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Table of Contents
Related Manuals for Grundfos CVM
Summary of Contents for Grundfos CVM
- Page 1 GRUNDFOS INSTRUCTIONS CVM, CHM Installation and operating instructions...
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Page 2: Table Of Contents
English (GB) Installation and operating instructions Original installation and operating instructions The use of this product requires experience with and These installation and operating instructions describe CVM and knowledge of the product. Persons with reduced CHM pumps. physical, sensory or mental capabilities must not use... -
Page 3: Receiving The Product
3. Level the pump shaft, flanges, and base plate using a spirit level, adjusting the wedges or shims, as required. Note that 3. Installing the product CVM pumps do not require alignment. 4. Make sure that the pipes can be aligned to the pump flanges 3.1 Location without placing any strain on either flange. -
Page 4: Mechanical Installation
• During pumping operation, the valves on the inlet line must 3.4 Mechanical installation always be fully open. 3.4.1 Pipes • Install properly sized pressure gauges in the tapped holes on the pump inlet and outlet flanges. Do not let the pump support the pipes. Use pipe Pressure gauges will enable the operator to monitor the pump hangers or other supports at proper intervals to performance and determine whether the pump conforms to the... -
Page 5: Electrical Connection
3.4.4 Mechanical shaft seals Mechanical shaft seals require no maintenance or adjustment. CVM and CHM pumps equipped with mechanical shaft seals are matched to the operating conditions for which the pump was sold. Observe the following precautions to avoid shaft seal damage and to obtain maximum shaft seal life: Do not run the pump dry or against a closed valve. -
Page 6: Starting Up The Product
Do not operate the product above the nameplate conditions. This may damage the product. Operating Action conditions Make the following inspections before starting your CVM or CHM 2-, 4- and 6-pole pump: Ensure that the non-drive-end motor motors, frame size bearing is electrically isolated. -
Page 7: Motor Direction Of Rotation
6.1 Applications wrong. Grundfos CVM and CHM pumps are intended for use in the After the product has been wired and checked to ensure that all following applications: components in the system, such as disconnect devices, magnetic •... -
Page 8: Pump Identification
Operating 8 hours per day, normal or light load, clean air, 37 °C 6.3.2 Type key maximum ambient temperature. Example CVM 5/ 4- B10 (R) H 55 4 Severe conditions: Operating continuously 24-hours, shock loads or vibrations, poor Type ventilation, 37-65 °C ambient temperature. -
Page 9: Disassembling The Pump
Complete disassembly instructions are outlined below. Proceed 7.2.2 Lubricating the pump only as far as required to perform the maintenance work needed. CVM pump bearings are water lubricated and do not require 1. Switch off the power supply. grease. 2. Drain the system. - Page 10 7.3.4 CVM component inspection 7.3.6 Reassemble CHM pump While the pump is disassembled, all components must be 1. All parts must be clean before reassembly. inspected for wear, damage, deterioration or erosion. 2. Connect the balance hub (b4) on the pump shaft (f1).
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Page 11: Cvm, Sectional Drawing And Parts List
7.4 CVM, sectional drawing and parts list CVM pump construction Fig. 7 Pos. Description Pos. Description Pos. Description Shaft Balancing drum Sleeve key Bottom sleeve Balance sleeve Washer Middle sleeve Mechanical seal Sleeve bearing Seal cap Connection seat Base Coupling... -
Page 12: Chm, Sectional Drawing And Parts List
7.5 CHM, sectional drawing and parts list CHM pump construction Fig. 8 Pos. Description Pos. Description Pos. Description Plug pipe Slinger O-ring Lip seal Bearing frame Seal assembly Round nut Bolt Connector Bearing cover Connection seat Seal cap Bearing sleeve Plug pipe Bolt Paper gasket... -
Page 13: Chm Pump With Sleeve Bearings
7.6 CHM pump with sleeve bearings Sleeve bearing Sleeve bearing CHM pump with sleeve bearings Fig. 9 Fourth stage Fifth stage Sixth stage Seventh stage Pump type With sleeve bearing Guide vane Guide vane Guide vane Guide vane CHM 5/8 ●... -
Page 14: Taking The Product Out Of Operation
8. Taking the product out of operation The following shutdown procedures will apply for the CVM pumps in most normal shutdown situations. If the pump will be out of operation for a long time, follow the storage procedures in section 8.3 Long-term... -
Page 15: Fault Finding The Product
9. Fault finding the product DANGER Electric shock Death or serious personal injury - Before starting any work on the product, make sure that the power supply has been switched off and that it cannot be accidentally switched on. CAUTION Toxic material Minor or moderate personal injury - Wash down the pump before doing any work on it. - Page 16 The hydraulic parts are worn or damaged. Repair or replace the worn parts. m) There is excessive clearance between the See section 7.3.4 CVM component inspection. wear surfaces. 5. The pump loses its prime after a) Joints or the stuffing box are leaking.
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Page 17: Technical Data
10.1.1 Flow rate 1. Use the public or private waste collection service. 2. If this is not possible, contact the nearest Grundfos company Minimum flow rate or service workshop. The pump must not run against a closed outlet valve as this will cause an increase in temperature or formation of steam in the pump. - Page 19 GRUNDFOS Pumps (Hong Kong) Ltd. Turkey BOMBAS GRUNDFOS DO BRASIL Unit 1, Ground floor Norway GRUNDFOS POMPA San. ve Tic. Ltd. Sti. Av. Humberto de Alencar Castelo Branco, Siu Wai Industrial Centre GRUNDFOS Pumper A/S Gebze Organize Sanayi Bölgesi 29-33 Wing Hong Street &...
- Page 20 99572453 0219 ECM: 1254211 www.grundfos.com...