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OPERATION AND MAINTENANCE INSTRUCTIONS
DESMI end suction centrifugal pump
DESMI Pumping Technology A/S
Tagholm l, DK-9400 Nørresundby, Denmark
Special pump No. ...............................................
ESLHT/-17 W180
Tel.: +45 96 32 81 11
Fax: +45 98 17 54 99
E-mail:
desmi@desmi.com
Internet:
www.desmi.com
Manual:
Language:
T1539
English
Revision:
B(01/2022)
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Summary of Contents for Desmi ESLHT/-17 W180
- Page 1 OPERATION AND MAINTENANCE INSTRUCTIONS DESMI end suction centrifugal pump ESLHT/-17 W180 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 Manual: Language: Revision: T1539...
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Page 2: Table Of Contents
15. INFORMATION RELEVANT FOR DISASSEMBLY OR DISPOSAL AT END-OF-LIFE .......... 19 16. ASSEMBLY DRAWING ESLHT25-180N/-17 W180..................19 17. DIMENSIONAL SKETCH ..........................20 _______________________________________________________________________________ DESMI Pumping Technology A/S www.desmi.com Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com... -
Page 3: Product Description
1. PRODUCT DESCRIPTION These operation and maintenance instructions apply to the DESMI ESLHT pump in /-17 execution. The ESLHT pump is designed for horizontal assembly with the pressure flange pointing upwards. The pump is a single-stage end suction centrifugal pump equipped with stainless steel shaft, balanced mechanical shaft seal mounted in a separate chamber with cooling ribs and fan cooling and closed impeller. -
Page 4: Technical Description
“calc” is the values calculated by the user. At the same time none of the forces or moments may exceed the indicated figure multiplied _______________________________________________________________________________ DESMI Pumping Technology A/S www.desmi.com Tagholm 1 9400 Nø rresundby – Denmark... -
Page 5: Installation
The pump is to be stored in a dry area. Before shipment the pump is to be fastened securely on pallets or the like. The pump is to be lifted in the following way: _______________________________________________________________________________ DESMI Pumping Technology A/S www.desmi.com Tagholm 1 9400 Nø rresundby – Denmark... -
Page 6: Dismantling
(39) Unscrew the coupling point screw and remove the coupling (38) with the cooling _______________________________________________________________________________ DESMI Pumping Technology A/S www.desmi.com Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com... -
Page 7: Dismantling Rear Cover And Impeller
Unscrews the set screws (37) Remove the cap nut (24) & washer (23) Remove rear cover unit. _______________________________________________________________________________ DESMI Pumping Technology A/S www.desmi.com Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com... -
Page 8: Dismantling Shaft Seal & Bearing
Unscrew the mechanical point screw and remove the mechanical seal (10) and O-ring Lift the bearing with bearing housing (27) _______________________________________________________________________________ DESMI Pumping Technology A/S www.desmi.com Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com... -
Page 9: Inspection
(48) the carbon bearing (4) 5.3 INSPECTION When the pump has been dismantled, check the following parts for wear and damage: _______________________________________________________________________________ DESMI Pumping Technology A/S www.desmi.com Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com... - Page 10 Replace in case of wear and noise. - Sliding bearing/shaft : Wear= max. 0.5 mm diameter difference. _______________________________________________________________________________ DESMI Pumping Technology A/S www.desmi.com Tagholm 1 9400 Nø rresundby – Denmark Tel: +45 96 32 81 11 Fax: +45 98 17 54 99 E-mail: desmi@desmi.com...
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Page 11: Assembling
10 revolutions - with water in the pump - but without adding pressure. Then pressure test the pump as normally done. _______________________________________________________________________________ DESMI Pumping Technology A/S www.desmi.com Tagholm 1 9400 Nø rresundby – Denmark... -
Page 12: Fitting Bearing House
Measured the coupling within the limits indicated in the below table. And tighten the set screw (37) after the coupling is in right position . _______________________________________________________________________________ DESMI Pumping Technology A/S www.desmi.com Tagholm 1 9400 Nø rresundby – Denmark... -
Page 13: Shaft
450 rpm and that a maximum of 1 minute is spent on acceleration from 0 to 450 rpm and 1 minute deceleration from 450 to 0 rpm. _______________________________________________________________________________ DESMI Pumping Technology A/S www.desmi.com Tagholm 1 9400 Nø rresundby – Denmark... -
Page 14: System Balancing
6. Pump and piping system Find the leakage, repair the fault, wrongly dimensioned non-return valve not submerged Check data sheet Q/H curve and NPSH or contact DESMI The pump uses too 1. Counter-pressure too low Insert orifice plate or check much power 2. -
Page 15: Inspection And Maintenance
Loosen the point screw, then the sealing element itself can now be pulled off the shaft. _______________________________________________________________________________ DESMI Pumping Technology A/S www.desmi.com Tagholm 1 9400 Nø rresundby – Denmark... -
Page 16: Replacing Ball Bearings
10 g If the ball bearing is to be replaced, it is necessary to disassemble the pump and dismantle the pump shaft (as described in paragraph 5.1.3): _______________________________________________________________________________ DESMI Pumping Technology A/S www.desmi.com Tagholm 1 9400 Nø rresundby – Denmark... -
Page 17: 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 www.desmi.com Tagholm 1 9400 Nø rresundby – Denmark... -
Page 18: Eu Declaration Of Conformity
14. EU DECLARATION OF CONFORMITY DESMI Pumping Technology A/S, hereby declare that our pumps of the ESLV and ESLH and ESLHT 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 19: 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. Alternatively the pump and motor can be returned to DESMI at end-of-life for safe recycling. -
Page 20: Dimensional Sketch
Cooling fan Support disc Air vent Sunk screw 17. DIMENSIONAL SKETCH Please require a dimensional sketch of the actual pump from DESMI. Connection holes on pump: Manometer: 1/4” BSP. Drain: 1/4” BSP. _______________________________________________________________________________ DESMI Pumping Technology A/S www.desmi.com Tagholm 1 9400 Nø...
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