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Related Manuals for Ruhrpumpen VAF
Summary of Contents for Ruhrpumpen VAF
- Page 1 Installation, Operation and Maintenance Manual...
- Page 2 Ruhrpumpen as VAF. The impeller is designed to operate submerged in liquid, eliminating the need to prime the pump before operation. VAF pump units exist in two basic configurations based on lubrication: lubrication by the same pumped liquid or oil lubrication.
- Page 3 Care must also be taken to prevent ignition of flammable fluids or other material. Information in this manual is believed to be reliable, but it is not guaranteed by Ruhrpumpen as to its completeness or accuracy. © 2020 Ruhrpumpen All Rights Reserved.
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Page 4: Table Of Contents
Vertical Wet Pit Axial Flow Pump CONTENTS 1. PRODUCT DESCRIPTION ........................7 1.1 INTRODUCTION ..........................7 1.2 PUMP BOWLS AND IMPELLER ......................8 1.2.1 Pump Bowls ..........................8 1.2.2 Impeller ............................ 8 1.3 SUCTION BELL ..........................8 2. SAFETY..............................9 2.1 IDENTIFICATION OF SAFETY INSTRUCTIONS IN THE OPERATING MANUAL ........ - Page 5 Vertical Wet Pit Axial Flow Pump 4.3.1 Two Crane Method ......................... 19 4.3.2 One Crane Method ......................... 20 4.4 INSTALLATION ..........................22 4.4.1 Discharge Line ........................23 5. PIPING ..............................24 5.1 PIPING THE SYSTEM ........................25 5.2 IMPELLER LIFT ..........................27 5.2.1 Propeller Pumps ........................
- Page 6 Vertical Wet Pit Axial Flow Pump 10. PARTS INFORMATION ........................44 11. TROUBLESHOOTING CHART......................46 V1.043020...
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Page 7: Product Description
Ruhrpumpen as VAF. The impeller is designed to operate submerged in liquid, eliminating the need to prime the pump before operation. VAF pump units exist in two basic configurations based on lubrication: lubrication by the same pumped liquid or oil lubrication. -
Page 8: Pump Bowls And Impeller
Vertical Wet Pit Axial Flow Pump • • Head • Capacity • Impeller diameter Please provide the pump serial number when ordering parts; the information in the nameplate is relevant in some sections of this manual to ensure safe operation of this pump. 1.2 PUMP BOWLS AND IMPELLER 1.2.1 Pump Bowls Manufactured in cast iron, pump bowls drive and direct the fluid from the impeller up to the... -
Page 9: Safety
The responsibilities and supervision of the personnel must be exactly defined by the plant operator. If the staff does not have the necessary knowledge, they must be trained and instructed. Training may be performed by a Ruhrpumpen representative on behalf of the plant operator. V1.043020... -
Page 10: Hazards In The Event Of Non-Compliance With The Safety Instructions
Vertical Wet Pit Axial Flow Pump Moreover, the plant operator is to make sure that the contents of the operating manual are fully understood by the personnel. 2.3 HAZARDS IN THE EVENT OF NON-COMPLIANCE WITH THE SAFETY INSTRUCTIONS Non-compliance with the safety instructions may produce a risk to the personnel as well as to the environment and the unit and results in loss of any right to claim damages. -
Page 11: Safety Instructions Relevant For Maintenance, Inspection And Assembly Work
Modifications may be made to the machine only after consultation with a Ruhrpumpen representative. Using spare parts and accessories authorized by Ruhrpumpen is in the interest of safety. The use of parts not authorized by the dealer exempt the manufacturer from any liability, voiding the warranty. -
Page 12: Transport & Storage
Handle all equipment carefully. Remove unit only by properly supporting the wooden shipping skid. After unloading, inspect the pump, check the shipment against the packing list, and report damages or shortages immediately to freight carrier and to the designated Ruhrpumpen representative. 3.3 TRANSPORT ... -
Page 13: Storing
Vertical Wet Pit Axial Flow Pump When transporting with a crane, use a goal-like accessory and sling two ropes around the balancing points of the pump, as the figure shown below, and carefully lift it. Figure 3.1. Correct position of the lifting ropes or chains, side view. 3.4 STORING Storing any pump for any length of time presents a few challenges. -
Page 14: Long Term Storage (Longer Than Six Months)
Vertical Wet Pit Axial Flow Pump should remain inside its shipping container. Furthermore, the pump unit (pump, driver, etc.) should not be subject to sudden temperature changes or vibrations. 3.4.2 Long Term Storage (Longer than Six Months) For long term storage each part of the pump should be individually prepared. Comply with the following steps: Remove pump from shipping skids and supports, but do not damage them because the unit is to be placed in them again. -
Page 15: Motor (Driver) Storage
Return the unit to the shipping crate. When the pump is to be installed, remove all the protective coatings and desiccant or drain all oils. One month before installation, a Ruhrpumpen representative should be employed to conduct a final inspection. 3.4.3 Motor (Driver) Storage To properly store the motor (driver) for periods longer than one month, follow the manufacturer’s... -
Page 16: Conservation
Vertical Wet Pit Axial Flow Pump o If none are available, single phase or “trickle” heating may be utilized by energizing one phase of the motor’s windings with a low voltage, producing heat in the winding conductor. Request the required voltage and transformer capacity from the driver manufacturer. - Page 17 Vertical Wet Pit Axial Flow Pump Anticorrosive layers inside the pump housing must be removed with process neutral solvents before commencing pump operation. When removing the protective coating with a neutral solvent, follow the safety instructions of the solvent manufacturer carefully. ...
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Page 18: Installation
NOTE: The information in this section is intended as a general guideline. For further information refer to the corresponding section in API Recommended Practices 686. IMPORTANT: The design of foundations is not the responsibility of Ruhrpumpen. It is therefore recommended that the customer consult a competent specialist skilled in the field of foundations, to insure proper design/installation of the foundation. -
Page 19: Lifting Pump To A Vertical Stance
Vertical Wet Pit Axial Flow Pump Leveling pieces, such as shims or wedges. Fixed crane, tripod or common crane with hoisting chain or similar accessory that has a hook and rotatory link and enough carrying capacity to handle the pump’s total weight. 4.3 LIFTING PUMP TO A VERTICAL STANCE In order to lift the pump to a vertical stance for installation purposes, follow one of these two options:... -
Page 20: One Crane Method
Vertical Wet Pit Axial Flow Pump Figure 4.2 Tilting the pump towards a vertical stance using the two crane method. Once the pump is in a vertical stance, the rope or sling attached near the pump´s case may be released and the rest of the transportation can be carried out using only one the crane attached to the lifting lugs on the pump´s plate. - Page 21 Vertical Wet Pit Axial Flow Pump Figure 4.3 Attaching rope or sling to the pump to lift it using the one crane method. With the pump still in the wooden support skid, begin raising the top end of the pump with the crane, using the wooden support skid as a pivot, to tilt the pump into a vertical stance, as shown below: Figure 4.4 Tilting the pump into a vertical stance using the one crane method.
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Page 22: Installation
Vertical Wet Pit Axial Flow Pump 4.4 INSTALLATION Before starting the installation it is recommended to hire an electrician to connect the motor after the installation. WARNING: Residues and loose materials must be taken out of the well before installing the pump. -
Page 23: Discharge Line
Vertical Wet Pit Axial Flow Pump To hold the shaft and tube in alignment and prevent vibration, the tube must be under tension. The tube tension nut must be threaded into position, and then tightened ½ to 1 turn to place the tube in tension. The actual amount will vary according to the tube size and length. -
Page 24: Piping
Vertical Wet Pit Axial Flow Pump 5. PIPING These units are furnished for a specific service condition. Any change in the hydraulic system may affect the pump performance adversely. The connection of the piping must be carried out with utmost care; otherwise, the pumping medium can escape during operation, which can seriously endanger the operating personnel. -
Page 25: Piping The System
API Recommended Practices 686. IMPORTANT: The design of piping and related systems is not the responsibility of Ruhrpumpen. It is, therefore recommended that the customer consult a competent specialist skilled in the field of piping to insure proper design/installation of all the piping. - Page 26 Vertical Wet Pit Axial Flow Pump Disconnect the piping from the pump if you heat one side of the pipe to align the pipe to the pump. Pump and pipe flanges must be parallel; they should mate together without effort, and with the bolt holes properly in line.
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Page 27: Impeller Lift
Correctly performing the impeller lift procedure is crucial to a vertical pump´s optimal performance, since an incorrect impeller lift can cause a decrease in the pump´s efficiency and even damage to the pump. In case of any doubts, contact a Ruhrpumpen representative. V1.043020... -
Page 28: Lubrication
6.2 ENCLOSED LUBRICATION 6.2.1 Oil Lubrication All standard VAF pumps are equipped with oil reservoirs and either manual or automatic solenoid operated drip feeders with allow oil to enter the shaft enclosing tube and lubricate each lineshaft bearings and finally the top discharge bowl bearing. The suction bell bearing is lubricated with waterproof grease from the factory and it is capable of optimal operation for several years. -
Page 29: Driver Lubrication
Vertical Wet Pit Axial Flow Pump All the lineshaft and pump bowl bearings are grease lubricated from the surface using a system consisting of a grease reservoir, hand pump, indicating stems, valves and individual lines to each bearing. One operating cycle will charge each bearing with a measured amount of grease, as shown in the indicating stems. -
Page 30: Operation
Install a bypass. Should conditions arise which require greater head, contact Ruhrpumpen for recommendations. 7.1 PRIMING Since VAF pumps are submerged in the same fluid they pump, no special priming procedure is required. 7.2 STARTUP Every time before the pump is started up the safety devices must be mounted and fastened. - Page 31 Vertical Wet Pit Axial Flow Pump WARNING: Operating the pump with a closed discharge valve can result in excessive heat build-up and should be limited to the shortest practical duration. Operating the pump close to shut-off head usually places greater bending strains on the shaft than at operating points near the best efficiency point.
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Page 32: Packing Strips And Packing Gland Tightening Procedure
Vertical Wet Pit Axial Flow Pump Verify that the impellers have been properly adjusted during installation and that the driver and pump shafts turn without problem. For open shaft pumps, lubricate the shaft injecting the pumped fluid during 3 minutes for pumps whose shaft length is up to 40 ft. - Page 33 If overheating is detected and the temperature in any of these components is higher, check that the pump is well lubricated and contact Ruhrpumpen for support. If the pump is equipped with a flush line valve, it must be used to adjust the flow towards the packing strips.
- Page 34 Vertical Wet Pit Axial Flow Pump If the packing gland has been fully tightened (it will not advance any further) and the leakage is still greater than the approved rate, the packing gland must be removed and the packing strips installation order and the position of the lantern ring must be checked.
- Page 35 Vertical Wet Pit Axial Flow Pump • Packing gland Optional characteristics may include: • Deflector • Stuffing box basin V1.043020...
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Page 36: Operating Check
To monitor flow, pressure, temperature, and lubrication, regular visual inspection and monitoring is advisable and/or necessary during operation. Ruhrpumpen recommends checking the pump constantly at regular intervals in order to detect problems early, in case they arise. The operational check routine must include at least the following points: ... -
Page 37: Stopping
Vertical Wet Pit Axial Flow Pump b. If leakage is excessive, switch the pump off as quickly as possible, isolate the pump by closing the discharge and suction valves or by using some other approved method designated as safe for your system, and check the rotating seal ring and the stationary seal ring. -
Page 38: Short-Term Shutdown
Vertical Wet Pit Axial Flow Pump 7.5 SHORT-TERM SHUTDOWN If the pump was switched off correctly and has not suddenly come to a halt, it may be re-started without the need to take any special measures. If the pump comes to a sudden halt, or if the pump was switched off because of a possible danger, it must be checked for damage. -
Page 39: Maintenance
IMPORTANT: For any component/accessory that has not been manufactured by Ruhrpumpen and is part of the pump’s equipment, a complete reading of said component/accessory manufacturer’s manual must be carried out for further information on proper maintenance procedures and relevant safety warnings. - Page 40 Vertical Wet Pit Axial Flow Pump When disassembling the pump, match mark, tag or otherwise identify all parts, and provide separate containers for small parts. Refer to the sectional drawing of the pump included in SECTION TEN - PARTS INFORMATION for the correct identification of the parts. Depending on the type of shaft the driver is furnished with, follow one of the following options: a.
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Page 41: Inspection And Cleaning
Thoroughly clean all parts and dry with compressed air or a clean, lint free cloth. Inspect all components for corrosion, erosion, pitting, and scoring. If required, replace with Ruhrpumpen O.E.M. genuine replacement parts. Visual check all individual parts for any damage. - Page 42 Vertical Wet Pit Axial Flow Pump Depending on the type of shaft the driver is furnished with, follow one of these options: a. Solid shaft drivers: Place the corresponding bolts on the motor coupling. b. Hollow shaft drivers: Place the adjusting nut on the upper end of the shaft and then place the cover on top of the motor.
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Page 43: Spare Parts
Vertical Wet Pit Axial Flow Pump 9. SPARE PARTS The required stock of recommended spare parts will vary depending on the severity of the operating conditions, the extent of the anticipated field maintenance and the number of units installed. A minimum of one spare part of each moving part should be in stock, as well as a complete set of bearings and seals. -
Page 44: Parts Information
Vertical Wet Pit Axial Flow Pump 10. PARTS INFORMATION DETAIL A DETAIL B Figure 10.1 VAF Pump Sectional Drawing. V1.043020... - Page 45 Vertical Wet Pit Axial Flow Pump Parts List VAF Pump. ITEM DESCRIPTION ITEM DESCRIPTION DISCHARGE BOWL WEAR RING SUCTION BELL RETAINING RING BASKET STRAINER LINESHAFT BEARING DRIVE SUPPORT 545.1 SUCTION BELL BEARING NOZZLE HEAD 545.2 DISCHARGE BOWL BOTTOM BEARING PUMP SHAFT 545.3...
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Page 46: Troubleshooting Chart
SUGGESTED SOLUTION a. Inner pump parts are a. Change worn parts. worn. b. Consult a Ruhrpumpen dealer. b. Density or viscosity of c. Apply correct voltage to the motor. pumped fluid is not d. Check the cables, connections and fuses. - Page 47 Install vent valve or lay piping elsewhere. plugged. j. Change worn parts. CAPACITY OR i. Formation of air pockets k. Consult a Ruhrpumpen dealer. DISCHARGE in the piping. l. Apply correct voltage to the motor. PRESSURE LOW j. Inner pump parts are m.
- Page 48 Vertical Wet Pit Axial Flow Pump RUHRPUMPEN PLANTS USA, Tulsa & Orland MEXICO, Monterrey BRAZIL, Río De Janeiro ARGENTINA, Buenos Aires GERMANY, Witten EGYPT, Suez INDIA, Chennai CHINA, Changzhou UK, Lancing V1.043020 V1.043020...
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