Immune to corrosion

Worker about to pull start a Honda Chemical water pump, on a pier
Worker about to pull start a Honda Chemical water pump, on a pier
A Honda Chemical water pump
A Honda Chemical water pump

Harsh, agricultural fertiliser or industrial waste – our Chemical pump doesn’t mind either. It can deal with debris too.


Engineering for life logo.

Built to last

Our chemical pump’s housing, volute and impeller are all made of reinforced thermoplastic which gives top-class resistance to chemicals and abrasive materials - ensuring a long working life.

Deadly liquids

The ultimate pump for professionals shifting volatile chemicals.

Taking on the most demanding jobs, our specially designed Chemical pumps have been built to withstand material others just can’t handle. Sulfates, nitrates and chlorides are no problem – as well as pretty much any other corrosive compound. They’re ideal for commercial and agricultural use.

Close up of high flow rate/chemical, being used by model.


Many salts and acids erode metal. That’s why our Chemical pump has parts made of thermoplastic.

Illustration showing high flow rate/chemical engine.

The EPDM seal (A), special thermoplastic impeller (B), and volute (C), deal with chemicals – no problem.

Our Chemical pump’s housing, volute and impeller are made of reinforced thermoplastic – it gives top-notch chemical resistance. The seals are made of EPDM (ethylene propylene diene monomer), which is a specialist rubber material that’s resistant to a wide range of chemicals.

Shifting serious water

Our chemical pump can also handle water with solids up to 5mm in diameter – there's even a strainer to ensure nothing bigger gets through. It's capable of moving a large amount of it, too – up to 833 litres per minute.

Close up of the strainer.

The strainer ensures only debris 5mm and smaller passes through the machine.

Close up of high flow rate/chemical pump.

A closer look

Get the all the details on our Chemical pump.

High flow rate/chemical water pump. WMP 20 Pumps 833 litres a minute with 2.5 bar of pressure and a 1 hours 30 minutes running time.

View full specification

A sealed system

An effective pump must create a partial vacuum.

Illustration showing total head of high flow rate/chemical water pump.

'Total head' (A) is the maximum height the pump can lift water – from the suction head (B) to to discharge head (C).

What makes our Chemical pump so effective is the craftsmanship of the seals – they ensure air can't be drawn in, which causes the all-important vacuum to be lost. The impeller-to-volute clearance has also been designed in this way. It all means it not only has an impressive flow rate and pressure – but it can keep it up; it can go for up to one hour thirty minutes before you need to add more petrol.

Pushing power

Also known as ‘total head’, it’s the maximum height the pump can force water from suction head to discharge head. Our Chemical pump can push it up to 25m – that’s around the length of three buses parked end to end. And the further you can pump the water, the less it’ll weigh on your mind.



Illustration showing water pump engine.

The EPDM seal (A) specially-engineered impeller and volute clearance (B), as well as sealed aluminium casing (C), ensure a proper vacuum. This all maintains top performance.

Close up of high flow rate/chemical water pumps.

Tough build

Come rain or shine, our OHV 4-stroke engines won’t let you down. But especially come rain.

As you’d expect from a Honda, our water pump engines are reliable and have low emissions – automatic decompression makes them so quick and easy to start. To keep everything in check, they also have Oil Alert™. This prevents engine damage by automatically shutting the unit down if the oil drops below a safe level.

Low vibration

Spring mounts reduce stress on the machine.

Close up of rubber mounts.
Close up of high flow rate/chemical water pump.

Frame protection

Our Chemical pump’s heavy-duty full frame offers protection to the unit as well as a handy handle for transportation. Anti-vibration engine spring mounts reduce mechanical stress on the unit, so it ticks over without juddering or making a racket.

Close up of high flow rate/chemical water pump.

A watertight warranty

Like our water pumps, a Honda warranty is the best you can get.

Honda 2 year domestic warranty logo and 1 year professional warranty logo.

We work constantly to make the most reliable and effective water pumps out there. They’re driven by powerful and efficient 4-stroke engines, and with mechanical seals and cast iron volutes and impellers, they’re built to last.

Made to match

Our water pumps just keep on going. That’s why we can offer one of the most comprehensive warranties out there, too. It maintains the same value throughout the warranty period – meaning the last day of cover is exactly the same as the first.

High flow rate/chemical water pumps on location.