MAGNETICALLY DRIVEN CHEMICAL PUMP
Contents
1. 523 d d 912 d ri A 7 y F OR 5 M p K RG114 343 RG451 lt m 403 AFY 890 RG368 161 02 or 403 X65 23 340 211 847 920 921 B22 AMA SERIES Annex F Exploded View and Parts List of AMA FP Pump casing ETFE CF A 230 C wo owe 155 01 155 03 MO01 181 161 01 EM i b pu N i L ZNA2. m Magnet capsule ETFE Nd Fe B SUS316 ETFE with cover FRP ROMA s e PLA Ur paene 7 uM MEM a O ea NE NEM K MO Drivemagnet Nd FeB 8900 RG368 N Bs J 181 02 310 211 847 920 921 B22 IRG O ring a VITON EDM 403 X65 403 jGaket VITON EPDM PTFE 24 AMA SERIES Annex G Description of ATEX specific marking 1 The ATEX specific marking of pump body without motor 1s indicated on the name plate 2 Please check the name plate on the motor for ATEX specific marking for the motor The ATEX specific marking indicated on the name plate of pump 9 I 2 G c TA T4 Distinctive Community mark Equipment group Equipment category EN Where explosive atmospheres caused by gases vapors or mists are concerned Protection type Constructional safety T Temperature class Max permissible surface temperature 135 C an explosion proof motor and make sure both the pump and the motor are suitably rated for the environment DANGER 2 Both pump and motor must be properly grounded or there may be a risk of static electric discharge 3 Never run pump without priming Never operate the pum
3. H K MEN MD LN MEN G MIN M SE a AS x m Ub E I TENERA G No Pat Material Pump ca ing ETFE CF 155 01 155 03 161 01 847 02 181 EM Front support haft ka A Front thrust ring SSiC 995 ALO 101 ea 155 01 Casing armour FCD gt uw 155 02 Ae lt gt y 155 03 B 211 Shaft SSiC 995 ALO Aa 847 01 D 310 Bearing Ssic CARBON F COVET CARBON FRP On RR N 3 JA aS H Bll Base 4 A SUS304 RG114 Ld V als unm Ts pies Dh PA cus OS 21 183 racket aot 7 SUS of Nd Fe B 403s FC Aluminum Alloy EF ts 1 VITON EPDM B11 16102 310 847 01 211 314 183 403 Gasket gt VITON EPDM PTFE 2 0 AMA SERIES Annex D Disassembling the AMA DT FP Pump 1
4. Q p Parallel pumps improperly installed 5 S 5 e p Sam gt on E vo 2 S E a pd Leaking foot valve or inlet piping Low inlet tank fluid level Improper Operation Low flow over extended period of time AMA SERIES Abnormal Condition Possible Effect Damage 1 Low NPSHa resulting in cavitation Transfer fluid temperature too high 2 Reduced strength of the magnet resulting in decoupling l 1 Rapid wearing of the bearing a a HALE DAR CIUS 2 Wearing of the impeller and casing surfaces Deformation of the O ring gasket Result in leakage 1 Resulting in vibrations and noise Reduced pump performance and fluid flow Produce vibrations and noise Overloads the motor Damaged impeller 7 l 2 3 High Motor temperature 1 2 1 25 Damaged motor bearings Produce vibrations and noise Overloads the motor Produce vibrations and noise May result in fracturing ofthe impeller shaft Wear ring worn off 1 Reduced pump c9 and low flow rate or may result in cavitation Serious cases may result in dry running Low flow or no flow Pump unable to dissipate heat Improper Maintenance Serious cases may result in overheating of the pump and outlet piping 9 Repair and Warranty When a problem arises please read this 1nstruction manual and try to troubleshoot the problem If the problem cannot be found or
5. 2 M nntroevertoneeeeennaneenenn ne neeeeena 12 8 Incorrect Usage and Selection ssssseeeeeeeeeel 15 9 Repair and Warranty F i 1 6 Annex A Disassembling the AMA CT EP Pump 1 Annex B Exploded View and Parts List of AMA CT 19 Annex C Exploded View and Parts List of AMA EP 20 Annex D Disassembling the AMA DT FP Pump Al Annex E Exploded View and Parts List of AMA DT A9 Annex F Exploded View and Parts List of AMA FP 24 Annex G Description of ATEX specific marking 29 AMA SERIES 1 Foreword Thank you for purchasing an ASSOMA pump To ensure proper operation and maximum efficiency please read this instruction manual carefully Failure to follow the recommended operating conditions outlined in this manual may result in serious personal injuries and or equipment damage 2 Safety Requirements This section lists general information about the safety The relevant safety requirements of installation wiring operation and maintenance will set out in the relevant sections ASSOMA INC does not assume responsibility for personal danger or property damage resulting from failure to follow the safety instructions contained herein A CE certified motor should be used The explosion proof grade of AMA series is varied according to materi
6. M10x30L inner hex screws 2 Hoist motor and bracket to pull out from the pump head Step 2 J Place the motor safely with suitable support to prevent the danger of tumbling 1 Unscrew inner hex screws M10x30L 2 Dismount backup plate and rear casing 3 Remove O ring or gasket Noe aware of the safety of person and the pollution of the liquid The liquid left inside the pump will leak or flow out of the pump when the backup plate is disassembled 2 When taking off backup plate use your finger against the impeller to prevent it dismounted together and cause damage Step 3 1 7 AMA SERIES 1 Dismount impeller magnet bearing assembly and rear thrust ring 2 For AMA CT series Buffer thrust ring assembly shaft and front shaft support can be dismounted AN Pull out impeller from the Shaft carefully Don t separate the parts forcibly to prevent breakage Magnet capsule being demagnetization Any deformation or imbedded particles or swollen on the impeller Wear and tear of bearing and wear ring 4 Any crack on thrust ring and shaft Any corrosion being detected on the Any scratch mark being detected on wetted parts impeller front casing and rear casing Items to check 18 AMA SERIES Annex B Exploded View and Parts List of AMA CT I I A C I I I I I i I I pr I E I I I gt T T MM i e US EN ee Se m
7. result in electrical shock injury or fire Do not block name plate or warning labels for view Do not stand on the pump or use the pump as s step under any circumstances Otherwise you may experience a serious injury Disposal of used or damaged pump must be done in accordance with local laws and regulations AMA SERIES 3 Inspecting the Pump Prior to Unpack the Carton Install the Pump 1 2 3 4 5 6 7 Check the pump exterior for any physical damage that may have been incurred during shipping 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 If there is any damage to the pump contact the shipping company and the distributor immediately to determine who should pay for the damage and to arrange for replacement parts Each pump has a nameplate 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 When using versatile motor with 50 Hz and 60 Hz compliance be sure to use suitable diameter of impeller according to the frequency of power A wrong diameter can cause the motor overload frequency is too high or insufficient pump performance frequency is too low The information of nameplates on motor and p
8. 000 m 1 Be sure to use the hanger bolt to lift the pump Do not hang with the other position of the pump When hoisting do not pass under a raised pump A serious injury could occur if the pump is accidentally dropped WARNING 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 standing below the pump while lifting or transporting UTION 2 Places where corrosive gas is generated 3 Places where the ambient temperature is extremely higher than 40 C or extremely lower than 0 C Install or store the pump in the following places with special care and consult with ASSOMA INC or authorized dealer in the near region 1 Places where flammable gas dust or material is used or placed CA 4 2 Piping 1 AMA flange screw is either M16 or 5 8 AMA s flange screw specifications and tightening torque Tightening torque Recommended 850 kgf cm 850 kgf cm 2 The allowable load of pipe on the pump SUCTION Model Force N m AMA CT 1200 1100 900 1500 600 600 AMA DT 1600 1200 1000 1800 600 2000 AMA SERIES DISCHARGE Model AMA EP 800 900 1000 1500 600 500 600 800 _ AMA CT 800 900 1000 1500 600 500 600 800 AMA DT 900 1000 1000 1500 700 600 700 1000 AMA PP 900 1200 1000 1600 700 55600 700 1000 gt X T
9. The magnets used in our AMA DT FP magnetic drive seal less pumps have very strong magnetic strength Take extra precautions when disassembling the pump to prevent personal injury and damage to electronic and magnetic equipments like diskettes magnetic stripe cards etc 2 For personal safety wear protective gear like corrosive resistant aprons and protective eyeglasses during disassembly to prevent injuries caused by spilled chemicals 3 Please follow the reverse procedure for disassembly to assemble the AMA DT FP pump Note Following steps are for periodic maintenance or repair under abnormal condition 1 Switch off power 2 Shut off inlet amp outlet valves 3 Use 12 open end wrench to unscrew the drain plug 4 Drain the pump and use proper container to keep the liquid AN For personal safety wear protective gear like corrosive resistant aprons gloves and protective eyeglasses during disassembly 1 Dismount pump head by unscrew M12x 30L hex screws and M12x40L inner hex screws 2 Hoist motor and bracket to pull out from the pump head A Piace the motor safely with suitable support to prevent the danger of tumbling 1 Unscrew inner hex screws M10x20L 2 Dismount backup plate and rear casing 3 Remove O ring or gasket ANT the transmission fluid in the pump is not discharged completely when unlock the screws on the back cover the liquid will start to leak Please pay attention
10. afao Quality AMA SERIES ktl MAGNETICALLY DRIVEN CHEMICAL PUMP USER MANUAL Haal IL symbols used Situation where improper handling or operation failure to follow this manual N would almost certainly result in death or serious bodily injury DANGER Situation where improper handling or operation or failure to follow this manual could result in serious bodily injury or death WARNING Situation where improper handling or operation or failure to follow this manual could result in bodily injury and or equipment damage CAUTION 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 AMA SERIES Table of Contents 1 Foreword sess eene eene eene tires ne a annes senes 2 2 Safety Reguirements 4evtDhnnrrrnnnnnnnnnnnnnnanead uneeeeeee ee 2 3 Inspecting the Pump Prior to Unpack the Carton Install the Pump 3 4 Installation Piping and Wiring leeren 4 5 Notes for Operation 4 su 0oD oorororooebhnnnnnnaneaeeeeeeeeeeeeea 9 6 Operating Procedure and NoteSm Min eoDbeeerrnnneeennneneeeeena ll 7 Maintenance and Inspection
11. als used together with type of motor matched Please consult our order specification sheet or contact one of our local representatives to select the best product for your needs Refer to Annex G for a description of the ATEX markings Be sure to turn the power off before any wiring or disconnection operations The customer should 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 Be sure to take special precautions when performing operations if using hazardous explosive or inflammable liquids Magnetic field hazard AMA rotor including the drive magnet and driven magnet uses strong permanent magnet Pay attention to potential hazards from powerful magnetic fields to persons such as who are assisted by electronic devices 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 Do not use a damaged pump Doing so could result in injury or fire Keep away from heat or flame Do not place any open flame or flammable object near the pump 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
12. ce Operational data like vibration flow rate voltage etc can be collected and upper and lower limits can be set for each of the values The collected data can be used for trend analysis see Fig 7 1 which can be a basis in which to determine when to carry out preventive maintenance The vibration value should be lower than 4 5 mm sec RMS measured on the surface 3 AMA SERIES of bracket and the noise level should be below 85 dB at operating point 3 E 5 UCL Upper control Limit LCL Lower conirol Limit Time Figure 7 1 AMN s powerful permanent magnetic coupling could adversely affect persons who are assisted by electronic devices such as pacemaker Be sure to turn the power off before performing any type of maintenance repair or inspection Make special provisions so that no other operator mistakenly turns on the power supply while someone is working on the pump In a noisy or poor visibility environment display a sign near the power supply switch to notify others that someone is WORKING on the pump Power supply mistakenly turned on during maintenance may lead to personal injury When handling a toxic or odorant liquid ventilate the working area well In N addition the operator must wear protector gear such as a safety mask safety goggles and protective gloves WARNING 2 No remodeling Remodeling of the pump by the user may result in serious injury electric shock or damage t
13. e hot surfaces including pumps motors and piping must provide isolate device and display CAUTION obvious warning signs for high temperature When the pump is used to feed a hot liquid do not touch the front cover or the AMA SERIES 5 3 Concentrations Viscosity and Specific Gravity 1 A change in a fluid s concentration will usually affect its viscosity and specific gravity Other physical properties like corrosiveness may also change with the fluid s concentration therefore the selected pump material should be able to withstand the corrosive properties of the fluid 2 When the fluid s viscosity and or specific gravity differ from that of water the shaft power flow rate and pump head may change also 5 4 Particle Size Sludge 1 The service life of a pump can be greatly shortened by pumping fluids that carry small particles or sludge Its service life is dependent on the concentration of the particles its size and hardness 2 For particle concentration less than 5 particle size smaller than 50 um and hardness within 80 Hs SSiC bearings may be used However a shorter than normal service life can be expected Should foreign matter enter the pump it may cause pump damage or failure Turn off the power at once and remove the obstruction CAUTION 5 5 Maximum Operating Pressure The pump s maximum operating pressure is dependent on the operating temperature and the structure of the pump Please refer
14. ection are based on the number wires phases power voltage and mode of start for the motor Be sure to connect the power cable in accordance with name plate for the motor and the connection diagram in the terminal box 6 All wiring operations must be in strict compliance with National Electrical Code and local regulations Make sure to choose the correct wire size and fasten the locking screws to the right torque to prevent loose connections Table 4 1 Wire size Min vire ize imen de l 2 LT i 2 as i ETS i Table 4 2 Terminal screw and tightening torque 10 5 Hp 10 Hp 15 Hp 20 Hp 5 Hp 80 kgf Table 4 3 Recommendations for Grounding Wire Cross sectional area of copper phase Minimum cross sectional area of the conductors supplying the equipment external protective copper conductors 16 lt S Sp v AMA SERIES Be sure not to performing any type of maintenance while the power turns on It may lead to electric shock Power supply and wire connecting work should be performed by qualified DANGER personnel only After wiring be sure to replace the terminal box cover in its original position Failure to do so could result in electrical shock Install an earth leakage breaker The operation of a pump without using an earth leakage breaker may cause an electrical shock Install an optional leakage breaker in the system before running operation WARNING 2 Grounding wire should be c
15. he self priming cylinder should have a minimum liquid level of at least 0 5 m above the opening of the pump 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 Control valve for maintenance or repairs We recommend the use of valves that have the least loss when fully Self priming cylinder opened like a gate valve It is generally not recommended to install a filter in front of a pump Filter which can unpredictably increase suction system resistance If a filter has to be used it should be cleaned regularly to ensure a smooth flow Ihe material used should be corrosion resistant otherwise a pressure Vacuum gauge diaphragm should be used gauge During operation if the vacuum gauge reading fluctuates either there are air bubbles in the system or cavitation has occurred The weight of the outlet piping should be properly supported to prevent putting excessive stress on the pump see Fig 4 1 A priming piping must be installed if the suction system does not employ positive pressure 1 e upward suction see Fig 4 1 requirements 3 The flow rate in the outlet piping should not exceed 3 m sec The ability for each component in the piping system to withstand pressure should be calculated to determine the maximum allowable operating pressure Outlet Piping AMA SERIES nlii suction pumps that do not have a
16. he values in table are applicable for within 40 C 4 3 Notes for Installing the Piping System 1 Outlet Piping 2 Throttle Valve 1 3 Priming Piping y 4 Priming Valve Ir 2 a E 5 Check Valve ES lt 6 Outlet Pressure Gauge 4 A gt 5 7 Motor wx VK 6 8 Pump ti Jr y KA 9 Inlet Pressure Gauge Lum 7 Vi 10 Inlet Piping UL Ht Y 11 Inlet Piping Support pe 2 12 Vibration Damper 1o 11 T5 EU S d 2 I 13 Filter p all i 0 01 0 02 slope i Good 14 Inlet Tank 13 p JL Se a 2 Er RR 15 Foot Valve y y mM r 14 A d i MS Sim HA IL 7 15 f p 4 is NM Y G JA y A 4 iii Vy Kull fa Z Fig 4 1 Fig 4 2 Bad Piping Designs 1 4 n Ww em de D a gt 1 5D AES D Diameter gt 1 5D Za VA Ww le A AMIE EAE Fig 4 4 4 y WMT Fig 4 3 AMA SERIES Items to Note suction condition must satisfy NPSHa gt NPSHr 0 5 m Reduce inlet head as much as possible Use straight and short piping Ihe pipes should ha
17. if replacement parts are needed please call the distributor and give them the following information 1 The pump model and manufacturing serial number indicated on the nameplate 2 The operating condition 3 The situation under which the pump fails Please refer to the warranty card for details of the warranty terms and conditions 16 AMA SERIES Annex A Disassembling the AMA CT EP Pump 1 The magnets used in our AMA CT amp EP magnetic drive seal less pumps have very strong magnetic strength Take extra precautions when disassembling the pump to prevent personal injury and damage to electronic and magnetic equipments like diskettes magnetic stripe cards etc 2 For personal safety wear protective gear like corrosive resistant aprons and protective eyeglasses during disassembly to prevent injuries caused by spilled chemicals 3 Please follow the reverse procedure for disassembly to assemble the AMA CT amp EP pump Note Following steps are for periodic maintenance or repair under abnormal condition Pump Disassembly 1 Switch off power 2 Shut off inlet amp outlet valves 3 Use 12 open end wrench to unscrew the drain plug 4 Drain the pump and use proper container to keep the liquid Step 1 AN For personal safety wear protective gear like corrosive resistant aprons gloves and protective eyeglasses during disassembly Dismount pump head by unscrew M12x 25L hex screws and
18. l ul PT y gt al M ae I LI md m o 1 B E I No Part x Material Front support T mI GOMA m 310 ri SSiC CARBON E a cover CARBON FRP 2 II o icd SAAKS RI SUS304 847 02 Drive magnet Nd Fe B NI EM Motor FC Aluminum Alloy RG Oring 9 VITON EPEM H oi 101 230 cu 155 02 219 155 03 847 02 161 01 181 EM im 9 Zz y f 7 A 91 2 e d E 4 161 02 if RG449 ae or 403 B11 19 AED ZA OO RS Mi A 847 01 310 mom AMA SERIES Annex C Exploded View and Parts List of AMA EP
19. llocation is pump check valve control valve Exhaust A vent should be installed if the horizontal section of the outlet piping is valve very long T Cautions when dangerous liquids are transferred When the pumps are used to transfer the dangerous liquids mentioned as below the pumps piping and fittings must be checked and watched so that the liquids can not be leaked Leaking the WARNING liquids may result in personal injury and or explosion fire accidents 1 Explosive and inflammable liquids 2 Corrosive and stimulus toxic liquids 3 Liquids could directly harm the human body or detrimental to health 4 Liquids could produce a chemical reaction 4 4 Wiring The wiring system should be done properly using premium equipment and complying with rules and standards set by the electrical company The following recommendations should also be implemented 1 Power frequency voltage and capacity should strictly follow according to motor specification sheet and name plates 2 Please select the proper non fuse switch NFB according to the rated current of the motor AMA SERIES 3 When using the pump for outdoor applications please make sure the switch is protected from rain 4 Keep the electromagnetic contactor MC from a pump with suitable distance and clearly mark warning sign to avoid false start 5 Tags at the end of wires or diagram shown in the terminal box and method of conn
20. ment relative to the fluid s freezing point the fluid may crystallize even if the pump is shut down for a very short amount of time To prevent crystallization a drain plug should be included in the piping system or a heating system could be used to maintain the temperature during shutdown 7 Maintenance and Inspection 7 1 Daily Inspection Table 7 1 Check for oxidation or corrosion of the front casing bracket and base plate Check for leakage of the pump and the piping system Check the pump exterior for any physical damage such as corrosion paint stripped off Operation 1 Check for irregular sounds and vibrations Check any abnormal overheat on the surface of motor three phase current 1s imbalanced bearing noise foreign material blocking the vent of fan Check the in tank fluid levels and inlet outlet pressures Check the current and motor loading Check and test run backup pumps regularly to ensure they can function properly when needed 7 2 Periodic Maintenance 1 The following items should be inspected quarterly referring to Table 7 2 2 Pump s disassembly assembly and notes to be attended refer to Annex A 3 Tightening torque recommendations for pump assembly refer to Table 7 3 Table 7 2 Cracks 1 Replace 2 Scratch marks except when 2 Contact the distributor pumping particle laden fluids 3 Crystallization or sludge 3 Clean 4 Shaft support loose or deformed 4 Contact dis
21. o the pump Do not attempt to remodel as it is very dangerous Magnetic field hazard Be careful not to get your hands or fingers pinched by parts Impeller is encapsulated strong magnet inside While do not let the magnet close to the magnetic sensitive objects such as magnetic cards computer equipment etc Use the right tools for any maintenance or disassembly and assembly 2 Becareful with hazardous liquids If pumping dangerous chemicals be sure to drain and wash well before disassembling A small amount of fluid may however remain in the internal parts or pipe fittings CAUTION 14 AMA SERIES 8 Incorrect Usage and Selection Abnormal Condition Possible Effect Damage System resistance too high 1 Insufficient or no flow or 2 Pump unable to effectively dissipate heat Pump head too low 3 Excessive wear on bearing and thrust rings Resistance lower than expected 1 Excessive flow or 2 Overloading of the motor Pump head too high 3 NPSHa too low resulting in cavitation 1 High frequency vibration and noise 2 Fracturing of the bearing and thrust rings 3 Decreased pump performance and low flow rate 4 Serious cases may result in dry running anticipated 2 Decoupling of the magnetic drive 1 Motor overloading 2 Decoupling of the magnetic drive 3 Decreased pump performance and reduced flow Corrosion and cracking 2 Rapid corrosion and wearing of bearing 3 Corrosion of
22. onsistent with the third type of grounding grounding resistance 1s 10 Q or less Each pump must have a separate grounding wire directly connected to the common ground terminal and must not form a loop between wires If the long wiring results more than 3 voltage drop in the line replaces with bigger size of wires 5 Notes for Operation 5 1 Dry Running 1 Our pump use the transfer fluid as its internal cooling system therefore dry running the pump can cause the temperature to rise to a dangerous level that may seriously damage the pump 2 If dry running occurs switch off the pump immediately let it cool for at least an hour before priming the pump to prepare it for normal operation NOTE Do not subject the pump to rapid cooling which may damage the internal parts 3 We recommend using a dry run protector to detect dry run occurrences to avoid causing unnecessary damage to the pump 5 2 Operating Temperature 1 Operating temperature may change the fluid s viscosity vapor pressure and corrosiveness Please ensure that your pump is operating within the proper temperature range 2 The optimal temperature range for pumping pure water Body material ETFE CF 0 95 C 3 Please consult the local distributor for the temperature range suitable for your chemicals 4 We recommend the operating environmental temperature to be between 0 C 40 C piping with your bare hands It may cause burns Any reachabl
23. p below the minimum Y recommended flow rate for over minute d 1 When pump is installed in a potentially explosive atmosphere be sure to select 20
24. self priming cylinder should have piping a priming piping system Pressure gauge used should be able to read beyond the maximum operating pressure Pressure gauge should be made of material that is corrosive resistant otherwise a diaphragm should be used 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 During operation if the pressure gauge reading fluctuates either there are air bubbles in the system or cavitation has occurred A check valve should be installed in the following situations 1 Outlet piping is long 2 Head of outlet 1s more than 15 m Check valve 3 Discharge pressure exceeds 2 kg cm and flow rate exceeds 3 m sec 4 Two or more pumps share the same outlet piping system 5 To prevent back flow water hammer from damaging the pump during unexpected power outages 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 of time 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 Control valve open or close the valve gradually To facilitate the adjustment of discharge flow and the adjustment of motor overload it is recommended to install valves on outlet piping And if both a check valve and a control valve are to be installed the order of a
25. switching on and off the power 2 Direction of motor rotation can be checked from the fan side It should be clockwise seeing from the fan cover follow arrow direction on the fan cover If the rotating direction reverses change wiring phases by shifting any two wire connections 3 Close the outlet valve and start up the pump 4 Slowly open the outlet valve when the motor has reached a stable speed Adjust the outlet valve to obtain the desired operating pressure or flow rate 6 3 Operating the Pump 1 Shut down the pump immediately in the case of cavitation or dry running 2 If decoupling should happen shut down the pump to prevent reducing the magnet s strength 3 During power outages shut off the pump s power supply and close the outlet valve 4 When switching on the pump with the outlet valve closed the outlet pressure should 11 AMA SERIES increase If the pressure fails to rise or if the pressure is too low shut down the pump and check the piping and wiring NOTE Outlet Pressure Inlet Pressure Pump Pressure Pump Pressure kg cm Fluid Specific Gravity Pump Head 10 6 4 Shutting Down the Pump 1 Close the outlet valve slowly to prevent damage to the pump due to reverse fluid flow water hammer 2 Shut off the pump It should stop gradually If not check the interior of the pump for problems 3 The pump should be checked periodically If the pump is used in a cold operating environ
26. the O ring or gasket resulting in leakage Inlet pipe not submerged sufficiently Produce high frequency vibrations and noise into the fluid or air sucked into piping 2 Fracturing of the bearing and thrust rings 3 Reduced pump performance 4 Serious cases can lead to dry running A 1 Reduced pump performance Air pockets in negin 2 Serious cases can lead to dry running Improper suction resulting in low efficiency insufficient flow cavitation or dry running Fluids within pump leaks during shut down period resulting in dry running when pump is restarted Starting the pump without priming Dry running causing damage to pump Low speed or wrong rotation direction Low fluid flow Incorrect motor frequency or voltage CU OUR of the motor 1 Low performance and vibrations caused by sucked in air Fracturing of the bearing and thrust rings Dry running Produce vibrations and noise Foreign objects stuck in impeller Reduced efficiency and flow Serious cases may result in dry running Insufficient cooling of pump 2 Excessive radial and axial force reducing service life of bearing and thrust rings Inlet valve closed Dry running seriously damaging the pump lo NPSHa too low resulting in cavitation Selected Viscosity higher than anticipated Wrong pump material selected j Q D i Q pm E un d e m Q pmi i Q 3 un gt gt un Q D fon
27. to Figure 5 1 for the recommended maximum operating pressure for our AMA SERIES pumps bar 16 A 0 95 C p Figure 5 1 AMA allowable working pressure 5 6 Minimum Flow Our pumps use the pumped fluid as their cooling and lubricating system A low flow rate may result 1n increasingly high temperature within the pump and increased radial and axial force thus affecting the pump s performance and service life Please use Table 5 1 for the recommended minimum flow rate 0 AMA SERIES Table 5 1 Unit L min Temperature 40 C 60 C 80 C 95 C 60 80 100 120 Note Above data is based on water For volatile or viscous fluids please consult your local distributor Do not operate the pump with outlet valve shut off more than 1 minute Long shut off time will cause the inside to heat up and may damage the pump CAUTION 6 Operating Procedure and Notes 6 1 Notes Prior to Starting the Pump 1 Check the motor s power rating including frequency voltage and wiring 2 Recheck to make sure all the parts flange pump casing base plate etc are securely fastened 3 Fill the pump with liquid priming to remove any air within the pump and suction piping 4 Check to ensure the inlet valve is open 5 Using a screwdriver rotate the motor s cooling fan to ensure it is not too tight or stuck 6 2 Starting Up the Pump 1 Check the direction of rotation of the motor by rapidly
28. to the staff s safety and the pollution to environment 21 Items to check AMA SERIES Magnet capsule being demagnetization or swollen Wear and tear of bearing and wear ring Any corrosion being detected on the wetted parts 26 1 Take off inner hex screws M10x40L assembly and rear thrust ring 2 Dismount bearing frame assembly and O ring or gasket impeller Unscrew shaft nut clockwise 2 Remove O ring nut and washer The tightening torque between nut and Shaft 1s 100N m 3 Remove magnet capsule and O ring 4 Dismount impeller shaft sleeve and bearing frame then remove shaft sleeve N Parts to be separated such as bearing frame with impeller shaft sleeve don t separate the parts forcibly to prevent breakage Any deformation or imbedded particles on the impeller Any crack on thrust ring and shaft b Any scratch mark being detected on impeller front casing and rear casing AMA SERIES Annex E Exploded View and Parts List of AMA DT Deomm ose jjj Pumpcasing ETFE CF A 230 C D 847 Magnet capsule ETFE Nd Fe B E ETFE F 16101 Rear casing ETFE CF CARBON with cover FRP 161 02 Backup plate H 912 Drain plug ETEE CE M01 181 161 01 EM
29. tributor Front and rear casing AMA SERIES O ring Gasket Deformed corroded or swollen 1 Scratch marks or cracks 1 Contact distributor 2 Cracked bearing or crystallization 2 Contact distributor 3 Bearing displays signs of some 3 Replace if worn excessively Impeller and wear and tear i 4 Crystallization and other sludge 4 Clean 5 Foreign objects stuck in impeller 5 Remove the objects 6 Impeller deformed 6 Contact distributor ring 2 Cracks 2 Replace 1 Resistance of three phases and 1 Repair or change if abnormal is insulation impedance found 2 Check amount of lubricant when 2 Keep amount of lubricant at using open bearing proper level Table 7 3 Tightening torque Recommended 50 kgf cm 1 2 450 kgf cm 7 3 Maintenance and wear tear limits Table 7 4 Unit mm New part Time to change Shaft outer diameter AMA CIEP Thrust ting thickness 1 6 Wear ring thickness Thrust ring thickness oe 9 Wear ring thickness 10 9 Note Table 7 4 provides the recommended dimensions for the bearing and shaft However the Shaft sleeve outer diameter AMA DT FP total wear between the shaft and bearing bearing ID shaft OD must not exceed 0 6 mm Similarly the total wear between the thrust ring and wear ring must not exceed 1 mm When replacing the individual parts you may choose to replace just the parts that have more wear 7 4 Preventive Maintenan
30. ump is key for operation setup and pump maintenance Please keep the nameplate intact for reference The nameplate of a pump indicates the optimum point of its operation Therein Total Head Static Head Dynamic Head 2 Total Head H 28 The pump is designed and manufactured to the specifications agreed upon by the user and ASSOMA ING such as fluid composition fluid temperature working pressure environmental conditions and necessary operational information Use WARNING the pump strictly in accordance with the pump specifications and application range If the user intends to change any specification contacts 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 or support of lifting equipment may cause serious personal injury or damage to the pump CAUTION AMA SERIES 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 the place where the ambient temperature 1s not above 40 C 5 Fastening the pump to base plate or machine with anchor bolt 6 May not be used at altitudes above 1
31. ve adequate structural support and shouldn t use the pump as its primary support see Fig 4 1 When designing supports consider the effects of temperature changes on the supports to avoid thermal stress General Inlet piping and connectors should be installed properly to prevent requirements sucking in air 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 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 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 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 EI pret Dee 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 If there are two or more inlet piping in the same tank they should be E 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 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 t
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