amxiseries magnetically driven chemical pump user manual
Contents
1. 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 AMXI 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 5 Fastening the pump to base plate or machine with anchor bolt 6 May not be used at altitudes above 1000 m Ne Install in the place where the ambient temperature is not above 40 C 1 Be sure to use the hanger bolt to liftethe 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 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 WARNING gt 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 C2. Annex C Description of ATEX specific marking 1 The ATEX specific marking of pump body without motor is 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 x Il 2 G c HWA T4 Distinctive Community mark Equipment group Equipment category Where explosive atmospheres caused by gases vapors or mists are concerned Protection type Constructional safety Temperature class Max permissible surface temperature 135 9 n e m ES 1 When pump is installed in a potentially explosive atmosphere be sure to select 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 pump below the minimum recommended flow rate for over minute gt 18
3. During operation 1f 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 on A priming piping must be installed if the suction system does not amp General employ positive pressure 1 e upward suction see Fig 4 1 requirements The flow rate in the outlet piping should not exceed 3m sec E The ability for each component in the piping system to withstand pressure should be calculated to determine the maximum allowable operating pressure AMXI SERIES Items to Note Upward suction pumps that do not have a self priming cylinder should have a priming piping system Pressure gauge used should be able to read beyond the maximum Priming piping Pressure gauge Check valve Control valve Exhaust valve 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 i 2 3 4 5 Outlet piping is l
4. Lp J 10 Inlet Piping a A E 11 Inlet Piping Support 9 Ve 12 Vibration Damper 19 ll 3 Da fi 13 Filter l ES all JH elt 0 0 1 0 02 slope ia Good 14 Inlet Tank 23s qa Mhd a ie P 15 Foot Valve A 14 EN 7 i f a LI SI FRAIL 155 J ae _ Va i ALIAS F eg Mi Fig 4 1 Fig 4 2 Bad Piping Designs i F HU 30 5 Eo a i or db gt 2D gt 1 5D E gee _ D Diameter gt 1 5D Y p F D BS Fig 4 4 i i Y LY Li NZ Fig 4 3 AMXI 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 The pipes should have 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 s
5. AUTION 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 4 2 Piping 1 AMXI flange screw is either M16 or 5 8 The tightening torque is 5 N m 2 The allowable load of pipe on the pump Model Fx Fy Fz F Mx My Mz M amao A g laoo 350 350 00 120 150 120 250 amx 400 350 350 600 120 150 120 250 Amxtesanisaaisas 400 350 350 600 150 180 150 300 AMXI SERIES Model AMXI 441 350 400 350 600 120 150 120 250 AMXI 542 543 545 400 500 400 800 150 180 150 300 AMXI 655 653 400 500 400 800 150 180 150 300 X The values in table are reference ones within 40 C 4 3 Notes for Installing the Piping System 1 Outlet Piping 2 Throttle Valve 3 Priming Piping 4 Priming Valve Wich ge ha 7 5 Check Valve a aI N e 6 Outlet Pressure Gauge 4 ON gt 5 w 1 7 Motor x Z 6 z 8 Pump ae eo 3 td s A 9 Inlet Pressure Gauge
6. ES Starting the pump without priming Dry running causing damage to pump Low speed or wrong rotation direction Low fluid flow 1 Low performance ae vibrations caused by sucked in air Low inlet tank fluid level 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 1 Low NPSHa resulting in cavitation Transfer fluid temperature too high 2 Reduced strength of the magnet resulting in decoupling l l i l Rapid wearing of the bearing a paueles 2 Wearing of the impeller and casing surfaces Deformation of the O ring Result in leakage 1 Resulting in vibrations and noise 2 Reduced pump performance and fluid flow 1 Produce vibrations and noise 2 Overloads the motor 3 High Motor temperature 1 Produce vibrations and noise 2 Overloads the motor 1 Produce vibrations and noise s May result in fracturing of the impeller shaft Prea pump E T and low flow rate Blockage of inlet piping or foot valve or may result in cavitation Serious cases may result in dry running Low flow or no flow Pump unable to dissipate heat Serious cases may result in overheating of the pump and outlet piping Low flow over extended p
7. I 542 543 545 653 AMXI 655 Note The above data is based on water For volatile or viscous fluids consult your local distributor Do not operate the pump with outlet valve shut off more than 1 minute Long time shut off will cause the inside to heat up and damage the pump CAUTION 10 AMXI SERIES 6 Operating Procedure and Notes 6 1 Notes Prior to Starting the Pump 1 2 3 4 5 Check the motor s power rating including frequency voltage and wiring Recheck to make sure all the parts flange pump casing base plate etc are securely fastened Fill the pump with liquid priming to remove any air within the pump and suction piping Check to ensure the inlet valve is open 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 2 3 4 Check the direction of rotation of the motor by rapidly switching on and off the power 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 Close the outlet valve and start up the pump 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 2 3 4 Shut
8. aftag AMAT IECQ HSPM MAGNETICALLY DRIVEN CHEMICAL PUMP USER MANUAL SS AIMA IN Symbols used DANGER AN WARNING CAUTION 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 failure to follow this manual could result in death or serious bodily injury Situation where improper handling or operation failure to follow this manual could result in bodily injury 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 AMXI SERIES Table of Contents Foreword Safety Requirements Inspecting the Pump Prior to Unpack the Carton Install the Pump Installation Piping and Wiring Notes for Operation Operating Procedure and Notes Maintenance and Inspection Incorrect Usage and Selection l 2 3 4 5 6 7 8 9 Repair and Warranty Annex A Disassembling the AMXI Pump Annex B Exploded View and Parts List Annex C Description of ATEX specific marking AMXI SERIES 1 Foreword Thank you for purchasing an ASSOMA pump To ensure proper oper
9. ation 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 ACE certified motor should be used The explosion proof rating of the AMXI 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 C 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 AMXI rotor including the drive magnet and driven magnet uses strong permanent magnet Pay attention to pote
10. bricant at open bearing proper level Front and Rear Casing 12 AMXI SERIES 7 3 Maintenance and wear tear limits Unit mm Table 7 3 14 5 Shaft outer diameter einai eee Thrust ring thickness 7 Wear ring thickness 7 Ce S Note Table 7 3 provides the recommended dimensions for the bearing and shaft However the total wear between the shaft and bearing bearing ID shaft OD must not exceed 0 5 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 Maintenance 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 AMXI is made at factory with vibration below 3 0 mm sec rms measured at flange edge of bracket and the noise value is below 80 dB at rated point LCL Measured Data UCL Upper control Limit ime LCL Lower control Limit time Fig 7 1 1 AMXI 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 DANGER repair or inspection Make special provisions so that no ot
11. down the pump immediately in the case of cavitation or dry running If decoupling should happen shut down the pump to prevent reducing the magnet s strength During power outages shut off the pump s power supply and close the outlet valve When switching on the pump with the outlet valve closed the outlet pressure should 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 2 3 Close the outlet valve slowly to prevent damage to the pump due to reverse fluid flow water hammer Shut off the pump It should stop gradually If not check the interior of the pump for problems The pump should be checked periodically If the pump is used in a cold operating environment 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 l1 AMXI SERIES 7 Maintenance and Inspection 7 1 Daily Inspection See Table 7 1 Table 7 1 Appearance 1 Check for oxidation or corrosion of the front casing bracket and base plate Check for leakage of the pump and the piping sys
12. er 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 AMXI SERIES 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 to Figure 5 1 for the recommended maximum operating pressure for our AMXI SERIES pumps 10 8 6 P Kg cm3 AMXI 542 543 545 653 655 4 AMXI 441 2 AMXI 420 0 0 20 40 60 80 T C Figure 5 1 5 6 Minimum Flow Our pump uses the pumped fluid as its cooling and lubricating system A low flow rate may result in 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 Table 5 1 Unit l min 0 0 0 0 AMXI 420 441 AMX
13. eriod of time Improper Operation Damaged impeller Damaged motor bearings ai iid of the impeller bearings Improper Maintenance Blockage of the outlet piping 9 Repair and Warranty When a problem arises please read this instruction manual and try to troubleshoot the problem If the problem cannot be found or 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 15 AMXI SERIES Annex A Disassembling the AMXI Pump A 1 Preparing for Disassembly 1 The magnets used in our AMXI 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 A 2 Assembly Please follow the reverse procedure for disassembly to assemble the AMXI pump However during assembly please pay attention to the following points 1 To attach the outer magnet to the motor shaft apply some grease to
14. hemical 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 3 When using the pump for outdoor applications please make sure the switch is protected 7 AMXI SERIES 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 connection 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 pT Min vire size Recommended 3 Hp amp below _ 200 480 V si 200 230 V 380 480 V Table 4 2 Terminal screw and tightening torque M4 15 kgf cm MS kgfm a a M6 _ s4S
15. her 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 AMXI SERIES When handling a toxic or odorant liquid ventilate the working area well In 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 to 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 Be careful with hazardous liquids If pumping dangerous chemicals be sure to drain and wash well before CAUTION disassembling A small amount of fluid may however remain in the internal parts or pipe fittings 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 Exces
16. kgf cm a 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 Be sure not to performing any type of maintenance A the power turns on It may lead to electric shock Power supply and wire connecting work should be performed by qualified 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 consistent with the third type of grounding grounding resistance is 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 AMXI SERIES 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 pri
17. ming 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 PPG 0 80 C Body material ETFE CF 0 95 C 3 Please consult the 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 reachable hot surfaces including pumps motors and piping must provide isolate device and display CAUTION obvious warning signs for high temperature 5 3 Concentrations Viscosity and Specific Gravity 1 A change in a fluid s concentration will usually affect its viscosity and specific gravity When the pump is used to feed a hot liquid do not touch the front cover or the 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 diff
18. ntial 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 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 AMXI 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 an
19. ong Head of outlet is more than 15 m Discharge pressure exceeds 2 kg cm and flow rate exceeds 3 m sec Two or more pumps share the same outlet piping system 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 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 allocation is pump gt check valve gt control valve A vent should be installed if the horizontal section of the outlet piping is very long 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 c
20. sive 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 1 Corrosion and cracking Wrong pump material selected 2 Rapid corrosion and wearing of bearing 3 Corrosion of the O ring resulting in leakage 1 Produce high frequency vibrations and noise Inlet pipe not submerged sufficiently 2 Fracturing of the bearing and thrust rings into the fluid or air sucked into piping l3 Reduced pump performance system NPSHa too low resulting in cavitation Incorrect System Calculations or Incorrect Pump Selected Viscosity higher than anticipated 4 Serious cases can lead to dry running ic bed 1 Reduced pump performance ae 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 Leaking foot valve or inlet piping period resulting in dry running when pump is restarted Parallel pumps improperly installed Improper Piping or Layout 14 AMXI SERI
21. tem 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 power supply 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 Table 7 2 Inspection Item 1 Cracks 2 Scratch marks except when pumping 2 Contact the distributor particle laden fluids 3 Crystallization or sludge 4 Shaft support loose or deformed 4 Contact distributor Replace 1 Scratch marks or cracks 1 Contact distributor 2 Cracked bearing or crystallization 2 Contact distributor Impeller and 3 Bearing displays signs of some wear 3 Replace if worn excessively Magnet and tear Assembly 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 using 2 Keep amount of lu
22. the shaft and using a mallet drive the magnet down the shaft via a thick plastic plate see Fig A 1 2 Check if there is any crack on the surface of the thrust ring and wearing ring prior to assembling them 3 Use a hand press to gradually and firmly press the shaft into the shaft support 4 When pressing the shaft bearing into the impeller make sure the cut ledge of the bearing matches the straight edge inside the impeller 5 When fastening the different parts of the pump make sure to fasten the corresponding opposite screws in turn to ensure a uniform tightness 6 After the entire pump is assembled use a small screwdriver to rotate the motor cooling fan to ensure everything is installed correctly 16 AMXI SERIES Annex B Exploded View and Parts List ROI 30 N 1 M01 Motor Impeller RG NO O ring According to No AS568 Each type is referring to the sectional drawing Note The motor flange thickness may vary between different motor brands models when replacing with a different motor Please select the proper bolt specification length or contact your nearest distributor or agent recommendations N is IN a ear 6 Di i fii ea Ai iI jjj J EA ca yy Yay ia 17 AMXI SERIES
23. ubmerge 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 op Inlet piping There should be a distance of at least 1 5D between the bottom of the 2 tank and the beginning of the inlet pipe opening see Fig 4 4 3 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 5 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 the 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 Control valve detached 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 The material used should be corrosion resistant otherwise a pressure gauge diaphragm should be used Vacuum gauge ne a
24. y 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 Although some motor marked usable for both 50 Hz and 60 Hz but the impeller size of the pump should be trimmed according to frequency applied Apply under inadequate frequency may cause motor overload use under higher frequency or pump under performance use under lower frequency Nameplate information including motor nameplate and pump nameplate plays an important role for the operation and maintenance of the pump It 1s proposed to re copy data on nameplates and store it securely The flow and head on the nameplate is the rated operating point or the operating point made to customer demand Where Head means Total head Total Head Static Head Dynamic Head Wg Total head H 28 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 WARNING the pump strictly in accordance with the pump specifications and application range If the user intends to change any specification contacts ASSOMA INC
Download Pdf Manuals
Related Search