TREATMENTS AND FLUIDS
Get to grips with hard to find leaks
There are many problems faced by engineers relating to troublesome leaks and moisture in the system. There are various ways of fixing these problems using traditional methods, but increasingly engineers are turning to system additives to solve these problems, and there are some very useful products available these days as Tom Fitzsimons, area sales manager at Pump House, explains.
T 28 June 2019
he F-Gas Regulations are designed to reduce the amount of fluorinated gases used in the EU by 79% by 2030. In the refrigeration and air conditioning industries, this is being done by a controlled restriction on quotas that manufactures or importers can use. In addition, the F-Gas Regulations require that leak checks are done on a regular basis and, should a leak be found, that it is repaired as soon as possible. Apart from the legal requirement to repair system leaks as soon as possible after they are discovered, there is the practical advantage that repairing leaks has, because refrigerant prices are continually fluctuating, and therefore leaking systems could become more and more costly, and are also very damaging to the environment.
Sometimes leaks prove very difficult to locate, especially in pipework running through walls and ceiling voids. Even if found, accessibility to do the repair can be a major problem and may mean extensive work to get to the repair site.
There are a few approved methods for finding leaks, such as electronic leak detectors, spray-on liquids, and UV dye, and in recent years, more and more engineers are turning to system additives for solving their leak problems.
UV dye is an additive which mixes with the system oil, making it fluorescent. After the product is fully mixed into the oil, the engineer can simply scan the system with a UV light to find the leak. This is particularly useful if
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