Identify restrictions, verify performance, protect productivity

Mould Tool Water Flow

& Pressure Tester

Fast, accurate, workshop-proven

Flow & Pressure Testing

Test and compare cooling circuit flow and pressure to identify restrictions fast.

Air Purge & Filtration

Air purge circuits after testing, with filtered return water to reduce contamination.

Workshop-Proven Design

Robust, reliable equipment proven in toolrooms and moulding shops since 2007.

Reliable testing of cooling water circuits

for injection mould tools

This water flow and pressure tester is designed specifically to test the cooling water circuits of plastic injection mould tools. It can also be used for other applications where accurate pressure and flow testing of components is required.

Fast, repeatable water circuit testing

The unit enables fast, repeatable testing of individual water circuits, allowing flow and pressure performance to be assessed and potential blockages or restrictions identified before production is affected.

Core functionality

What the tester does

  • Tests cooling water circuits up to 10 bar pressure
  • Holds circuits at test pressure for reliable verification
  • Compares flow rates to identify partially blocked or restricted channels
  • Air purges circuits after testing to remove residual water
  • Filters all return water to remove contamination and foreign matter

The integrated filtration system is particularly effective in hard water areas or where contamination build-up is common within cooling circuits.

Built for fast, accurate workshop testing

The tester has been developed as a practical piece of workshop equipment — quick to set up, simple to operate, and robust enough for daily use in toolrooms and moulding shops.

What engineers can do

It allows engineers to:

  • Quickly verify the condition of cooling circuits

  • Identify uneven or reduced flow across circuits

  • Detect issues early, before tools are installed or returned to production

  • Leave circuits clean and dry after testing

Technical specification

Pump group

  • Stainless steel pump manufactured by Lowara

  • Maximum pressure capability of 12 bar

  • Non-return valve

  • Pressure transducer

Flow manifold group

It allows engineers to:

  • 3/8” BSP flow connections

  • Isolating valve (Valve A)

  • Brass-bodied vane-type flow meter rated from 2–40 litres per minute, with pulsed output to PLC.

  • Integrated air purge valve (Valve C)

  • Pressure transducer rated 0–25 bar with 4–20 mA, loop-powered output.

Return, fill & purge manifold group

  • Return manifold with isolating valve (Valve B) and return pipework

  • Large-capacity water filter fitted with disposable filter element

  • Integrated fill and purge manifold with air inlet

  • Non-return valve to prevent water ingress into the airline

Control system

  • Control panel built by a Mitsubishi drives specialist

  • Manufactured in accordance with BS ISO 9001

  • Incorporates Mitsubishi Electric PLC, HMI and inverter.

Proven, long-term reliability

This water tester has been in continuous use since 2007, with early units still operating trouble-free on a daily basis. It has proved popular with both mould toolmakers and injection moulding shops, thanks to its robust design and dependable performance. All components are UK-sourced and of European manufacture, ensuring quality, availability, and long service life. Key components include pumps from Lowara (Italy) and flow control equipment from Kobold (Germany), resulting in a durable, accurate, and reliable piece of equipment designed to withstand the demands of a busy workshop environment.