R134a Recharge Hose with Gauge and Brass Fitting for Duracool / Multicool / Climapure Cans

R134a Recharge Hose with Gauge and Brass Fitting for Duracool / Multicool / Climapure Cans (Reference: DC4000)

This professional recharge hose is specially designed to facilitate the maintenance of automotive air conditioning systems equipped with R134a gas. Compatible with Duracool, Multicool and Climapure ecological refrigerant gas cans, it is an essential tool for any automotive professional or experienced individual wishing to service their air conditioning system independently.

Benefits and Use Cases

This recharge hose is primarily aimed at garage owners, automotive mechanics and experienced individuals who wish to recharge the air conditioning of vehicles equipped with R134a gas. It allows for top-up recharges when the air conditioning lacks power or is no longer cooling effectively.

Thanks to its integrated gauge, you can precisely monitor the circuit pressure during recharging, thus avoiding the risks of overcharging which could damage the compressor. This feature is particularly appreciated by professionals who must comply with manufacturer pressure specifications to ensure optimal system operation.

Using it with Duracool, Multicool or Climapure ecological gases allows you to reduce environmental impact while maintaining excellent cooling performance, superior to that of traditional R134a.

Technical Specifications and Innovation

The DC4000 hose stands out for its robust construction with a crimped low-pressure brass fitting. This one-piece design eliminates the risk of leaks at the connections and ensures a perfect seal even after extensive use.

The integrated gauge clearly displays the circuit pressure, allowing compliance with the values recommended by automotive manufacturers (generally between 1.5 and 2.5 bar on the low-pressure side depending on ambient temperature). The dial is large enough for easy reading, even in difficult working conditions.

The flexible hose provides an optimal length for easy access to vehicle service valves, even when they are difficult to reach. Its composition resists refrigerant gases and temperature variations, ensuring long-term durability.

Compatibility with Duracool, Multicool and Climapure cans allows the use of next-generation refrigerant gases, more environmentally friendly and often more efficient than traditional R134a.

Installation and Use

Using the DC4000 hose requires a few essential precautions to ensure safety and efficiency. Before any intervention, make sure that the engine is switched off and cooled down, and that you are wearing personal protective equipment (gloves, goggles).

Begin by locating the low-pressure service valve on your vehicle, generally located on the return line to the compressor and identified by a blue cap or a larger diameter than the high-pressure side.

Firmly connect the hose fitting to the service valve, then screw the gas can onto the other end of the hose. Check that all connections are properly tightened to avoid leaks.

Before opening the can valve, start the engine and activate the air conditioning to maximum (minimum temperature, maximum fan speed). Gradually open the can valve while monitoring the gauge. The pressure should increase gradually without exceeding the recommended values.

Once the recharge is complete, close the valve, disconnect the hose and replace the protective caps on the service valves.

Tips, Synergies and Expert Advice

To optimise the efficiency of your recharge, we recommend gently warming the can in a bowl of lukewarm water (never above 40°C) before use. This tip improves the gas output pressure and speeds up the recharging process.

Complete your equipment with our Duracool 12a cans available in our refrigerant gas range. These ecological gases offer superior performance to R134a while being more environmentally friendly (reduced global warming potential).

Also consider equipping yourself with a leak detector to check the system for leaks before recharging. An unrepaired leak would make the recharge temporary and costly.

Common mistake to avoid: Never recharge a completely empty system without first checking for significant leaks. A system that empties completely generally has a leak that must be repaired before recharging.

For professionals, integrate this hose into a air conditioning maintenance kit including high and low pressure gauges, a leak detector, and an air outlet thermometer for a complete diagnosis.

During the summer period, perform your recharges preferably in the morning or at the end of the day to avoid excessive temperatures that distort pressure readings.

Technical Specifications