Using Hydraulic Equipment, THS Service Technicians
will Disassemble and then Tighten a PHE to OEM Specifications
A portable chemical flushing unit consists of a pump, tank, filter and hoses. THS service technicians pump a citrus based cleaning chemical or mild acid solution through the heat exchanger for 6-8 hours. During the flushing any debris or contamination is collected in a bag filter with a magnet.*The volume and velocity of the pump package is limited, PHE’s over 3 ft in height and with connections over 2", will not experience significant benefits using this sized pump package since most power supplies available are 120V
Clip or ball style gaskets can be replaced onsite during service. The most effective method to remove glue style gaskets is to complete the service offsite. Plates are submerged in either a caustic acid bath or nitrogen to break the glue bond. Plate and/or gasket delivery when in stock is typically 1-3 weeks. Custom is approximately 6-12 weeks as they must be molded and/or stamped.*Chances of a PHE leaking increases to 50-60% probability when re-assembling a unit using gaskets that are over 10 years old, visibly damaged or brittle, causing the PHE not to seal completely. In addition, each time a PHE is taken apart the gaskets can be potentially damaged or may not reseat correctly when retightened.
accessibility to mechanical rooms is often severely limited
As a heat exchanger becomes fouled with dirt, debris or scale, often the modulating valve provides additional hot or cold liquid to help compensate for the loss of efficiency of the heat exchanger.
Over time the control valve will continue to open fully. Unfortunately, on the hottest or coldest days, even with the valve fully open the heat exchanger cannot meet the thermal transfer requirements and the situation becomes critical.
Monitoring just the operating temperature provides a false sense of security. Recording the difference in the outlet and inlet pressures provides a more accurate result of the amount of fouling.
Fouling equal to the thickness of a piece of paper represents a 20% loss of thermal efficiency. In addition, the energy cost for pumps increases since the pump must work harder to overcome the increased pressure resistance through the PHE
T.H. Industrial Solutions Inc. (THS) has been servicing industrial heat exchangers and solving process problems across Canada since 2009. THS head office is located in Pickering, Ontario with a 6,000 square foot service center in Hamilton, Ontario.
Today there are fewer qualified people in this industry that know the products and understand the applications. Utilizing hands on experience and knowledge that has been gained by our THS sales and service technicians for over the past 30 years, we will take the time to understand what you require and strive to provide a prompt, educated and accurate response at a competitive price.