Plate Heat Exchanger

2 Operation and Maintenance Manual

Thank you for purchasing a Hisaka Plate Heat Exchanger.

Manuals for the HISAKA Plate Heat Exchanger consist of the following six related documents.
1. Installation Manual, 2. Operation and Maintenance Manual, 3. Gasketting Manual (Total 10 Models), 4. Plate
Cleaning Manual, 5. "Slit-In" Type Gasketting Manual, and 6. Mixed Gasket Materials Manual.
These documents are available at our website (http://www.hisaka.co.jp/english).
Drawings (Plate Arrangement Drawing and Assembly Drawing) of supplied model are to be supplied with the
equipment.
Use as directed in these Manuals for safe and proper operation and maintenance.
Keep these Manuals in hand.
Introduction

<Plate Heat Exchanger>

Plate Heat Exchanger (hereinafter PHE) performs heat exchanging by transferring heat between hot and cold fluids
flowing alternately through heat transfer plates, which are thin metal sheets having fine corrugated patterns.

<Use of Equipment>
To prevent injury to persons, do not use the equipment for anything other than its intended purpose and specification. Also,
installation and maintenance shall be carried out according to these Manuals.

<Trained Operators>
Operation, maintenance/inspection, or installation of the equipment shall be performed by personnel/operators who have
undergone training regarding safety and danger prevention drills.
Work in high places shall be performed by personnel/operators who have undergone training regarding safety and danger
prevention drills.

<Export Regulations on the Equipment>

According to the Export Control released by Japanese Government (METI), export of the equipment may be subject to
export regulation under the Foreign Exchange and Foreign Trade Act. In case of exporting the equipment or component
parts of equipment from Japan, reselling, relocating or re-exporting from an original installation site out of Japan, please
contact our company in advance.

<Disposal of the Equipment>

At the end of use, the equipment shall be disposed or recycled according to relevant, local regulations. Besides the
equipment itself, any hazardous residues from the process liquid must be considered and dealt with in a proper manner.

<Use of this Installation Manual>

Read this manual thoroughly and understand the precautions regarding the safety of the equipment and its functions before
handling the equipment.
This manual is created for a person who fully understands the language it is written in. If a person, who is not able to
understand the language written herein, will handle the equipment, please provide safety instructions to the
personnel/operators.
PHE supplied may differ from the drawings and pictures in these Manuals depending on the optional parts if any. Also, for
the purpose of explanation, the drawings and pictures in these Manuals may omit the details, accessories, or the like.
Changing the contents of these Manuals, in part or in whole, or using them for anything other than its intended purpose is
prohibited.

<Disclaimer>
HISAKA accepts no liability for any failures in the function or performance of the equipment caused by use of any other than
genuine parts.
HISAKA accepts no liability for any injuries or damage borne by the user, caused by use of any other than genuine parts..
 HISAKA Plate Heat Exchanger
Operation and Maintenance Manual
Table of Contents
1 Safety Precautions P1, 2

2 Names of Components P3

3 Components Details P4

4 Nameplate P5

5 Accessories P5

6 Consumables P5

7 Model Description P5

8 Tests Before Commissioning Operation P6

9 Operation P7

10 Shutdown P7

11 Long-term Storage/Preservation P8

12 Maintenance P8 ~

13 Troubleshooting P15, 16

14 Plate Arrangement Drawing P18

15 Assembly Drawing P19

16 Exploded View P20 ~

17 Inquiries P24
 1 Safety Precautions

Read through this manual carefully before use, and use PHE properly.
If you have any questions, please inquire with our company.

Precautions are categorized using the following symbols.

WARNING This symbol indicates content where mishandling could result in death or severe injury.

CAUTION This symbol indicates content where mishandling could result in injury or property damage.

NOTE This symbol indicates important matters and/or useful information.

Meanings of Symbols

Indicates items that are "prohibited (something that you must Indicates items that are "mandatory (something that you must
NOT do)". do)".

WARNING
Do NOT use a piping gasket to the rubber covering nozzle of PHE. Keep fire-fighting equipment when handling flammable media.
Sealing performance could be decreased and it could be a cause of If the flammable media ignites during operation or maintenance, it can
leaking. In case of metal covering nozzle, piping gasket is required. lead to a major accident.
In general, do NOT perform pneumatic test for medium and large Install a protective cover on PHE when handling dangerous media,
size PHE. For small size PHE, do not perform pneumatic test at which is high temperature, high pressure, strong acid, or a strong
the same pressure as hydrostatic test pressure. alkaline.
When compressed air or nitrogen for pneumatic test is leaked, it is very If a dangerous media leaks and is splashed, it may lead to a serious
dangerous since there would be an impact caused by volume expansion accident.
in addition to such test pressure.
In general, do NOT perform pneumatic test in excess of 0.75 MPaG.
Do NOT loosen the thermometer, pressure gauge, tightening bolts Make sure that the operation is stopped, the internal pressure is
and nuts, and/or any other accessories during operation and/or "0", and the fluid temperature has sufficiently dropped before
PHE pressurized. disassembling the PHE
It may cause burns or injury if fluid is blown out from PHE/pipes. If fluid splashes from the PHE during disassembly, it may cause burns or
lacerations.
Do NOT use damaged tightening bolts, such as improper rust or When removing gasket, carry out in proper location with good
cracks. ventilation.
When the tightening bolts breaks during operation or disassembly, it is The gasket should be adhered with Hisakas S-1", "F-2" contains an
dangerous not only broken pieces are scattered, but also fluid may organic solvent. Breathing the volatile ingredients for a long time may
splash from PHE. cause symptoms such as headache, dizziness, and nausea. If these
Do NOT use tightening bolts with loosed bolt head. symptoms occur, remove person to fresh air. If signs/symptoms develop,
If the swaged bolt head loosens and comes off the bolt, it could burst at get medical attention.
high speed. It may cause a serious accident for any person or property. Wear protective equipment such as protective goggles, a mask, rubber
gloves, and protective clothing if handling a dangerous fluid such as a
Do NOT incinerate the gasket.
strong acid or strong alkaline.
Incinerating gaskets releases a toxic gas and is very dangerous.
Eye Contact: Flush eyes with large amounts of water. If signs/symptoms
Any unnecessary gaskets should be disposed as industrial waste in
persist, get medical attention.
accordance with international, national, prefectural, and municipal
Skin Contact: Remove contaminated clothing and shoes. Immediately
regulations.
flush skin with large amounts of water. Get medical
Also, gaskets should be disposed under the local jurisdiction.
attention. Wash contaminated clothing and clean shoes before reuse.
Do NOT handle the heat transfer plates in any place with strong
Inhalation: Remove person to fresh air. If signs/symptoms develop, get
wind.
medical attention.
Under strong wind, the heat transfer plates it could fly, cut, injury, and
If Swallowed: Do not induce vomiting unless instructed to do so by
bruise.
medical personnel. Give victim two glasses of water. Never
give anything by mouth to an unconscious person. Get medical
attention.

P1
 CAUTION
Do NOT touch the side of plate pack and heat transfer plate edge. If using a pump with specifications in excess of the PHE's design
The edge of a heat transfer plate is very sharp and may cut you. pressure, install a safety device on the pump's delivery side or the
Be sure to wear cut-resistant gloves whenever touching heat transfer PHE's inlet or outlet.
plate. Even if not required by applicable code and regulation, a safety device is
necessary to protect the equipment.
Do NOT place objects on plate pack. Secure working space around PHE.
It may cause deformation of heat transfer plate. Adequate piping design is required, taking into account the working
Falling object may cause injury during operation. space for disassembly and tightening device.
Do NOT make heat transfer plate edge deform by contacting with Perform maintenance of PHE that handle dangerous fluids, such as
surrounding object. a strong acid or strong alkaline, in an environment that has drain
Deformation of the heat transfer plate may cause damage on plate water treatment equipment.
gasket and result in leakage. Waste media in accordance with laws, codes and regulations. Be careful
Do NOT shorten guide bar by cutting. not to drain liquid into a river or ocean area.
It makes disassembling of the PHE impossible. If untreated liquid leaks, take measures in accordance with the "Material
Safety Data Sheet (MSDS)" for the treatment liquid you used.
In general, do NOT remove stud bolt of connection. In case of inner strainer is inserted PHE, remove it at the time of the
It may cause damage on the threads. back wash.
Stud bolt is to be removed very carefully not to make any damage on the It may cause damage on the inner strainer.
threads of both stud bolt and its hole at your own risk, only when it is
absolutely necessary.
Do NOT weld or attach any piping support onto the frame, guide
bar, and/or guide bar support.
Welding causes thermal damage on plate gaskets and attached parts
may interrupt handling when disassembling.
Do NOT enter debris or foreign materials into PHE.
Install a strainer on upstream to prevent clogging in PHE.
When flushing pipes for commissioning operation, install a temporary
strainer or provide bypass on upstream PHE in order to prevent debris
or foreign materials into PHE.
Do NOT start and stop the pump frequently (in a short time).
During commissioning, pay attention to time duration of pump start/stop,
or there would be leakage due to difficulty of gasket restoration caused
by temperature and pressure variation. After stopping, min. 3 minutes is
recommended to restart.
Open and close the valve slowly so as not to create a sudden pressure
fluctuation.
Do NOT operate in excess of the design conditions (temperature,
flow rate, pressure, etc.).
It may cause deformation of the heat transfer plates or leakage. Also,
the required performance may not be achieved.
Do NOT apply impact pressure.
Do not apply impact pressure to PHE, such as from starting-up of pump,
sudden close of valve, or by steam hammer occurred. Deformation,
cracks, or leaks in the heat transfer plates are possible if long time
repeated pressure pulsation within few seconds
Do NOT apply instantaneous negative pressure.
Drawdown may occur if instantaneous negative pressure is applied to
the PHE by pump stop or valve closing, or heat transfer plates
deformation may also.
Do NOT freeze.
If freezing occurs in PHE, the heat transfer plates may be damaged.
Drain out completely to avoid freezing in case of preservation in cold
areas. In warm areas, if storing the equipment for a long time, store it
with liquid at full capacity.

P2
 2 Names of Components

PHE consists of the following parts.

[NOTE]
Refer to the "Plate Arrangement Drawing" for equipment specifications.

Upper guide bar

Tightening bolts and nuts
E-Frame

Upper guide bar

E-Frame S-Frame
S-Frame
Stud bolt and nut
Stud bolt and nut
S-nozzle
S-nozzle
S-nozzle
S-nozzle
Tightening bolts
and nuts

Name plate

Name plate
Lower guide bar
S-nozzle
Frame support
S-nozzle
Heat transfer plates
S-nozzle
Guide bar support
S-nozzle

Lower guide bar

Heat transfer plates

Fig. 2-1 J Type Heat Exchanger Fig. 2-2 P Type Heat Exchanger

Upper guide bar

E-nozzle
E-Frame
C-nozzle

Guide bar support

L-Frame
S-Frame

Tightening bolts and nuts

S-nozzle

S-nozzle
<Section>
<Section>

<Section>

Nameplate

<Section>

S-nozzle Lower guide bar

S-nozzle E-nozzle
C-Frame
C-nozzle
Heat transfer plates

Fig. 2-3 BP2CL Type Heat Exchanger

P3
3 Components Details

3-1 Heat Transfer Plate

The heat transfer plates comprise of the following three types.
B-Plate A-Plate
D-Plate (First heat transfer plate between the S, L, C, and E-Frames)
E-Plate (Last heat transfer plate between the S, L, C, and E-Frames)
Channel plates (Heat transfer plates except for the D-Plate and E-Plate between
the S, L, C, and E-Frames)

A-Plates are turned upside down to be used as B-Plates.

Flow

Flow
The opposite is the same.
(Excluding some models)

We have a lineup of the following materials for heat transfer plates.

Stainless steel, Titanium, Titanium alloy, Nickel alloy, and so on

3-2 Plate Gasket

The plate gaskets comprise of the following four types. B-Plate A-Plate
gasket gasket
D-Gasket (Installed to the D-Plate port hole)
E-Gasket (Installed to the E-Plate port hole)
Channel gaskets (Gaskets installed to the front surfaces of heat transfer plates
other than the D-Plate)
Distance piece (String gasket that fills the gasket groove on the D-Plate or
E-Plate)

Flow

Flow
[NOTE]
These are not mounted on some types depending on the heat transfer plate
model and whether the plate is with or without passage holes.

In the same way as the heat transfer plates, "A-Plate channel gaskets" are turned
upside down to be used as "B-Plate channel gaskets". The opposite is the same.

We have a lineup of the following materials for gaskets.

NBR, EPDM, Silicon, FPM, PTFE encapsulated, and so on

"A-", "AG-", or "AN-" in front of the gasket material indicates "Slit-In" type.

3-3 Connection
Following figures are standard products for connection.
Other types of connections are available as you want.
N TN KN

Fig. 3-1. Rubber covering type Fig. 3-2. Metal covering type Fig. 3-3. Metal covering type
(Bended product) (Welded product)

P4
 4 Nameplate

The figure on the right is manufacturers standard nameplate installed on a

Hisaka PHE.
When inquiring, notify us of the "MFG. NO." and "MODEL (TYPE)"
described on the nameplate.
TIGHTENING LENGTH Max. on the nameplate may differ from that of
Assembly Drawing. The former is the actual dimension at delivery, while
the later is only the design dimension. When reassembling after replacing
plate gaskets or cleaning, follow the values on the nameplate.
Fig. 4-1. Nameplate (sample)

5 Accessories

Any accessories, like a ratchet spanner, anchor bolt, thermometer, pressure gauge, etc., for HISAKA PHE are to be supplied as
option upon request.

6 Consumables

Not all heat transfer plates are durable parts. Heat transfer plates to be used under corrosive and/or erosive environment
shall be considered as consumables. (Refer to: "12-3-1. Heat Transfer Plate Replacement")
Plate gaskets are consumables. Replace them periodically. (Refer to: "12-3-2. Replacement of Plate Gasket")

7 Model Description

The model description for HISAKA PHE indicates the following details.

RX - 1 4 6 A - TN H J R - 24

Heat transfer plate model Indicates the number of

- UX heat transfer plates.
- LX
- SX
Indicates special
- RX
specifications.
Etc.
- R: Saturated steam
heating
- L: With a divider
Size of heat transfer plate
- C: With a channel frame
- 0 (small) to 16 (large)
Etc.

Chevron angle of heat transfer Indicates the frame model.

pattern - J: Exclusive for small size / less
- 1 to 6: Mono arrangement plates
- 7 to 9: Mixed arrangement - P: Universal except for the above
Plate thickness
- 5: 0.5mm Indicates the class of the frame's
- 6: 0.6mm resistance to pressure
- 8: 0.8mm - None or E: For low pressure
- 0: 1.0mm - U: For high pressure
- H: For middle pressure
Method for channel gasket installation - S: For ultra-high pressure
- None: Glued Etc.
- A: Slit-in (Glueless)
- B: Glued Slit-in gasket Connection

None * Either of the left figures is applicable - None: Projected nozzle with flange, ferrule,
except for some models. etc.
- N: Rubber covering
- TN: Bended metal covering
- KN: Welded metal covering

Stainless steel covers

- B: Exclusive for food machinery use

P5
8 Tests Before Commissioning Operation
After installation, commissioning operation of the PHE is to follow the conditions below.

8-1 System Test, Piping Test, Equipment Test

Check the following nine items.
If all of the items are not satisfied, do not operate the equipment and inform your supervisor or safety manager.
Install safety apparatus compliant with various standards or regulations to the PHE installed line.
Confirm that the nozzle orientation in the "Plate Arrangement Drawing" and "Assembly Drawing".
Provide vending on both side of the PHE to facilitate the removal of air from the system.
Do not apply valve and piping loads to the nozzles. Use pipe supports not to load on the S-, C-, and E-Frames.
However, support structures are not installed in the maintenance space, or a removable support structure is used.
Ensure that flushing is completed in order to prevent welding spatter, debris and/or foreign materials into PHE.
Confirm that the tightening length is correct.
Tightening length on the Assembly Drawing may differ from actual length. Refer the tightening length in the nameplate which
describes the actual dimension at the delivery and after maintenance.
Confirm that all nuts for tightening bolt are not loose.
Fulfill the fluid for both hot and cold side. Confirm all air is out and liquid will flow out of the vent. Ensure that start the
operation with fulfilled condition, when non-fulfilled condition of PHE, it may result the following;
- pump overload
- heat transfer plates may be deformed and cracked, leaked due to impact pressure
There is no leak between the heat transfer plates, piping connections, or other locations.

8-2 Pressure/Leak Test for PHE and System Pressure Test

PHE has been performed pressure-leak test before delivery. In case of retest at site, follow below instructions.
Also, in case of pressure /leak test for whole system including up/down stream equipment, follow below instructions.
In case of hydrostatic test
Pressurize hot and cold side independently and/or both sides at the same time. Actual test pressure shall not exceed the
specified test pressure. Over test pressure could result in heat transfer plate/frame deformation and/or leaking. The test
pressure is referred to Plate Arrangement Drawing.
In case of pneumatic test
Pressurize hot and cold side independently and/or both sides at the same time. Keep distance from PHE during the test.
When compressed air or nitrogen for pneumatic test is leaked, it is very dangerous since there would be an impact caused
by volume expansion in addition to such test pressure. The test pressure is referred to Plate Arrangement Drawing.

8-3 Initial Flushing for Piping

Initial flushing for piping shall be performed after piping before operation in order to prevent welding slag and/or leavings, such
as tool or dust cloth, come into PHE chamber. Generally, the methods of flushing are;
- Removing PHE from the piping
- Applying the temporary strainer for the upstream piping
In case of removing PHE from the piping, do not remove studded bolt on PHE frame. In case of applying temporary straighter,
refer to 1 Installation Manual, Table 8-1 Recommended strainer hole size and select the adequate strainer hole size. Apply the
strainer with external reinforcement such as punching metal because screen without reinforcement can be damaged easily.

P6
 9 Operation

The procedure for start-up depends on your use. Reconfirm your use and follow its procedure.

General Starting Operation (No burnt or No frozen fluid)

- Fullfill PHE chamber with media after all air is - Flow heating side
- Flow heated side media.
expelled for both sides. media.

Starting operation in case of possibility of burn by using hot water

- Fullfill PHE chamber with media after all air is - Flow heated side
- Flow heating side media.
expelled for both sides. media.

Starting operation in case of possibility of burn by using saturation vapor.

- Fullfill PHE chamber with media after all air is
expelled for heated sides. - Flow heated side
- Flow heating side media.
- Drain media from heating side. media.

Starting operation in case of freezing by using chilled water

- Fullfill PHE chamber with media after all air is - Flow cooled side
- Flow cooling side media.
expelled for both sides. media.

[CAUTION]: Do NOT apply impact pressure.

Do not apply impact pressure to PHE, such as from starting-up of pump, sudden close of valve, or by steam hammer
occurred. Deformation, cracks, or leaks in the heat transfer plates are possible if long time repeated pressure pulsation
within few seconds

10 Shutdown

The procedure for shutdown depends on your use. Reconfirm your use and follow its procedure.

General shutting down (No burnt or No frozen fluid)

- Shut off heated side
- Shut off heating side media. - Hold until next start-up.
media.

Shutting down in case of possibility of burn by using hot water

- Shut off heated side media after
- Shut off heating
being less than burning temperature - Hold until next start-up.
side media.
of the media.

Shutting down in case of possibility of burn by using saturation vapor.

- Shut off heating - Discharge drain steam completely after
- Shut off heated side media.
side media. shutting down.

[CAUTION]: Check the NO steam leaking.

Surely check that NO steam is leaking after shutdown of PHE.
Steam might leaks slightly, even if steam valve may seem to be firmly closed.

Shutting down in case of freezing by using chilled water

- Control the system to prevent freezing at shutting down.
- Shut off cooling side - Shut off cooled side
- Drain at least one medium if there is a risk of freezing
media. media.
after shutting down.

[CAUTION]: Do NOT operate vacuum pressure to PHE.

Provide safety device such as vacuum breaker to prevent deformation/cracking/leaking of heat transfer plate.
Media could contract the volume due to temperature decrease of media as a result PHE chamber could work into
vacuum pressure after shutting down of high temperature operation.

P7
11 Long-term Storage/Preservation

If the unit has been used and long-term storage is required, PHE is to be placed in storage as below table. The storage
conditions are depending on your application and the environment.
Environment/Application Storage Procedure
General use It must be completely drained and storage with empty condition to avoid failures such as
alteration of any remaining liquid, corrosion in heat transfer plates, and damage to
components from freezing.
It must be completely fulfilled and storage.
It is recommended to replace the seawater with clean water to prevent decay.
Seawater use
In case of long term storage with empty and dry condition, dried scale on the heat transfer
plates might not be able to cleaned.
Cold area use It must be completely drained and storage with empty condition If freezing occurs in PHE,
Low temperature media use the heat transfer plates may be damaged.

Take care following four items when storing a spare gasket long term.
Do not place any items on it to avoid gasket deformation.
Store it in a black plastic bag or cardboard box to avoid ultraviolet exposure.
Store in a cool place avoiding direct sunlight and high temperature, high humidity.
Storage lifetime of new plate gasket is 3 years after the purchase. .

Take care following three items when storing a spare adhesive long term.
Store in a cool place avoiding direct sunlight and high temperature, high humidity.
Storage lifetime of new adhesive is 2 years after the purchase in case of general application S-1 and food application
F-2.
Mix it well before use because the solvent and solids may separate due to long-term storage.

12 Maintenance

Periodic maintenance is recommended for long life use of PHE.

[NOTE]
The maintenance cycle is depending on your usage conditions. It is recommended to perform maintenance once per
year for brand-new PHE and estimate appropriate maintenance cycle based on the result thereof.

Do not hesitate to contact us for PHE total support, the "MARUGOTO PACK" maintenance.
Our excellent staffs, well-trained, carry out maintenance with their professional skills and techniques.
If the customer carries out maintenance by yourself, the below explanations: "12-1. Disassembly", "12-2. Cleaning", "12-3.
Maintenance", "12-4. Inspection", "12-5. Assembly", and "12-6. Leakage Detection" to be followed.

12-1 Disassembly
Disassembly preparation
(1) Record the tightening dimensions before disassembly in case of reusing plate gaskets.
Record of the tightening length is not required when using brand-new plate gaskets.

(2) Drain out media completely and make sure that no media and pressure is remaining from
the both chambers.
Maintenance space
(3) For PHE with E-Nozzle and/or C-Nozzle, remove the primary and secondary connection
Maintenance
and ensure to keep maintenance space and moving space for E-Frame, C-Frame, and
space
heat transfer plates.
Maintenance space

P8
 (4) Apply lubricant the tightening bolts after cleaning all tightening bolt threads.

(5) Prepare the ratchet spanner or the automatic tightening device.

Disassembly work
Remove the tightening bolts and nuts as following steps by using a ratchet spanner or automatic tightening device.
The following procedures shows an example of PHE with 14 tightening bolts and nuts.

(6) Slowly loosen the tightening bolts in order from 1-2 to 13-14.

[NOTE]
If you have two sets of ratchet spanners and/or automatic tightening device,
slowly loosen two tightening bolts that are located diagonal, in order, 1 and
2, 3 and 4, to 11 and 12, 13 and 14,simultaneously

(7) After loosing tightening bolts/nuts, where the tightening bolt/nut can easily loose by using
bolts only 3,4,11 and 12, then remove all tightening bolts and nuts except for 3, 4, 11 and
12.

[NOTE]
Generally leave four tightening bolts and nuts, below the upper nozzles and
above the lower nozzles.
(These four tightening bolts generally are longer than the other tightening
bolts.)

(8) Slowly loosen the tightening bolts in order from 3 - 4 - 11 - 12 - 3 and so on.

[NOTE]
If you have two sets of ratchet spanners and/or automatic tightening device,
slowly loosen two tightening bolts that are located diagonal, in order, 3 and
4, 11 and 12, simultaneously.

(9) After loosening the 3, 4, 11, 12 tightening bolts, remove them.

(10) Move the E-Frame to the guide bar support.

[NOTE]
If the E-Plate and E-Frame are sticking each other, move back the E-Frame
slightly to separate E-Plate and E-Frame, and then move E-Frame to the
back end.

P9
12-2 Cleaning
12-2-1 Manual Cleaning
Cleaning preparation
Prepare a high-pressure washer or a soft brush, cleaning water, and dust cloths before cleaning the heat transfer plates.
Prepare a work/step platform for large PHE because heat transfer plate can clean with suspending on the upper guide bar.
Cover PHE with protective sheet to prevent the scattering of cleaning water.
Install a dust filter on the drain port to prevent clogging of the port by scale or dirt from heat transfer plates.
Cleaning method
Two method of cleaning the heat transfer plates are available.
Select a cleaning method depending on the PHE's installation condition and the capacity of effluent disposal.

Cleaning by heat transfer plates Removed

Remove the heat transfer plates from the PHE frame to clean. Place or pile
the heat transfer plates and clean both the front and back surfaces using a
high pressure washer or a soft brush, such as nylon.

Fig. 12-1 Removal cleaning

Cleaning by heat transfer plates Suspended

Clean the heat transfer plates while they are still suspended from the upper
guide bar. Move the heat transfer plates one at a time to the S-Frame or
E-Frame direction and clean both the front and back surfaces of the heat
transfer plates using a high pressure washer or a soft brush, such as nylon.

Fig. 12-2 Suspended cleaning

[CAUTION] Do NOT use the heat transfer plates with a steel brush or steel wool.
If heat transfer plates are damaged by using a steel brush or steel wool, sealing performance could be decreased
and it could cause corrosion. Therefore, use a soft brush, such as nylon, so as not to damage the heat transfer
plates.
[CAUTION] Do NOT have the nozzle of the high pressure washer close to the PHE components.
High pressure water may peel the frame's coating or damage the heat transfer plate and plate gasket surfaces.
Therefore, keep the nozzle of the high pressure washer at least 100 mm away from the object being cleaned.
[CAUTION] Precaution for using a high pressure washer
Discharge pressure is 1 to 15 MPaG for the cleaning. Use water and a soft brush, such as nylon, for the scale
which is difficult to remove.

12-2-2 CIP - Cleaning In Place

Cleaning in place is the preferred cleaning method when especially cleaning liquid are processed in PHE unit. Appropriate
cleaning liquid could achieve a sufficient cleaning effect.
Please refer to "Plate Cleaning Manual" to select cleaning liquids and agents for PHE.

P10
 12-3 Maintenance
12-3-1 Heat Transfer Plate Replacement
(1) Removing heat transfer plates
Replace any heat transfer plate with deformation, corrosion, or erosion to a brand-new one.
Please refer to Plate Arrangement Drawing and Gasketting Manual for heat transfer plate arrangement.

Rail type of upper guide bar (not round type)

- Slightly bend the bottom of the heat transfer plate.
- Slightly turn the heat transfer plate to the removing direction.
- Remove the lower hanger from the lower guide bar.
- Lift the heat transfer plate.
- Turn the heat transfer plate to the removing direction with a pivot point of upper
hanger.
- Remove the heat transfer plate from the upper guide bar rail.

Round type of upper guide bar (not rail type)

- Lift the heat transfer plate.
- Remove the hanger from the heat transfer plate. 2

- Turn the heat transfer plate to removing direction with a pivot point of upper guide bar
and remove.
3
[NOTE] 1

Following PHE models use round type guide bar and dont have hangers.
Those models are held by upper and lower guide bars; UX-005, UX-01, RX-00,
and CX-10.

(2) Hanging heat transfer plates

Rail type of upper guide bar (not round type)
- Hang the heat transfer plate's upper hanger on the upper guide bar rail.
- Turn the heat transfer plate to the inside direction with a pivot point of upper hanger
and install the lower hanger to the lower guide bar.

Round type of upper guide bar (not rail type)

- Install the upper hanger of the heat transfer plate on the upper guide bar.
- Turn the heat transfer plate to the inside direction with a pivot point of upper hanger
3
and install the lower hanger to the lower guide bar.
- Lift the heat transfer plate and hook the hanger. 2
- Hang the heat transfer plate on the upper guide bar. 4 1
[NOTE]
Following PHE models use round type guide bar and dont have hangers.
Those models are held by upper and lower guide bars; UX-005, UX-01,
RX-00, and CX-10.

This type of hanger is set This type of hanger is set

on front (gasketted) side. on back (non-gasketted)
(Except for YX mode) side.

P11
12-3-2 Replacement of Plate Gasket
Replace a plate gasket if it has any wearing, cracks, swelling, carbonization, adhesion, or foaming.
For types of plate gaskets, refer to each model's "Gasketting Manual".

(1) Removing the plate gasket

1) Remove the used gasket.
Remove the used gasket with moderate force not to deform the heat transfer plate.
At this time, be careful not to damage the heat transfer plate.
2) Clean the plate gasket groove of heat transfer plate.
Use solvent on the market to wipe away any adhesive remaining in the heat transfer plate's gasket groove.
Remove dirt, dust, which is stuck on the heat transfer plate's gasket groove.

(2) Preparing to replace the plate gasket

1) If replacing plate gaskets, check and prepare the number of required gasket.
Visually check that there is no dirt, dust, which is stuck on the plate gasket's front and back surfaces. If there is
any visible scale on the front or back surface of the plate gasket, wipe it off using a clean dust cloth.
2) Prepare appropriate adhesive for the plate gasket material.
There are the following four types of adhesive. Use the adhesive HISAKA specified.
Types of adhesive Purpose of use
S-1 General use
F-2 For food products
Silicon type For silicon gaskets
Double-sided tape PTFE encapsulated gaskets, etc.

(3) Gasket adhesion.....Glued gaskets

1) Applying adhesive
Uniformly apply the specified adhesive to heat transfer plate's gasket groove.
Adhesion work should be done at a well-ventilated location because "S-1" and
"F-2" adhesives contain organic solvents. Work in improperly vented room is
prohibited.
Adjust the quantity of adhesive applied not to overflow the adhesive from the heat
transfer surface when the plate gasket is set on heat transfer plate.

2) Gasketting on heat transfer plate

Set plate gasket on heat transfer plate gasket groove. NG
At this time, be careful to prevent the gasket from run on to gasket groove wall.
The gasket expands during hot season and shrinks during cold season. When
gasketting, put the gasket in tight and or extend it.

3) Curing and pressing (Refer to P5 only if the plate gasket is type "B" or "None".)
Pile up gasketted heat transfer plate, place a weight (approx. 5kg) and a board
for curing. Perform curing time is 15 minutes and over. 5kg
Be careful not to fall over piled plates.
As recommendation, piled height is up to max. 1,000 mm.

P12
 (4) Gasketting....."Slit-In" type plate gasket
1) Gasketting
Attach the plugging part of the gasket into the slit on the outside of plate gasket groove.
Be careful not to run on to gasket groove wall.

2) Gasket Bonding
Gaskets of D-Plate front side and E-Plate back side are not slit-in type. Apply adhesive to the gasket groove
and set D-Gasket(s) or E-Gasket(s).
Note: For only models which require gaskets of E-plate back side

[CAUTION]
Plate gasket has two sides. It is correct when stamp and color marking can be seen. (Some models are
exception.) Before gasketting, fix any twisting of gasket and check the front and back surfaces.

12-4 Inspection

Be sure to perform the following inspections before assembling a Hisaka PHE.

Checking of heat transfer plate arrangement GOOD NG
While moving all the heat transfer plates toward the S-Frame side or E-Frame
side one by one, check the heat transfer plate arrangement.
For heat transfer plate arrangement, refer to the "Plate Arrangement Drawing
and each model's "Gasketting Manual".
Furthermore, look at the arranged heat transfer plates from the side of PHE. If or or
the arrangement is incorrect, heat transfer plates with the same configuration will
be lined up.

Heat transfer plate patterns

Inspection of defects on the heat transfer plate two sides and plate gasket surface
While moving the heat transfer plates toward the S-Frame side or E-Frame side one by one, visually check for foreign
material on the two sides of the heat transfer plate gasket groove and the plate gasket surface, and for defects such as
damage and/or corrosion.
If there is any foreign material on the two sides of the heat transfer plate gasket groove and/or the plate gasket surface,
remove it using a soft cloth such as a dust cloth.
If there is any visible damage, corrosion on the two sides of heat transfer plate or the plate gasket surface, replace it with
a brand-new one.
At the same time, check that the plate gasket is free from peeling off the heat transfer plate.
If the gasket is peeling from plate groove, re-bonding only the peeling part.
In case of slit-in type (plate gasket type "A"), only D-Plate front side and E-Plate back side are to be adhered. Use
Hisaka specified adhesive.

Damage inspection for the tightening bolts and nuts

Visually inspect the surface of tightening bolts and nuts, and if there is any damage that may interfere with tightening,
such as scratches, dents, or rust, replace it with a brand-new one.

P13
12-5 Assembly
Assembly preparation
(1) Prepare the ratchet spanner or the automatic tightening device.
(2) Grease up the tightening bolts after cleaning all tightening bolt threads.

Assembly work
(1) Move all heat transfer plates that have been checked/inspected plate arrangement to
the S-Frame side, and move the E-Frame to the S-Frame side.

(2) Place the tightening bolts for position 3, 4, 11, and 12.

[NOTE]
Place the tightening bolts and nuts in four positions, below the upper
nozzles and above the lower nozzles. (If there are long bolts and short bolts,
place the long bolts first.)

(3) Tighten the bolts to ensure the dimension in position 3, 4, 11 and 12 should be equal.

(4) Slowly tighten the bolts in order of 3411123 and so on.

[NOTE]
If you have two sets of ratchet spanners and/or automatic tightening device,
slowly tighten two tightening bolts that are located diagonal, in order, 3 and
4, 11 and 12, simultaneously.

(5) Where 3, 4, 11, and 12 become hard to tight, place all tightening bolts and nuts in
position 1 to 14.

(6) Tightening length of 1 to 14 should be equal.

(7) Slowly tighten the tightening bolts in order of 1, 2, to 13, 14, to 1.

[NOTE]
If you have two sets of ratchet spanners and/or automatic tightening device,
slowly tighten two tightening bolts that are located diagonal, in order, 1 and 2
-> 13 and 14 -> 3 and 4 -> 11 and 12 -> -> 5 and 6 -> 7 and 8,
simultaneously.
The difference between each tightening length shall be within 10mm.
Tightening
Further, the difference shall decrease to 5mm, 3mm and 1mm from 10mm length

when it gets harder to tighten up in order to prevent galling of the tightening Tightening
length

bolts and nuts. Tightening

length

(8) Repeat step (7) until the tightening below-specified lengths. Tightening
length

In case that plate gaskets are not to be replaced: Tightening lengths recorded Tightening
length

before disassembly Tightening

length

In case that plate gaskets are to be replaced: Tightening Length Max. on the Tightening
length

nameplate

[NOTE]
Tightening for the HISAKA PHE shall be managed by tightening lengths but not by torque counting by millimeters.
It is not a problem if there might be some different tightening torque between each tightening bolt position.

P14
 12-6 Leakage Detection
(1) Leakage detection shall be performed once assembly of PHE has been completed.
Check if any leakages appear at top, bottom and both sides of plate pack by carrying out hydrostatic test.
Testing pressure shall not exceed the design pressure.
(2) Maintain pressure for 10 minutes or longer. All works can be completed if no leakage.
In case of any leakage detected, mark on the leaking part and disassemble PHE again for visual check on the heat
transfer plate and gasket surface.

13 Troubleshooting
Symptom Possible cause(s) Remedy/ Solution

Heat transfer performance has

The heat transfer surfaces get fouled.
decreased.
Disassemble the Heat Exchanger and make
Fouling on the heat transfer surface is the heat transfer plates clean.
making the plate gap narrow. Be sure to check if any pipes connected to
The differential pressure increases
the inlet and outlet of PHE are clean.
or the flow rate decreases.
The port holes and/or the heat transfer
surfaces are clogging.
After PHE internal pressure shall be
atmospheric pressure and tighten the plate
Sealing performance has decreased
pack sufficiently.
due to insufficient tightening.
However, do not tight shorter than the
minimum length.
Sealing performance has decreased Disassemble PHE and replace any damaged
due to plate gasket deterioration. plate gaskets to brand-new one.
Disassemble PHE and wipe off the foreign
Foreign material exists on the sealing
materials on the sealing surface of plate
surface of plate gasket.
Fluid is leaking to the outside from gasket by using a dust cloth.
between heat transfer plates.
Gasket runs on to gasket groove wall. Disassemble PHE and reset the plate gasket.

The heat transfer plate arrangement is Disassemble PHE and heat transfer plate
incorrect. arrangement shall be corrected.

Heat transfer plate has crack and/or

pin-hole due to corrosion etc.
Disassemble PHE and replace any damaged
heat transfer plate to brand-new one.
Heat transfer plate deforms.

After PHE internal pressure shall be

atmospheric pressure and tighten the plate
Sealing performance has decreased
pack sufficiently.
due to insufficient tightening.
However, do not tight shorter than the
minimum length.
Sealing performance has decreased Disassemble PHE and replace any damaged
due to D-plate gasket deterioration. D-plate gaskets to brand-new one.
Fluid is leaking to the outside from
Disassemble PHE and wipe off the foreign
between S-Frame and the D-Plate. Foreign material exists on the sealing
materials on the sealing surface of D-plate
surface of D-plate gasket.
gasket by using a dust cloth.
D-plate gasket runs on to gasket Disassemble PHE and reset the D-plate
groove wall. gasket.

Heat transfer plate has crack and/or Disassemble PHE and replace damaged
pin-hole due to corrosion etc. D-plate to brand-new one.

P15
 Symptom Possible cause(s) Remedy/ Solution

Metal covering nozzle has crack and/or

pin-hole due to corrosion etc. Replace a set of the S-Frames with a
(Continued from the previous page) brand-new one.
Welding part of metal covering nozzle
Fluid is leaking to the outside from Inquire with our company whether the
has crack and/or pin-hole.
between S-Frame and the D-Plate. welding part can be repaired/changed or
not.
Rubber covering nozzle has crack.

After PHE internal pressure shall be

atmospheric pressure and tighten the
Sealing performance has decreased plate pack sufficiently.
due to insufficient tightening. However, do not tight shorter than the
minimum length.
Sealing performance has decreased Disassemble PHE and replace any
due to E-plate gasket deterioration. (If damaged E-plate gaskets to brand-new
equipment has E-Nozzle) one.
Foreign material exists on the sealing Disassemble PHE and wipe off the
surface of E-plate gasket. (If equipment foreign materials on the sealing surface
has E-Nozzle) of E-plate gasket by using a dust cloth.

Fluid is leaking to the outside from E-plate gasket runs on to gasket groove Disassemble PHE and reset the E-plate

between E-Frame and the E-Plate. wall. (If equipment has E-Nozzle) gasket.

Heat transfer plate has crack and/or Disassemble PHE and replace
pin-hole due to corrosion etc. damaged E-plate to brand-new one.

Metal covering nozzle has crack and/or

pin-hole due to corrosion etc. (If
Replace a set of the E-Frames with a
equipment has E-Nozzle)
brand-new one.
Welding part of metal covering nozzle
Inquire with our company whether the
has crack and/or pin-hole. (If equipment
welding part can be repaired/changed or
has E-Nozzle)
not.
Rubber covering nozzle has crack. (If
equipment has E-Nozzle)

Disassemble PHE and replace any

The mixture of hot side media and cold Heat transfer plate has crack and/or
damaged heat transfer plate to
side media has occurred. pin-hole due to corrosion etc.
brand-new one.

P16
MEMO

P17
14 Plate Arrangement Drawing

<Sample>

- The equipment number, applicable

code etc. are indicated.

- Equipment specification is
indicated. such as:
- Plate arrangement of
Operating conditions, design
heat transfer plates is
pressure, test pressure, design
indicated.
temperature
etc.

- Plate arrangement and

nozzle connection size are

- Material components and painting

- Summary for plate color.
arrangement of heat
transfer plate including
plate hole
specification / number
of plates is indicated.

- Customer information.

- MFG number, Model, and Quantity.

- Revision history.
- The hole symbols and names for heat transfer plates are indicated.

P18
 15 Assembly Drawing

This is one example of the Assembly Drawing of a Hisaka Plate Heat Exchanger. The following information is described in the Assembly Drawing.

- Describes the position,

standard, and diameter for
piping to be mounted.

- Tightening length for the - Describes this equipment's

weight.
heat transfer plates and
- Describes accessories.
full length of the PHE are
illustrated. - Describes the equipment
number, applicable
regulations, and the like.

- The PHEs external

dimensions and connect
position of piping are
illustrated.

- Describes the names,

materials, required quantity,
and specifications of
components in simple terms.

- Describes customer
information.

- Describes the serial number,

model, and number of
equipment units.

- This is the a drawing of the

equipment's foundation dimensions.
- Some also include a detailed drawing of the nozzle. - Describes this drawing's revision history.

P19
16 Exploded View [e.g.: J-Type Heat Exchanger]

Back

12 Nameplate
11 S4-Nozzle

10 S2-Nozzle

9 S3-Nozzle
8 S1-Nozzle
7 Tightening bolt and nut
6 Frame support

5 Lower guide bar (Square pipe)
4 Upper guide bar (Rail)

3-3-2 E-Plate gasket *1

3-3-1 E-Plate

3-2-2 Channel gasket
3-2-1 Channel plate
3-1-2 D-Plate gasket *1
3-1-1 D-Plate
3 Heat transfer plates with plate gaskets
2 E-Frame
1-1 Stud bolt and nut
*1. Note: D/E plate gasket types with holes are different from the one without holes.
1 S-Frame
Part number Part name

P20
 16 Exploded View [e.g.: P-Type Heat Exchanger]

16 Nameplate
Back
15 E4-Nozzle
14 E2-Nozzle
13 E3-Nozzle
12 E1-Nozzle

11 S4-Nozzle

10 S2-Nozzle

9 S3-Nozzle

8 S1-Nozzle
7 Tightening bolt and nut
6 Guide bar support

5 Lower guide bar
4 Upper guide bar
3-3-2 E-Plate gasket *1

3-3-1 E-Plate

3-2-2 Channel gasket
3-2-1 Channel plate
3-1-2 D-Plate gasket *1
3-1-1 D-Plate
3 Heat transfer plates with plate gaskets
2 E-Frame
1-1 Stud bolt and nut
*1. Note: D/E plate gasket types with holes are different from the one without holes. 1 S-Frame
Part number Part name

P21
16 Exploded View [e.g.: Welded P-Type Heat Exchanger]

16 Nameplate
Back
15 E4-Nozzle
14 E2-Nozzle

13 E3-Nozzle
12 E1-Nozzle
11 S4-Nozzle

10 S2-Nozzle
9 S3-Nozzle

8 S1-Nozzle
7 Tightening bolt and nut
6 Guide bar support
5 Lower guide bar

4 Upper guide bar
3-3-2 E-Plate gasket *1

3-3-1 E-Plate (Cassette) *2
3-2-2 Channel gasket

3-2-1 Channel plate (Cassette)
3-1-2 D-Plate gasket *1
3-1-1 D-Plate (Cassette)
3 Heat transfer plates with plate gaskets
*2. When number of plates is an odd, the end of the heat transfer plate is a single plate, not a cassette.
2 E-Frame
*1. Note: D/E plate gasket types with holes are different from the one without holes.
1-1 Stud bolt and nut
1 S-Frame
Part number Part name

P22
 16 Exploded View [e.g.: BP2CL Type Heat Exchanger]

27 Nameplate
26 C24-Nozzle *2
25 C22-Nozzle *2

24 C23-Nozzle *2

23 C21-Nozzle *2

Back
22 C2-Frame
21 C14-Nozzle *2
20 C12-Nozzle *2

19 C13-Nozzle *2

18 C11-Nozzle *2

17 C1-Frame

Back
16 L-Frame

15 E4-Nozzle *2

14 E2-Nozzle *2

13 E3-Nozzle *2

12 E1-Nozzle *2
Back

11 S4-Nozzle *2

10 S2-Nozzle *2

9 S3-Nozzle *2

8 S1-Nozzle *2
Back

7 Tightening bolt and nut

6 Guide bar support

5 Lower guide bar

4 Upper guide bar

3-3-2 E-Plate gasket *1

3-3-1 E-Plate
3-2-2 Channel gasket

3-2-1 Channel plate

3-1-2 D-Plate gasket *1
3-1-1 D-Plate
*2. S, E, and C nozzle arrangements will be changed depending on heat transfer plate hole types.
3 Heat transfer plates with plate gaskets
*1. Note: D/E plate gasket types with holes are different from the one without holes.
2 E-Frame
1 S-Frame
Part number Part name

P23
17 Inquiries

Contact info for inquiries

HISAKA WORKS, LTD., Heat Exchanger Div., Sales Department
Osaka: 2-1-48, Higashi-Konoike-cho, Higashi-Osaka, Osaka, 578-0973, Japan Tel : +81-(0)72-966-9601
Fax : +81-(0)72-966-8923
Tokyo: KYOBASHI OM BLDG. 1-19-8, Kyobashi, Chuo-Ku, Tokyo, 104-0031, Japan Tel : +81-(0)3-5250-0760
Fax : +81-(0)3-3562-2759
Nagoya: Fujifilm Nagoya Bldg. 12th Floor, 1-12-17, Sakae, Naka-Ku, Nagoya, Tel : +81-(0)52-217-2491
Aichi 460-0008, Japan Fax : +81-(0)52-217-2494
URL : http://www.hisaka.co.jp/english/

Global Network
HisakaWorks S.E.A. Sdn. Bhd. (MALAYSIA)
No.2, Jalan TP2. Taman Perindustrian SIME UEP, 47600 Subang Jaya, Selangor Tel : +603-58804185
E-mail : heatexc@hisaka-asia.com Fax : +603-80817185

Hisaka Works (Thailand) Co., Ltd. (THAILAND)

16 Soi Onnut 62 Kwang Suanluang, Khet Suanluang, Bangkok 10250, Thailand Tel : +66-2704-60389
E-mail : heatexc@hisaka-thai.com Fax : +66-2704-6037

Hisaka Works (Singapore) Pte Ltd. (SINGAPORE)

No.18, Boon Lay Way, #02-118, Trade Hub 21 Singapre 609966 Tel : +65-6897-8489
E-mail : heatex@hisaka-sing.com Fax : +65-6686-4579

Hisakindo (Sales Representative Office) (INDONESIA)

Kompleks Intercon Plaza block D8-9, Jl. Meruya Ilir Raya, Taman Kebon Jeruk, Tel : +62-021-58901302
Jakarta 11630, Indonesia +62-021-5860158
Fax : +62-021-5304380
E-mail : hisakindo@hisaka-asia.com +62-021-5304885

Hisapino (Hisakaworks S.E.A. Philippines Sales Representative Office) (PHILIPPINES)

Suite 22C Level 2 Towet One Ayala Triangle, Ayala Ave., Makati City, Tel : +632-368-5676
1226 Manila, Philippines Fax : +632 368 5757
E-mail : hisapino@hisaka-asia.com

Hisavina (Hisakaworks S.E.A. Vietnam Sales Representative Office) (VIETNAM)

Horizon Tower, No.304 214 Tran Quang Khai St., Ward, Tan Dinh, Dist. 1, Tel : +84 (8) 3910 7355
Ho Chi Minh, Vietnam Fax : +84 (8) 39107356
E-mail : hisavina@hisaka-asia.com

Hisaka Works (China) Co., Ltd. (CHINA)

No.1 Xiangyuan Road, Changshu Southeast Economic Development Zone, Tel : +86-512-5213-3000
Changshu City, Jiangsu Province 215542, China Fax : +86-512-5213-3008

Hisaka Works (China) Co., Ltd. Shanghai Branch (CHINA)

Room 1603 Shanghai Orientalcenter, 699 West Nanjin Road, Tel : +86-21-5211-0701
Shanghai 200041, China Fax : +86-21-5211-0720
E-mail : hisaka-sha@hisaka.co.jp

P24
 Hisaka (China) Co., Ltd. Beijing Branch (CHINA)
Room 1705 Block B Lucky Tower, 3 DongSanHuan Beilu Chaoyang District, Tel : +86-10-6461-2411
Beijing 100027, China Fax : +86-10-6461-2571

Hisaka (China) Co., Ltd. Guangzhou Branch (CHINA)

Room 1208 R&F Tianhe Commercial Bldg., 4 Huanting Rd. Tianhe, Tel : +86-20-3810-5515
Guangzhou, Guangdong, China Fax : +86-20-3847-7539

Hisaka Middle East Co., Ltd.

P.O. Box 8221, 5017 King Saud Rd, Al-Hosan Bldg. 5th floor, Dammam 31482, Kingdom Tel : +966-3-8331473
of Saudi Arabia Fax : +966-3-8331471
Email : info@hisaka-me.com
URL : www.hisaka-me.com

Hisaka Korea Co., Ltd.

Gwanghwamun Bldg. 15F, 149 Sejong-daero, Jongno-gu, Seoul, 110-730, Korea Tel : +82-(0)2-739-8861~3
Email : heatexc@hisakakorea.com Fax : +82-(0)2-739-8864

[NOTE]
Please inform us the "MFG. Number" and "Model" described on the nameplate or Plate Arrangement Drawing
and Assembly Drawing.

For more information

Hisaka Works, Ltd. official homepage (http://www.hisaka.co.jp/english/).

Customer's memo
Please fill in the table below with PHE information.

Company name

Contact personnel

Post code

Address

Contact
Information
Tel/Fax

e-mail

Item
Number

MFG. Number

Model

Date MFG.

Maintenance
Records

P25
 Inquiry Details
Please describe the symptoms of your PHE to lead the better solution.
Location(s) of failure

Symptom(s)

P26
HE-ME001303

2016.07. AIBS