All-welded Plate Type Heat Exchanger “XP Series”

XP Series

XP Series are plate type heat exchangers uniquely developed based on an entirely new concept aimed at realizing Ocean Thermal Energy Conversion systems, which is our business goal, appropriate for high temperature and pressure use that does not need gaskets.

It can be used as reboiler or condenser at distillation towers and at chemical plant since it can vaporize and condense efficiently with limited pressure loss. Also, the high performance and compactness of the heat exchanger is attracting attention as an alternative to conventional tube type for heat recovery of gas to gas.


Evaporator for OTEC

Condenser for OTEC

For usage in new operating environments, we can implement an small-scale preliminary experiment beforehand and obtain operating data necessary for optimizing actual equipment.

Please do not hesitate to consult us.




1. Low-pressure Loss / High Heat Transfer Efficiency

The XP Series has a unique plate pattern and structure that decreases unnecessary flow turbulence, which does not relate to heat transfer performance and achieves low-pressure loss.

XP Series can reduce pressure loss drastically caused by fluid velocity compared to versatile plate type heat exchanger. Therefore, under acceptable pressure loss, it is possible to design for a faster flow rate than general purpose types so that higher heat transfer performance can be obtained than ever before.

2. Space Saving

Space for new equipment can be made by replacing shell and tube type heat exchanger with XP Series, since our heat exchangers are far more compact for the same heat transfer load.

Especially for processes involving gas, the space saving effect will be amazing in some areas.

3. Low Maintenance Cost

XP Series does not use gaskets. It is all-welded structure.

Basic maintenance work (cleaning) is done by chemical solution without disassembling.

Because it does not use gaskets, you can choose from a various range of chemical solutions.

Also, as for the casing, the sides of heat transfer plate can be opened, so it can be cleaned by high pressure jet if needed.

4. High Performance Enables by High Design Freedom

We can manufacture heat exchangers using 8 different heat transfer plate sizes ranging from small to large by uniquely developed manufacturing technology.

We offer high performance heat exchangers with suitable flow velocity and flow direction according to your application by combining out unique basic structure with chosen position and size of exit and entry nozzle.

5. Energy Saving

It is possible to reduce temperature difference at the ends compared to conventional heat exchanger.

If temperature difference at the ends is reduced, the amount of evaporation and condensation can be increased, and input amount of heat against amount of production can be decreased.

6. Design / Evaluation service

We are researching and developing heat exchangers by confirming performance repeatedly through heat transfer experiments using actual size heat exchangers to make it the best low-pressure loss and high-performance heat exchangers.

Heat transferring data gained through these experiments allows us high level heat transferring design that most suits the customer's service conditions.

We will  quickly consider and share the benefits of optimized heat exchanger design for our customer's requirements.


Useable Conditions

 Operating Temperature : −196~ 520ºC

 Maximum Operating Pressure : 4MPa

 Maximum Attainment pressure : 30~40MPa



 Titanium(Gr.1&Gr.2) etc




Applications (examples)

Evaporator, condenser and plate type condenser for power generation plant.

Condenser and reboiler for BTX

Anhydrous cooler for desulfurization facility

Heat exchanger for gas to gas and gas to liquid

Steam condenser and drain cooler


We can assist you in replacing existing tube type with plate type, including implementing preparatory experiments.



Track Records


Law and Regulations

・ASME Section VIII Division 1(U-Stamp) *1

・Industry Safety and Health Act

   (First Class Pressure Vessel, Second Class Pressure Vessel)

・Electricity Business Act

・Various Classification Standard (NK, Lloyd's, DNV GL)

  (*1 Under review)



We will propose the most suitable XP Series to fit your conditions of use.

For Details, Please send your design conditions of the project/site by filling sheets in the link below.