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13.3 Sound pressure level

The data in this table applies for pumps including
motor, such as MG, MMG and Siemens motors.
The values stated are maximum sound pressure
levels. Tolerances are according to ISO 4871.

50 Hz motor

2-pole:

n = 2900 min

-1

4-pole:

n = 1450 min

-1

6-pole:

n = 970 min

-1

Motor [kW]

Maximum sound pressure level

[dB(A)] - ISO 3743

Three-phase motors

2-pole

4-pole

6-pole

0.25

56

41

-

0.37

56

45

-

0.55

57

42

40

0.75

56

42

43

1.1

59

50

43

1.5

58

50

47

2.2

60

52

52

3

59

52

63

4

63

54

63

5.5

63

57

63

7.5

60

58

66

11

60

60

66

15

60

60

66

18.5

60

63

66

22

66

63

66

30

71

65

59

37

71

66

60

45

71

66

58

55

71

67

58

75

73

70

61

90

73

70

61

110

76

70

61

132

76

70

61

160

76

70

65

200

76

70

-

Motor [kW]

Maximum sound pressure level

[dB(A)] - ISO 3743

Three-phase motors

2-pole

4-pole

6-pole

250

82

73

-

315

82

73

-

355

77

75

-

400

-

75

-

60 Hz motor

2-pole:

n = 3500 min

-1

4-pole:

n = 1750 min

-1

6-pole:

n = 1170 min

-1

Motor [kW]

Maximum sound pressure level

[dB(A)] - ISO 3743

Three-phase motors

2-pole

4-pole

6-pole

0.25

-

-

-

0.37

-

-

-

0.55

-

-

-

0.75

-

-

-

1.1

64

51

-

1.5

64

52

62

2.2

65

55

60

3

54

57

67

4

68

56

67

5.5

68

62

67

7.5

73

62

70

11

70

66

70

15

70

66

57

18.5

70

63

57

22

70

63

59

30

71

65

59

37

71

65

61

45

75

65

64

55

75

68

64

75

77

71

63

90

77

71

63

110

81

75

62

42

English (GB)

Содержание NB 80-200/222VAXEF1BESBQQEWX2

Страница 1: ...NB NBG MTB Installation and operating instructions NB NBG MTB Installation and operating instructions all available languages http net grundfos com qr i QR96483177 GRUNDFOS INSTRUCTIONS...

Страница 2: ......

Страница 3: ...o 254 Suomi FI Asennus ja k ytt ohjeet 297 Fran ais FR Notice d installation et de fonctionnement 337 GR 378 Hrvatski HR Monta ne i pogonske upute 422 Magyar HU Telep t si s zemeltet si utas t s 463 I...

Страница 4: ...ciju i rad 797 Svenska SE Monterings och driftsinstruktion 838 Slovensko SI Navodila za monta o in obratovanje 878 Sloven ina SK N vod na mont a prev dzku 919 T rk e TR Montaj ve kullan m k lavuzu 959...

Страница 5: ...Storing the product 34 9 Servicing the product 34 9 1 Contaminated products 34 9 2 Service kits 34 10 Maintaining the product 34 10 1 Maintenance of the pump 34 10 2 Maintaining the mechanical shaft...

Страница 6: ...dial outlet port NB pumps comply with EN 733 NBG pumps comply with ISO 2858 2 1 1 Pumped liquids of NB NBG NB NBG pumps are suitable for clean thin non explosive liquids without solid particles or fib...

Страница 7: ...in Hungary 42 1 7 83 2930 m 3 h bar CMAX 60 0 1 11 5 3 2 9 7 8 12 10 PEL NA CL TM032218 Example of MTB nameplate Legend Pos Description 1 Type designation 2 Identification code take NB NBG nameplate a...

Страница 8: ...on is shown the impeller has a cylindrical trim for example 317 blank Closed impeller conical trim If two dimensions are shown the impeller has a conical trim for example 160 142 S Semi open impeller...

Страница 9: ...GJL 250 Bronze CuSn10 EN GJL 250 1 4301 1 4308 G EN GJL 250 EN GJL 200 EN GJL 250 1 4401 H EN GJL 250 Bronze CuSn10 EN GJL 250 1 4401 I 1 4408 1 4408 1 4517 1 4462 J 1 4408 1 4408 Carbon graphite fill...

Страница 10: ...eal 15 Shaft seal in pump Letter code for mechanical shaft seal and shaft seal rubber parts See Letter codes for shaft seals 16 Code for rated motor power kW See Codes for rated motor power 17 Code fo...

Страница 11: ...ainless steel shaft EN 1 4401 FXM O rings for pump cover single shaft seal arrangement DAQF shaft seal motor size outside DOE scope not for sale in North America 2 pole 50 Hz Example 3 NBG 100 65 200...

Страница 12: ...E EPDM V FKM Viton F FXM Fluoraz K FFKM Kalrez X HNBR U Dynamic O rings in FFKM and static O rings in PTFE For a thorough description of shaft seal types and materials see the data booklet NB NBG NK...

Страница 13: ...or ECM1 3 x 200 240 V C E motor ECM1 3 x 440 480 V D E motor ECM1 3 x 380 500 V V Intended for use with external VFD only asynchronous motor W Not for sale in North America X No motor or US DOE regula...

Страница 14: ...able from Grundfos 3 2 Transporting the product WARNING Overhead load Death or serious personal injury Pay attention to the pump weight and take precautions to prevent personal injury if the pump topp...

Страница 15: ...ctions and drawings as below 1 Remove the coupling guard and loosen the set screws in the shaft TM053327 2 Place the pump on the motor TM033906 3 Fit and tighten the motor screws to the correct torque...

Страница 16: ...coupling guard Tighten the screws to the correct torque M5 x 10 mm 6 2 Nm TM033912 4 1 2 Mounting of motor on pump housing with feet The pumps are supplied with a transport bracket protecting the shaf...

Страница 17: ...to the correct torque See below M8 20 4 Nm M10 40 8 Nm M12 70 15 Nm M16 145 30 Nm M20 150 30 Nm M24 200 40 Nm TM033914 4 Remove the nut washer and transport bracket TM033915 5 Press down the threaded...

Страница 18: ...o one can accidentally come into contact with hot or cold surfaces The pump must be sited in a well ventilated but frost free location 4 2 1 Vertical installation NB NBG For inspection and repair allo...

Страница 19: ...clearance as pumps with motors from 5 5 to 200 kW A TM034127 Clearance behind the motor Motor Minimum clearance A 0 25 4 kW 0 3 m A B TM077156 Clearance behind and above the motor Motor Minimum cleara...

Страница 20: ...eyes which must not be used for lifting the entire pump unit Weight See label on the packing Lift the pumps by means of nylon straps and shackles or a hook as shown on figures below TM033973 Correct...

Страница 21: ...capable of absorbing any vibration normal strain or shock Optimally the weight of the concrete foundation should be at least 1 5 times the weight of the pump The concrete foundation must have an absol...

Страница 22: ...e foundation should at least be 1 5 times the weight of the pump The foundation must be 100 mm larger than the base frame on all four sides See the figure below Lf h f Lf B f X X X X TM051558 Foundati...

Страница 23: ...doubts Follow the steps below to ensure a good foundation 1 Use an approved non shrinking concrete 2 Pour the foundation without interruptions to within 19 32 mm of the final level 3 Use vibrators to...

Страница 24: ...bout the grouting please contact an expert on grouting Grouting compensates for an uneven foundation distributes the weight of the unit dampens vibrations and prevents shifting Follow the steps below...

Страница 25: ...ut has thoroughly hardened check the anchor bolt nuts and tighten if necessary 12 Approximately two weeks after pouring the grout or when the grout has thoroughly dried apply an oil based paint to the...

Страница 26: ...To ensure quiet operation suspend the pipes from suitable pipe hangers Pumps fitted with motors up to and including frame size 132 are suitable for direct mounting in supported pipes TM053337 Direct...

Страница 27: ...mping in suggested value is 70 The selection of vibration damper will differ from installation to installation In certain cases a wrong damper may increase the vibration level Vibration dampers must t...

Страница 28: ...itoring of the operation we recommend that you install a pressure gauge on the outlet side and a mano vacuum gauge on the inlet side The pressure gauge tappings must only be opened for test purposes T...

Страница 29: ...nal injury The motor must be protected against overload by an external motor protective circuit breaker with IEC trip class 10 or 20 Grundfos recommends using trip class 20 The current setting of the...

Страница 30: ...nected to a frequency converter Frequency converter operation will often expose the motor insulation system to a heavier load and cause the motor to be more noisy than usual due to eddy currents cause...

Страница 31: ...liquid Death or serious personal injury Pay attention to the orientation of the priming hole to ensure that the escaping liquid does not cause personal injury or damage to the motor or other componen...

Страница 32: ...otation is shown by arrows on the pump housing and can visibly be checked by means of the motor fan Looking at the motor fan the direction of rotation must be clockwise 7 4 Starting up the pump 1 Full...

Страница 33: ...pends on the operating conditions that is every time the operating conditions change a new run in period is started Under normal conditions the leaking liquid evaporates and as a result no leakage wil...

Страница 34: ...e cost of having to dismantle the pump during startup to remove foreign objects can be very high 9 Servicing the product 9 1 Contaminated products CAUTION Biological hazard Minor or moderate personal...

Страница 35: ...10 4 4 Bearing grease The lithium based grease used should meets the following specifications NLGI class 2 or 3 viscosity of basic oil 70 to 150 cSt at 40 C temperature range 30 C to 140 C during cont...

Страница 36: ...ome into contact with hot or cold surfaces Fault Cause Remedy 1 The pump delivers no or too little liquid a The electrical connection is wrong for instance two phases Check the electrical connection a...

Страница 37: ...an specified Set the duty point in accordance with the data sheet d The pump draws in air due to low liquid level Increase the liquid level on the inlet side and keep it as constant as possible e The...

Страница 38: ...conditions in section Pipes are complied with c The bearings are lubricated with too little too much or unsuitable lubricant Replenish reduce or replace the lubricant d The axial pressure is too high...

Страница 39: ...750 m above sea level the motor must not be loaded more than 88 of the rated output At an ambient temperature of 75 C the motor must not be loaded more than 78 of the rated output If the pump is insta...

Страница 40: ...hanical shaft seals due to stress or vibration The continuous stable flow rate must be at least 10 of the rated flow rate The rated flow rate is stated on the pump nameplate 13 1 7 Maximum flow rate D...

Страница 41: ...e bar Bellows seal type B unbalanced AQ1 EPDM BAQE 0 120 C 16 16 16 16 AQ1 FKM BAQV 0 90 C 16 16 16 16 BQ1 EPDM BBQE 0 120 C 16 16 16 16 BQ1 FKM BBQV 0 90 C 16 16 16 16 Q7Q7 EPDM BQQE 25 to 120 C 16 1...

Страница 42: ...60 66 15 60 60 66 18 5 60 63 66 22 66 63 66 30 71 65 59 37 71 66 60 45 71 66 58 55 71 67 58 75 73 70 61 90 73 70 61 110 76 70 61 132 76 70 61 160 76 70 65 200 76 70 Motor kW Maximum sound pressure le...

Страница 43: ...service 2 If this is not possible contact the nearest Grundfos company or service workshop The crossed out wheelie bin symbol on a product means that it must be disposed of separately from household w...

Страница 44: ...85 716 111 Denmark GRUNDFOS DK A S Martin Bachs Vej 3 DK 8850 Bjerringbro Tel 45 87 50 50 50 Fax 45 87 50 51 51 E mail info_GDK grundfos com www grundfos com DK Estonia GRUNDFOS Pumps Eesti O Peterbur...

Страница 45: ...Jalan Tukang Singapore 619264 Tel 65 6681 9688 Faxax 65 6681 9689 Slovakia GRUNDFOS s r o Prievozsk 4D 821 09 BRATISLAVA Tel 421 2 5020 1426 sk grundfos com Slovenia GRUNDFOS LJUBLJANA d o o Lesko ko...

Страница 46: ...demarks displayed in this material including but not limited to Grundfos the Grundfos logo and be think innovate are registered trademarks owned by The Grundfos Group All rights reserved 2021 Grundfos...

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