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.
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...
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...
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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.
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...
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...
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...
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...
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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:...
(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.
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.
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.
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