Grundfos NB Installation And Operating Instructions Manual
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Summary of Contents for Grundfos NB
- Page 1 GRUNDFOS INSTRUCTIONS NB, NBG, MTB Installation and operating instructions NB NBG MTB Installation and operating instructions (all available languages) http://net.grundfos.com/qr/i/QR96483177...
- Page 3 NB, NBG, MTB English (GB) Installation and operating instructions ........4 Appendix A .
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Page 4: Table Of Contents
....21 Read this document before you install the Foundation of NB, NBG pump with base product. Installation and operation must frame ..... 22 comply with local regulations and accepted Pipes . -
Page 5: Notes
Grundfos installation and operating instructions, safety instructions and service instructions. 2.1.1 Pumped liquids of NB, NBG NB, NBG pumps are suitable for clean, thin, non- explosive liquids without solid particles or fibres. The Observe these instructions for explosion- pumped liquid must not attack the pump materials proof products. -
Page 6: Identification
163.2 17.1 16/120 bar/°C Reserved Imp. Dia. :0.89 5.78 (in.) QR code Made in Hungary Example of NB, NBG nameplate Pos. Description Type designation Identification code 92656450 Product number 00000001 Serial number Production site code Production year and week 2015... - Page 7 2.2.2 Type key, NB, NBG Example 1: NBE 100-160/160-142BSASF1AESBAQERW1 Example 2: NBGE 200-150-315.2/317ACAEF3KFSDAQFYW1 Example 3: NBG 100-65-200/219SAAEF2KESBQQEKX4 Example 4: NB 80-200/222VAXEF1BESBQQEWX2 Pos. 10 11 12 13 14 16 17 18 Example 1 -160 /160-142 BAQE R W 1 Example 2 NBGE 200 -150 -315.2...
- Page 8 Pos. Explanation Code for pump version; the codes may be combined A: Basic version B: Oversize motor C: Without motor D: Pump housing with feet (+E): With ATEX approval, certificate or test report, the second character of the code for pump version is an E F: Design with base frame (+S): With support blocks, the second character of the pump version code is an S...
- Page 9 Pos. Explanation Code for materials Code Pump housing Impeller Wear ring Shaft EN-GJL-250 EN-GJL-200 Bronze/brass 1.4301/1.4308 EN-GJL-250 EN-GJL-200 Bronze/brass 1.4462 EN-GJL-250 Bronze CuSn10 Bronze/brass 1.4301/1.4308 EN-GJL-250 Bronze CuSn10 Bronze/brass 1.4462 EN-GJL-250 EN-GJL-200 Bronze/brass 1.4401 EN-GJL-250 Bronze CuSn10 Bronze/brass 1.4401 EN-GJL-250 EN-GJL-200 EN-GJL-250 1.4301/1.4308...
- Page 10 Pos. Explanation Rubber parts in pump E: EPDM ® F: FXM (Fluoraz ® K: FFKM (Kalrez M: FEPS (PTFE-sheathed silicone O-ring) O: HNBR ® V: FKM (Viton Shaft seal arrangement S: Single seal Shaft seal in pump Letter code for mechanical shaft seal and shaft seal rubber parts. See Letter codes for shaft seals. Code for rated motor power [kW].
- Page 11 4 kW (3.7 hp) motor, US DOE regulated motor, pole, 50 Hz. 4-pole, 60 Hz. Example 2: NBGE Example 4: NB 200-150-315.2/317ACAEF3KFSDAQFYW1 shows 80-200/222VAXEF1BESBQQEWX2 shows an NB an NBGE 200-150-315.2 pump with these 80-200 pump with these characteristics: characteristics: • 222 mm super vortex impeller •...
- Page 12 FFKM and static O-rings in PTFE For a thorough description of shaft seal types and materials, see the data booklet "NB, NBG, NK, NKG, NBE, NBGE, NKE, NKGE - Custom-built pumps according to EN 733 and ISO 2858". Value in bracket is for the standard IEC motor size. Value outside bracket is for the motor size according to NEMA 2.2.2.2 Codes for rated motor power...
- Page 13 2.2.2.3 Codes for phase and voltage or other 2.2.3 Type key, MTB information Pos. 17 in NB, NBG type key example. Example of type key: MTB 65-200/199A-F-ABQQE Pos. 5 6 7 Code Description Code MTB -200 /199 A F A BQQV...
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Page 14: Receiving The Product
The pumps are supplied with a transport bracket pump meets the requirements of relevant standards. protecting the shaft seal during transport. When you Test certificates are available from Grundfos. mount the motor, follow the instructions and drawings as below. 3.2 Transporting the product 1. - Page 15 3. Fit and tighten the motor screws to the correct 5. Press down the threaded pipe to ensure that the torque. See below. shaft is in bottom position. • M8: 20 ± 4 Nm • M10: 40 ± 8 Nm •...
- Page 16 7. Apply Loctite 243 to the threads of the set screws. 1. Remove the coupling guard and loosen the set Tighten the set screws to the correct torque. screws in the shaft. • M5: 6 ± 2 Nm • M6: 8 ± 2 Nm •...
- Page 17 3. Fit and tighten the motor screws 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 •...
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Page 18: Location
The pump must be sited in a well-ventilated, but frost- free location. 4.2.1 Vertical installation, NB, NBG For inspection and repair, allow suitable clearances for pump or motor removal. • Pumps fitted with motors up to and including 4 kW require a 0.3 m clearance above the motor. - Page 19 1 m clearance above the motor to allow the use of lifting equipment. • NB pumps with base frame must have the same clearance as pumps with motors from 5.5 to 200 Motor and pump head removal Minimum clearance, X [mm]...
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Page 20: Mechanical Installation
5. Mechanical installation The pump must be installed according to national water regulations and standards. 5.1 Lifting the product Motors from 4 kW and up are supplied with lifting eyes which must not be used for lifting the entire pump unit. Weight: See label on the packing. -
Page 21: Installation Positions
• The minimum height of the foundation, indicated 5.3 Foundation of NB, NBG, MTB pump by h , can then be calculated by the following without base frame formula: m pump ×... -
Page 22: Foundation Of Nb, Nbg Pump With Base Frame
5.6.1 Elimination of noise and vibrations L f × B f × δ concrete 5.6.2 Vibration dampers Height of the foundation [m] 5.4 Foundation of NB, NBG pump with base frame Length of the foundation [m] Width of the foundation [m] This section applies only to 50 Hz pumps... - Page 23 • Grouting anchors are welded to the base frame. 19-32 mm (0.75 - 1.25 in) allowance • For NB, NBG pumps with 2-pole motors equal to for grout or bigger than 55 kW, grouting of the base frame Washer is mandatory in order to prevent vibration energy from the rotating motor and liquid flow to evolve.
- Page 24 5.4.1.2 Levelling the base frame 3. The number of steel bars depends on the size of the base frame, but we recommend that you Follow the steps below to level the base frame: distribute a minimum of 20 bars evenly over the 1.
- Page 25 6. Ensure proper shuttering at both ends of the base Pos. Description frame. Foundation with rough top Levelling wedges and shims left in place Grout 5-10 mm (0.2 - 0.4 in.) After installation is finished, tighten the screws connecting the flange, feet and the anchor bolts according to the tightening torques.
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Page 26: Pipes
5.5 Pipes 5.5.1 Pipe installation When installing the pipes, the pump housing must not be stressed by the pipes. The inlet and outlet pipes must be of an adequate size, taking the pump inlet pressure into account. The pipes must be installed in a way that air pockets are avoided, especially on the inlet side of the pump. -
Page 27: Vibration Damping
5.6 Vibration damping 5.5.2 Direct mounting in pipes 5.6.1 Elimination of noise and vibrations To ensure quiet operation, suspend the In order to achieve optimum operation and minimum pipes from suitable pipe hangers. noise and vibration, consider vibration damping of the pump. -
Page 28: Expansion Joints
5.6.2 Vibration dampers To prevent the transmission of vibrations to buildings, we recommend that you isolate the pump foundation from building parts by means of vibration dampers. This decision must be made by the customer or designer or consultant of the installation. The selection of the right vibration damper requires the following data: •... -
Page 29: Measuring Instruments
On all pumps, the diameters of the inlet and outlet flanges are different which results in different flow velocities at the two flanges. Consequently, the pressure gauge on the outlet flange will not show the pressure stated in the technical documentation, but a value which may be up to 1.5 bar or approximately 15 m of head lower. -
Page 30: Electrical Connection
The table below shows the numbers and sizes of The operating voltage and frequency are stated on cable entry holes of the terminal box of Grundfos MG the nameplate. Make sure that the motor is suitable motors according to the standard EN 50262. -
Page 31: Synchronous Motors
6.5 Frequency converter operation Pumps fitted with synchronous motors must be All three-phase motors can be connected to a connected to a Grundfos CUE frequency converter. 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 caused by voltage peaks. -
Page 32: Startup
7. Startup 7.2.2 Priming the product in inlet operation with non-return valve The inlet pipe and the pump must be filled with liquid Do not start the pump until it has been and vented before the pump is started. filled with liquid and vented. 1. -
Page 33: Checking The Direction Of Rotation
7.4 Starting up the pump 7.2.3 Priming the product in open systems where the liquid level is below the pump inlet 1. Fully open the isolating valve on the inlet side of 1. If an isolating valve is fitted on the inlet side of the the pump and leave the isolating valve on the pump, the valve must be fully open. -
Page 34: Shaft Seal Run-In Period
5. Check the overload by measuring the motor Maximum number of motor starts current consumption and comparing the value to per hour the rated current stated on the motor nameplate. Frame size Number of poles In case of overload, throttle the valve on the outlet side until the motor is no longer overloaded. -
Page 35: Storing The Product
Make sure that the bearings are filled with the toxic. If you request Grundfos to service the product, recommended grease to prevent moisture from contact Grundfos with details about the pumped liquid entering around the shaft. -
Page 36: Maintaining The Motor
11. Taking the product out of operation End suction pumps equipped with mechanical shaft seals are matched to the operating conditions for which the pump was sold. Observe the following 11.1 Protecting the pump during periods of precautions to avoid shaft seal damage and achieve inactivity and frost maximum shaft seal life. -
Page 37: Fault Finding The Product
12. Fault finding the product CAUTION Hot or cold surface DANGER Minor or moderate personal injury Electric shock ‐ When pumping hot or cold liquids, Death or serious personal injury make sure that persons cannot ‐ Before removing the terminal box accidentally come into contact with hot cover and before removing or or cold surfaces. - Page 38 Fault Cause Remedy a) The pump is blocked by Clean the pump. impurities. b) The pump is running above rated Set the duty point in accordance duty point. with the data sheet. c) The density or viscosity of the If less flow is sufficient, reduce the 2.
- Page 39 Fault Cause Remedy a) There is air in the inlet pipe or Vent the inlet pipe or the pump and pump. replenish. Increase the liquid level on the inlet side. Open the isolating valve in b) The inlet pressure is too low. the inlet pipe.
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Page 40: Technical Data
13. Technical data sea level at an ambient temperature of 75 °C, the motor must not be loaded more than 88 % x 78 % = 68.6 % of the rated output. 13.1 Operating conditions 13.1.2 Liquid temperature 13.1.1 Ambient temperature and altitude Liquid temperature: -40 to +140 °C Do not exceed the allowable maximum The maximum liquid temperature is stated on the... - Page 41 Operation against a closed • www.grundfos.com valve gives the highest operating pressure. The NB pumps comply with IEC 60335-2-51 if the maximum inlet pressure is equal to or less than 1.2 MPa (12 bar). 13.1.6 Minimum flow rate...
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Page 42: Electrical Data
13.1.8 Shaft seals We do not recommend that you operate The operating range of the seals is described for two the pump at maximum temperature and main applications: Pumping of water or pumping of maximum pressure at the same time as coolants. -
Page 43: Sound Pressure Level
13.3 Sound pressure level Maximum sound pressure level The data in this table applies for pumps including [dB(A)] - ISO 3743 Motor [kW] motor, such as MG, MMG and Siemens motors. Three-phase motors The values stated are maximum sound pressure 2-pole 4-pole 6-pole... -
Page 44: Disposing Of The Product
1. Use the public or private waste collection 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 waste. - Page 45 Appendix A A.1. 中国 RoHS 产品中有害物质的名称及含量 有害物质 部件名称 铅 汞 镉 六价铬 多溴联苯 多溴联苯醚 (Pb) (Hg) (Cd) (Cr6+) (PBB) (PBDE) 泵壳 紧固件 管件 定子 转子 本表格依据 SJ/T 11364 的规定编制 O：表示该有害物质在该部件所有均质材料中的含量均在 GB/T 26572 规定的限量要求以下。 X： 表示该有害物质至少在该部件的某一均质材料中的含量超出 GB/T 26572 该规定的限量要求。 该产品环保使用期限为 10 年，标识如左图所示。 此环保期限只适用于产品在安装与使用说明书中所规定的条件下工作...
- Page 46 Appendix B B.1. Flange forces and torques Flange forces and torques Force [N] Torque [N-m] Cast iron flanges Diameter DN ΣF ΣM 1155 1383 1173 1050 1838 Horizontal 1120 1383 1243 2170 1068 pump, x-axis, inlet 1418 1750 1575 2643 1278 port 1890...
- Page 47 Force [N] Torque [N-m] Cast iron flanges Diameter DN ΣF ΣM 1155 1383 1050 1173 1838 1243 1120 1383 2170 1068 Horizontal pump, x-axis, 1575 1418 1750 2748 1278 outlet port 2100 1890 2345 3658 1138 1680 2980 2700 3340 5220 1260 1460...
- Page 48 7175 8260 10115 14910 ΣF and ΣM are vector sums of the forces and torques If not all loads reach the maximum permissible value, one of the values is allowed to exceed the normal limit. Contact Grundfos for further information.
- Page 49 Argentina Columbia Hong Kong Bombas GRUNDFOS de Argentina S.A. GRUNDFOS Colombia S.A.S. GRUNDFOS Pumps (Hong Kong) Ltd. Ruta Panamericana km. 37.500industin Km 1.5 vía Siberia-Cota Conj. Potrero Unit 1, Ground floor, Siu Wai industrial 1619 - Garín Pcia. de B.A.
- Page 50 Lithuania Serbia Turkey GRUNDFOS Pumps UAB Grundfos Srbija d.o.o. GRUNDFOS POMPA San. ve Tic. Ltd. Smolensko g. 6 Omladinskih brigada 90b Sti. LT-03201 Vilnius 11070 Novi Beograd Gebze Organize Sanayi Bölgesi Tel.: + 370 52 395 430 Tel.: +381 11 2258 740...
- Page 51 96483177 03.2024 ECM: 1391025 www.grundfos.com...