KSB Amarex KRT Installation & Operating Manual

KSB Amarex KRT Installation & Operating Manual

Submersible motor pump

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Submersible Motor Pump
Amarex KRT
Sizes DN 40 to DN 300; 60 Hz
Motor Sizes:
2-pole: 5 2 to 55 2
4-pole: 4 4 to 65 4
6-pole: 4 6 to 50 6
8-pole: 10 8 to 35 8
Installation/Operating
Manual
Mat. No.:
01357410

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Table of Contents
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Summary of Contents for KSB Amarex KRT

  • Page 1 Submersible Motor Pump Amarex KRT Sizes DN 40 to DN 300; 60 Hz Motor Sizes: 2-pole: 5 2 to 55 2 4-pole: 4 4 to 65 4 6-pole: 4 6 to 50 6 8-pole: 10 8 to 35 8 Installation/Operating Manual Mat.
  • Page 2 All rights reserved. Contents provided herein must neither be distributed, copied, reproduced, edited or processed for any other purpose, nor otherwise transmitted, published or made available to a third party without KSB´s express written consent. Subject to technical modification without prior notice. © KSB SE & Co. KGaA, Frankenthal 16.08.2018...
  • Page 3: Table Of Contents

    Scope of supply ..................... 17 Dimensions and weights ................18 Installation at Site ................19 Safety regulations ..................19 Checks to be carried out prior to installation ..........19 Installing the pump set ................. 21 Amarex KRT 3 of 76...
  • Page 4 Related Documents ................58 General assembly drawings ................58 Wiring diagram ..................... 68 Flamepaths on explosion-proof motors ............70 Sectional drawings of the mechanical seal ..........71 Certificate of Decontamination ............73 Index ....................74 Amarex KRT 4 of 76...
  • Page 5: Glossary

    (set) has been properly drained to eliminate any environmental and health hazards arising from components in contact with the fluid handled. Amarex KRT 5 of 76...
  • Page 6: General

    The order number and order item number uniquely identify the pump set and serve as identification for all further business processes. In the event of damage, immediately contact your nearest KSB service center to maintain the right to claim warranty. 1.2 Installation of partly completed machinery To install partly completed machinery supplied by KSB, refer to the sub-sections under Servicing/Maintenance.
  • Page 7: Other Applicable Documents

    ⊳ Safety instructions ⇨ Result of an action ⇨ Cross-references Step-by-step instructions Note Recommendations and important information on how to handle the product If agreed to be included in the scope of supply Amarex KRT 7 of 76...
  • Page 8: Safety

    ▪ Do not operate partially assembled pump sets. ▪ Only use the pump set to handle the fluids described in the data sheet or product literature of the pump variant. ▪ Never operate the pump set without the fluid to be handled. Amarex KRT 8 of 76...
  • Page 9 Open, diagonal single- Suitable for the following fluids: vane impeller Waste water with solid substances and (impeller type D) long fibers Minimum permissible flow rate Maximum permissible flow rate Best efficiency point Amarex KRT 9 of 76...
  • Page 10: Personnel Qualification And Training

    ▪ Provide the personnel with protective equipment and make sure it is used. ▪ Contain leakages (e.g at the shaft seal) of hazardous fluids handled (e.g. explosive, toxic, hot) so as to avoid any danger to persons and the environment. Adhere to all relevant laws. Amarex KRT 10 of 76...
  • Page 11: Safety Information For Maintenance, Inspection And Installation Work

    ▪ Modifications or alteration of the pump set may affect explosion protection and are only permitted after consultation with the manufacturer. ▪ Only original spare parts and accessories authorized by the manufacturer must be used for explosion-proof pumps. Amarex KRT 11 of 76...
  • Page 12: Transport/Temporary Storage/Disposal

    ▷ Never suspend the pump set by its power cable. ▷ Never use the chains or lifting ropes included in KSB's scope of supply for lifting loads other than the KSB product supplied. ▷ Securely attach the lifting ropes or chains to the pump and crane.
  • Page 13: Storage/Preservation

    1. Spray-coat the inside wall of the pump casing, and in particular the impeller clearance areas, with a preservative. 2. Spray the preservative through the suction and discharge nozzles. It is advisable to then close the pump nozzles (e.g. with plastic caps or similar). Amarex KRT 13 of 76...
  • Page 14: Return To Supplier

    4. Always complete and enclose a certificate of decontamination when returning the pump (set). Always indicate any safety and decontamination measures taken. (⇨ Section 10 Page 73) NOTE If required, a blank certificate of decontamination can be downloaded from the KSB web site at: www.ksb.com/certificate_of_decontamination 3.5 Disposal WARNING...
  • Page 15: Description Of The Pump (Set)

    ZN 3826 - M 36 Mat. No: 1232058 ZN 3826 - M 31 Fig. 2: Name plate (example) a) Standard pump set b) Explosion-proof pump set Designation KSB order number Flow rate Maximum fluid and ambient temperature Enclosure Motor type...
  • Page 16: Design Details

    ▪ Transportable model for wet installation (installation type P) The pump set is designed for continuously submerged operation. The motor is cooled by the fluid handled on the motor surface. Operation with the motor outside the fluid handled is possible for short periods. Amarex KRT 16 of 76...
  • Page 17: Configuration And Function

    Depending on the model, the following items are included in the scope of supply: Stationary wet installation (installation type S) ▪ Pump set complete with power cables ▪ Claw with sealing material and mounting elements ▪ Lifting rope or chain ▪ Mounting bracket with mounting elements Amarex KRT 17 of 76...
  • Page 18: Dimensions And Weights

    ▪ Lifting rope or chain NOTE A separate name plate is included in KSB's scope of supply. This name plate must be attached in a clearly visible position outside the place of installation, e.g. at the control panel, pipeline or mounting bracket.
  • Page 19: Installation At Site

    1. Check the structural requirements. All structural work required must have been prepared in accordance with the dimensions stated in the outline drawing/general arrangement drawing. Amarex KRT 19 of 76...
  • Page 20 ▷ Never insert your hands or any other objects into the pump. ▷ Check that the inside of the pump is free from any foreign objects. ▷ Take suitable precautions (e.g. wear safety goggles, etc). Amarex KRT 20 of 76...
  • Page 21: Installing The Pump Set

    Always refer to and comply with the general arrangement drawing/outline drawing when installing the pump set. 5.3.1 Stationary wet installation 5.3.1.1 Fastening the duckfoot bend Depending on the pump size, the duckfoot bend is either fastened with chemical anchors and/or foundation rails. Amarex KRT 21 of 76...
  • Page 22 ▷ Take appropriate measures to compensate thermal expansion of the piping. NOTE When the pump set is used for draining low-level building areas, fit a swing check valve into the discharge line to avoid backflow from the sewer system. Mounting accessories of respective manufacturer required Amarex KRT 22 of 76...
  • Page 23 NOTE Should site conditions/piping layout, etc., require the wire to run off the vertical, do not exceed a maximum angle of 5° to ensure reliable fitting and guiding of the pump set. Amarex KRT 23 of 76...
  • Page 24 NOTE The guide rails are not included in KSB's scope of supply. Select guide rail materials which are suitable for the fluid handled or as specified by the operator.
  • Page 25 For installation depths greater than 19.7 ft [6 m], the scope of supply may include brackets as a middle support for the guide rails. The mounting brackets also serve as spacers between the two guide rails. To DIN 2440/2442/2462 or equivalent standards Amarex KRT 25 of 76...
  • Page 26 Transportable model for wet installation Attach the lifting chain or rope to the lug/eyebolt/bail on the pump set on the discharge nozzle side. Attaching the lifting chain/rope - transportable model for wet installation Amarex KRT 26 of 76...
  • Page 27 5.3.2 Transportable model for wet installation Fitting the foot plate or pump stool Fit the foot plate or pump stool before installing the pump. Tighten the screws/bolts as specified, see table “Tightening torques”. (⇨ Section 7.6 Page 55) Amarex KRT 27 of 76...
  • Page 28: Electrical System

    1. Protect the pump set against overloading by a thermal time-lag overload protection device in accordance with IEC 947 and local regulations. 2. Set the overload protection device to the rated current specified on the name plate. (⇨ Section 4.3 Page 15) Amarex KRT 28 of 76...
  • Page 29 No modifications are required on the power/control cable of the submersible motor pump. Suitable analyzing devices must be selected. This applies in particular to the leakage sensor inside the motor. Amarex KRT 29 of 76...
  • Page 30 Automatic re-starting is permissible. For explosion-proof pump sets, the three additional, series-connected (PTC) thermistors with terminals 10 and 11 must be used in conjunction with a thermistor tripping unit with manual reset. Amarex KRT 30 of 76...
  • Page 31 PT100 input and 2 separate outputs for two different switching points (sensor circuit maximum 6 V/2 mA). Set the following limits: ▪ Alert at 230 °F [110 ℃] ▪ Cut-out of the pump set at 266 °F [130 ℃] Amarex KRT 31 of 76...
  • Page 32 DANGER Connection of damaged power cables Danger of death from electric shock! ▷ Check the power cables for damage before connecting them to the power supply. ▷ Never connect damaged power cables. Amarex KRT 32 of 76...
  • Page 33 ▷ Explosion-proof pump sets installed in a tank must never be retrofitted with an external potential equalization connection! DANGER Touching the pump set during operation Electric shock! ▷ Make sure that the pump set cannot be touched during operation. Amarex KRT 33 of 76...
  • Page 34: Commissioning/Start-Up/Shutdown

    Increased vibrations! Damage to mechanical seals and bearings! ▷ Never start up the pump set against a closed shut-off element. 1. Fully open the discharge line shut-off element, if any. 2. Start up the pump set. Amarex KRT 34 of 76...
  • Page 35: Operating Limits

    Operation outside the permitted frequency range Explosion hazard! ▷ Never operate an explosion-proof pump set outside the specified range. Frequency inverter operation of the pump set is permitted in the frequency range from 25 to 60 Hz. Amarex KRT 35 of 76...
  • Page 36 The fluid level must not drop below the specified minimum (dimension B). Exact dimensions see general arrangement drawing/outline drawing. Fig. 19: Minimum fluid level Amarex KRT 36 of 76...
  • Page 37: Shutdown/Storage/Preservation

    ✓ Make sure sufficient fluid is available for the operation check run of the pump set. 1. For prolonged shutdown periods, start up the pump set regularly between once a month and once every three months for approximately one minute. Amarex KRT 37 of 76...
  • Page 38: Returning To Service

    Risk of personal injury from moving parts or escaping fluid! ▷ As soon as the work is completed, re-install and/or re-activate any safety- relevant and protective devices. NOTE On pumps/pump sets older than 5 years we recommend replacing all elastomer seals. Amarex KRT 38 of 76...
  • Page 39: Servicing/Maintenance

    (set) with a minimum of maintenance expenditure and work. NOTE All maintenance, service and installation work can be carried out by KSB Service or an authorized workshop. Find your contact in the attached "Addresses" booklet or on the Internet at www.ksb.com/contact".
  • Page 40: Servicing/Inspection

    7 Servicing/Maintenance 7.2 Servicing/inspection KSB recommends the following schedule for pump set maintenance: Table 14: Overview of maintenance work Maintenance interval Maintenance work For details see ... Measure the insulation resistance (⇨ Section 7.2.1.3 Page 40) Every 4000 operating hours Check the power cables (⇨...
  • Page 41 If the readings suggest an open switch, check for mechanical seal leakage. Bearing temperature Table 18: Resistance measurement of the bearing temperature sensors sensor Measurement between terminals ... Resistance 100 Ω - 120 Ω 15 and 16 Amarex KRT 41 of 76...
  • Page 42 ▪ Merkur WOP 40 PB, made by SASOL Recommended lubricants: ▪ Merkur white oil Pharma 40, made by DEA ▪ Thin-bodied paraffin oil No. 7174, made by Merck ▪ Equivalent brands of medical quality, non-toxic ▪ Water-glycol mixture Amarex KRT 42 of 76...
  • Page 43 Excess pressure in the lubricant reservoir Liquid spurting out when the lubricant reservoir is opened at operating temperature! ▷ Open the screw plug of the lubricant reservoir very carefully. Draining the lubricant 1. Position the pump set as shown. Amarex KRT 43 of 76...
  • Page 44 Pump sets with reinforced An encapsulated water-tight lubricating nipple allows re-lubrication of the angular bearings contact ball bearings without opening the pump. DANGER Dry running Explosion hazard! ▷ Re-lubricate explosion-proof pump sets outside potentially explosive atmospheres. Amarex KRT 44 of 76...
  • Page 45: Drainage/Cleaning

    7.4 Dismantling the pump set 7.4.1 General information/Safety regulations WARNING Unqualified personnel performing work on the pump (set) Risk of personal injury! ▷ Always have repair and servicing work performed by specially trained, qualified personnel. Amarex KRT 45 of 76...
  • Page 46 3. Drain the leakage chamber and leave it open for the duration of the disassembly. 7.4.3 Dismantling the pump section Dismantle the pump section in accordance with the relevant general assembly drawing. (⇨ Section 9.1 Page 58) Amarex KRT 46 of 76...
  • Page 47 80-251 F, K ADS 2 80-316 100-315 E, F, K 150-315 E, F, K 200-315 200-316 100-251 ADS 3 150-251 80-315 ADS 4 100-315 100-316 150-315 200-315 80-315 D - reinforced ADS 5 bearings 100-315 Amarex KRT 47 of 76...
  • Page 48 7.4.3.3.2 Removing the drive-end mechanical seal ✓ The back pull-out unit and the impeller have been removed as described above. 1. Remove locking ring 515 or circlip 932.03. 2. Pull the rotating assembly of mechanical seal 433.01 off shaft 210. Amarex KRT 48 of 76...
  • Page 49: Reassembling The Pump Set

    Always reassemble the pump set in accordance with the corresponding general assembly drawing. ▪ O-rings Sealing elements – Check O-rings for any damage and replace by new O-rings, if required. – Never use O-rings that have been glued together from material sold by the yard. Amarex KRT 49 of 76...
  • Page 50 Fig. 27: Installation 200-400, 200-401, 250-400/-401, dimension "A" 300-400/-401 7.5.2.2 Fitting the impeller NOTE For bearing brackets with tapered fit make sure that the tapered fit of impeller and shaft is undamaged and installed free from grease. Amarex KRT 50 of 76...
  • Page 51 1. Screw part 2 of the special impeller fitting and removal tool into the shaft end of the pump set. 2. Screw part 1 to the threaded bolt part 2. Fig. 29: Special impeller fitting and removal tool Amarex KRT 51 of 76...
  • Page 52 1. Use a rubber mallet to push casing wear ring 502 into pump casing 101 as far as it will go. 2. Insert the complete back pull-out unit into the pump casing. Amarex KRT 52 of 76...
  • Page 53 ✓ The shaft, rolling element bearings, mechanical seal and impeller have been assembled properly. 914.12 412.34 914.24 412.33 Fig. 33: Fitting the wear plate 1. Equip wear plate 135 with two new O-rings 412.33 and 412.34. 2. Insert wear plate 135 into pump casing 101. Amarex KRT 53 of 76...
  • Page 54 Before reassembling the motor section, check that all joints relevant to explosion protection (flamepaths) are undamaged. Any components with damaged flamepaths must be replaced. Only use original spare parts made by KSB for explosion-proof pumps. Observe the flamepath positions specified in the Annex. Secure all screwed connections closing off the flameproof enclosure with a thread-locking agent (Loctite type 243).
  • Page 55: Tightening Torques

    7.7.1 Ordering spare parts Always quote the following data when ordering replacement or spare parts: ▪ Pump type ▪ KSB order number ▪ Motor number Refer to the name plate for all data. (⇨ Section 4.3 Page 15) Also supply the following data: ▪...
  • Page 56 Rolling element bearing, 50 % motor-end 320 / 321.02 Rolling element bearing, 50 % pump-end 99-9 Set of sealing elements 100 % for the motor 99-9 Set of sealing elements 100 % for the hydraulic system Amarex KRT 56 of 76...
  • Page 57: Trouble-Shooting

    Check the electrical installation. voltage. Contact the energy supplier. ✘ ✘ Motor winding or power cable defective. Replace with original KSB parts or contact KSB. ✘ ✘ Defective rolling element bearing(s) Contact KSB. ✘ ✘ In case of star-delta configuration: motor Check star-delta contactor.
  • Page 58: Related Documents

    19 4, 21 4, 23 4, 29 4, 4 6, 6 6, 9 6, 12 6, 15 6, 19 6 General assembly drawing of pump set with motor type DKN 132/160/161/181 and tapered fit (impeller type F) Amarex KRT 58 of 76...
  • Page 59 15 6, 19 6 Upper bearing assembly Motor sizes 12 2, 17 2, 23 2, 11 4, 16 4, 23 4, 29 4, 9 6, 12 6 Impeller type D 550.23 914.10 412.33 412.34 914.12 914.24 Amarex KRT 59 of 76...
  • Page 60 Shaft seal housing 81-17 Wire connector 500.02 Ring 81-44.28 Clamping piece Casing wear ring 81-51 Shim Impeller wear ring 81-59 Stator Bearing sleeve 99-17 Dessicant 550.11/.23/.24 Disc Pump casing 561.01 Grooved pin Intermediate casing Motor housing Amarex KRT 60 of 76...
  • Page 61 300-400/401 Motor sizes 23 4, 29 4 20 6, 26 6 10 8, 17 8, 21 8 General assembly drawing of pump set with motor type DKN 161/181 and cylindrical interference fit (impeller types K/E) Amarex KRT 61 of 76...
  • Page 62 Impeller 903.03/.05 Screw plug 321.02 Radial ball bearing 914.02/.10/.04/.26 Hexagon socket head cap screw Radial roller bearing 920.01/.26 Bearing bracket 930.28 Safety device 411.03/.05 Joint ring 932.01/.02/.22 Circlip 412.02/.03/.04/.07/.15 O-ring 421.01 Lip seal 970.03/.04 Plate Amarex KRT 62 of 76...
  • Page 63 200-400/401 250-400/401 300-400/401 Motor sizes 35 4, 50 4, 65 4 32 6, 40 6, 50 6 26 8, 35 8 General assembly drawing of pump set with motor type DKN 226 (impeller types K/E) Amarex KRT 63 of 76...
  • Page 64 Impeller hub cap 903.03/.05 Screw plug Radial roller bearing 914.01/.02/.04/.05/.10 Hexagon socket head cap screw 330.01/.02 Bearing bracket 920.01 321.02 Radial ball bearing 932.01/.02/.03/.20/.22 Circlip 411.03/.05 Joint ring 412.01/.02/.03/ O-ring 970.03/.04 Plate .04/.07/.08/.15 421.01 Lip seal Amarex KRT 64 of 76...
  • Page 65 D 200-400 D 250-400 D 300-400 Motor sizes 32 6, 40 6, 50 6 26 8, 35 8 General assembly drawing of pump set with motor type DKN 226, 4-, 6-, 8-pole (impeller type D) Amarex KRT 65 of 76...
  • Page 66 9 Related Documents Table 31: Detailed views of general assembly drawing of pump set with motor type DKN 226, 4-, 6-, 8-pole Detailed view Cable gland Bearing temperature sensor Lubricant/leakage chamber Amarex KRT 66 of 76...
  • Page 67 Rolling element bearing 902.01 Stud Radial roller bearing 903.03/.04/.05/.46 Screw plug 330.01/.02 Bearing bracket 914.01/.02/.03/.04/.05/.10/.12/.24 Hexagon socket head cap screw Bearing cover 920.01 411.03/.04/.05/.26/.46 Joint ring 932.01/.02/.03/.20 Circlip 412.01/.02/.03/.04/.07/ O-ring 970.02 Plate .08/.15/.24/.33/.34 421.01/.02/.03 Lip seal Amarex KRT 67 of 76...
  • Page 68: Wiring Diagram

    4 6, 6 6, 9 6, 15 6, 19 6, 26 6, 10 8, 17 8, 21 8 Ⓐ = Motor temperature (PTC) Ⓔ = Motor temperature Ⓕ = Leakage inside the motor * = Shielded cable (optional) Amarex KRT 68 of 76...
  • Page 69 32 6, 40 6, 50 6, 26 8, 35 8 Ⓐ = Motor temperature (PTC) Ⓑ = Mechanical seal leakage Ⓐ = Motor temperature Ⓕ = Leakage inside the motor * = Shielded cable (optional) Only for reinforced bearings Amarex KRT 69 of 76...
  • Page 70: Flamepaths On Explosion-Proof Motors

    15 6, 19 6, 20 6, 26 6, 1,2, 3 Flamepaths 37 2, 55 2 35 4, 50 4, 65 4 32 6, 40 6, 50 6 26 8, 35 8 1,2, 3, 4, 5 Flamepaths Amarex KRT 70 of 76...
  • Page 71: Sectional Drawings Of The Mechanical Seal

    4 4, 5 4, 7 4, 11 4, 16 4, OW 309131-00 19 4, 21 4, 23 4, 29 4 433.02 Mechanical seal (mechanical 4 6, 6 6, 9 6, 12 6, 15 6, seal with covered springs - 19 6 433.02 OW 309131-05 Amarex KRT 71 of 76...
  • Page 72 23 4, 29 4, 35 4, 50 4, 65 4 20 6, 26 6, 32 6, 40 6, 50 6 932.03 10 8, 17 8, 21 8, 26 8, 35 8 433.02 550.44 433.02 Mechanical seal (mechanical seal with covered springs - 433.02 Amarex KRT 72 of 76...
  • Page 73: Certificate Of Decontamination

    We confirm that the above data and information are correct and complete and that dispatch is effected in accordance with the relevant legal provisions....................................Place, date and signature Address Company stamp Required fields Amarex KRT 73 of 76...
  • Page 74: Index

    Supply voltage 35 Installation Transportable model 27 Insulation resistance test 40 Intended use 8 Tightening torques 55 Interference immunity 29 Trouble-shooting 57 Leakage monitoring 31 Wiring diagrams 68 Level control 29 Lubricant Intervals 40 Quantity 43 Amarex KRT 74 of 76...
  • Page 76 KSB SE & Co. KGaA 67225 Frankenthal • Johann-Klein-Str. 9 • 67227 Frankenthal (Germany) Tel. +49 6233 86-0 • Fax +49 6233 86-3401 www.ksb.com...

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