NK End-suction centrifugal pumps

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Being responsible is our founation Think ahea makes it

MEETING YOUR NEEDS IS OUR JOB NK En-suction centrifugal

1 Kawasan Inustri Pulogaung, Jakarta 139 Tel. 021-469 Fax.

1 Being responsible is our founation Think ahea makes it possible Innovate is the essence HARD-WORKING AND RELIABLE MEETING YOUR NEEDS IS OUR JOB NK En-suction centrifugal pumps PT. GRUNDFOS POMPA Jl. Rawa Sumur III Blok III CC.1 Kawasan Inustri Pulogaung, Jakarta 139 Tel Fax sales _inonesia@grunfos.com Authorize Dealer: www. grunfos.com

GENERAL DATA GENERAL DATA Applications Flexible coupling The pump is suitable for the pumping of thin, clean an non-aggressive liquis without soli particles or fibres in: District heating Water

Fire fighting Environment engineering Max. 0 m³/h Max. 0 m - C up to + C Max. or 16 bar. Operating Pressure = inlet pressure + pressure againts a close valve (Q=0) Max. 9 bar Max.

If the pump housing, motor or the entire unit is move, alignment is always neccessary. Bearing assembly with shaft The bearing assembly inclues two stury antifriction bearings lubricate for life.

2 GENERAL DATA GENERAL DATA Applications Flexible coupling The pump is suitable for the pumping of thin, clean an non-aggressive liquis without soli particles or fibres in: District heating Water supply Distribution an transfer Pressure Boosting Irrigation Airconitioning Cooling plants Inustry Operating conitions Flow Hea Liqui temperature Operating pressure Inlet pressure Pump Oil transfer Fire fighting Environment engineering Max. 0 m³/h Max. 0 m - C up to + C Max. or 16 bar. Operating Pressure = inlet pressure + pressure againts a close valve (Q=0) Max. 9 bar Max. 7 bar for mm impellers or bigger Stanar version or a spacer coupling which allows the motor to remain in place uring the above mentione ismantling to avoi subsequent alignment. If the pump housing, motor or the entire unit is move, alignment is always neccessary. Bearing assembly with shaft The bearing assembly inclues two stury antifriction bearings lubricate for life. Oversize pumps with shaft 5 = mm however, have open bearings with grease nipples. A thrower on the shaft prevents liqui from entering the bearing housing. In stuffing box versions the shaft is protecte by a stain-less steel sleeve at the shaft seal. All the NK pumps accoring to EN 733 are covere by only four sizes of shaft, shaft seal an bearings, an the oversizes by an aitional three sizes. Due to the ample sizes of the bearings an shaft the NK pumps can be riven by a belt rive, belt variator or a iesel engine, if require. Shaft seal The stanar version is provie with a mechanical Burgmann shaft seal accoring to DIN 9, Grunfostype BAQE. Depening on pumpe liqui an operating conitions other types an stuffing boxes are available. Shaft sleeve is available on request. Non-self-priming single-stage centrifugal volute pump with axial suction port, raial ischarge port an horizontal shaft components. The NK pumps have imensions an nominal performances accoring to EN 733 ( bar) but are esigne for 16 bar operation wherever the shaft seal type allows it. NKG pumps accoring to DIN 256 (16 bar) are escribe in a separate booklet. Pumps up to 25 bar operating pressure are available on request. s outsie of the official DIN-norm (NK an up) will be calle "oversize". Dimensions can iffer from other suppliers. The suction an ischarge flanges are accoring to EN 05 PN or 16. All pumps are ynamically balance accoring to ISO 40 class 6.3 an impellers are hyraulically balance. Pump an motor are mounte on a common baseplate in accorance with DIN 259 in all-wele steel. Oversizes have profile base frames. Due to the pump esign the complete bearing assembly incluing impeller an shaft seal can be ismantle without removing the volute casing from the pipe system (back-pull-out system 3 ). The motor is a totally enclose, fan-coole squirrelcage Grunfos MMG motor imensione to IEC publication 72 an complying with IEC 34 an DIN Mounting esignation Enclosure class Insulation class Ambient temperature Voltages, Hz Thermistor B3 (IM 1) IP F ( C) Max. 40 C 3 x 0-0/3-4 V 3 x 3-4 V TP 2 accoring to DIN when P2 > 3 kw NK units with Hz motors an NKE units with MGE motors are also available, but are escribe in separate booklets. Other brans of motors can be mounte on request. Surface treatment All stationary cast iron parts are ip-painte with water-base, ether-epoxy no-lea painting. The thickness of the film is 25 Finally, the prouct is spray-painte with black waterbase, ether-epoxy no-lea painting. The thickness of the ry coating is 35 5 (im.

GENERAL DATA GENERAL DATA Stuffing boxes Uncoole stuffing box (SNE) with internal barrier flui for the pumping of clean liquis in suction operation or at inlet pressures up to 4 bar Mechanical

1 -, -3 4-pole, - -, -3 4-pole, - -, -3 4-pole, - 4- an 6-pole, 0- Uncoole stuffing box (SNO) without internal barrier flui for the pumping of clean liquis in suction operation or at inlet

O-ring seal (DAQM), balance for high pressure an temperatures C to C. (Not stanar) Coole pumpe liqui (120 C) is use for cooling the seal.

3 GENERAL DATA GENERAL DATA Stuffing boxes Uncoole stuffing box (SNE) with internal barrier flui for the pumping of clean liquis in suction operation or at inlet pressures up to 4 bar Mechanical shaft seals Rubber bellows seal (BAQE), counteracts eposits from the pumpe liqui. Sectional rawing NK -.1 -, -3 4-pole, - -, -3 4-pole, - -, -3 4-pole, - 4- an 6-pole, 0- Uncoole stuffing box (SNO) without internal barrier flui for the pumping of clean liquis in suction operation or at inlet pressure over 4 bar. O-ring seal (AQAE), unbalance, for high pressures. Uncoole stuffing box (SNF) with external barrier flui for the pumping of contaminate an maloorous liquis. O-ring seal (DAQM), balance for high pressure an temperatures C to C. (Not stanar) Coole pumpe liqui (120 C) is use for cooling the seal. Pos a Pump casing Support Impeller Shaft Description Pos Description Bearing shaft seal spacer Mechanical seal cover Spring washer Fixing impeller plane washer 16 Vring Mechanical shaft seal 71 Screw Seeger ring Key Nut Bearing 66-2Z-C3 Bearing 66-2Z-C Key Foot Bearing cover Bearing cover Plug Plug O-ring 19a 0 Stu Nut

TECHNICAL DATA TECHNICAL DATA Shaft PRODUCT FEATURES A thrower on the shaft prevents liqui from entering the bearing housing.

The stainless steel shaft will resist corrosion for the life of the pump.

Shaft Seal The stanar version is provie with a mecha-nical Burgmann shaft seal accoring to DIN 9, Grunfos type BAQE.

Back-to-back ouble mechanical shaft seals, an "quench", are available for all variants on request.

In both moels, the impeller can be remove without is-mantling the pump housing or pipework.

conitions where rust is a serious threat. The bearing assembly inclues two stury anti-friction bearings.

4 TECHNICAL DATA TECHNICAL DATA Shaft PRODUCT FEATURES A thrower on the shaft prevents liqui from entering the bearing housing. In stuffing box versions the shaft is protecte by a stainless steel sleeve at the shaft seal. The stainless steel shaft will resist corrosion for the life of the pump. Suction an Discharge Flanges The suction an ischarge flanges are accoring to DIN 1 PN or 16. Shaft Seal The stanar version is provie with a mecha-nical Burgmann shaft seal accoring to DIN 9, Grunfos type BAQE. Depening on pumpe liqui an operating conitions other types an stuffing boxes are available. Back-to-back ouble mechanical shaft seals, an "quench", are available for all variants on request. Bearing Assembly Impeller The NB an NK pumps are esigne with a "back-pull-out" system. In both moels, the impeller can be remove without is-mantling the pump housing or pipework. NB an NK pumps can be supplie with a bronze impeller which enables further applications an extens pump life even uner high salinity conitions where rust is a serious threat. The bearing assembly inclues two stury anti-friction bearings. Oversize pumps with shaft 5 = mm however, have open bearings with grease nipples. All the NK pumps accoring to DIN 2 are covere by only four sizes of shaft, shaft seal an bearings, an the oversizes by an aitional three sizes. Due to the ample sizes of the bearings an shaft the NK pumps can be riven by a belt rive, belt variator or a iesel engine, if require. The bearings are esigne for a life-span of minimum 20,000 hours uner normal loa. The bearings are lubricate for life.

5 NK -0 kw NK -3 kw NK - kw NK - NK 0- PERFORMANCE RANGES PERFORMANCE RANGES H [m] 0 NK 20 min -1 NK 40- kw NK - NK - kw kw NK -3 NK -3 0 kw 1 kw NK - kw NK kw NK - 1 kw NK - 0 kw 40 NK -.1 kw NK - kw NK 40- kw NK - kw NK - kw NK - kw NK - kw NK -.1 kw NK - kw NK 40- kw NK - kw NK - kw 20 NK -.1 kw NK - NK 40- NK - NK - 3 kw kw kw kw NK - kw Q [m³/h] TM The power shown above is the maximum. Please contact grunfos for etails NK -0 3 kw H [m] NK 14 min -1 NK 0- kw NK - kw NK 40-3 kw NK - kw NK -3 kw NK - kw NK - kw NK - kw NK -3 kw NK - kw NK - 1 kw 40 NK 0- kw kw NK -3 NK -3 kw kw NK -3 kw 20 NK 0-0 kw NK 0-3 kw NK - kw NK - NK kw NK kw NK - kw NK - 0. kw NK 40- kw NK 40- kw NK - 3 kw NK - kw NK - kw NK - kw NK - 4 kw NK - 4 kw kw kw NK kw NK - 0. kw NK 40- NK - 0. kw NK - kw Q [m³/h] TM The power shown above is the maximum. Please contact grunfos for etails

6 PERFORMANCE RANGES TECHNICAL DATA Pump imension an weight H [m] NK 9 min ¹ 40 NK - NK NK - NK - 0 NK 0 - NK - 3 NK - 3 NK 0-3 NK NK - 00 Q [m³/h] NK -.1 NK - NK -.1 NK - NK -.1 NK - NK 40- NK 40- NK 40- NK 40- NK - NK - NK - NK - NK - NK - NK - NK - NK -3* NK - NK - NK - NK -3* NK - NK - NK -3* NK 0-** 0 NK 0- * 4-pole only ** 2-pole an 4-pole only Dimensions Supporting feet Shaft DN s DN t a f h 1 h 2 b m 1 m 2 n 1 n 2 w S 1 S 2 C D5 l x t n M16 M16 M16 M16 M

TECHNICAL DATA TECHNICAL DATA Unit imensions an weights 20 min-¹ (2-pole motors) Common With stanar coupling a a ² h ² 14 min-¹ (4-pole motors) With stanar coupling 20 min-¹ (2-pole motors) Common

7 TECHNICAL DATA TECHNICAL DATA Unit imensions an weights 20 min-¹ (2-pole motors) Common With stanar coupling a a ² h ² 14 min-¹ (4-pole motors) With stanar coupling 20 min-¹ (2-pole motors) Common With stanar coupling a a ² h ² min-¹ (4-pole motors) With stanar coupling TM

8 TECHNICAL DATA TECHNICAL DATA 20 min-¹ (2-pole motors) Common With stanar coupling a a ² h ² 14 min-¹ (4-pole motors) With stanar coupling 20 min-¹ (2-pole motors) Common With stanar coupling a a ² h ² 14 min-¹ (4-pole motors) With stanar coupling Please contact Grunfos for extene range

E Series Back Pull Out End Scution. Centrifugal Pump DIN 24255

E Series Back Pull Out End Scution. Centrifugal Pump DIN 24255 Back Pull Out End Scution Centrifugal Pump DIN 24255 MARKET SECTORS Buidling Services, RHVAC, Agriculture, Civil, Industries Back Pull Out End Suction Centrifugal Pump DIN 24255 MATERIAL OF CONSTRUCTION