There are different type of heat exchangers, including condenser, feed water heater, fin-fan air cooler, shell-and-tube heat exchanger, and boilers.
The most important problem for heat exchanger are pitting, cracking, and corrosion.  It is especially important for industries to inspect heat exchangers on a regular basis, otherwise these defects can cause leaks and lower performance, and even environmental problems. In the cases which they are built by ferromagnetic tubing, the require inspection technique, namely RFT, NFT, MFL, NFA, and IRIS UT, must be used. We develop reliable with fast response time probes for power generation industries. They are combined with Viva II test instrument and “Titan” acquisition and analysis software. It is possible to design a specialized probe for your application, too.