-performance pressure-regulating valve designed for small to medium pressure washing systems. It automatically relieves pressure from the pump when the trigger is released, helping protect components and reduce wear.

This model features an integrated adjustable chemical injector and built-in bypass, allowing users to draw detergents directly into the flow stream, making it ideal for mobile setups, detailing rigs, or small wash bays requiring detergent application.

Rated to 180 Bar (2600 PSI), the Mini Matic 4B supports flows up to 18 L/min and is compatible with a range of Annovi Reverberi XT and RC pumps.

Specifications

Key Specifications

Model Mini Matic 4B with Injector
Max Pressure 180 Bar / 2600 PSI
Max Flow
Part No 20890 – 7–10 l/min (XT pumps)
Part No 20891 – 11–18 l/min (XT, RC pumps)
Inlet 1/2″ BSP Female
Outlet 3/8″ BSP Male
Bypass Built-in
Injector Adjustable chemical injector (integrated)
Material Brass and stainless steel
Compatible Pumps Annovi Reverberi XT, RC series
Function Trapped pressure style – pump depressurised, line remains pressurised

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Delivery & Returns

DELIVERY

Free UK Delivery on all orders over £150.
From £2.99 UK Delivery on orders under £150.

RETURNS

If you do not like the product you can return it within 15 days. We have an easy and hassle free return policy. Please look at our Delivery & Returns section for further information.