Desmi NSL 80-215 Operation And Maintenance Instruction
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Desmi NSL 80-215 Operation And Maintenance Instruction

Vertical in-line centrifugal pump monobloc & spacer
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DESMI Vertical In-Line Centrifugal Pump
OPERATION AND MAINTENANCE INSTRUCTIONS
Tagholm l, DK-9400 Nørresundby, Denmark
Manual:
T1542
Special pump Number. ...............................................
NSL MONOBLOC & SPACER
DESMI Pumping Technology A/S
Tel.: +45 96 32 81 11
Fax: +45 98 17 54 99
E-mail:
Internet:
Language:
English
desmi@desmi.com
www.desmi.com
Revision:
A.1
Original instructions

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Do you have a question about the NSL 80-215 and is the answer not in the manual?

Questions and answers

Kaisar
May 10, 2025

What parameters can be used to determine the pump type if the instructions and manufacturer's plate are lost?

0
1 comments:
Mr. Anderson
May 20, 2025

If the instructions and manufacturer's plate are lost, the pump type for a Desmi NSL 80-215 can be determined using parameters such as:

- Flow rate
- Power requirements
- Pump component specifications
- Installation setup and alignment
- Mechanical seal type
- Drive configuration

These parameters can be compared with those listed in the manual or parts list for correct identification.

This answer is automatically generated

0
Leverkusen express
May 30, 2025

could you please advice Mechanical seal type (item 10) and its dimensions

-1

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Summary of Contents for Desmi NSL 80-215

  • Page 1 Original instructions DESMI Vertical In-Line Centrifugal Pump OPERATION AND MAINTENANCE INSTRUCTIONS NSL MONOBLOC & SPACER DESMI Pumping Technology A/S Tagholm l, DK-9400 Nørresundby, Denmark Tel.: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com Internet: www.desmi.com...

  • Page 3: Table Of Contents

    Technical data ..........................24 4.2.1. Maximum work pressure ......................24 4.2.2. Noise emission ........................25 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 4 INSPECTION AND SERVICE PLAN ................66 8.1. Supervision of operation ......................... 66 8.2. Inspection work ..........................73 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...
  • Page 5 11.5. Assembly drawing NSL-215/265 -S12 combination ..............119 11.6. Spare parts list NSL-215/265 -S12 combination ................. 120 11.7. Assembly drawing NSL-330/415/465 -02 combination ............... 121 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 6 11.31. Assembly drawing NSL350-525 -14 combination ............... 145 11.32. Spare parts list NSL350-525 -14 combination ................146 APPENDIX A ........................... 147 APPENDIX B ........................... 149 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 7: General Description

    But the original manual still applies to the past or in-use products. Desmi reserves the right to make any type of update, without prior notice and obligation to update previous manuals. The latest version of the manual is acquirable by scanning the QR code in the front page of this manual.

  • Page 8: General

    If required, the operator can commission the manufacturer / supplier to train the personnel. Training on the pump (set) must always be supervised by technical specialist personnel. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf.

  • Page 9: Eu & Uk Declaration Of Conformity

    GENERAL DESCRIPTION 1.3. EU & UK declaration of conformity DESMI PUMPING TECHNOLOGY A/S, hereby declare that our pumps of NSL Monobloc & Spacer type are manufactured in conformity with the following essential safety and health requirements in the COUNCIL DIRECTIVE 2006/42/EC on machines, Annex 1.

  • Page 10: Atex Declaration Of Conformity

    The precautions to be taken using the pumps in areas where the ATEX rules for “Ex II 2G Ex h IIb T4 Gb X” marked equipment apply. Only pumps mounted with EX-marked nameplate from DESMI are approved for / allowed to be used in EX areas.

  • Page 11: Information Relevant For Disassembly Or Disposal At End-Of-Life

    1.5. Information relevant for disassembly or disposal at end-of-life No harmful materials are used in DESMI pumps – please refer to DESMI Green Passport (can be sent on request – contact a DESMI sales office) – i.e. common recycling companies can handle the disposal at end-of-life.

  • Page 12: Safety

    EC Directive 2014/34/EU (ATEX). Machine damage In conjunction with the signal word CAUTION, this symbol indicates a hazard for the machine and its functions. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 13: Labels On The Product

    SAFETY 2.1.3. Labels on the product The diagrams below indicate the location of the machine's safety and information labels. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99...

  • Page 14: Intended Use

    Never exceed the permissible operating limits (pressure, temperature, etc.) specified in the product literature. • Observe all safety information and instructions in this manual. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 15: Consequences And Risks Caused By Non-Compliance With This Manual

    • If shutting down the pump does not increase potential risk, fit an emergency stop control device in the immediate vicinity of the pump (set) during pump set installation. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 16: Safety Information For Maintenance, Inspection And Installation

    Never operate the pump set outside the limits stated in the data sheet and on the name plate. Prevent impermissible modes of operation at all times. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf.

  • Page 17: Marking

    SAFETY 2.8.1. Marking The marking on the pump refers to the pump part only. DESMI’s standard EX marking for NSL pumps is: Ex II 2G Ex h IIb T4 Gb X. The motor has its own marking. The marking is maintained on the condition that the temperatures the pump causes to develop at the motor flange and motor shaft are permitted by the motor manufacturer.

  • Page 18: Frost Protection

    Pumps which are not in operation during frost periods are to be drained to avoid frost damage. Remove the plug (3) at the bottom to empty the pump. Alternatively, it is possible to use anti- freeze liquids in normal pump configurations. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf.

  • Page 19: Transportation, Preventation And Temporary Storage

    1. On transfer of goods, check each packaging unit for damage. 2. In the event of in-transit damage, assess the exact damage, document it and notify DESMI or the supplying dealer (as applicable) and the insurer about the damage in writing immediately.
  • Page 20 TRANSPORTATION, PREVENTATION AND TEMPORARY STORAGE Figure 3-1: Transport NOTE: The lifting straps must not bear against sharp edges and corners. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 21: Storage/Preservation

    Store the pump (set) in a dry, protected room where the atmospheric humidity is as constant as possible. Rotate the shaft by hand once a month. For storing a pump (set) that was operated, the shutdown measures must be adhered to. See also: DESMI Pump Storage and Preservation at: www.desmi.com/media/vqkjqh54/t1534uk.pdf 3.4. Return to supplier 1.

  • Page 22: Disposal

    - Rubber - Electronic waste - Greases and other lubricants 3. Dispose of materials in accordance with local regulations or in another controlled manner. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 23: Technical Specification

    C when without ball bearing mounted on pump shaft. For pumping of clean fresh water with  temperatures above 100 C, DESMI only delivers ductile iron (for instance GGG40) or martensitic stainless steel (for instance 1.4436) for pump casing and rear cover.) Ambient temperature range for: Lower limit temperature: - 20 °...
  • Page 24 TECHNICAL SPECIFICATION Imposed vibration: During DESMI factory testing the accumulated vibration on pump shall be less than 2.8mm/s. Adding any external excited vibrations on site the pump vibrations to be less than 7 mm/s otherwise anti-vibration foundation or other vibration reduction measure on pump to be applied.
  • Page 25 2500 1160 NSL125-330 NSL125-415 NSL150-215 NSL150-265 1500 1900 1700 2950 1000 1400 NSL150-330 NSL150-415 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 26: Technical Data

    NSL200-265 NSL80-330 NSL200-330 NSL100-215 NSL200-415 NSL100-265 14,5 14,5 NSL200-525 NSL100-330 NSL250-265 NSL100-415 12,5 NSL250-330 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 27: Noise Emission

    + 2dB(A). The noise level is for pumps with electric motors. The motor noise in rated work condition is given in motor operation manual. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf.

  • Page 28: Generated Vibration

    13 or 14 combination ≤280 ø215 15 combination ≤280 ø265 02 combination ≤200 ø265 12 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 29: Name Plate

    M: The material combination of the pump. R: The assembly combination of the pump. Z: Other variants M may be the following: DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99...
  • Page 30 D, S are primarily used for seawater. If the pumps are designed for special purposes, the following is to be indicated: 1. Pump No. 2. Pump type DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 31: Explanation Of The Type Number And Pump Number

    If test is performed, ISO9906 Grade 2B is applied as DESMI standard, or other test standard on mutual agreement. IMP is impeller’s real diameter after trimming to obtain rated flow and total head. IMP is a necessary pump specification in spare parts ordering.

  • Page 32: Dimensional Drawing

    Manometer: 1/4" BSP. Drain: 3/8" BSP. Priming: 1/2” BSP Type NSL80-215 NSL80-265 NSL100-215 NSL100-265 NSL125-215 NSL125-265 NSL150-215 NSL150-265 NSL200-265 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 33: Nsl-215/265 -12 Combination

    Manometer: 1/4" BSP. Drain: 3/8" BSP. Priming: 1/2” BSP Type NSL80-215 NSL80-265 NSL100-215 NSL100-265 NSL125-215 NSL125-265 NSL150-215 NSL150-265 NSL200-265 NSL250-265 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 34: Nsl-215/265 -13/14 Combinations

    Manometer:1/4"BSP. Drain:3/8"BSP. Priming:1/2”BSP Type NSL80-215 NSL80-265 NSL100-215 NSL100-265 NSL125-215 NSL125-265 NSL150-215 NSL150-265 NSL200-265 1008 NSL250-265 1035 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 35: Nsl-330/415/418/465/525 -02 Combination

    A-exe. D-exe. D-exe. NSL80-330 NSL100-330 NSL100-415 NSL125-330 NSL125-415 NSL150-330 NSL150-415 NSL200-330 NSL200-415 NSL200-525 1050 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 36 NSL125-415 NSL150-330 NSL150-415 NSL200-330 NSL200-415 NSL200-525 NSL250-330 NSL250-415 NSL250-525 NSL300-415 NSL300-418 NSL300-465 NSL300-525 NSL350-525 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 37: Nsl-330/415/418/465/525 -12 Combination

    NSL80-330 NSL100-330 NSL100-415 NSL125-330 NSL125-415 NSL150-330 NSL150-415 NSL200-330 NSL200-415 NSL200-525 NSL250-330 1000 NSL250-415 1000 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 38 NSL125-415 NSL150-330 NSL150-415 NSL200-330 NSL200-415 NSL200-525 NSL250-330 NSL250-415 NSL250-525 NSL300-415 NSL300-418 NSL300-465 NSL300-525 NSL350-525 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 39: Nsl-330/415/418/465/525 -13/14 Combinations

    NSL150-415 1191 NSL200-330 1183 NSL200-415 1241 NSL200-525 1515 NSL250-330 1230 1000 NSL250-415 1283 1000 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 40 NSL125-415 NSL150-330 NSL150-415 NSL200-330 NSL200-415 NSL200-525 NSL250-330 NSL250-415 NSL250-525 NSL300-415 NSL300-418 NSL300-465 NSL300-525 NSL350-525 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 41: Pump Weight

    NSL300-418 927/735/807/685 NSL150-215 167/191/141/---- NSL300-465 1145/1065/825/745 NSL150-265 172/197/146/---- NSL300-525 870/1005/800/935 NSL150-330 339/329/289/279 NSL350-525 1408/1285/1270/1230 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 42 NSL150-215 ----/227/ ----/251 NSL300-465 ----/1370/----/1050 NSL150-265 232/232/257/257 NSL300-525 ----/1000/----/1135 NSL150-330 ----/389 /----/379 NSL350-525 ----/1608/----/1570 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 43: Installation

    Wiring work requires professional knowledge. Only authorised skilled person can do the work. Always obey the valid rules and regulations. For final design and installation of pumps supplied by DESMI, use DS information DS/CEN/TR 13930 (recommendations for installing pipe systems) and 13932 (recommendations for installing pumps) as guidelines.
  • Page 44 Gentle curves or Y-pieces to ensure optimum flow before (and after) the pump are best. Use shims between pump base plate and foundation to avoid tension in the pump foot when the installation is secured. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf.
  • Page 45 • For Marine & Offshore installation, foundation should be made from proper steel plate or profile steel with enough stiffness to support pump to run stably and reduce potential vibrations. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf.
  • Page 46 • Install a filter into the suction pipe. • Install a differential pressure gauge to monitor impurity. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...
  • Page 47 (incl. shaft seal and pump bearings) significantly. Allowable vibration levels on the pumps As standard, DESMI centrifugal pumps with electric motor generate less than 2.8 mm/s vibration velocity (measured in 3 directions at motor flange level on vertical pumps) during a factory test.
  • Page 48 If the motor weighs more than say two times the pump (often the case for e.g. small vertical DESMI NSL pumps with 2-pole motor running say 2980 or 3570 rpm) it is normally better to mount the lateral supports at the motor’s lifting eye bolt holes (i.e.
  • Page 49 Hf = Pipeline loss at the inlet (m) Hv = Vapor pressure for actual liquid (m) Hs = Safety margin, at least 0.5 meter recommended Figure 5-4: Suction up height DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 50 Insulation Figure 5-5: Service areas Pumps supplied by DESMI can not generally be insulated for heat except at the top of the pump housing - i.e. up to the base flange on the motor bracket as shown below. No holes or screen openings on the motor bracket can be covered by insulation.
  • Page 51 Figure 5-7: Ventilation NOTE: If the admissible temperature are exceeded, additional measures must be taken. Maintenance intervals and maintenance measures may have to be adjusted accordingly. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 52: Commissioning, Start-Up And Shutdown

    If re-greasable then motor bearings to be greased acc. to motor manual before starting the pump ! Any pump bearing(s) are fully greased from DESMI factory = do not re-grease any pump bearing(s) before scheduled running hours in re-grease table in Section 8 are obtained).
  • Page 53 As soon as the centrifugal pump builds up the necessary discharge pressure, the priming system is switched off via the pressure switch. DESMI priming unit has two types:priming pump and priming air ejector. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby –...
  • Page 54 Figure 6-1: Priming pump B114N Figure 6-2: Priming air ejector Please see manual for more details. http://www.desmi.com/media/fo2dilig/t1488uk.pdf http://www.desmi.com/media/dtojxa0h/t1521uk.pdf DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 55: Start Up

    For safety reasons the pump is only allowed to operate against closed discharge valve for a short time (max. 5 minutes and at a max. temperature of 80 ° C for standard pumps). Otherwise there is DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby –...

  • Page 56: Start-Up Procedure

    The pump, suction line and inlet tank, if any, are vented and primed with the fluid to be pumped. • The lines for priming and venting are closed. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 57: Checking The Shaft Seal

    NOTE: If the discharge line is equipped with a check valve, the shut-off element in the discharge line may remain open, provided the site’s requirements and regulations are taken into account and observed. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf.

  • Page 58: Operating Limits

    Do not use the pump to handle unauthorized fluids. Do not operate the pump against a closed shut-off element for long periods Without getting written approval from DESMI, do not operate the pump in incorrect condition (for example, temperature, pressures or speeds exceeding those specified in the order documentation or on the name plate).

  • Page 59: Frequency Of Starts

    6.8.1. Flow rate Recommend operate pump at 70 to 120% of BEP flow for hihg efficiency, operation outside the range reduce the pump life (incl. shaft seal and pump bearings) significantly. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf.

  • Page 60: Density Of Fluid Handled

    2. Spray the preservative through the suction and discharge nozzles. It is recommended to close the pump nozzles (e.g. with plastic caps or similar). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 61: Return To Service

    Immediately after the work is complete, re-install and/or re-activate all safety-relevant and protective devices. NOTE: If the pump has been out of service for more than one year, replace all elastomer seals. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf.

  • Page 62: Troubleshooting

    Find the leakage, repair the fault, 5. Pump takes air non-return valve not submerged Check data sheet Q/H curve and 6. Suction lift is too high NPSH or contact DESMI 7. Pump and piping system As 5 wrongly dimensioned Insert orifice plate or check valve 1.

  • Page 63: Mechanical Seal Failure Analysis

    NPSHa at all damage times 2. Wear on impeller/seal ring, and possible leaking mec. seal DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 64 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 65 2. Difference in spec. might require a different mechanical seal / pump materials DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 66 3.1 or 3.2. 2. Specific classification requirement testing to exclude possibility of production faults DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 67 - We always recommend having spare mechanical seal (spare part kit) onboard the vessel at all time to avoid standstill of pumps in case of seal failure. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf.

  • Page 68: Inspection And Service Plan

    Excessive temperature as a result of bearings running hot or defective bearing seals will cause damage to the pump, death or serious injury. Regularly check the lubricant level. Regularly check the rolling-element bearings for running noises. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...
  • Page 69 • Monitor the correct functioning of any auxiliary connections. • Monitor the stand-by pump. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99...
  • Page 70 Figure 8-1: Drain hole for shaft seal DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf.
  • Page 71 Replace Spacer coupling elastomer(s) Note: Operation outside 70 to 120 % of BEP flow reduce the pump life (incl. shaft seal and pump bearings) significantly. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 72 NSL100-415 NSL125-415 NSL150-330 NSL200-330 Heavy bearing 4500 hours 40 g housing NSL250-330 NSL150-415 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 73 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99...
  • Page 74 NSL150-415 NSL200-415 NSL250-415 Heavy bearing 4500 hours 50 g 25 g housing NSL300-415 NSL300-418 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 75: Inspection Work

    If the pump liquid temperature is above 80 ° C, high-temperature grease is recommended, e.g. SKF LGHP2. DESMI use SKF LGHP2 as standard. Vibration levels higher than 7 mm/s at pump bearing are considered damaging and will normally result in significantly shorter grease and/or bearing life – especially for pumps not running. Hence shorter re-greasing intervals might be required for pumps installed where external excited vibration levels can be higher than 7 mm/s.

  • Page 76: Cleaning Filter

    3. Always flush and clean the pump before transporting it to the workshop. 4. Provide a certificate of decontamination for the pump. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 77: Dismantling The Pump Set

    For any work on the motor, observe the instructions of the relevant motor manufacturer. For dismantling and reassembly observe the exploded views and the general assembly drawing. In case of damage you can always contact our service staff. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf.
  • Page 78 2. Depending on the pump/motor size, unscrew the bolts that fix the support foot and/or motor foot to the foundation. 3. Remove the complete pump set from the piping. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 79: And 12 Combinations

    9.1.1. Access to impeller The numbers in brackets refer to the position numbers on the assembly drawing. Ø215/265-02 combination 1. Remove guards (28). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 80 Ø215/265-12 combination 1. Remove guards (28). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...
  • Page 81 3. Dismantle pipe (58). The top piece can now be lifted up allowing inspection of the impeller. Ø330/415/418/465/525-02 combination 1. Remove guards (28). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 82 4. Remove motor bracket and motor. 5. Remove set screws (22) with washers (23), which hold the rear cover (18) to the pump casing (1). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...
  • Page 83 Ø330/415/418/465/525-12 combination 1. Remove guards (28). 2. Remove set screws (64) which hold the motor bracket (20) to the pump casing (1). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99...
  • Page 84 (86). The motor and motor bracket with rear cover and shaft with impeller can now be lifted up allowing inspection of the impeller. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 85: Dismantling Shaft Seal

    (19) is pulled off the motor shaft. 2. Remove nut (6). Pull off the impeller (5) and remove sunk key (9). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 86 2. Remove set screws (71) and pull motor bracket and electric motor with shaft (17) apart, by which the shaft seal (10) is pulled off the shaft. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...
  • Page 87 Ø330/415/418/465/525-12 combination 1. Remove set screw (6). Pull off the impeller (5), and remove sunk key (9). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99...

  • Page 88: Dismantling Seat

    1. Before dismantling bearing, remove ring lock (12). Pull the shaft/coupling out of the bearing cover and press the bearing out of the bearing cover. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 89: Inspection

    12 combination : 1. Remove pointed screws (73). Pull off the shaft. The coupling might be heated to facilitate dismantling. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99...

  • Page 90: And 14 Combinations

    (also 76) which hold the flexible coupling to the spacer. After a vertical pull downwards take out the spacer (72). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...
  • Page 91 (86). The bearing housing with shaft and impeller can now be lifted up from the pump as a unit, and the impeller can be inspected. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 92 Ø330/415/418/465/525 1. Dismantle guard(69). 2. Remove Allen screws (76) at each end of the coupling and remove the spacer (72). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 93: Dismantling Shaft Seal

    9.2.2. Dismantling shaft seal DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 94 Ø330/415/418/465/525 1. Remove set screw (6). Pull off the impeller and remove sunk key (9). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...
  • Page 95 (10) is pulled off the shaft. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 96: Dismantling Seat

    - Shaft seal/rear cover: Check the seat for flatness and cracks. Check the rubber parts for elasticity. - Bearings: Replace in case of wear and noise. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 97: Assembling The Pump Set

    (27) is to bear against the shoulder of the rear cover (18). For ø418, secure the sealing ring (27) with counter sunk screws (105). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 98: Fitting Shaft Seal

    The use of a conical fitting bush as shown on the assembly drawing is recommended to avoid that the rubber bellows is cut. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf.

  • Page 99: Fitting Impeller

    OK within tolerance 0.07 mm. 2. For Ø215/265, mount the motor bracket and shaft seal (10) to the electric motor with shaft. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 100 (Ø215/265/418) or a set screw (Ø330/415/465/525). NOTE: Take care that the ring at the end of the shaft seal spring locates in the recess of the impeller. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 101: Fitting Rear Cover Or Motor Bracket

    3. Fit and fasten rear cover and/or motor bracket, mounted with the electric motor, in the pump casing. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99...

  • Page 102: Shaft

    70 μm 160 Nm 70 μm 160 Nm 70 μm 315 / 355 320 Nm DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 103: 02, 13 And 14 Combinations

    For Ø418, secure the sealing ring (27) with counter sunk screws. For NSL350-525, secure the sealing ring (27) and Guard plate (38) with Counter sunk screw (39). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 104: Fitting Bearings Or Shaft With Bearings

    Ø330/415/418/465/525) In 13 and 14 combinations: 1. Lead shaft with bearings into the bearing housing. Fit sunk key (16). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 105: Fitting Water Deflector

    Do not fasten bearing cover and electric motor until the motor has been mounted and the shaft can rotate freely without noise. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 106: Fitting Shaft Seal

    L-ring on the seat with a thin layer of silicone grease. Use a brush and ensure that no silicone grease ends up at the slide surface. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 107: Fitting Impeller

    1. Fit the sunk key in the shaft and lead the impeller towards the shoulder of the shaft. Secure the impeller with washers (7 and 8) and a nut. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 108: Fitting Bearing Housing And Rear Cover

    1. Place the O-ring (21) between pump casing and rear cover on the rear cover where it can be held with a little grease. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 109: Shaft

    EPDM which will be damaged by mineral grease. Use soft soap or silicone grease for EPDM. 10.2.7. Shaft When the pump has been assembled, check that the shaft rotates freely. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 110: Fitting Coupling

    3. Fit and fasten the motor bracket mounted with the electric motor to the pump casing. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...
  • Page 111 2. Secure the coupling part pump (70) to the shaft by means of the pointed screw (73). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 112 Allen screws (76) which are to be greased a little under the bolt head and tightened with the torque stated. 5. Fit pipe (58). DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...
  • Page 113 Hold the hand under the spacer and the bottom coupling bushes and carefully push the spacer into place. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 114 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf.

  • Page 115: Ordering Spare Parts

    When ordering spare parts please always state pump type, serial No. (appears on the name plate of the pump), position No. on the assembly drawing and designation on the spare parts list. Spare parts or Spare Parts Kit (SPK) can be ordered via spareparts@desmi.com Recommended spare parts stock for 2 years' operation to DIN 24296.
  • Page 116 27(only for Rear cover wear 330/415/418 ring /465/525) Bearing Bearing Snap ring Water deflector DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 117: Assembly Drawing Nsl-215/265 -02 Combination

    ORDERING SPARE PARTS 11.1. Assembly drawing NSL-215/265 -02 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 118: Spare Parts List Nsl-215/265 -02 Combination

    Allen screw Manometer Shaft Nipple Rear cover Sleeve Coupling Gauge valve Motor bracket Pipe plug DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 119: Assembly Drawing Nsl-215/265 -12 Combination

    ORDERING SPARE PARTS 11.3. Assembly drawing NSL-215/265 -12 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 120: Spare Parts List Nsl-215/265 -12 Combination

    Allen screw Pipe plug The pump has various options and combinations for the wet part material to fulfil desired applications. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 121: Assembly Drawing Nsl-215/265 -S12 Combination

    ORDERING SPARE PARTS 11.5. Assembly drawing NSL-215/265 -S12 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 122: Spare Parts List Nsl-215/265 -S12 Combination

    Allen screw Sleeve Guard Pipe plug *) Only if motor flange is bigger than bracket. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 123: Assembly Drawing Nsl-330/415/465 -02 Combination

    ORDERING SPARE PARTS 11.7. Assembly drawing NSL-330/415/465 -02 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 124: Spare Parts List Nsl-330/415/465 -02 Combination

    Gauge valve Lock washer Pipe plug Cover under bearing *) Support disc in light bearing housing DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 125: Assembly Drawing Nsl-330/415/465 -12 Combination

    ORDERING SPARE PARTS 11.9. Assembly drawing NSL-330/415/465 -12 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 126: Spare Parts List Nsl-330/415/465 -12 Combination

    O-ring Nipple Set screw Sleeve Lock washer Gauge valve Sealing ring 2 Pipe plug DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 127: Assembly Drawing Nsl300-418 -02 Combination

    ORDERING SPARE PARTS 11.11. Assembly drawing NSL300-418 -02 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 128: Spare Parts List Nsl300-418 -02 Combination

    Set screw Counter sunk screw Lock washer Gauge valve Stud Pipe plug Cover under bearing DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 129: Assembly Drawing Nsl300-418 -12 Combination

    ORDERING SPARE PARTS 11.13. Assembly drawing NSL300-418 -12 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 130: Spare Parts List Nsl300-418 -12 Combination

    Lock washer Counter sunk screw Stud Gauge valve Sealing ring 2 Pipe plug Guard DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 131: Assembly Drawing Nsl200/250/300-525 -02 Combination

    ORDERING SPARE PARTS 11.15. Assembly drawing NSL200/250/300-525 -02 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 132: Spare Parts List Nsl200/250/300-525 -02 Combination

    Sealing ring 2 Gauge valve Guide plate Pipe plug *) Option – See Appendix A DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 133: Assembly Drawing Nsl200/250/300-525 -12 Combination

    ORDERING SPARE PARTS 11.17. Assembly drawing NSL200/250/300-525 -12 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 134: Spare Parts List Nsl200/250/300-525 -12 Combination

    Guide plate (only for NSL300-525) Gauge valve Allan screw Pipe plug Washer *) Option – See Appendix A DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 135: Assembly Drawing Nsl350-525 -02 Combination

    ORDERING SPARE PARTS 11.19. Assembly drawing NSL350-525 -02 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 136: Spare Parts List Nsl350-525 -02 Combination

    Lock washer Sleeve Stud Gauge valve Cover under bearing Pipe plug Sealing ring 2 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 137: Assembly Drawing Nsl350-525 -12 Combination

    ORDERING SPARE PARTS 11.21. Assembly drawing NSL350-525 -12 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 138: Spare Parts List Nsl350-525 -12 Combination

    Sealing ring 2 Sleeve Guard Gauge valve Guard plate Pipe plug Counter sunk screw DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 139: Assembly Drawing Nsl-215/265 -14 Combination

    ORDERING SPARE PARTS 11.23. Assembly drawing NSL-215/265 -14 combination See ø330/415/525 pumps on the next page DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 140: Spare Parts List Nsl-215/265 -14 Combination

    Set screw Pipe plug Bracket Set screw Set screw Manometer fitting *) Only combination 14 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 141: Assembly Drawing Nsl-330/415/465 -14 Combination

    ORDERING SPARE PARTS 11.25. Assembly drawing NSL-330/415/465 -14 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 142: Spare Parts List Nsl-330/415/465 -14 Combination

    Set screw Hexagon nipple Manometer fitting *) Support disc in comb.13. *1) Option – See Appendix A DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 143: Assembly Drawing Nsl300-418 -14 Combination

    ORDERING SPARE PARTS 11.27. Assembly drawing NSL300-418 -14 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 144: Spare Parts List Nsl300-418 -14 Combination

    Pipe plug Hexagon nipple Set screw Set screw Manometer fitting *) Option – See Appendix A DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com...

  • Page 145: Assembly Drawing Nsl200/250/300-525 -14 Combination

    ORDERING SPARE PARTS 11.29. Assembly drawing NSL200/250/300-525 -14 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 146: Spare Parts List Nsl200/250/300-525 -14 Combination

    Washer Set screw Pipe Manometer fitting Hexagon nipple *) Option – See Appendix A DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 147: Assembly Drawing Nsl350-525 -14 Combination

    ORDERING SPARE PARTS 11.31. Assembly drawing NSL350-525 -14 combination DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 148: Spare Parts List Nsl350-525 -14 Combination

    Pipe plug Washer Sets crew Pipe Manometer fitting *) Option – See Appendix A DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 149 I.e. there shall always be 44.5 +/- 0.5mm from sliding surface on the seat to the end of the rotating part, on the sizes of ELK sealing used by DESMI. Please observe that the rotating part protrudes 2 mm beyond the shoulder on the pump shaft as shown below.
  • Page 150 This is done by mounting the seal as described and later turn the shaft about 10 revolutions - with water in the pump - but without adding pressure. Then pressure test the pump as normally done. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf.
  • Page 151 Figure 13-1 Lip seal kit in cover under bearing SPARE PARTS LIST Pos. No Description Cover under bearing Lip Seal O-ring DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby – Denmark Tlf. nr.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

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