Assoma AM Series User manual

SERIES
MAGNETICALLY DRIVEN CHEMICAL PUMP
USER MANUAL

Symbols used
Situation where improper handling or operation failure to follow this manual
would almost certainly result in death or serious bodily injury.
Situation where improper handling or operation or failure to follow this manual
could result in serious bodily injury or death.
Situation where improper handling or operation or failure to follow this manual
could result in bodily injury and/or equipment damage.
When pump is installed in an environment with a potentially explosive
atmosphere, strict adherence to our instructions must be followed (shown in this
manual with the Ex symbol). Situation where improper handling or operation or
failure to follow instructions in this manual would almost certainly result in
serious bodily injury or death.

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1
Table of Contents
1.Foreword......................................................................... 2
2.Safety Requirements ....................................................... 2
3.Inspecting the Pump Prior to Installation........................ 3
4.Installation, Piping and Wiring ....................................... 4
5.Notes for Operation....................................................... 11
6.Operating Procedure and Notes .................................... 12
7.Maintenance and Inspection.......................................... 13
8.Incorrect Usage and Selection....................................... 15
9.Repair and Warranty...................................................... 17
Annex A: Exploded View and Parts List.......................... 18
Annex B: Description of ATEX-specific marking ...........19

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1. Foreword
Thank you for purchasing an ASSOMApump. To ensure proper operation and
maximum efficiency, please read this instruction manual carefully. Failure to follow the
recommended operating instructions outlined in this manual may result in serious personal
injuries and/or equipment damage.
2. Safety Requirements
This section lists general information about safety. The relevant safety requirements of
installation, wiring, operation and maintenance will set out in the relevant sections.
ASSOMA INC. may not be held responsible for personal loss or property damage resulting
from failure to follow the safety instructions contained herein.
1. A CE certified motor should be used.
2. The explosion-proof grade of AM series pump is dependent on the material
selected and motor used. Please consult our order specification sheet or
contact one of our local representatives to select the best product for your
needs. Refer to Annex B. for a description of the ATEX markings.
3. Be sure to turn off the power before connecting, disconnecting or making any
changes to the pump’s wiring.
4. The customer shall not modify the pump under any circumstances. Doing so
could result in an unexpected accident. ASSOMA INC. shall not be
responsible for accidents or damage resulting from equipment modified by the
customer.
5. Be sure to take special precautions when performing operations if using
hazardous, explosive or inflammable liquids.
6. Strong magnetic field warning: The AM pump uses strong permanent magnets
which may affect certain medical devices (such as pacemakers). Personnel with such
devices are advised to consult their physician and device manufacturer to determine a
safe distance from the pump.
1. The pump operator and pump operation supervisor must not allow any
operator who has little or no knowledge of the pump to run the pump. Pump
operators must have a sound knowledge of the pump and its operation.
2. Do not use a damaged pump. Doing so could result in injury or fire.
3. Keep the pump away from heat source or direct flame. Do not place any open
flame or flammable object near the pump.
1. Transport, installation, piping and wiring connections, operation, adjustment,
maintenance and inspection should be carried out by qualified personnel.
Having unqualified personnel perform these tasks could result in electric
shock, injury or fire.
2. Do not block name plate or warning labels from view.
3. Do not stand on the pump or place heavy objects on the pump under any
circumstances. Failure to comply may result in equipment damage and/or
serious injury.
4. Disposal of used or damaged pump must be done in accordance with local
laws and regulations.

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3. Inspecting the Pump Prior to Installation
(1) Check the pump exterior for any physical damage that may have been incurred during
shipping.
(2) Use a small screwdriver to rotate the impeller of the motor’s cooling fan. The fan
should turn easily. If the fan feels tight or if there are unusual sounds, the interior of the
pump may have been damaged during shipping.
(3) If there is any damage to the pump, please contact the seller immediately to arrange for
replacement parts, and to allow for timely communication with the logistics company
to determine liability.
(4) Each pump has a name plate, indicating the pump model, MFG number, rated head,
flow rate, and motor power, voltage and frequency. Check these data to ensure they
comply with your order and application.
(5) Although some motors are marked usable for both 50 Hz and 60 Hz, the impeller size
of the pump should be trimmed according to frequency applied. Application under
incorrect frequency may cause motor overload (use under higher frequency) or pump
under-performance (use under lower frequency).
(6) Name plate information (including motor name plate and pump name plate) plays an
important role for the operation and maintenance of the pump. It is proposed to re-copy
data on nameplates and store it securely.
(7) The flow and head on the nameplate is the rated operating point or the operating point
based on customer demand. Where "Head" means "Total head”
Total Head= Static Head + Dynamic Head
2gV-V
HheadTotal 2
1
2
2
S
The pump is designed and manufactured to the specifications agreed upon by the
user and ASSOMA INC., such as fluid composition, fluid temperature, working
pressure, environmental conditions and necessary operational information. Use the
pump strictly in accordance with the pump specifications and application range. If
the user intends to change the operation condition, please contact ASSOMA INC.
or the authorized dealer in the near region to obtain the permission in writing
before operation.
Unpack a pump for inspection without proper hoisting, support or lifting
equipment may cause serious personal injury or damage to the pump.

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4. Installation, Piping and Wiring
4.1 Installation Location
(1) The pump should be close to the ground and located near the inlet tank.
(2) There should be sufficient space reserved around the pump to facilitate future
maintenance and repairs.
(3) The pump and its wiring should be placed in a relatively dry environment, protected
from possible flooding.
(4) Install in a location where the ambient temperature will not rise above 40 °C.
(5) Secure the pump to a level base plate or to equipment with anchor bolts.
(6) May not be used at altitudes above 1000 m.
1. Be sure to use the hanger bolt (where applicable) to lift the pump. Lifting from
other parts of the pump may damage the pump. When hoisting, do not pass
under a raised pump. A serious injury could occur if the pump is accidentally
dropped.
2. Before lifting, check the weight of the pump. Do not lift a pump which
exceeds the rated weight of the hoist. And, be sure no one is standing below
the pump while lifting or transporting.
Special care should be taken when installing or storing the pump in the following
places. Please consult with ASSOMA INC. or authorized dealer in the near region:
1. Places where flammable gas, dust or material is used or placed.
2. Places where corrosive gas is generated.
3. Places where the ambient temperature is higher than 40 °C or lower than 0 °C.
4.2 Piping
(1) AM-30/50 flange screw is either
M10 or 3/8”. The tightening torque
is 5 N-m.
(2) The allowable load of pipe on the
pump is as follows:
XY
Z
Z
Y
X
Model SUCTION Force (N) Moment (N-m)
Fx Fy Fz ΣF Mx My Mz ΣM
AM-10 60 50 50 90 10 15 10 30
AM-30 100 80 80 140 25 40 25 60
AM-50 120 100 100 160 25 40 25 60

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Model DISCHARGE Force (N) Moment (N-m)
Fx Fy Fz ΣF Mx My Mz ΣM
AM-10 50 60 50 90 10 15 10 30
AM-30 100 120 100 160 25 40 25 60
AM-50 100 120 100 160 25 40 25 60
Note: The values in table are applicable for within 40 oC
4.3 Notes for Installing the Piping System
14 12
10 119
4
3
13
1
2
5
7
8
6
15
1.Outlet Piping
2.Throttle Valve
3.Priming Piping
4.Priming Valve
5.Check Valve
6.Outlet Pressure Gauge
7.Motor
8.Pump
9.Inlet Pressure Gauge
10.Inlet Piping
11.Inlet Piping Support
12.Vibration Damper
13.Filter
14.Inlet Tank
15.Foot Valve
Fig. 4.1
Good
Bad
0.01~0.02 slope
Fig. 4.2
Bad Piping Designs
Fig. 4.3
>1.5D
>0.5m
or
>2D
>1.5D
D=Diameter
Fig. 4.4

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Procedure Items to Note
Inlet Piping
General
requirements
1. Suction condition must satisfy NPSHa>NPSHr+0.5 m.
2. Reduce inlet Head as much as possible. Use straight and short piping.
3. The pipes should have adequate structural support and shouldn’t use
the pump as its primary support. (see Fig. 4.1)
4. When designing supports, consider the effects of temperature changes
on the supports to avoid thermal stress.
5. Inlet piping and connectors should be installed properly to prevent
drawing in air.
6. The piping system should not have upward bumps that may collect air.
The inlet piping should also have a 0.01~0.02 slope increase towards
the pump. (see Fig. 4.2)
7. There should not be any elbows for at least 5 times the pipe diameter
from the opening of the pump. The elbow closest to the pump opening
should be a long radial elbow.
Inlet piping
1. There should be at least a 1.5 diameter distance between the pipe inlet
and the closest tank wall to prevent circulation. (see Fig. 4.4)
2. The submerge depth of the inlet should be at least 0.5m or at least
twice the pipe diameter below the liquid surface. (see Fig. 4.4)
3. There should be a distance of at least 1.5D between the bottom of the
tank and the beginning of the inlet pipe opening. (see Fig. 4.4)
4. If there are two or more inlet piping in the same tank, they should be
placed at least 3D apart to prevent mutually disrupting each other’s
flow.
Foot valve Please install a foot valve if upward suction is used. (see Fig. 4.1)
Self-priming
cylinder
1. If suction method is upward suction, please install a self-priming
cylinder to prevent dry-running due to a leaking foot-valve.
2. The size of the self-priming cylinder should have a minimum liquid
level of at least 0.5 m above the opening of the pump.
Control valve
1. A control valve should be installed to make disassembling of the pump
easier. The valve should only be shut off when the pump is to be
detached for maintenance or repairs.
2. We recommend the use of valves that have the least loss when fully
opened, like a gate valve.
Filter
1. It is generally not recommended to install a filter in front of a pump,
which can unpredictably increase suction system resistance.
2. If a filter has to be used, it should be cleaned regularly to ensure a
smooth flow.
Vacuum gauge
1. The material used should be corrosion resistant; otherwise, a pressure
gauge diaphragm should be used.
2. During operation, if the vacuum gauge reading fluctuates, either there
are air bubbles in the system or cavitation has occurred.

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Procedure Items to Note
Outlet Piping
General
requirements
1. The weight of the outlet piping should be properly supported to prevent
putting excessive stress on the pump. (see Fig. 4.1)
2. A priming piping must be installed if the suction system does not
employ positive pressure, i.e. upward suction. (see Fig. 4.1)
3. The flow rate in the outlet piping should not exceed 3 m/sec.
4. The ability for each component in the piping system to withstand
pressure should be calculated, to determine the maximum allowable
operating pressure.
Priming piping Upward suction pumps that do not have a self-priming cylinder should
have a priming piping system.
Pressure gauge
1. Pressure gauge used should be able to read beyond the maximum
operating pressure.
2. Pressure gauge should be made of material that is corrosive resistant;
otherwise a diaphragm should be used.
3. A valve can
b
e installed on the piping that leads to the pressure gauge,
to facilitate maintenance and to lengthen the gauge’s service life.
4. During operation, if the pressure gauge reading fluctuates, either there
are air bubbles in the system or cavitation has occurred.
Check valve
A check valve should be installed in the following situations:
1. Discharge pressure exceeds 2 kg/cm2and flow rate exceeds 3 m/sec.
2. Two or more pumps share the same outlet piping system.
3. To prevent back flow (water hammer) from damaging the pump during
unexpected power outages.
Control valve
1. A control valve can be used for controlling the flow of fluids. Do not
run the pump with the control valve closed for an extended period o
f
time.
2. When starting the pump, always start with a closed valve, and then
slowly open the valve to obtain the desired operating pressure and
flow. Always open or close the valve gradually.
Exhaust valve A vent should be installed if the horizontal section of the outlet piping is
very long.
Inlet Piping
General
requirements
1. Suction condition must satisfy NPSHa>NPSHr+0.5 m
2. Reduce inlet Head as much as possible. Use straight and short piping.
3. The pipes should have adequate structural support and shouldn’t use
the pump as its primary support. (see Fig. 4.1)
4. When designing supports, consider the effects of temperature changes
on the supports to avoid thermal stress.
5. Inlet piping and connectors should be installed properly to prevent
sucking in air. (see Fig. 4.3)
6. The piping system should not have upward bumps that may collect air.
The inlet piping should also have a 0.01~0.02 slope increase towards
the pump. (see Fig. 4.2)
7. There should not be any elbows for at least 5 times the pipe diameter
from the opening of the pump. The elbow closest to the pump opening
should be a long radial elbow.

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Procedure Items to Note
Inlet piping
1. There should be at least a 1.5 diameter distance between the pipe inlet
and the closest tank wall to prevent circulation. (see Fig. 4.4)
2. The submerge depth of the inlet should be at least 0.5 m or at least
twice the pipe diameter below the liquid surface. (see Fig. 4.4)
3. There should be a distance of at least 1.5D between the bottom of the
tank and the beginning of the inlet pipe opening. (see Fig. 4.4)
4. If there are two or more inlet piping in the same tank, they should be
placed at least 3D apart to prevent mutually disrupting each other’s
flow.
Foot valve Please install a foot valve if upward suction is used.
Self-priming
cylinder
1. If suction method is upward suction, please install a self-priming
cylinder to prevent dry-running due to a leaking foot-valve.
2. The size of the self-priming cylinder should have a minimum liquid
level of at least 0.5 m above the opening of the pump.
Control valve
1. A control valve should be installed to make disassembling of the pump
easier. The valve should only be shut off when the pump is to be
detached for maintenance or repairs.
2. We recommend the use of valves that have the least loss when fully
opened, like a gate valve.
Filter
1. It is generally not recommended to install a filter in front of a pump,
which can unpredictably increase suction system resistance.
2. If a filter has to be used, it should be cleaned regularly to ensure a
smooth flow.
Vacuum gauge
1.The material used should be corrosion resistant; otherwise, a pressure
gauge diaphragm should be used.
2.During operation, if the vacuum gauge reading fluctuates, either there
are air bubbles in the system or cavitation has occurred.
Outlet Piping
General
requirements
(see Fig. 4.1)
1. The weight of the outlet piping should be properly supported to prevent
putting excessive stress on the pump.
2. A priming piping must be installed if the suction system does not
employ positive pressure, i.e. upward suction.
3. The flow rate in the outlet piping should not exceed 3 m/sec.
4. The ability for each component in the piping system to withstand
pressure should be calculated, to determine the maximum allowable
operating pressure.
Priming piping Upward suction pumps that do not have a self-priming cylinder should
have a priming piping system.
Pressure gauge
1. Pressure gauge used should be able to read beyond the maximum
operating pressure.
2. Pressure gauge should be made of material that is corrosive resistant,
otherwise a diaphragm should be used.
3. A valve can be installed on the piping that leads to the pressure gauge,
to facilitate maintenance and to lengthen the gauge’s service life.
4. During operation, if the pressure gauge reading fluctuates, either there
are air bubbles in the system or cavitation has occurred.