Integrity Testing

Routine Heat Exchanger Integrity Testing and Hydrostatic Testing

The Process

We ensure testing of your Heat Exchangers is carried out in conjunction with the manufacturers recommendations

Heat Exchanger Integrity Testing (H20)

Our Heat Exchanger Integrity Testing system is the most advanced method on the market for locating defects in a Heat Exchanger without having to open it up on site. We recommend that all Heat Exchangers are tested every 6 or 12 months  to ensure their is no cross contamination between the plates which can cause a major risk to consumer health,

We use a Low pressure water integrity test that uses a series of highly sensitive instruments to measure flow in milliliters per second from one circuit to the other. Typically one circuit is filled up to 3 Bar, whilst the other circuit is lowered to 0 Bar (atmospheric). Should there be any defects the instrument can detect minute droplets escaping into the atmospheric side. Once the test is completed the system automatically switches the pressure side over to test the other side of the plate ensuring no defects are missed.  Should we find a defect within your Heat Exchanger, our engineers can react immediatley to rectify the issues and get the unit back up and running within a matter of hours.
Benefits of our Heat Exchanger Integrity Testing
•5 minutes per section testing time 
•No damage or stress to the plates (low pressure) 
•Both circuits are tested to ensure nothing is missed 
•Any glycol left in the pack can be used to carry out the test (no wastage) 
•Duo safety packs can be tested by the same system (unlike any other) 
•Does not require gases (gases cannot pass through water left in the exchanger) 
•Does not require saline solution
Non-destructive testing of Tanks, Vessels and Spray Dryers. For more information please click here

Hydrostatic Testing

If your Heat Exchanger is opened for cleaning, inspection, service or repair, it is extremeley important to carry out a Hydrostatic test prior to going back into production. This Hydrostatic test differs from the low pressure H20 test as it requires the Heat Exchanger to be tested at higher pressures that are recommended by the manufacturer. This is important from a due diligence point of view, as their could be a potential risk of operators being harmed by hot liquids or chemicals from leaking gaskets. In addition it is another safety measure to ensure that when the plate pack was closed the plates were not damaged in the process (potential for cross contamination).
Our trained engineers fill the Heat Exchanger circuits with cold water from site until the circuit is completley full. The pressure is then built up using a hydrostatic pump until the desired pressure is achieved. The test is then monitored for approximately 30 minutes where the pressure gauges are checked for pressure drops.
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