Desmi S70-50-175N/A11-09 Operation And Maintenance Instructions

Self-priming centrifugal pump, modular s-n super bilge pump

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OPERATION AND MAINTENANCE INSTRUCTIONS
DESMI self-priming centrifugal pump
DESMI Pumping Technology A/S
Tagholm 1 – DK-9400 Nørresundby – Denmark
Modular S-N Super Bilge Pump
Tel.: +45 96 32 81 11
Fax: +45 98 17 54 99
E-mail:
desmi@desmi.com
Internet:
www.desmi.com
Manual:
Language
T1444
Revision:
English
F (11/19)

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Summary of Contents for Desmi S70-50-175N/A11-09

  • Page 1 OPERATION AND MAINTENANCE INSTRUCTIONS DESMI self-priming centrifugal pump Modular S-N Super Bilge Pump 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...
  • Page 2: Table Of Contents

    Table of contents: 1. PRODUCT DESCRIPTION ..........................3 1.1 DELIVERY ................................3 2. TECHNICAL DATA ............................. 3 2.1 NAME PLATE ................................. 3 2.2 EXPLANATION OF THE TYPE NUMBER ......................4 2.3 TECHNICAL DESCRIPTION ..........................4 3. INSTALLATION ..............................5 3.1 MOUNTING/FASTENING ............................ 5 3.2 WIRING ...................................
  • Page 3: Product Description

    1. PRODUCT DESCRIPTION These operation and maintenance instructions apply to the DESMI Modular S-N super bilge pump. The pump is available in three sizes, DN50 DN70 and DN80 on the pressure flange. The suction flange is bigger than the pressure flange.
  • Page 4: Explanation Of The Type Number

    The permissible loads on the flanges appear from the following table. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby - Denmark Tel.: +45 96 32 81 11...
  • Page 5: Installation

    V-belt pulley may be heated to about 100º C after which the V-belt pulley is easily lead over the shaft towards the shoulder. Alternatively, the V-belt pulley may be mounted with a TAPER LOCK bush. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby - Denmark Tel.: +45 96 32 81 11...
  • Page 6 When dimensioning the V-belt pulley it is important to follow the rules of the DESMI nomograms for the pump size in question - contact DESMI. Be careful when fitting the suction line to the pump so that it is absolutely tight, as even small leakages may impede the priming.
  • Page 7: Wiring

    Before dismantling shaft seal (10), remove the sunk key (32). Remove Allen screws (19) which hold the bearing housing to the shaft seal cover. Pull shaft seal cover and bearing housing apart, by which shaft seal and water deflector are pulled off the shaft. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby - Denmark Tel.: +45 96 32 81 11...
  • Page 8: Dismantling Seat

    Push the slide ring over the shaft with the hand. If the rubber bellows is tight, use a fitting tool and take care that the slide ring is not damaged. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby - Denmark Tel.: +45 96 32 81 11...
  • Page 9: Fitting Star Wheel

    Pumps which are not in operation during frost periods are to be drained to avoid frost damage. Remove the plug in the inlet cover to empty the pump. Alternatively, it is possible to use anti-freeze liquids in normal constructions. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby - Denmark Tel.: +45 96 32 81 11...
  • Page 10: Dismantling

    Together with a reading of the differential pressure the quantity of water delivered can be determined against the characteristics of the pump. DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby - Denmark Tel.: +45 96 32 81 11...
  • Page 11 The pump makes noise 1. Cavitation in pump Suction lift too high/ Suction line wrongly dimensioned/Liquid temperature too high DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby - Denmark Tel.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail:...
  • Page 12: Inspection And Maintenance

    (10.2 mWC = 1 bar) The powers stated in the table below are the highest possible absorbed by the pump, whereas the min./max. values for flow and pressure indicate DESMI's recommended operating range for the pump with the biggest impeller.
  • Page 13: Ec Declaration Of Conformity

    14. EC DECLARATION OF CONFORMITY DESMI PUMPING TECHNOLOGY A/S, hereby declare that our pumps of the type Modular S-N super bilge pump are manufactured in conformity with the following essential safety and health requirements in the COUNCIL DIRECTIVE 2006/42/EC on machines, Annex 1.
  • Page 14: 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 15: Assembly Drawing

    28 Gasket 45 U-pipe 15 Ball bearing 29 O-ring 75 Drain plug 76 Relief valve DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby - Denmark Tel.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...
  • Page 16: Dimensional Sketch

    344 200 240 24j6 220 270 Type S70-50-175N/A- 4x18 4x18 S80-70-175N/A- 8x18 4x18 S100-80-175N/A- 8x18 8x18 DESMI Pumping Technology A/S Tagholm 1 9400 Nørresundby - Denmark Tel.: +45 96 32 81 11 Fax +45 98 17 54 99 E-mail: desmi@desmi.com www.desmi.com...

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