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TERAL INC. 

Instruction Manual 

Line Pump 

Model: LPE-e 

 Warning 

Do not carry out operation, inspection or maintenance of the pump until you read this manual and 
understand the content. 
Keep this manual carefully at hand so that it can be consulted at anytime when operating, inspecting or 
maintaining the water supply unit. 

For contractors who carry out equipment work: 
Please be sure to deliver this manual to the customer who will operate, inspect or maintain the pump. 

Summary of Contents for LPE-e

Page 1: ...you read this manual and understand the content Keep this manual carefully at hand so that it can be consulted at anytime when operating inspecting or maintaining the water supply unit For contractors...

Page 2: ...the following failures and breakage the costs of the repairs shall be borne by the user 1 Failures and breakage attributable to equipment that was not delivered by Teral Inc 2 Failures and breakage af...

Page 3: ...afety precautions 1 1 1 3 Location of warning labels and caution labels 1 4 2 Configuration and overview of the pump 2 1 2 1 Before using the pump 2 1 2 2 Model type description 2 1 2 3 Part names and...

Page 4: ...tes information that is in particular to be noted or emphasized These graphic symbols indicate existing hazards to beware of 1 2 Safety precautions Danger Once the main power is turned on do not touch...

Page 5: ...ay lead to an injury or damage For overhaul replacement of parts or repairs contact Teral or the service center specified by Teral If unskilled personnel carry out work that requires special knowledge...

Page 6: ...use burns Once you turn off the power wait until the pump stops completely Do not restart the pump until it does Otherwise the main shaft may be subjected to an excessive load which makes the service...

Page 7: ...em with a new one The drawing shows representative model Be sure to check the label put on the actual products When lifting the pump pass through a rope or other lines to the metal fittings 11 22kW ou...

Page 8: ...ntation not upside down Pay special attention to nails especially when opening a wooden crate Otherwise you may get injured Note After the unpacking ask the waste disposal company to dispose of packag...

Page 9: ...ing to pressurize the liquid used Motor Shaft coupling Shaft coupling guard Pump main shaft Shaft seal mechanical seal Air vent plug Drain plug Hanging metal fitting 11 22kW Warning Be sure to put a s...

Page 10: ...osed Shaft seal Mechanical seal Bearing Sealed ball bearing Material Refer to the specifications including the internal structure drawing Motor Type Totally enclosed fan cooled for outdoor type Number...

Page 11: ...3 8 4 5 G 37 1 0 1 9 2 3 3 0 3 8 5 4 150 K 15 22 2 0 2 5 4 0 4 1 6 5 6 8 30 2 0 2 7 4 0 4 6 7 0 10 1 J C 37 45 2 0 2 5 4 0 4 0 7 0 7 9 F C 55 90 1 8 2 8 5 0 5 3 8 0 9 7 200 K 37 45 4 0 4 0 8 0 7 9 11...

Page 12: ...n head suction height suction pipe resistance will comply with the formula specified in the 2 6 Total suction head However the total suction head decreases as the liquid temperature increases In gener...

Page 13: ...t catch the terminal box or the coupling of the motor For the models with 7 5kW and over 30kW motor however a rope is wound like a loop around the casing and passed through the lifting lug to hang it...

Page 14: ...s 3 2 Installation procedure 1 The area and thickness of the foundation concrete must be large enough to withstand the pump weight and the operating load 2 Make foundation holes in advance according t...

Page 15: ...of the pump 4 Do not install any elbow near the suction port or the discharge port of the pump This will reduce the performance and efficiency 5 The suction pipe must be made as short and straight as...

Page 16: ...s Do not attach a sluice valve to the suction pipes Do not install the piping with a shape of upward bend i e providing the piping with a rising gradient and then a descending gradient To prevent air...

Page 17: ...ignite Furthermore since the mechanical seal needs to be replaced periodically install detachable insulation for it Warning Never install heat insulation to the motor section Otherwise the motor may h...

Page 18: ...and an overload protection device on the primary power side of the pump When switching from an IE1 motor equipped product it is necessary to verify the applicability of its ground fault interrupter an...

Page 19: ...ve a motor equipped with a self protecting device When driving a 400V class motor contact your nearest office of Teral In some cases it might be necessary to take measures for inverter surge An invert...

Page 20: ...cover or a filter over the motor The temperature may rise inside the motor thus leading to failures Caution Do not allow a large amount of foreign matter to enter the pump Failure to observe this may...

Page 21: ...ater do not carry out the above procedure with bare hands because hot water may spout out of the air vent cock thus leading to burns Caution Never run the pump dry operation without priming Failure to...

Page 22: ...ause it may cause a failure 2 Turn on the power to start the pump 3 During the initial period of pump operation and circulation gradually open the sluice valve on the discharge side to circulate liqui...

Page 23: ...otation speed min 1 Standard vibration value at the bearing section For reference only Relation between the total amplitude a and the vibration velocity V a 9 Q a Total amplitude m V Vibration velocit...

Page 24: ...s Use bearings into which urea grease is filled Using other type of grease such as lithium grease may shorten the service life f Since mechanical seal is used as the shaft seal high frequency sound me...

Page 25: ...ting pressure and other factors and the service life changes accordingly 3 If there is any water leakage at the mechanical seal replace it During the initial period of running a new pump a small amoun...

Page 26: ...work screw the bolt into the Remove the mechanical seal fastening ring removal tap B and remove the main shaft from the main shaft Remove the seal cover and O ring If it is difficult to work screw th...

Page 27: ...he shaft coupling to the main shaft supplied with the product At this point temporarily fix the shaft coupling Remove the crowbar but do not tighten it Be careful not to pinch your hands 5 6 Uniformly...

Page 28: ...cating grease in bearings Use bearings into which urea grease is filled Using other type of grease such as lithium grease may shorten the service life Bearing type Output kW Bearing Load side Unload s...

Page 29: ...h and uniform 9 Bearing Motor 2 Heat generation noise vibration Touch Listen Visual check No abnormal condition 5 1 9 2 3 years after 15000 hours operation Mechanical seal Leakage Visual check No leak...

Page 30: ...f the pipes to reconsider the specifications The piping is clogged with foreign matter Check and clean the piping The impeller and the liner ring are worn Contact Teral or our servicing companies beca...

Page 31: ...thus leading to imbalanced load A rotating part is in contact with another part The main shaft is winding Abnormal noise from the shaft seal mechanical seal 5 1 The motor is running in open phase con...

Page 32: ...Head Office 230 Moriwake Miyuki cho Fukuyama city Hiroshima 720 0003 Japan Tel 81 84 955 1111 Fax 81 84 955 5777 www teral net 2018 07 TP 534 01...

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