AM User manual
Contents
1. HTO Che QUALITY MANAGEMENT A MAI a MAGNETICALLY DRIVEN CHEMICAL PUMP USER MANUAL S Aoo Ii Symbols used Situation where improper handling or operation failure to follow this manual would almost certainly result in death or serious bodily injury DANGER Situation where improper handling or operation failure to follow this manual could result in death or serious bodily injury WARNING Situation where improper handling or operation failure to follow this manual could result in bodily injury or equipment damage CAUTION AM SERIES Table of Contents 1 Foreword 2 Safety Requirements 3 Inspecting the Pump Prior to Installation 4 Installation Piping and Wiring 5 Notes for Operation 6 Operating Procedure and Notes 7 Maintenance and Inspection 8 Incorrect Usage and Selection 9 Repair and Warranty Annex Exploded View and Parts List 1 Foreword AM SERIES 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 respo2. 1s to be detached for maintenance or repairs We recommend the use of valves that have the least loss when fully opened like a gate valve Filter It is generally not recommended to install a filter in front of a pump which can unpredictably increase suction system resistance 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 General The weight of the outlet piping should be properly supported to Requirements prevent putting excessive stress on the pump see Fig 4 1 A priming piping must be installed ifthe suction system does not employ positive pressure 1 e upward suction The flow rate in the outlet piping should not exceed 3m sec 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 Pressure gauge should be made of material that 1s corrosive resistant otherwise a diaphragm should be used A valve can be installed on the pipin
3. alr 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 Inlet Piping 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 placed at least 3D apart to prevent mutually disrupting each other s flow General Requirements Inlet Piping If suction method is upward suction please install a self priming Self Priming cylinder to prevent dry running due to a leaking foot valve Cylinder The size of the self priming cylinder should have a minimum liquid level of at least 0 5m 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 Control Valve be detached for maintenance or repairs We recommend the use of valves that have t
4. and other sludge 4 Clean 5 Foreign objects stuck in impeller 5 Remove the objects 6 Impeller deformed 6 Contact distributor 1 Resistance of three phases and 1 Repair or change if abnormal insulation impedance is found 2 Check amount of lubricant when 2 Keep amount of lubricant at using open bearing proper level Table 7 2 7 3 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 AM is made at factory with vibration below 3 0 mm sec rms measured at flange edge of bracket and the noise value is below 75dB at rated point UCL Measured Date LCL UCL Upper contorl Limit LCL Lower contorl Limit Time Fig 7 1 1 AM 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 other operator mistakenly turns on the power supply while someone is working on the 13 AM SERIES 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 pum
5. size and hardness 2 For particle concentration less than 5 particle size smaller than 50um and hardness within 80Hs which has SiC bushings can be used However a shorter than normal service life can be expected Turn off the power at once and remove the obstruction Should foreign matter enter the pump it may cause pump damage or failure CAUTION 5 5 Minimum Flow Our pump uses the pumped fluid as its cooling and lubricating system A low flow rate may result in increasingly high temperature withinthe 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 Unit l min moa ae Temperate ayc hl goch eoc soc Table 5 1 Note The above data is based on water For volatile or viscous fluids consult your local distributor 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 switchin
6. air Fracturing of the bearing and thrust rings Dry running Produce vibrations and noise Foreign objects stuck in impeller 2 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 1 Rapid wearing of the bearing 2 Reduced pump performance and fluid flow 1 Produce vibrations and noise Damaged motor bearings 2 Overloads the motor 3 High Motor temperature Wear ring worn off 1 Produce vibrations and noise 2 Overloads the motor Wearing of the impeller bearings 1 Produce vibrations and noise 2 May result in fracturing of the impeller shaft Pump s base screws loose Produce vibrations and noise 1 Reduced pump performance 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 Serious cases may result in overheating of the pump and outlet piping Low inlet tank fluid level Low flow over extended period of time Improper Operation Blockage of inlet piping or foot valve Improper Maintenance Blockage of the outlet piping 9 Repair and Warranty When a problem arises please read this instruction manual and try t
7. bearing and thrust rings resulting in cavitation 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 Viscosity higher than anticipated 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 Inlet pipe not submerged sufficiently 1 Produce high frequency vibrations and noise into the fluid or air sucked into 2 Fracturing of the bearing and thrust rings piping system 3 Reduced pump performance 4 Serious cases can lead to dry running _ n 1 Reduced pump performance a ne 2 Serious cases can lead to dry running Improper suction resulting in low efficiency Dand a a austen insufficient flow cavitation or dry running 14 Incorrect System Calculations or Incorrect Pump Selected Improper Piping or AM SERIES Abnormal Condition Possible Effect Damage Fluids within pump leaks during shut down period E leaking took yaive G et Piping resulting in dry running when pump is restarted Starting the pump without priming Dry running causing damage to pump Low speed or wrong rotation Low fluid flow direction Incorrect motor frequency or Overloading of the motor voltage 1 Low performance and vibrations caused by sucked in
8. 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 Inlet Piping 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 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 Priming Piping Control Valve ON om a o mm Q a p be placed at least 3D apart to prevent mutually disrupting each other s flow Foot Valve Please install a foot valve 1f upward suction is used AM SERIES Items to Note Self Priming 1 If suction method is upward suction please install a self priming Cylinder 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 5m above the opening of the pump Control Valve A control valve should be installed to make disassembling of the pump easier The valve should only be shut off when the pump
9. 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 1s 10Q or less Each pump must have a separate grounding wire directly connected to AM SERIES the common ground terminal and must not form a loop between wires 4 Ifthe 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
10. g 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 11 AM SERIES 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 increase If the pressure fails to rise or if the pressure 1s too low shut down the pump and check the piping and wiring NOTE Outlet Pressure Inlet Pressure Pump Pressure Pump Pressure kg em 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 environment relat
11. g 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 Check Valve A check valve should be installed in the following situations Discharge pressure exceeds 2kg cm and flow rate exceeds 3m 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 Control Valve A control valve can be used for controlling the flow of fluids Do Outlet Piping 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 Exhaust Valve A vent should be installed if the horizontal section of the outlet piping is very long AM SERIES 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 WARNING Leaking the liquids may result in personal injury and or explosion fire accidents a Explosive and inflammable liquids b Corrosive and stimulus toxic liquids c Liquids could directly harm the h
12. he least loss when fully opened like a gate valve It is generally not recommended to install a filter in front of a Filter pump 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 ME pressure gauge diaphragm should be used 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 A priming piping must be installed if the suction system does not 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 The ability for each component in the piping system to withstand pressure should be calculated to determine the maximum allowable operating pressure Outlet Piping AM SERIES Items to Note Upward suction pumps that do not have a self priming cylinder should have a priming piping system 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 Pressure Gauge 3 A valve can be installed on the piping that leads to the pressure gauge to faci
13. intenance 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 AM SERIES 3 Inspecting the Pump Prior to Installation 1 2 3 4 5 6 7 Total Head H 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 Although some motor marked usable for both 50Hz and 60Hz but the impeller size of the pump should be trimmed according to frequency applied Apply under inadequate frequency may cause motor overload use
14. ive 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 Maintenance and Inspection 7 1 Daily Inspection See 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 l 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 Table 7 1 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 12 AM SERIES Inspection Item 1 Cracks particle laden fluids 3 Crystallization or sludge 4 Shaft support loose or deformed 1 Scratch marks or cracks 1 Contact distributor 2 Cracked bearing or crystallization 2 Contact distributor and tear 4 Crystallization
15. litate 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 Discharge pressure exceeds 2kg cm and flow rate exceeds 3m sec Check Valve Two or more pumps share the same outlet piping system To prevent back flow water hammer from damaging the pump during unexpected power outages 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 of 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 Eo EN TA E A vent should be installed if the horizontal section of the outlet piping is very long General 1 Suction condition must satisfy NPSHa gt NPSHr 0 5m Requirements 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 onthe 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
16. nsibility for personal danger or property damage resulting from failure to follow the safety instructions contained herein A DANGER WARNING CAUTION The explosion proof grade of AM series is varied according to materials used together with type of motor matched Please follow the order specification sheet or contact ASSOMA s local agent 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 AM 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 ma
17. o 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 15 AM SERIES 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 16 AM SERIES Annex Exploded View and Parts List No Part Name F No Part Name Inlet Flange Impeller F31 Disc Flange RII Rear Casing 17
18. onment protected from possible flooding 4 Install in the place where the ambient temperature is not above 40 C 5 Fastening the pump to base plate or machine with anchor bolt 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 Install or store the pump 1n the following places with special care and consult with ASSOMA INC or authorized dealer in the near region a Places where flammable gas dust or material is used or placed CAUTION b Places where corrosive gas is generated Places where the ambient temperature is extremely higher than 40 C or extremely 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 are shown in the table SUCTION Model Force N Moment N m AM 1007 60 50 50 90 10 15 10 30 AM 30 100 80 80 140 25 40 25 60 AM50 120 100 100 160 25 40 25 60 AM SERIES DERNE O A Model o Foree N M M o E 25 60 E Oy 60 CR Re DSF MD My AM 10_ 50o 6 50 9 10 15 m
19. p 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 addition the operator must wear protector gear such as a safety mask safety goggles and protective gloves 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 2 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 WARNING 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 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 NPSHa too low 2 Fracturing of the
20. u o 1 e ee AM SO_ 100 120 100 160 25 X The values in table are reference ones within 40 C 4 3 Notes for Installing the Piping System 1 Outlet Piping p 2 Throttle Valve 1 3 Priming Piping 4 Priming Valve Lg an a 5 Check Valve an Pat z 6 Outlet Pressure Gauge 4 E 7 Motor Soo F 7 6 8 Pump me Y 9 Inlet Pressure Gauge PE k 10 Inlet Piping ea 11 Inlet Piping Support 9 a 12 Vibration Damper iolls a ae ms 7 13 Filter shes mV A 7 lf il l 0 0 1 02 slope Good 14 Inlet Tank L132 a PX 15 Foot Valve 7 14 EN 4 h u ST iL JO a ve pass Uj Va Fig 4 1 Fig 4 2 Bad Piping Designs i ee p Mt E gt 0 5m J E a Oy A or Be gt 2D D s A 4 y A gt 1 5D F Aw R _ D Diameter gt 1 5D ra a f X P N gt i Fig 4 4 W Fig 4 3 AM SERIES Items to Note Suction condition must satisfy NPSHa gt NPSHr 0 5m 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 Inlet piping and connectors should be installed properly to prevent sucking in
21. uman body or detrimental to health d 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 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 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 Select the proper size of wire for power wiring and tighten screws to prevent loosening Table 4 1 lists the reference value and make sure to follow local electrical regulations Table 4 1 Wire diameter and terminal locking torque Locking torque AM 10 30 50 18 kgf cm 1 Be sure not to performing any type of maintenance while the power turns on It may lead to electric shock 2 Power supply and wire
22. 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 Ve oh 2g 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 WARNING Use 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 AM SERIES 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 envir
23. 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 PVDF 0 90 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 When the pump is used to feed a hot liquid do not touch the front cover or the piping with your bare hands It may cause burns Any reachable hot surfaces including pumps motors and piping must provide isolate device and CAUTION display 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 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 10 AM SERIES 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
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