IWAKI PUMPS PDA-W Series, PDA-40W, PDA-20W, PDA-80W Instruction Manual
IWAKI Auto-Dampener
PDA-W
Instruction Manual
Read this manual before use of product
This is patent pending product
.
We thank you for selecting IWAKI Auto-dampener PDA-W series. This instruction
manual, which is divided into five sections of "Safety", "Outline of product", "Instal-
lation", "Operation" and "Maintenance", deals with the correct handling and opera-
tion procedures for the auto-dampener. To make maximum use and to ensure safe
and long time operation of the auto-dampener, please read this manual thoroughly
and carefully prior to operating the auto-dampener.
Contents
Safety section
.................................................................................................
Outline of product
1. Unpacking and inspection
2. Outline of product
3. Model code
4. Specification
5. Dimensions and mass
6. Structure and names of parts
7. Main parts and labelling
Installation
...................................................................................................
1. Before use
2. Installation
3. Piping
Operation
...................................................................................................
1. Preparation for operation
2. Operation
3. Stopping
Maintenance
..................................................................................................
1. Troubleshooting
2. Maintenance and inspection
3. Consumable parts
...........................................................................................
..............................................................................
...............................................................................................
............................................................................................................
.........................................................................................................
......................................................................................
.......................................................................
...................................................................................
............................................................................................................
............................................................................................................
....................................................................................................................
.............................................................................
.............................................................................................................
.................................................................................
.......................................................................
....................................................
...................................................................
1
4
5
5
5
6
7
8
9
10
11
11
12
14
15
15
16
17
18
19
19
This instruction manual should be kept on hand by end users for quick reference. It is recommended that each user, after reading the instruction manual thoroughly, keep it in a position close to the pump system and where it may be easily accessed by operator at any time
whenever necessary.
Contact us if you have any questions.
Important instruction
For the Safe and Correct Handling of the Auto-dampener
● Before use of the auto-dampener, read this "Safety Section" to prevent accidents and to avoid the
damage or loss of assets.
● Observe and abide by the instructions described in this "Safety Section".
These instructions are very important for protecting pump users or other persons from hazard or
loss of assets.
● Meaning of symbols
Following two symbols describe the extent of hazards and loss which may be brought if the
instructions are not observed or if the auto-dampener is wrongly used.
Non observance or misapplication of the contents of the
Warning
Caution
"Warning" could lead to death or injury.
Non observance or misapplication of the contents of the
"Caution" could lead to injury or damage.
Types of Symbols
Prohibited action or procedure is indicated.
Inside or near this circle, a concrete activity to be prohibited is
depicted.
Action or procedure which must be performed without fail is
indicated. Inside this circle, a concrete activity to be performed
is depicted.
-
1 -
Safety instruction
WARNING
● Power off
Be sure to turn off power prior to any inspection/maintenance and
installation works. Be careful power is not turned on unintentionally
while working on the dampener. In a noisy or dark place, display a sign
of "Men Working" near the power supply switch.
● Do not remodel the auto-dampener
Never remodel the auto-dampener. Remodeling may cause serious
injury or damage due to electrical shock. We are not responsible for
any accident or damage arise from modification.
● Prohibited installation/storage place
To avoid fire or injury, do not install or store the dampener in:
• Flammable atmosphere.
• Dusty place.
• Corrosive atmosphere.
Power off
No remodeling
Prohibited
● Ventilation
Risk of poisoning. Keep your working site ventilation when handling a
toxic/odoriferous liquid.
● Wear protective clothing
Be sure to wear protective clothing such as safety goggles, protective
gloves etc. during maintenance and/or inspection.
● Returns
When the dampener is sent back to IWAKI, drain the liquid out of the
dampener and clean thoroughly with water to prevent any accidents in
transportation.
-
2
-
Wear protective
gear
Safety instruction
CAUTION
● Countermeasure against static electricity
When low electric conductivity liquid such as the ultra-pure water and
the fluor inactive liquid (e.g. Fluorinert™) are handled, static electricity
may generate in the pump, which may cause a static discharge and the
pump breakage. Take a countermeasure for removing static electricity.
● When pump is stopped
• When pump is stopped, release pressure on the discharge side first.
Otherwise the bellows may be deformed due to the residual pressure
on the pump discharge side.
• If a valve is provided on the discharge side, do not close the valve
when pump is stopped to avoid impactive pressure resulting in deformation of bellows or connecting plate.
● Pump at halt
• Do not supply air to both the right and left air-supply ports at the same
time to prevent the bellows from deformation.
• If the pump or dampener is stopped for a long time with the liquid
inside, the gas may be generated to penetrate the bellows and corrode the metallic parts. When the pump or dampener is stopped for 2
days or more, operate them for about 10 minutes a day to replace the
air.
Prohibited
Prohibited
● Air exhaust port
Do not choke (make tube dia. smaller) air exhaust port to avoid bellows
deformation due to residual air.
● Before operating the pump & dampener
Fully open pump suction and discharge valves. Confirm that liquid is
filled in piping.
● Supply air pressure
Do not supply air exceeding 0.5 MPa to prevent bellows from deformation.
● Prohibited liquids
Do not handle the following liquids.
• Liquid easily crystallizes
• Liquid containing slurry
• Solvent naphtha, stripping agents or solvents
● Disposal of used dampener
Disposal of used or damaged dampener must be done in accordance
with local laws and regulations. (Consult a licensed industrial waste
products disposing company.)
● Do not close a discharge valve which is positioned beyond the
dampener in operation.
Impactive pressure may deform the pump and dampener.
Prohibited
Prohibited
Prohibited
-
3 -
Product outline
1. Unpacking and inspection
2. Outline of product
3. Model code
4. Specification
5. Dimension and mass
6. Structure and names of parts
7. Main parts and labelling
-
4
-
..................................................
................................................
.......................................
........................
.................................
............................
..................
5
5
5
6
7
8
9
Inlet
Pressure
adjusting valve
Pressure
adjusting valve
Air supply
Bellows
Outlet
Air exhaust
1. Unpacking and inspection
After unpacking the product, check the following
points to ascertain that the product is exactly your
ordered one.
(1) if the model code on the nameplate is the same as
your order.
(2) if the product is not broken or bolts and nuts are not
loosened during transportation.
2. Outline of product
IWAKI auto-dampener the PDA-W series are
exclusively designed for the pneumatic driven bel-
lows pump to dampen the liquid pulsation.
The liquid discharged from the pump is transferred
to outlet through bellows. At this moment, the sup-
ply air is automatically adjusted by the pressure
regulating valve and this functions to dampen the
liquid pulsation.
3. Model code
PDA - 20 W -
Series code
Capacity (Max. discharge capacity of corresponding pump)
20 : 20 L/min. 40 : 40 L/min. 80 : 80 L/min.
Special version
No symbol : Standard version With symbol : Special version
-
-
5 -
5
-
Loading...