Desmi DSL 300-320 Operation And Maintenance Instruction
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Desmi DSL 300-320 Operation And Maintenance Instruction

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OPERATION AND MAINTENANCE INSTRUCTION
DESMI "in-line" centrifugal pump
Tagholm 1 – DK-9400 Nørresundby – Denmark
Manual:
T1343
Special pump No. .................................................
Type DSL
DESMI Pumping Technology A/S
Tel.: +45 96 32 81 11
Fax: +45 98 17 54 99
E-mail:
desmi@desmi.com
Internet:
www.desmi.com
Language:
English
Revision:
Q (12/19)

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  • Page 1 OPERATION AND MAINTENANCE INSTRUCTION DESMI “in-line” centrifugal pump Type DSL DESMI Pumping Technology A/S Tagholm 1 – 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 Manual: Language: Revision:...

  • Page 2: Table Of Contents

    Contents 1. PRODUCT DESCRIPTION ........................... 4 1.1 DELIVERY ................................4 2. TECHNICAL DATA ............................... 4 2.1 ACCESSORIES ..............................4 2.2 SPACE AROUND THE PUMP ..........................4 2.3 EXPLANATION OF THE TYPE NUMBER ......................5 2.4 TECHNICAL DESCRIPTION ..........................6 3. INSTALLATION ..............................7 3.1 MOUNTING/FASTENING............................
  • Page 3 15. INFORMATION RELEVANT FOR DISASSEMBLY OR DISPOSAL AT END-OF-LIFE ......21 16. ASSEMBLY DRAWING ............................. 22 16.1 DSL300 SPACER DESIGN WITH BOTTOM ROLLER BEARING ............... 22 16.2 DSL300 COMPACT DESIGN WITH BOTTOM ROLLER BEARING ............24 16.3 DSL300 SPACER DESIGN WITH BOTTOM SLIDING BEARING ............... 26 16.4 DSL300 COMPACT DESIGN WITH BOTTOM SLIDING BEARING ............

  • Page 4: Product Description

    The pumps are available in sizes ranging from 300 mm to 400 mm on the pressure flange. The suction flange is bigger than the pressure flange. The DESMI DSL-pump is a 1-stage centrifugal pump with stainless steel shaft, mechanical shaft seals and closed impeller of the double-suction type.

  • Page 5: Explanation Of The Type Number

    In case of doubt, contact the supplier. The pump is suitable for the pumping of liquids with temperatures up to 80° C. With special shaft seal ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark...

  • Page 6: Technical Description

    The capacity of the pump appears on the name plate of the pump. If the pump has been delivered without motor, the pump capacity is to be indicated on the plate when mounting the motor. ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark...

  • Page 7: Installation

    At installations pumping hot or very cold liquids the operator must be aware that it is dangerous to touch the pump surface, and, consequently, he must take the necessary safety measures. ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 8: Wiring

    Press out the ceramic ring of the shaft seal (433.1) from the cover, and pull up the remaining components of the shaft seal. ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 9: Dismantling Bottom Bearing

    Dismantle the rear cover, e.g. by means of a pulley drawer. Pull up the shaft with impeller. Follow item A. ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 10: Assembling

    When using oil or silicone grease on the shaft the bellows will settle and seat in about 15 minutes, and until then tightness should not be expected. After start, check for leaks by viewing the leak hole. ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark...

  • Page 11: Fitting Bottom Bearing

    7. When the coupling guard and the copper pipe to the rear cover have been fitted, and the procedure in paragraph 6.1 has been followed, the pump is ready for start. ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark...

  • Page 12: Coupling Guard

    If the pump is not monitored, the installation of a safety device is recommended. ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 13: Starting

    Together with a reading of the differential pressure the quantity of water delivered can be determined against ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark...

  • Page 14: Fault-Finding Chart

    6. Pump and piping system wrongly dimensioned Ventilate the pump 7. The pump is not ventilated ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 15 1. Cavitation in pump Suction lift too high/ Suction line wrongly dimensioned/Liquid temperature too high ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 16: Inspection And Maintenance

    3. If the bearing has just been cleaned or if it is a new bearing, fill bearing completely and bearing housing approx. 1/3 with grease. 4. Use a recommended lithium-based grease, see the table below. ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 17 On these pumps the bottom roller bearing shall be re-lubricated with 10 grams of grease every 5000 running hours through the external grease nipple mounted on the side of the pump casing. ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark...

  • Page 18: Repairs

    When ordering spare parts please always state pump type and serial No. See the name plate of the pump and the spare parts drawing with item Nos. See assembly drawing. ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark...

  • Page 19: Operating Data

    1.5 x the permissible working pressure. The test pressure is stated in the test certificate and stamped into the discharge flange of the pump. ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark...

  • Page 20: Eu Declaration Of Conformity

    14. EU DECLARATION OF CONFORMITY DESMI PUMPING TECHNOLOGY A/S, hereby declare that our pumps of the type DSL are manufactured in conformity with the following essential safety and health requirements in the COUNCIL DIRECTIVE 2006/42/EC on machines, Annex 1. The following harmonized standards have been used: EN/ISO 13857:2008 Safety of machinery.

  • Page 21: Information Relevant For Disassembly Or Disposal At End-Of-Life

    15. INFORMATION RELEVANT FOR DISASSEMBLY OR DISPOSAL AT END-OF-LIFE No damage 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 22: Assembly Drawing

    16. ASSEMBLY DRAWING 16.1 DSL300 SPACER DESIGN WITH BOTTOM ROLLER BEARING ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 23 731.6 Fitting 932.2 Snap ring 731.7 Fitting 940.2 731.8 Fitting 940.3 731.9 Fitting ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 24: Dsl300 Compact Design With Bottom Roller Bearing

    16.2 DSL300 COMPACT DESIGN WITH BOTTOM ROLLER BEARING ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 25 Snap ring 731.4 Fitting 932.2 Snap ring 731.5 Fitting 940.2 731.6 Fitting 940.3 ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 26: Dsl300 Spacer Design With Bottom Sliding Bearing

    16.3 DSL300 SPACER DESIGN WITH BOTTOM SLIDING BEARING ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 27 Snap ring 731.12 Fitting 940.2 731.13 Fitting 940.3 732.2 Fitting 940.4 741.1 Ball valve ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 28: Dsl300 Compact Design With Bottom Sliding Bearing

    16.4 DSL300 COMPACT DESIGN WITH BOTTOM SLIDING BEARING ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 29 Snap ring 731.9 Fitting 940.2 731.12 Fitting 940.3 731.13 Fitting 940.4 732.2 Fitting ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 30: Dsl400 Spacer Design With Bottom Roller Bearing

    16.5 DSL400 SPACER DESIGN WITH BOTTOM ROLLER BEARING ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 31 731.7 Fitting 932.2 Snap ring 731.8 Fitting 940.2 731.9 Fitting 940.3 731.11 Fitting ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 32: Dsl400 Compact Design With Bottom Roller Bearing

    16.6 DSL400 COMPACT DESIGN WITH BOTTOM ROLLER BEARING ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 33 731.3 Fitting 932.2 Snap ring 731.4 Fitting 940.2 731.5 Fitting 940.3 731.6 Fitting ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 34: Dsl400 Spacer Design With Bottom Sliding Bearing

    16.7 DSL400 SPACER DESIGN WITH BOTTOM SLIDING BEARING ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 35 731.13 Fitting 940.2 732.2 Fitting 940.3 741.1 Ball valve 940.4 743.1 Gauge valve ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 36: Dsl400 Compact Design With Bottom Sliding Bearing

    16.8 DSL400 COMPACT DESIGN WITH BOTTOM SLIDING BEARING ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 37 Fitting 932.1 Snap ring 731.9 Fitting 940.2 731.11 Fitting 940.3 731.13 Fitting 940.4 ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

  • Page 38: Dimensional Sketch (Design Before 2006)

    DSL 400-495 20 pcs ø26 16 pcs ø26 18. DIMENSIONAL SKETCH (DESIGN AFTER 2006) ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 39 ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 40 ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 41 ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 42 ______________________________________________________________________________ DESMI Pumping Technology A/S Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

This manual is also suitable for:

Dsl 400-430Dsl 400-495

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