Spare parts CATALOGUE

1 NKS05/2003 GRUNDFOS NKSS pare parts CATALOGUE2 NKSType keyFor units without motor the motor data are left out, andfor bare shaft pumps the coupling and motor data areleft example describes a complete pump setNKS 125-100- 200 with an impeller diameter of 190 mm,of austenitic steel material number DIN to EN 10 088 with casing ring in , mechanical seal type BAQE, with a spacercoupling type PSM, and a 4-pole 11 kW for pump version Codes for bearing bracket Codes for materialCodes for stuffing boxCodes for mechanical shaft seal * EN-GJL-200 according to EN 1561** material number according to EN 10 088 resembles ASTM CF-8 MNKS125 - 100 - 200 / 190 - 3 - W - L - BAQE - 2 / 11 / 4 Type rangeSuction flange DNDischarge flange DNNominal impeller sizeActual impeller diameterMaterial executionPump versionBearing bracket executionSeal code designationCoupling typeMotor nominal shaft powerMotor pole numberCodeDescription of pump designWClosed impeller, neck ring in casingExAs above, execution acc.

2 To ATEXCodeDescription of bearing type on drive sideLSingle-row ball bearing (63xx)HDouble-row angular contact ball bearing (33xx)JTwinned single-row angular contact ball bearing (73xx)PositionCodeDescription of seal design1 SSoft packing type stuffing box2coolingNUncooled stuffing boxKCooled stuffing box3barrier fluidEWith internal liquidFWith external liquidOWithout barrier fluidPositionCodeDescription of seal design and materials1AO-ring seal, unbalancedBRubber bellows sealDO-ring seal, balancedMMetal bellows sealODouble seal, back-to-backPDouble seal, tandemQSeal with flush, quench sealWDouble cartridge 2rotating ring3stationary ringACarbon, metal-impregnatedBCarbon, synthetic resin-impregnatedCOther types of carbonSChromium steelUWolfram carbide (tungsten carbide)QSilicon carbideVAluminium oxideXOther types of ceramics 4rubberEEPDMVFKM (Viton)KPFE (Kalrez)MPTFE-covered O-ringPNBR (Nitrile)SQ (Silicone rubber)TPTFE (Teflon)Version123**468**579**Componentc ast steelaustenitic steelaustenitic steelcast steel austenitic steel austenitic steel cast steel austenitic steel austenitic flange ring JL 1030* (G-CuSn10 Zn)PTFE+ 25% packing sleeveJL 1030* seal 1030* (GG 20)Baring housingJL 1030* (GG 20)3 NKSC onfiguration number keyEach of the 8 digits in the configuration number describes one or more possibilities of variation in the construction of thepump (unit).

3 The number is configured from the tables shown below:Example: The fourth digit determines the material version of the pump (wetted parts ) and the material of the neck pump/neck ring CodeCode / coupling *) / bronze81 Coupling / PTFE+glass92 Spacer coupling PSM3 Spacer cplg. PSM-V (Ex)*) Bare shaft pumpNominalImpeller diameter [mm]CodeCode Shaft sealCodeP2 kW Motornom. Power12511 BAQE = standard0 Bare shaft Packing73630 CCSNF Packing84 DSKO E22 JDQQEF30 Pump size suction-disch. CodeKDQQVG3750-321 Oback-to-back seal *)H4565-402 Ptandem seal*)K5565-50Q*) details from type keyL7580-503M9080-65RN110100-654P132100- 80SQ160125-805R200125-1006S250150-1257T3 15200-1508U355250-200EV400300-250FW450X5 00Y560Z630 First digit does not changeCode VoltagePole0 Exclusive of motorA3 x 220-240/380-415 V, 50 Hz, 3 x 220-277/380-480 V, 60 Hz2B3 x 380-415 V, 50 Hz, 3 x 380-480 V, 60 Hz2C3 x 220-240/380-415 V, 50 Hz 3 x 220-277/380-480 V, 60 Hz4D3 x 380-415 V, 50 Hz, 3 x 380-480 V, 60 Hz4 Configuration numberJ63312 BBE3 x 380-415 V, 50 Hz, 3 x 380-480 V, 60 Hz6 Bare shaft pump000F3 x 220-240/380-415 V, 50 Hz, 3 x 220-277/380-480 V, 60 Hz6 Unit excl.

4 Motor0 Complete unit4 NKSI nstructions for use of the CATALOGUE The parts that form NKS pumps are divided in three basic logical units:- Hydraulic partgroup Ipage7- Mechanical partgroup IIpage14- Sealing partgroup IIIpage23 The division of a NKS pump to individual groupsfollows from picture mentioned groups are included in the cata-logue separately. Each group starts with itsown assembly with numbers of positions, and alist with the names of the included following pages, the parts of theparticular group are included in ascendingorder with respect to the numbers of individual parts vary according to type sizeof the pump and they can also vary in depend-ence on material (or constructional) design ofthe pump, or they can depend on the utilizedseal. We therefore recommend the followingprocedure for search for the CATALOGUE designa-tion of the Spare part:Determine type size of the pump from the following table according to the suction flange,discharge flange and nominal impeller size.

5 Notes:**) These pumps exceed the prescriptions stated in ISO 2858, but follow generally accepted sizing of impellerSizeDN1DN2 Nomi-nal of impellerSizeDN1DN2 Nomi-nal of impeller15032125151008012529150125250216 016160303153200176520031400425018 2503220015025056550125193153331561602012 580160344007402002120035**50082502225036 **250200315931523 31537**4001080651252440038**500111602510 020039**63012502002625040**3002503151325 02731541**400143152840042**50043**630 Table 1: Determination of type size of the assemblyPicture No. 1- Basic units of the NKS pump5 NKS According to picture, determine 1 which group the required Spare part belongs to. If you are not certain, you can get better idea from assemblies of the individual groups included in picture 2 (page 6), picture 14 (page 14), picture 35 (page 22), picture 36 (page 22) and picture 37 (page 23). Determine the name of the required Spare part and number of the position according to appropriate set of the group of parts and according to the following list of parts on pages 6, 14 or 23.

6 After you determine the type size of the pump, number of the position of the required Spare part and affiliation of the required Spare part to the particular group, determine the designation of size of the required part from table 2 (page 7), table 17 (page 15), or table 40 (page 24). Find appropriate table for the part needed. For parts that do not depend on the material design of the pump, it is also possible to read CATALOGUE designation for ordering of the required Spare part of the particular size from the appropriate table. In the case that the part depends on material design of the pump, it is necessary to determine code designation of the material design from the type designation (first letter in reading 6). CATALOGUE designation of the part can then be found in the table in column with corresponding code designation of material design of the pump in the header. In the case that impeller is the Spare part, it is necessary to determine its effective diameter (reading 5) from type des-ignation and to communicate it to the manufacturer in order to ensure identical operating parameters after the re-placement of the Spare part.

7 In the case that lantern is the Spare part, it is necessary to determine code designation of the packing (reading 7) from the type designation of the pump so that it were obvious that the chamber between the cover and lantern is cooled (heated) or not. In the case of an uncooled (unheated) design, there is letter N in reading 7 of the type designation of the pump. In the case that compressed packing is fitted in the pump, this letter will be in the second position of the three-letter code. In the case that mechanical packing is fitted in the pump, the letter will be in the last position of the five-letter code. CATALOGUE designation of the lantern for its individual sizes will then be found in Table 45 in column for code N . In the case of a cooled (heated) design, letter K will replace letter N in the above-mentioned positions in the type designation of the pump. CATALOGUE designation of the lantern will then be found in Table 45 in column marked as code K.

8 In the case that pump bearings or support rings are the Spare parts , it must be determined from the type designation whether there is basic or reinforced shaft support in the pump. In the case that letter A is in the second position of the code designation of construction design (reading 11), the pump is fitted with basic shaft support and CATALOGUE designation of distance rings of the rear bearing and of the rear bearing will be determined from Tables 23 - 25 on pages 20 and 21. In the case that letter B is in the second position of the code designation of construction design, the pump is fitted with reinforced shaft support and CATALOGUE designation of distance rings of the rear bearing and of the rear bearing will be determined from Tables 26 and 27 on page 21. In the case of reinforced shaft support, the inner distance ring of the rear bearing is not required. Distance rings of the front bearing and the front bearing will remain identical for both designs. Note: parts included in Spare parts CATALOGUE are supplied on a common basis.

9 Connecting parts not included in the CATALOGUE will be supplied at request. The manufacturer will determine their sizefrom provided production number of the drawing does not include identification plates and part of NKS pump list of parts housing3 Neck ring4 Bracket foot5 Impeller nut 6 Impeller key12 Drain plug14 Union for cooling chamber17 Gasket18O-ring for lantern, cover19O-ring for lantern, pump housing66O-ring for pump cover70 Gasket73O-ring for impeller/sleeve74O-ring for impeller nutPicture No. 2 - Hydraulic part of the NKS pump7 NKSPos. Size12345678910111213141516171819 Size of the appropriate part112345678910111213141516171819212345 6789101112131415161718193231554768894123 5123562335734568511121112211122122236111 2111221112212223121112121221122222222141 1111111111111111111711111111111111111111 8111211122111221222319124612467124671356 7661246124671246713567701112121221122222 2227311121112211122122237411121112211122 12223 Pos. Size202122232425262728293031323334353637 383940414243 Size of the appropriate part1 2021222324252627282930313233343536373839 404142432 2021222324252627282930313233343536373839 404142433 101011101214134 5 5 7 9 10 6 8 9 10 9 1011101212141313161915171819522233233333 3344444464556622233233333334444446455612 2222222223333333333333331411111111111111 1111111111171111111111111111111111111822 2233233333334444446455619356785678678678 9789107891066356785678678678978910789107 0222222222333333333333333732223323333333 4444446455674222332333333344444464556 Table 2: Hydraulic part of NKS pumps association of Part size to type size of the pump8 NKSP osition No.

10 1 - Impeller Part sizeMaterial acc. to type key code2, 6, 73, 8, 91, 4, 5 Product number1J2 03464 2J2 03464 3J2 03464 42J2 03504 2J2 03504 3J2 03504 43J2 03492 2J2 03492 3J2 03492 44J1 02148 2J1 02148 3J1 02148 45J2 03513 2J2 03513 3J2 03513 46J2 03467 2J2 03467 3J2 0346747J2 03498 2J2 03498 3J2 03498 48J2 03536 2J2 03536 3J2 03536 49J1 02174 2J1 02174 3J1 02174 410J2 03520 2J2 03520 3J2 03520 411J2 03496 2J2 03496 3J2 03496 412J2 03408 2J2 03408 3J2 03408 413J2 03510 2J2 03510 3J2 03510 414J1 02186 2J1 02186 3J1 02186 415J2 03417 2J2 03417 3J2 03417 416J2 03502 2J2 03502 3J2 03502 417J2 03533 2J2 03533 3J2 03533 418J2 03515 2J2 03515 3J2 03515 419J1 02197 2J1 02197 3J1 02197 420J2 03499 2J2 03499 3J2 03499 421J2 03386 2J2 03386 3J2 03386 422J2 03521 2J2 03521 3J2 03521 423J1 02110 2J1 02110 3J1 02110 424J1 02180 2J1 02180 3J1 02180 425J2 03404 2J2 03404 3J2 03404 426J1 02118 2J1 02118 3J1 02118 427J1 02122 2J1 02122 3J1 02122 428J1 02134 2J1 02134 3J1 02134 429J2 03537 2J2 03537 3J2 03537 430J1 02191 2J1 02191 3J1 02191 431J1 02202 2J1