Model designations indicate the plate model, frame model, and number of plates, in that order.

Each heat transfer plate has a plate gasket, and the required number of plates is suspended from the guide bars. They are then sandwiched between two thick steel plate frames and fixed with tightening bolts and nuts, compressing the plate gaskets.

The element configuration diagram is a two-dimensional representation of equipment usage conditions, design specifications, and plate arrangement (assembly order).

Conventional models include the herringbone type RX, LX, UX, and SX, the corrugated type EX (which is resistant to dirt and sludge), GX for slurries, YX for condensers, semi-welded WX, and FX for food products.

For herringbone pattern heat transfer plates, even if the heat transfer plates have the same outer shape, the heat transfer characteristics can be changed by changing the angle of the waves on the heat transfer surface.
It is possible to create moderate characteristics by combining two or more types of heat transfer plates of the same size but with different angles.

Heat transfer plates are made up of an A plate and a B plate.
The A plate and B plate are arranged alternately.
When an A plate is turned upside down it becomes a B plate, and when a B plate is turned upside down it becomes an A plate.

Designations of A and B Plates

A Plate B Plate Plate gasket
orientation Herringbone plate
heat transfer surface Corrugated plate
heat transfer surface The comb pattern
is on the right side. The comb pattern
is on the left side.

The first heat transfer plate on the S. frame side called the D plate, and the last heat transfer plate on the E. frame side called E plate.
You can also see them on the element configuration diagram.
All of the portholes on the surface of the D plate are sealed to prevent the flow of fluid.

Those with N before a frame model are rubber boots, with KN are metal boots, and with TN are tube flanges.
The type of nozzle is selected according to the fluid used and temperature conditions.

• N nozzle
• TN nozzle
• KN nozzle

Frames for a small number of plates are indicated by NJ, and those for a large number of plates are indicated by NP.
There are also H, S, U (NHP, TNUJ, etc.) which indicate pressure resistance of the equipment.
In addition, R is used to indicate steam heating, and M is used to indicate marine frames.

The model and 6-digit serial number are shown on the nameplate attached to the main unit.
You can check the model number and serial number from the cover of your drawing, element configuration drawing or assembly drawing.

Normally, a fluid flows through the heat transfer plates in a heat exchanger only one time (single-pass). However, by arranging the hole opening specifications of the heat transfer plates the fluid can be made to flow through the heat transfer plates two or more times, for even greater heat exchange.
Such plate arrangements are called multi-pass.

Notes on multi-pass designs
- If the plate arrangement is incorrect, the operation and performance of the heat exchanger will be significantly affected.
- When increase/decrease the number of plates, which is an advantage of plate heat exchangers, it might necessary to change the piping when the position of the E. frame is changed.
- If the actual piping is not as planned in the drawing, the performance as designed might not be obtained.

CS frames are painted.
(HISAKA standard finish color: Munsell # 5BG3/6). SUS frames have a hairline finish.

These items are packaged as shown below.

The standard accessories are packed in a cardboard box and included with the main unit.

End tubes are installed on the main unit. Other optional parts are packed with the standard accessories.

Please check the installation and connection manuals for more information.

Package the product so that the heat transfer plates are not deformed.
Shipping boxes are available from HISAKA.

Please go through this page

To ensure that your product can be used for long time, maintenance and inspection should be performed on a regular basis.
The maintenance and inspection cycle varies depending on usage conditions. In general, for new installations, perform maintenance and inspection once a year.
Based on the results, set an appropriate maintenance/inspection interval.
Note that it might not be possible to remove dirt by only washing with water.
We recommend chemical cleaning with Full Service Package and performed at a HISAKA plant.

S-1 adhesive is used for conventional models, and a special silicone adhesive is used for silicone rubber, and a special double-sided tape is used for TCG.
If slit-in gaskets are used on the heat transfer plates, adhesive is not required on the surfaces of the intermediate plates or E plate.

There are notches (slits) along the periphery of the plates. By inserting the protrusions on the plate gaskets into these slits, the gaskets can be attached to the heat transfer plates without using adhesive.
(Adhesive is used on D gaskets and distance piece gaskets.)
Note that slit-in gaskets cannot be used with some heat transfer plates.

Stencil symbols and colors are used to identify the materials that plate gaskets are made of.
Refer to the gasket material identification table for further information.

The number of intermediate plate gaskets that is required is (total number of plates - 1). In addition, one set each of the following is required: D gasket and distance piece gasket to stick to the D plate, E gasket to stick to the surface of E plate (although these might not be required for some models).

In addition to the number required for a single-pass heat exchanger, the following gaskets are also required: D gaskets and E gaskets that contact movable frames and barrier plates, and a number of E nozzle gaskets equal to the number of nozzle portholes.

If expensive gaskets, such as fluororubber and fluororesin cushion gaskets, are used for processing, inexpensive synthetic rubber such as NBR or EPDM are used on the utility side.
In this case, the plate gaskets must be cut and stuck accordingly.

When the equipment is delivered, the heat transfer plates are marked with a lot number that identifies the material.
Make a note of the lot number and contact HISAKA for details.
Be aware not to cut your fingers on the end surfaces of the heat transfer plates. Ensure to wear cut resistant gloves when handling the plates.

Various symbols such as A-, AG-, G-, L-, and LR- appear in front of the material indication. These identification symbols are unique to HISAKA, and indicate gasket shape and other properties. They do not indicate material.
In particular, A- indicates a slit-in gasket.

The tightness of plates in a plate heat exchanger is managed according to the dimensions between the S. frame and E. frame.
It is not necessary to manage the torque.
The tightening dimensions are indicated on the nameplate and the assembly drawing.

Kindly contact HISAKA for more information.

Place a weight on the plate and let it sit for at least 15 minutes.

HISAKA provides the heat exchanger unit that is best fit for customer’s situation and conditions.

If the nozzle on the heat exchanger uses a metal boot (TN, KN), please prepare a piping gasket.
If it uses a rubber boot (N nozzle), a piping gasket is not required.

It is necessary to perform maintenance on plate heat exchangers.
Sufficient maintenance space is required to disassemble the equipment and to remove/install the heat transfer plates.

The gasket material and plate arrangement might be different for the B side and the A side. If so, the equipment might not operate correctly.
Kindly contact HISAKA for assistance.

We can provide these instruments.
We can also provide short piping for attaching these instruments.

Some models can be installed horizontally, but in general they should be used in the orientation shown in the assembly drawing.

- A variety of fluids are compatible
- Fluids that contain solids are also supported.

- Vapor condensation is possible.

- Dangerous fluids can also be handled provided it is paired with utility.

Remove foreign matter at a previous step, so that it does not enter the heat exchanger.
Feel free to contact HISAKA for assistance.
(Services provided by HISAKA: Torunende, inner strainer)
We also recommend disassembling the machine to perform cleaning on a regular basis.

We can provide parts that will cover the top and sides of the heat transfer plates.