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OPERATION AND MAINTENANCE INSTRUCTIONS

DESMI self-priming centrifugal pump

Modular S-N Monobloc

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:

[email protected]

Internet:

www.desmi.com

Special pump No..................................................

Manual:
T1441

Language:
English

Revision:
I (02/20)

Содержание Modular S N Monobloc

Страница 1: ...ng centrifugal pump Modular S N Monobloc DESMI PUMPING TECHNOLOGY A S Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 Fax 45 98 17 54 99 E mail desmi desmi com Internet www desmi com Special...

Страница 2: ...TOR 10 6 4 FITTING SHAFT SEAL 11 6 5 FITTING IMPELLER 11 6 6 FITTING GUIDE RING AND GUIDE VANE PIECE ONLY S32 25 110N 11 6 7 FITTING BEARING COVER AND SHAFT SEAL COVER 12 6 8 FITTING COUPLING 12 6 9 S...

Страница 3: ...mping Technology A S 3 Tagholm 1 9400 N rresundby Denmark Tel 45 96 32 81 11 Fax 45 98 17 54 99 E mail desmi desmi com www desmi com 17 1 SPARE PARTS LIST FOR PUMPS BIGGER THAN S32 25 110 AND S50 32 1...

Страница 4: ...e pump has horizontal inlet on the centre line and vertical outlet at the top The back of the impeller is equipped with relief blades to reduce the load on the bearings Relief holes in the impeller en...

Страница 5: ...XX YYY ZZZN MR XX YYY ZZZ Pump size where XXX Suction branch diameter YYY Pressure branch diameter ZZZ Standard impeller diameter M The material combination of the pump R The assembly combination of t...

Страница 6: ...icated is the airborne noise including the motor The noise depends on the motor type supplied as the noise from the pump can be calculated as the noise level of the motor 2dB A The capacity of the pum...

Страница 7: ...where indices in is suction branch out is pressure branch and calc are the values calculated by the user 3 INSTALLATION 3 1 MOUNTING FASTENING The pump should be mounted and fastened on a solid base p...

Страница 8: ...m smaller than the impeller gap of the pump in question The max permissible loads on the flanges stated in paragraph 2 3 are to be observed At installations pumping hot or very cold liquids the operat...

Страница 9: ...and pull the bearing housing with impeller and guide vane piece out of the pump casing Then remove Allen screw 29 only S32 25 110N and guide vane piece and guide ring can be dismantled from the bearin...

Страница 10: ...ssary to remove the coupling from the pump shaft during normal maintenance Otherwise dismantle the coupling by removing the pointed screw and pulling off the coupling If the coupling is dismantled on...

Страница 11: ...important to check that it is fitted correctly i e the chamfered lapped side is to face the seat The carbon ring can be held by a little grease When using oil on the shaft the bellows will settle and...

Страница 12: ...using on the bearing housing Lead the bearing housing into place and fasten Note that the drain passage for the shaft seal faces downwards If the shaft cannot rotate freely dismantle the bearing housi...

Страница 13: ...id The liquid also serves as coolant for the shaft seal In order to protect the shaft seal the pump must not run dry WARNING For safety reasons the pump is only allowed to operate against closed disch...

Страница 14: ...ow signs of heavy erosion caused by cavitation corrosion which may at times render an impeller unfit for use in a very short time Not unusually do similar erosions occur in pipe bends and valves elsew...

Страница 15: ...ce liquid in pump casing Wrong dimen sioning Contact DESMI Ventilate the system The pump has no or too low capacity 1 Wrong direction of rotation 2 Piping system choked 3 The pump is choked 4 Suction...

Страница 16: ...HE PUMP When the piping system has been drained note that there is still liquid in the pump Remove the liquid by dismantling the pipe plug 3 in the inlet cover of the pump 11 2 BEARING The pump is equ...

Страница 17: ...2 0 3 0 9 1 4 2 5 3 0 4 5 5 5 6 0 7 0 12 0 13 5 1 7 2 8 8 0 12 5 3 6 5 3 15 0 21 S50 32 135N 0 3 0 5 2 1 3 5 4 0 4 5 8 0 9 0 11 0 13 5 23 27 3 0 4 2 12 0 17 8 6 0 8 7 25 35 S70 50 175N 0 8 1 2 6 0 10...

Страница 18: ...1998 A1 2009 Pumps and pump units for liquids Common safety requirements EN12162 2001 A1 2009 Liquid pumps Safety requirements Procedure for hydrostatic testing EN 60204 1 2006 A1 2009 Safety of mach...

Страница 19: ...ELEVANT 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 recyc...

Страница 20: ...and S50 32 135N 1 Pump casing 15 Bearing cover 29 O ring 2 Pipe plug 16 Allen screw 70 Set screw 3 Pipe plug 17 Shaft 71 Allen screw 4 Sealing ring 18 Shaft seal cover 72 Intermediate flange 5 Impell...

Страница 21: ...10 Mech shaft seal 11 Water deflector 14 Support disc 15 Bearing 16 Sunk Key 17 Shaft 18 Shaft sealing cover 21 Gasket 22 Allen Screw 23 Inlet 24 Allen screw 25 Non return flap 26 Valve plate 28 Seali...

Страница 22: ...320 414 90 14 19 260 300 8x18 S125 100 220N 330 370 320 445 105 16 19 280 315 8x18 Type I2 g a f Dn1 K1 D1 Dn2 K2 D2 Q R S32 25 110 234 100 300 1 1 4 BSP suction 1 discharge 1 2 BSP S50 32 135N 234 84...