Gasketed plate heat exchangers ARES and Alfa Laval
Gasketed plate heat exchangers are composed of thin corrugated steel plates, which form channel spaces for media. There are also gaskets between the plates and the plate pack is stacked into a frame and compressed by tightening bolts together. This achieves high rigidity with high thermal conductivity.
The material of the plates is chosen with regard to the media used and the temperatures. Even drinking water can be aggressive towards stainless steel if it contains, for example, chlorides. The higher the temperature, the more corrosive are the effects.
AISI 316L stainless steel is used as standard in the production of heat exchangers. If the presence of chlorides and fluorides can be ruled out, a cheaper design from AISI 304L stainless steel can be considered. The plates can also be made of steel with a higher addition of molybdenum (Mo-steel 254 SMO): they then have a higher resistance to both chlorides and some chemicals. Alternatively titanium steel.
Types of gaskets
Plate and frame heat exchangers are manufactured for various pressures: low up to 10 bar, medium pressures PN16, PN25.
Common channel shapes are L, M and H. L channels are suitable where low pressure losses are required. Plate heat exchangers with H channels have a high transfer capacity; a high approximation of the temperatures of the primary and secondary circuit is achieved.
There are choices for connection to the plate heat exchanger. The exchangers are mostly equipped with external threads for small exchangers and flanges for larger ones.
Calculation and design of heat exchangers
We will design a suitable type of heat exchanger for your project. We just need to enter the expected operating values into our system (heat exchanger capacity, inlet and outlet temperatures or flow volumes, or the required max. pressure drops) to determine the best design for you.
Capacity overview for gasketed plate heat exchangers
Indicative capacity overview of outputs for gasketed ARES heat exchangers is for inlet/outlet temepratures 90/80 °C primary circuit and 75/85 °C secondary circuit. We will prepare the exact calculation of the required heat exchanger size on request, please email us your needs for a quote. Approximate prices are in the price list of heat exchangers.
|Exchanger capacity||Exchanger model||Pressure loss|
|20 kW||A1L x 8||30 kPa|
|50 kW||A1L x 17||45 kPa|
|100 kW||A1L x 35||45 kPa|
|150 kW||A1L x 55||50 kPa|
|250 kW||A2M x 45||50 kPa|
|500 kW||A2M x 91||50 kPa|
|1 000 kW||A4S x 103||50 kPa|
|2 000 kW||A4S x 249||50 kPa|
|5 000 kW||A6M x 249||120 kPa|
|10 000 kW||AWG8M x 259||200 kPa|
Plate heat exchanger applications
Gasketed exchangers are suitable
- for normal use instead of brazed heat exchangers, if the exchanger needs to be disassembled for cleaning;
- where it is necessary to have an option to expand the exchanger with additional plates;
- in industrial applications such as oil coolers or water coolers;
- for higher capacities (over 500 kW);
- for aggressive water/media;
- for pool heating (these exchangers do not contain copper brazing, which corrodes in chlorinated water).
The installation and operation manual can be downloaded here.