We are off to Dubai

Are you ready to embark on a journey of innovation and inspiration? Look no further than our exhibition stand at Automechanika in the dazzling city of Dubai! Presco Radiator Caps are joining many other UK businesses in the United Arab Emirates as part of the SMMT.

Why Dubai?

Dubai, known for its stunning architecture, vibrant culture, and international appeal, is the perfect backdrop for this groundbreaking exhibition. With its strategic location as a global business hub, Dubai attracts innovators and entrepreneurs from all corners of the world

When is it?

  • Date: 2-4 October 2023

Where can you find Presco Radiator Caps?

  • Venue: Dubai World Trade Centre
  • Hall Number: 7  (UK Pavilion)
  • Stand: C37

Who are we?

Presco Radiator Caps Ltd has manufactured Radiator Caps for over 30 years and is the leading after-market supplier in the UK. Both round and wing type metal and plastic caps are supplied for application in Automotive, Commercial and Agricultural vehicles, Compressor and Domestic DIY industries.

Come and see our newest range 

At our exhibition stand, we will be proudly showcasing the newest additions to the Presco range of radiator caps. Our dedicated team will be on hand to guide you through the latest trends, technologies, and innovations that are influencing the development of automotive and agricultural ranges.

What else is there?

Whether you are a seasoned industry professional or a curious enthusiast, you will find something to captivate your interest at the trade show.

  • Live Demonstrations: Experience the latest products and services up close with live demonstrations that highlight their functionality and value.
  • Interactive Workshops: Engage in hands-on workshops led by industry experts, where you can learn practical tips and tricks.
  • Networking Opportunities: Connect with like-minded individuals, exchange ideas, and build valuable professional.
  • Q&A Sessions: Have burning questions? Have them answered by some of industry leaders.

Want to beat the queue?

If you wish to arrange a meeting whilst we are there please contact Simon Archer MBE (Managing Director) via email.

[email protected]

See you there!

Why are radiator caps important?

A radiator cap is a critical component in a car’s cooling system, and its presence serves several essential functions. To understand why cars need a radiator cap, it’s essential to grasp the basics of how a car’s cooling system operates and the role of the radiator within that system. Here’s a detailed explanation:

Cooling System Overview

  • A car’s engine generates a significant amount of heat during operation. If this heat is not managed properly, it can lead to engine damage or even engine failure. To prevent this, cars are equipped with a cooling system designed to regulate the engine’s temperature

Role of the Radiator

  • The radiator is a key component of the cooling system. Its primary function is to dissipate heat from the engine coolant (a mixture of water and antifreeze) as it circulates through the engine. The hot coolant flows into the radiator, where it releases heat to the surrounding air, cooling down before it returns to the engine to repeat the cycle.

Now, let’s delve into why a radiator cap is necessary within this system…

Maintaining System Pressure

  • The radiator cap serves as a pressure relief valve for the cooling system. It is typically located at the top of the radiator. One of its main functions is to maintain a specific pressure level within the cooling system, usually around 13-16 pounds per square inch (psi). This pressure is higher than atmospheric pressure, and it’s crucial for several reasons:
    • Raising the boiling point: Increasing the pressure in the cooling system raises the boiling point of the coolant. This is important because it allows the engine to operate at higher temperatures without the coolant turning into steam. Water alone would boil at a much lower temperature, and using a mixture of water and antifreeze helps prevent freezing in cold weather.
    • Improved heat transfer: Higher pressure enhances the efficiency of heat transfer in the radiator, helping the cooling system dissipate heat more effectively.

Preventing Overheating and Boiling Over

  • Without a radiator cap, the cooling system would operate at atmospheric pressure. This would significantly lower the boiling point of the coolant, making it more prone to boil over and potentially causing engine overheating. The cap’s pressure relief valve opens when the pressure inside the system exceeds the rated pressure, allowing excess coolant and steam to escape into an overflow or expansion tank.

Returning Coolant

  • In addition to maintaining pressure, the radiator cap also acts as an access point for adding coolant to the system and for checking the coolant level. It allows coolant to be added when necessary and also provides a way for air to escape as the system is filled, ensuring there are no air bubbles that could impede proper cooling.

In summary, a radiator cap is a critical component in a car’s cooling system because it helps maintain the necessary pressure, prevents overheating and boiling over, and serves as a point of access for adding coolant. Without a properly functioning radiator cap, the cooling system’s efficiency would be compromised, potentially leading to engine damage or failure due to overheating.


AUTOMECHANIKA FRANKFURT, GERMANY, 08/09/2020 – 12/09/2020. Hall 3.1, Part of the SMMT British section, individual stand details will follow

EQUIP AUTO SHOW, ALGERIA, 02/03/2020 – 05/03/2020. Stand details will follow

EQUIP AUTO SHOW, ALGERIA, 02/03/2020 – 05/03/2020. Stand details will follow

Presco Radiator Caps will be showing at the following exhibition shows during 2020

Presco Radiator Caps will be showing at the following exhibition shows during 2020