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Volute
Centrifugal Pump
Original Operating Manual
Version
BA-2015.09.18
Print-No.
300 404
TR MA DE Rev002
Series
NM
NMB
NMXH
ASV Stübbe GmbH & Co. KG
Hollwieser Strasse 5
32602 Vlotho
Germany
Phone: +49 (0)5733-799-0
Fax: +49 (0)5733-799-5000
Email: contact@asv-stuebbe.de
Internet: www.asv-stuebbe.de
We reserve the right to make technical changes.
Read carefully before use.
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Summary of Contents for Stübbe NM Series
- Page 1 Volute Centrifugal Pump Original Operating Manual Series NMXH Version BA-2015.09.18 ASV Stübbe GmbH & Co. KG Print-No. 300 404 Hollwieser Strasse 5 TR MA DE Rev002 32602 Vlotho Germany Phone: +49 (0)5733-799-0 Fax: +49 (0)5733-799-5000 Email: contact@asv-stuebbe.de Internet: www.asv-stuebbe.de We reserve the right to make technical changes. Read carefully before use.
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Page 2: Table Of Contents
Table of contents Table of contents ....... 5 Connecting the pipes . - Page 3 Table of contents 9.2.4 Flange tightening torques ....38 9.2.5 Tightening torques of casing screws ..38 9.2.6 Gap size .
- Page 4 Table of contents List of figures List of tables Fig. 1 Type plate (example) ......9 Tab. 1 Other applicable documents, purpose and where found .
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Page 5: About This Document
About this document About this document Other applicable documents This manual • Is part of the equipment • Applies to the aforementioned pump series Document/purpose/ Where found • Describes safe and appropriate operation during all oper- ating phases ATEX additional manual (300 364) •... -
Page 6: Warnings And Symbols
About this document Warnings and symbols Symbol Meaning • Immediate acute risk • Death, serious bodily harm • Potentially acute risk • Death, serious bodily harm • Potentially hazardous situation • Minor injury • Potentially hazardous situation • Material damage Safety warning sign Take note of all information highlighted by the safety warning... -
Page 7: General Safety Instructions
General safety instructions General safety instructions The manufacturer does not accept any liability for any dam- • When using auxiliary plant systems: age caused by disregarding any sections of the entire doc- – Ensure compatibility of the operating medium with the umentation. -
Page 8: Operator's Obligations
General safety instructions 2.2.2 Operator's obligations 2.2.3 Obligations of personnel • All directions given on the pump must be followed (and kept Safety-conscious operation legible), e.g. the arrow indicating the sense of rotation and • Only operate the pump if it is in perfect technical condition the markings for fluid connections. -
Page 9: Layout And Function
Layout and function Layout and function Labels Description • NM: Standard pump 3.1.1 Type plate – Horizontal, single-stage, non self-priming pump with single flow volute casing and free shaft end. – Optionally available complete with coupling and drive motor, mounted on a base plate. ASV Stübbe GmbH &... -
Page 10: Layout
Layout and function Layout Fig. 3 Layout Shaft Suction branch Discharge flange Mechanical seal Support foot Bearing casing Pump casing Shaft seals Only one of the following shaft seals can be used. 3.4.1 Mechanical seals Mechanical seals have a function-related leak. •... -
Page 11: Auxiliary Systems
Layout and function 3.4.2 Auxiliary systems Sealing systems Only one of the following sealing systems can be used. Quenching When quenching, the pressure of the pumped medium is greater than the pressure of the sealing medium. The seal surfaces are lubricated by the pumped medium. Examples of use: •... -
Page 12: Transport, Storage And Disposal
Transport, Storage and Disposal Transport, Storage and Disposal Transport Weight specifications (→ documents for the particular order). 4.1.1 Unpacking and inspection upon delivery 1. Unpack the pump/pump assembly upon delivery and inspect it for transport damage. 2. Check completeness and accuracy of delivery. 3. -
Page 13: Storage
Transport, Storage and Disposal Storage NOTE Material damage due to inappropriate storage! Store the pump properly. 1. Seal all openings with blind flanges, blind plugs or plastic covers. 2. Make sure the storage room meets the following condi- tions: – –... -
Page 14: Installation And Connection
Installation and connection Installation and connection For pumps in potentially explosive atmospheres (→ ATEX 5.1.3 Prepare foundation and surface additional manual). Aids, tools, materials: – Steel shims – Spirit level NOTE Installation options: Material damage due to distortion or passage of electrical –... -
Page 15: Installing With Foundation
Installation and connection Installing with foundation 5.2.2 Attaching pump unit Filling the base plate with mortar casting compound improves dampening properties. NOTE Material damage due to distortion of base plate. 1. Fill the anchoring holes with mortar casting compound. Position the base plate as follows on the foundation and 2. -
Page 16: Installing Motor
Installation and connection Installing motor Planning the pipes Only necessary if the pump unit is first assembled on site. Water hammers may damage the pump or the system. Plan the pipes and fittings as far as possible to prevent water hammers occurring. 5.4.1 Specifying supports and flange connections NOTE... -
Page 17: Specifying Pipe Lengths
Installation and connection 5.4.3 Specifying pipe lengths 5.4.6 Discharging leaks WARNING Risk of injury and poisoning due to hazardous pumped liquids! Safely collect any leaking pumped liquid, then discharge and dispose of it in accordance with environmental regula- tions. 1. Provide equipment for collecting and discharging leaking liquids. -
Page 18: Connecting The Pipes
Installation and connection Connecting the pipes Electrical connection NOTE DANGER Material damage due to excessive forces and torques on Risk of death due to electric shock! the pump. All electrical work must be carried out by qualified electri- Ensure pipe connection without tension. cians only. -
Page 19: Aligning The Coupling Precisely
Installation and connection Aligning the coupling precisely 3. Check the gap size with feeler gauge (2): – Permitted dimension (→ 9.2.6 Gap size, Only necessary for versions with coupling. Page 38). – Measure size of the gap between the coupling halves using feeler gauge (A). -
Page 20: Operation
Operation Operation For pumps in potentially explosive atmospheres (→ ATEX 6.1.4 Check direction of rotation additional manual) DANGER Preparing for commissioning Danger to life from rotating parts. Use personal protective equipment when carrying out any work on the pump. 6.1.1 Checking downtimes Maintain an adequate distance from rotating parts. -
Page 21: Commissioning
Operation Commissioning 5. Make sure temperature change is smaller than 5 K/min for pumps with hot fluids. 6.2.1 Switching on 6. After the initial stress due to the pressure and operating temperature, check that the pump is not leaking. Pump set up and connected properly Motor set up and connected properly 6.2.2 Switching off... -
Page 22: Shutting Down The Pump
Operation Shutting down the pump Take the following measures whenever the pump is shut down: DANGER Pump is Action Risk of injury from running pump! shut down Take measures appropriate for the fluid (→ Table 6 Measures Do not touch the running pump. depending on the behavior of Do not carry out any work on the running pump. -
Page 23: Restoring The Pump To Service
Operation Restoring the pump to service 1. Complete steps commissioning (→ 6.2 Commissioning, Page 21). 2. If the pump is shut down for over 1 year, replace elastomer seals (O-rings, shaft sealing rings). Operating the stand-by pump Stand-by pump filled and bled Operate the stand-by pump at least once a week. -
Page 24: Maintenance
Maintenance Maintenance For pumps in potentially explosive atmospheres (→ ATEX Maintenance additional manual). DANGER Trained service technicians are available for fitting and repair work. Submit evidence of conveyed medium on Risk of injury from running pump! request (DIN safety data sheet or safety certificate). Do not touch the running pump. -
Page 25: Maintenance In Accordance With Maintenance Schedule
Maintenance 7.2.1 Maintenance in accordance with main- tenance schedule Perform maintenance work in accordance with the mainte- nance schedule. Designation Interval Maintenance Pump assembly daily Check for increased noise development. Check for vibration. Pay attention to increased current consumption of the motor. Check that the anchor bolts are correctly seated. -
Page 26: Dismounting
Maintenance Dismounting NOTE Material damage due to incorrect dismounting/installation DANGER of the pump. Only specialist mechanics should complete dismounting/ Risk of injury due to running pump! installation work. Do not touch the running pump. Do not carry out any work on the running pump. 7.3.1 Preparations for dismounting Before all installation and maintenance work, discon-... -
Page 27: Disassembly Nm Nmb
Maintenance 7.3.2 Disassembly NM NMB 7.3.3 Disassemble NMXH Impeller fastening: Clockwise thread. 1. Unscrew hexagon head bolt (901.7). 2. Remove washers (554.11). 3. Remove spring rings (934.7). Shaft protection sleeves with locking pin can be pulled off 4. Pull out impeller unit from the back of the volute casing. the shaft by hand. -
Page 28: Installing
Maintenance Installing 1. When installing please observe: – Replace worn parts with genuine spare parts. Install components concentrically and without tilting in – Replace seals, inserting them in such a way that they accordance with the markings applied. are unable to rotate. –... -
Page 29: Troubleshooting
Troubleshooting Troubleshooting For pumps in potentially explosive atmospheres (→ ATEX additional manual). If faults occur which are not specified in the following table or cannot be traced back to the specified causes, please consult the manufacturer. Possible faults are identified by a fault number in the table below. - Page 30 Troubleshooting Fault number Remedy Cause – – – – – Temperature of fluid is too high: pump is Increase pump inlet pressure. cavitating Lower temperature. Contact the manufacturer. – – – – – Viscosity or specific gravity of the pumped Consult the manufacturer.
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Page 31: Troubleshooting List
Troubleshooting Fault number Remedy Cause – – – – Impeller out of balance or blocked Dismount the pump and inspect it for dry-running damage. Clean the impeller. – – – – – Hydraulic parts of the pump dirty, clotted or Dismount the pump. -
Page 32: Appendix
Appendix Appendix Part no. Designation Replacement parts 554.4 Disc 9.1.1 Series NM 554.5 Disc 554.6 Disc Part no. Designation 554.7 Disc 102.1 Volute casing 566.1 Round head grooved pin 153.1 Suction branch 580.1 Hexagon protecting cap 155.1 Reinforced casing 636.1 Ball-type lubricating nipple 156.1 Discharge flange... - Page 33 Appendix Fig. 11 Sectional drawing 300 404 BA-2015.09.18 NM NMB NMXH...
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Page 34: Series Nmb
Appendix 9.1.2 Series NMB Part no. Designation 901.4 Hexagon head bolt Part no. Designation 902.1 Stud bolt 102.1 Volute casing 902.2 Stud bolt 153.1 Suction branch 902.3 Stud bolt 155.1 Reinforced casing 903.1 Plug screw 156.1 Discharge flange 914.1 Cylinder screw 161.1 Housing cover 914.3... - Page 35 Appendix Fig. 12 Sectional drawing NMB 300 404 BA-2015.09.18 NM NMB NMXH...
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Page 36: Series Nmxh
Appendix 9.1.3 Series NMXH Part no. Designation 902.1 Stud bolt Part no. Designation 902.2 Stud bolt 155.1 Reinforced casing 902.3 Stud bolt 155.2 Reinforced casing 903.2 Screw plug 155.3 Reinforced casing 912.2 Drain set Drive shaft 914.2 Cylinder screw Impeller 914.4 Cylinder screw Impeller cap... - Page 37 Appendix 155.3 554.4 920.2 902.2 412.13 903.2 580.1 932.1 932.1 322.1 360.1 554.1 901.1 155.2 554.2 155.1 901.2 554.3 934.1 902.1 920.1 360.2 940.1 934.6 940.2 420.2 412.4 901.9 554.10 912.2 475.1 420.1 471.1 477.1 485 472.1 412.3 Fig. 13 Sectional drawing NMXH 300 404 BA-2015.09.18...
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Page 38: Technical Specifications
Appendix Technical specifications 9.2.5 Tightening torques of casing screws Further technical data (→ Data sheet). Size Metal con- Plastic con- Plastic con- nections nections nections with metal 9.2.1 Ambient conditions inserts Operation under any other ambient conditions should be agreed with the manufacturer. Tempera- Relative humidity [%] Setup... -
Page 39: Tab
Appendix 9.2.7 Lubricant Grease Temperature -35 to 140 0 to 140 range [°C] – Viscosity [mm 198 to 242 Product name • Aralub HL3 • Aralub, Degol BG 220 • Energrease • BP Energol, GR-XP 220 • Glissando • Falcon, CLP220 •... -
Page 40: Declaration Of Conformity In Accordance With Ec Machinery Directive
Appendix Declaration of conformity in accordance with EC machinery directive CE declaration of conformity We hereby declare under our sole responsibility that the products listed below Description Centrifugal pumps with mechanical seal NM, NMB, NMXH, SHB Solenoid pumps Eccentric pumps Type F, Type L Sump pumps ET, ETL, ETLB...
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