Ruhrpumpen SCE Installation, Operation And Maintenance Manual
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Ruhrpumpen SCE Installation, Operation And Maintenance Manual

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Summary of Contents for Ruhrpumpen SCE

  • Page 1 Installation, Operation and Maintenance Manual...
  • Page 2 Ruhrpumpen as a Renewed or Improved SCE. It is recommended that the services of a Ruhrpumpen installation technician be employed for the installation and initial starting of the pump. Such service will help to ensure the user that the equipment is properly installed, and will provide an excellent opportunity for the plant operator to receive useful tips and guidelines relative to the unit.
  • Page 3 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Information in this manual is believed to be reliable, but it is not guaranteed by Ruhrpumpen as to its completeness or accuracy. © 2023 Ruhrpumpen All Rights Reserved. V3.111623...

  • Page 4: Table Of Contents

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump INDEX 1. PRODUCT DESCRIPTION ........................7 1.1 INTRODUCTION ..........................7 1.2 PUMP CASE, IMPELLER, AND WEAR RINGS ..................8 1.2.1 Pump Case ..........................8 1.2.2 Impeller and Wear Rings ......................8 1.3 SEAL CHAMBER ..........................
  • Page 5 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 4.1 CONCRETE FOUNDATION PREPARATION ..................28 4.2 LEVELING BASEPLATE ........................30 4.3 GROUTING* ........................... 32 4.3.1 Equipment/Material Required ....................32 4.3.2 Grouting Precautions......................32 4.3.3 Grouting Procedure ........................ 33 4.4 ANCHOR TIGHTENING TORQUE SELECTION ................. 35 5.
  • Page 6 10.1 PUMP SECTIONAL DRAWING AND PARTS LISTING – BEARING BRACKET SIZE 35 ....114 10.2 PUMP SECTIONAL DRAWING AND PARTS LISTING – BEARING BRACKET SIZES 55, 75, AND 90 ................................115 10.3 PUMP SECTIONAL DRAWING AND PARTS LISTING – SCE-L ............116 11. TROUBLESHOOTING CHART......................117 12. EXTENDED WARRANTY ........................120 12.1 PUMP OPERATION LOG......................

  • Page 7: Product Description

    The chosen location for installation must offer enough space for maintenance activities. Please contact a Ruhrpumpen representative should problems arise. The pump may only be opened by a Ruhrpumpen approved technician during the guarantee period. In case of queries, please have your project number and type designation of the pump available. You can find both of these on the first page of these operating instructions or on the rating plate fixed to the pump.

  • Page 8: Pump Case, Impeller, And Wear Rings

    API 610. It is keyed to the shaft and locked with an impeller nut and set screw. Replaceable front and back wear rings are standard for the SCE, with two impeller wear rings and two case wear rings. SCE-L pump sizes, with a semi-open impeller design, do not have impeller wear rings, and only one case cover wear ring.

  • Page 9: Bearing Bracket

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 1.4 BEARING BRACKET The bearing bracket, which also serves as a large reservoir for oil ring lubrication, encloses the two ball type angular contact thrust and deep groove ball radial bearings. A radial cylindrical roller bearing is also standard for certain sizes.

  • Page 10: Safety

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 2. SAFETY This operation manual gives basic instructions that should be observed during installation, operation and maintenance of the pump. It is therefore imperative that this manual be read by the responsible personnel/operator prior to assembly and commissioning.

  • Page 11: Qualification And Training Of Operating Personnel

    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. Moreover, the plant operator is to make sure that the contents of the operating manual are fully understood by the personnel.

  • Page 12: Compliance With Directives Pertaining To Pumps Operating In Potentially Explosive Atmospheres

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 2.5 COMPLIANCE WITH DIRECTIVES PERTAINING TO PUMPS OPERATING IN POTENTIALLY EXPLOSIVE ATMOSPHERES This pump line is designed to meet group II, category 2 G in the ATEX classification. The marking of the pump classified according to the ATEX directive is as follows: II 2G Ex h Tx Gb Where:...

  • Page 13: Safety Instructions Relevant For Operation

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 2.6 SAFETY INSTRUCTIONS RELEVANT FOR OPERATION WARNING If hot or cold machine components are exposed, they can create a hazard and must be guarded against accidental contact (attach warning signs). WARNING Guards for moving parts (e.g., coupling) must not be able to be removed from the machine while in operation (mounting &...

  • Page 14: Unauthorized Alterations And Spare Parts

    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 15: 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. CAUTION DO NOT place lifting rig around bearing frame or under baseplate.

  • Page 16: Transport

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 3.3 TRANSPORT IMPORTANT The electric motor may be provided with a lifting eye, this lifting eye is intended only for the purpose of carrying out service activities to the electric motor only. NEVER lift a complete pump unit at the lifting eye of an electric motor.
  • Page 17 Heavy Duty, Single Stage, Overhung, API 610 Process Pump CAUTION When transporting with a crane, the rope should be slung round the unit as shown in the figure below. CAUTION The rope should not be slung around the lugs attached to the motor or around the lugs attached to the pump.

  • Page 18: Storing

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 3.4 STORING CAUTION Damage during storage due to liquid ingress, humidity, dirt or vermin. Corrosion/contamination of the pump (set). • Clean and cover pump apertures and connections as required prior to putting the pump into storage.
  • Page 19 13. 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. To properly store the motor (driver) for periods longer than one month, follow these steps: 1.
  • Page 20 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 5. Upon receipt, considering that the oil-lubricated drivers are not shipped oil-filled, fill the reservoir to maximum level with properly selected oil with rust and corrosion inhibitors. ATTENTION Always drain the oil before moving the pump, to avoid any damages, and refill the motor on its new location.

  • Page 21: Conservation

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 3. Oil and/or grease must be completely changed using lubricants and methods recommended on the motor's lubrication plate, in the “LUBRICATION” section of the driver manufacturer’s manual. 4. If storage has exceeded one year, the motor manufacturer’s Quality Assurance Department must be contacted prior to equipment start-up for any special recommendations.

  • Page 22: Disposal

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 3.6 DISPOSAL DANGER Mishandling and improper disposal of hot, toxic, or other harmful substances. Hazard to people and the environment. • Collect and properly dispose of flushing fluids and any fluid residues. •...
  • Page 23 Heavy Duty, Single Stage, Overhung, API 610 Process Pump IMPORTANT The abandonment in the environment of the apparatus or the illegal disposal of the same is punished by law. DANGER Temperature increases resulting from contact between rotating and stationary components. Explosion hazard.

  • Page 24: Inspection

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump WARNING Waste electrical and electronic equipment/consumables/supplies pose a health and environmental hazard. Hazard to people and the environment. • Collect, segregate, and properly dispose of electrical and electronic components. • Contact the manufacturer given on the corresponding nameplate for disposal and collection guidelines.

  • Page 25: Installation

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 4. INSTALLATION CAUTION Mishandling and improper installation of inflammable, toxic, or other substances that harmful. Danger to life and the environment. • Installation, foundation and maintenance of pumps handling inflammable liquids and other pollutive products may only be performed by authorized companies or their personnel.
  • Page 26 Heavy Duty, Single Stage, Overhung, API 610 Process Pump WARNING Unsecure installation on surfaces which are unsuitable for supporting the static and dynamic loads. Personal injury and damage to property. • Use concrete with compressive strength class C12/15 which meets the requirements of exposure class X0 to EN 206-1.
  • Page 27 Heavy Duty, Single Stage, Overhung, API 610 Process Pump CAUTION Welding particles, scale and other impurities in the piping. Damage to the pump. • Remove any impurities from the piping before starting the pump. • If necessary, install a suction filter. DANGER Electrical connection work by unqualified personnel.

  • Page 28: Concrete Foundation Preparation

    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 29 Heavy Duty, Single Stage, Overhung, API 610 Process Pump IMPORTANT All foundation materials shall be selected to prevent deterioration due to exposure to an aggressive environment; the use of a protective coating should be considered. IMPORTANT The mass of the concrete foundation should be five (5) to ten (10) times the mass of the supported equipment.

  • Page 30: Leveling Baseplate

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 4. Use a template to accurately locate foundation bolts according to the General Arrangement. Choose foundation bolts of size specified in drawing (ASTM A36, M 1020 and ASTM A575 are recommended), they should be long enough to allow a minimum of two threads above the nuts.
  • Page 31 Heavy Duty, Single Stage, Overhung, API 610 Process Pump IMPORTANT There should be a minimum annular clearance of 1/8 inch (3 mm) between anchor bolt holes and the anchor bolts to allow for field alignments. WARNING Exercise proper caution when working under or around suspended objects. 5.

  • Page 32: Grouting

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 4.3 GROUTING* NOTE The information included in this section is intended as a general guideline. For further information refer to the corresponding section in API Recommended Practices 686. IMPORTANT It is recommended that the customer consult a competent specialist skilled in the field of grouting to insure proper installation of all grouting.

  • Page 33: Grouting Procedure

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 4.3.3 Grouting Procedure 1. Verify that anchored bolt sleeves are clean and dry. Fill them with a nonbonding moldable material to prevent them from being grouted. 2. The anchor bolt threads should be protected with tape before grouting. 3.
  • Page 34 Heavy Duty, Single Stage, Overhung, API 610 Process Pump ATTENTION It is imperative to get rid of all trapped air before the grout hardens. ATTENTION Check frequently for grout leaks. ATTENTION Leaks will not self-seal and may cause voids. 6. Remove jackscrews and grout-forms once the grout has completely hardened (takes around 3 days).

  • Page 35: Anchor Tightening Torque Selection

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 4.4 ANCHOR TIGHTENING TORQUE SELECTION To appropriately select an anchor tightening torque, follow this procedure: ATTENTION Prior to selecting a tightening torque, the nut and anchor material and their respective yield strengths must be known.

  • Page 36: Piping And Alignment

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 5. PIPING AND ALIGNMENT DANGER Excessive loads acting on the pump nozzles/flanges. Danger to life from leakage of hot, toxic, corrosive or flammable fluids. • Always ensure that surrounding pipe-work is aligned to the pump without strain. •...

  • Page 37: Piping The System

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump WARNING Do not start the piping and alignment procedures until grouting, preliminary alignment (as seen in the previous sections of this manual) and on site welding have been performed. ATTENTION In a new installation, great care should be taken to prevent dirt, scale, welding beads, and other items from entering the pump.
  • Page 38 API 610 Process Pump 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 piping.
  • Page 39 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Figure 5.1 Correct mounting of a cone type strainer. 8. Disconnect the piping from the pump if you heat one side of the pipe to align the pipe to the pump. 9.
  • Page 40 Heavy Duty, Single Stage, Overhung, API 610 Process Pump ATTENTION In horizontal suction lines, reducers should be eccentric (with the flat side of the reducer on top). ATTENTION No obstruction within at least five pipe diameters of the suction flange should be fitted. ATTENTION Do not install unsupported piping on the pump.

  • Page 41: Alignment

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 5.2 ALIGNMENT IMPORTANT It is recommended to generally establish a maximum misalignment of 0.005” [0.127mm]. It is important to note that as the misalignment tolerance increases, the risk to the pumping equipment increases.
  • Page 42 Heavy Duty, Single Stage, Overhung, API 610 Process Pump necessary that the indicator return to zero where it started. If it did not, repeat your readings. It is also advisable to check the readings several times to make sure that they are repeatable. 3.
  • Page 43 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Figure 5.2. Example for reverse indicator graphical analysis. The next step is to determine indicator sag. Set up your bracket arrangement on a pipe. Set the indicator at '0' on top. Roll set up until indicator is at the bottom of pipe. It will read negative. In this example, it is found to be -0.005 inch (-0.127 mm).
  • Page 44 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Figure 5.3. Indicator sag. With the indicator bracket attached to the motor hub reading off the pump hub, rotate unit in 90° increments and take readings. Bottom reading is then corrected for indicator sag. Indicator sag in the example was determined to be -0.005 inch (-0.127 mm).
  • Page 45 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Figure 5.4. Motor shaft extension relative to the pump shaft center line. Now with the indicator bracket attached to the pump hub reading off the motor hub, rotate unit again in 90° increments. NOTE If you can set up both indicators at once, both sets of readings can be taken at one time.
  • Page 46 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Figure 5.5. T.I.R. second reading We have now located the motor shaft theoretical extension in two places: A. In the plane of the pump hub. B. In the plane of the motor hub. Drawing a straight line through these two points crossing the plane of the two motor feet.
  • Page 47 Heavy Duty, Single Stage, Overhung, API 610 Process Pump C. REVERSE INDICATOR ALIGNMENT MORE THAN TWO UNITS GRAPHICAL ANALYSIS This method lends itself very well in solving alignment problems of three or more pieces of equipment in a line. To solve this problem, follow the steps already outlined for each coupling in the train. Plot the shaft to shaft relationship of each set of shafts.
  • Page 48 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Figure 5.8. Across the disc pack alignment graphical analysis example. The next step is to determine indicator sag. Set up your bracket arrangement on a pipe. Set the indicator at '0' on top. Roll set up until indicator is at the bottom of pipe. It will read negative. In this example, it was found to be -0.004 inch (-0.102 mm).
  • Page 49 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Bottom reading is then corrected for indicator sag. The indicator sag in the example was determined to be -0.004 inch (-0.102 mm). The -0.004 inch (-0.102 mm) was subtracted from -0.025 inch (- 0.635 mm) indicator reading to give an actual of -0.020 inch (-0.508 mm) reading.
  • Page 50 Heavy Duty, Single Stage, Overhung, API 610 Process Pump The minus reading on the bottom indicates that the center member tips up as it extends away from the motor. Using a scale of one small division on the graph equals 0.001 inch (0.025 mm), plot the 0.006 inch (0.192 mm) as shown on the example.

  • Page 51: Lubrication

    Adjust the oil in accordance with directions enclosed within the oiler glass to maintain the oil at the sight glass level mark. ATTENTION Ruhrpumpen takes every precaution during our assembly process and subsequent final assembly audits to ensure no bearing frame oil leaks exist prior to shipment. Refer to the filling instructions for additional information.
  • Page 52 4 x 3 x 11 4 x 4 x 7.5 2 x 1 x 9.25 3 x 1.5 x 11.5 SCE-L 1.5 x 1 x 8 3 x 1 x 9.5 4 x 2 x 11.5 2 x 1 x 8 3 x 1.5 x 9.75...

  • Page 53: Maintenance

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump c. For Bearing Bracket Size 75, 0.98 U.S. gallons (3.7 L) for the following pump sizes: 8 x 8 x 15 6 x 3 x 19 8 x 6 x 22 8 x 6 x 16 10 x 8 x 19 12 x 8 x 22...

  • Page 54: Pure Oil Mist-Dry Sump

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 6.2 PURE OIL MIST-DRY SUMP ATTENTION When pure oil lubrication is supplied, the oil mist is the only lubricant provided. WARNING The oil mist generator must be running before starting the unit. Basic oil-mist generating system should include the following: 1.

  • Page 55: Purge Oil Mist-Wet Sump

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump • If bearing housing is dismantled, flush bearing housing with clean lightweight oil (e.g. ATF). • Be certain bearings have a light coating of oil before startup. 6.3 PURGE OIL MIST-WET SUMP WARNING When purge oil lubrication is supplied, the oil mist is used to maintain a positive pressure in the bearing housing to keep contaminants from entering the bearing housing.

  • Page 56: Oil Change

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 6.4 OIL CHANGE Once every eight hours of pump operation, perform visual inspection of oil and oil level at the constant level oiler. The first oil change should be carried out three weeks after commissioning; all further oil changes take place every six months.
  • Page 57 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Figure 6.1b. Oil tank. Figure 6.1c. Oil tank cap (with set screws). Figure 6.1d. Oil reservoir. Untighten the set screws of the oil tank cap. Remove the oil tank cap along the oil reservoir. Unscrew and remove the oil reservoir from the oil tank cap.
  • Page 58 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Pour oil into the oil tank as necessary until the oil level reaches the label marked on the tank. Place the oil tank cap on the oil tank and tighten the oppressor pins. Fill the oil reservoir up to ¾...

  • Page 59: Operation

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 7. OPERATION IMPORTANT NEVER operate the pump in a system or under system conditions (flow, pressure, temperature, etc.) for which it has not been designed. NOTE The electric motor and drive assembly is a sub-component of the pump (set) with its own installation, operating, and maintenance guidelines.

  • Page 60: Priming

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 7.1 PRIMING DANGER Risk of potentially explosive atmosphere by mixing of incompatible fluids in the auxiliary piping. Explosion hazard. Risk of burns. • Make sure that the barrier fluid or quench liquid are compatible with the pumped fluid handled.
  • Page 61 Heavy Duty, Single Stage, Overhung, API 610 Process Pump If the pump operates under a suction lift, the suction line must be equipped with a foot valve and manually primed. Pumps handling hot (>500 °F, >260 °C) fluids must be gradually preheated to operating temperature. The most common method used for warming a pump, or maintaining a standby pump in a warm condition, is the use of a warming line and orifice, thus circulating the hot pumpage through the idle pump.

  • Page 62: Startup

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 7.2 STARTUP DANGER Abnormal noise, vibration, temperature or leakage. Damage to the pump. • Switch off the pump (set) immediately. • Eliminate the causes before returning the pump set to service. •...
  • Page 63 Heavy Duty, Single Stage, Overhung, API 610 Process Pump IMPORTANT Immediately observe the pressure gauges. If the discharge pressure is not quickly attained, stop the driver, re-prime and attempt to restart. Adjust the discharge valve until rated flow is obtained. IMPORTANT A sudden increase of running noise is always a sign of possible trouble.
  • Page 64 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Figure 7.1. Seal setting devices. The startup procedure is as follows: 1. Before starting the pump, check the security of all bolting, piping, and wiring. 2. Check all gauges, valves and instruments for proper working order. 3.
  • Page 65 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 13. Priming accomplished and correct shaft rotation established, the pump is ready for continued operation. 14. Securely couple the driver and the pump, and ensure the discharge valve is open to approximately ¼...

  • Page 66: Operating Check

    SECTION ELEVEN - TROUBLESHOOTING CHART). 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. DANGER Instability due to operating outside given limits for pressure, temperature, fluid handled and speed.
  • Page 67 Heavy Duty, Single Stage, Overhung, API 610 Process Pump • Check at regular intervals that the safety equipment is sound and is arranged and fastened according to the regulations, and energized where applicable. • Check the security of all bolting, piping, and wiring. •...

  • Page 68: Doweling

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump DANGER The pump may only be operated under the minimum operating range for short periods. The minimum pump flow is given in the characteristic line. For pumps with equipped with packing strips as a sealing option, do not tighten the packing strips excessively to the point of stopping the leakage.

  • Page 69: Stopping

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 7.5 STOPPING 1. Throttle pump discharge to minimum flow. WARNING DO NOT close suction valve, this will cause the pump to run dry. 2. Turn the power off to the driver. 3.

  • Page 70: Short-Term Shutdown

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 7.6 SHORT-TERM SHUTDOWN If the pump has 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 71: Maintenance

    If the complete disassembly of the pump is not necessary, use only the required steps. To perform the maintenance of the SCE pump, no special (custom made) tools are needed. CAUTION Mishandling and improper installation of inflammable, toxic, or other substances that are harmful.
  • Page 72 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 73: Disassembly

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 8.1 DISASSEMBLY 1. Stop the pump. See SECTION 7.5 - STOPPING. 2. Drain all possible fluids from the pump case and bearing brackets. 3. Disconnect any auxiliary piping and wiring that could interfere with disassembly. 4.

  • Page 74: Orifice Plate Disassembly

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump c. Slide pump cover, with seal attached, off pump shaft. Place the cover, with seal flange facing upward, on worktable. d. Apply protective wrap and store seal components. Refer to seal manufacturer's literature for disassembly, inspection, cleaning, and reassembly of the mechanical seal.

  • Page 75: Inspection And Cleaning

    1. Thoroughly clean all parts with kerosene or equivalent and dry all parts with compressed air or a clean, lint free cloth. 2. Inspect all components for corrosion, erosion, pitting, and scoring. If required, replace with Ruhrpumpen O.E.M. genuine replacement parts. a. Visual check all individual parts for any damage b. Check the casing for wear.
  • Page 76 ATTENTION Any service performed on the pump´s interior must be performed by Ruhrpumpen personnel or one of its authorized representatives. Failing to comply with this will void the warranty and will release Ruhrpumpen and all its representatives of any liability.
  • Page 77 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Figure 8.1 Heating the thrust bearings. 2. Position the shaft vertically (with the coupling side upward) in a press. ATTENTION Cover the jaws of the press with soft material to prevent damaging the shaft. 3.
  • Page 78 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 4. As soon as the bearings have reached the temperature of 230 °F (110 °C), place the bearings on the shaft in a back to back arrangement (the serial numbers in the outer race are in contact between the two bearings).
  • Page 79 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 6. Now, remove the locknut and position the lock washer so that it is in contact with the thrust bearings on the coupling side. The tab on the lock washer inner diameter must be bent to fit into the small keyway recess cut into shaft threads, to prevent rotation of the bearing locknut.
  • Page 80 Heavy Duty, Single Stage, Overhung, API 610 Process Pump up to one-quarter (1/4) turn, to firmly snug the assembly, ensuring, at the end of the tightening process, that one of the lock washer tabs lines up with the slots in the locknut. Figure 8.6 Tightening the locknut.
  • Page 81 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Figure 8.8 Heating the radial ball bearing. b. In case of radial roller bearing, place only the inner race of the radial bearing in an induction heater. Turn on the heater and continuously measure the temperature of the inner race, looking to reach 230 °F (110 °C).
  • Page 82 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 13. In this step, the procedure is also different depending on the type of radial bearing of your pump. a. In case of radial ball bearing, insert the oil rings at the shaft. As soon as the bearing reaches the 230 °F (110 °C) temperature, it is manually positioned in the shaft (with the serial number visible from the outside).
  • Page 83 Heavy Duty, Single Stage, Overhung, API 610 Process Pump ATTENTION Inspection point: Now that both thrust bearings and the radial bearing/radial bearing’s inner race have been reassembled in the shaft, make sure that there is no gap between both thrust bearings, by holding them and trying to move them.
  • Page 84 Heavy Duty, Single Stage, Overhung, API 610 Process Pump b. Position the labyrinth seal at the bearing cover in its correct position. (With the internal drain slot of the labyrinth seal at the 6 o’clock position of the bearing cover [you can see which side is the 6 o’clock position with the mark at the cover]).
  • Page 85 Heavy Duty, Single Stage, Overhung, API 610 Process Pump e. Perform this procedure on both covers. Figure 8.17 Repeating the process for each cover. 15. This step applies only for pumps with a radial roller bearing (bracket sizes 55, 75, and 90). You will need a hard plastic block.
  • Page 86 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 16. Position the radial gasket at the cover, taking care of not covering the oil returns and ensuring all the slots match. Position manually the cover on the bearing bracket, ensuring the cover is rotated in the correct position.
  • Page 87 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Bracket size Bolting size Torque values lb-ft (N-m) 3/8 – 16 UNC – 2B 29 (39) 1/2 – 13 UNC – 2B 73 (99) 1/2 – 13 UNC – 2B 73 (99) 3/4 –...
  • Page 88 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 20. For pumps with a radial roller bearing only (bracket sizes 55, 75, and 90), the oil rings are positioned inside the bracket, concentric to the radial housing, so that they stay inside the shaft when the rotor is assembled.
  • Page 89 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 22. Hit (softly) the shaft in the coupling side to ensure the correct assembly. Figure 8.25 Hitting softly the coupling side of the shaft. ATTENTION Inspection point: Check that the bearings enter evenly in the housing; the bearing should rest against the wall of the bearing bracket.
  • Page 90 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 24. To position the thrust cover at the bearing bracket, first position the thrust gasket on the bearing bracket, ensuring all the slots match. Figure 8.27 Positioning the thrust gasket in the bearing bracket. ATTENTION Do not cover the oil returns and check that all features at the bracket match 25.
  • Page 91 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 27. Position the bolts manually, but first protect them with anti-seize protection. Tighten these bolts diagonally (crosswise) to ensure correct reassembly, using the torque values of the next table. Figure 8.29 Protecting and ensuring correct reassembly. Bracket size Bolting size Torque values lb-ft (N-m)
  • Page 92 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 28. Now, with the bearing bracket in horizontal position, through the vent hole and using a screwdriver, place the oil rings in their proper position in the shaft. Figure 8.30 Positioning the oil rings. 29.
  • Page 93 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 30. Position all features and plugs in the bearing bracket. Use the proper wrench to install sight glass, oiler, breather, and any other plug necessary. Figure 8.32 Identifying the plugs in the bearing bracket. ATTENTION Apply pipe tape sealant only if it is a pass-through thread (except for the vent and the retainers).
  • Page 94 Heavy Duty, Single Stage, Overhung, API 610 Process Pump b. Insert the wear ring completely to the shoulder on the casing cover using a rubber mallet. Figure 8.33 Positioning the wear ring. ATTENTION Insert the ring so that the shoulder rests towards the inside of the casing cover. Figure 8.34 Verifying the position of the shoulder of the ring.
  • Page 95 Heavy Duty, Single Stage, Overhung, API 610 Process Pump e. The weld points are polished to give them a finish. Figure 8.35 Finish of welded points. 32. In the inner diameter of the casing cover, the wear ring that works with the shaft (throat bushing) is positioned.
  • Page 96 Heavy Duty, Single Stage, Overhung, API 610 Process Pump b. Insert it in its position (to the limit) with a rubber mallet. Figure 8.37 Positioning the wear ring. ATTENTION Insert the ring so that the shoulder rests towards the inside of the casing cover. Figure 8.38 Verifying the position of the shoulder of the ring.
  • Page 97 Heavy Duty, Single Stage, Overhung, API 610 Process Pump e. The weld points are polished to give them a finish. Figure 8.39 Finish of welded points. ATTENTION Inspection point: Check visually that the ring is assembled to the limit of the casing. Check that the three welded points are polished.
  • Page 98 Heavy Duty, Single Stage, Overhung, API 610 Process Pump d. The weld points are polished to give them a finish. Figure 8.41 Finish of welded points. ATTENTION Inspection point: Check visually that the ring is assembled to the limit of the casing. Check that the three welded points are polished.
  • Page 99 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Now: a. Install the mechanical seal in the casing cover with the four studs and nuts. Figure 8.43 Placing the mechanical seal at the casing cover. b. Tighten these bolts diagonally (crosswise) to ensure correct assembly. The torque values are indicated in the next table.
  • Page 100 Heavy Duty, Single Stage, Overhung, API 610 Process Pump b. Lift the assembly of the bearing bracket and position it over the casing cover shoulder. Figure 8.44 Positioning the bearing bracket assembly on the casing cover. c. Position the bolts (previously protected with anti-seize) by hand. d.
  • Page 101 Heavy Duty, Single Stage, Overhung, API 610 Process Pump b. Now position the impeller on the shaft until it stops on the shoulder. Figure 8.46 Positioning the impeller on the shaft. ATTENTION Make sure that the suction of the impeller is directed towards the opposite side. Figure 8.47 Verifying the direction of the suction.
  • Page 102 Heavy Duty, Single Stage, Overhung, API 610 Process Pump d. Install the set screw with locktite and tighten it with an Allen key to secure the impeller nut. Figure 8.48 Positioning and tightening the set screw. ATTENTION Inspection point: Rotate the impeller and make sure that the wear rings do not make contact. 38.
  • Page 103 Heavy Duty, Single Stage, Overhung, API 610 Process Pump c. Now, use the double nut technique to insert the studs all the way in (the studs do not require torque). Figure 8.50 Tightening the studs. ATTENTION Check visually that studs are fastened to the limit: all of them should have approximately the same height.
  • Page 104 Heavy Duty, Single Stage, Overhung, API 610 Process Pump ATTENTION The casing gasket must be changed every time the casing and the casing cover are disassembled and reassembled. Figure 8.52 Identifying the casing gasket. d. Position the whole assembly vertically over the casing. Lower assembly into casing. Ensure the gasket stays in position.
  • Page 105 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Bolting size Torque values lb-ft (N-m) 3/4 – 10 UNC – 2B 258 (350) 7/8 – 9 UNC – 2B 417 (566) 1 – 8 UNC – 2B 625 (848) 1 1/4 – 7 UNC – 2B 1 291 (1 750) 1 1/2 –...
  • Page 106 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 40. Now to assemble the fan and the fan guard (if applicable), follow these steps: a. Insert the fan on the shaft. Secure to the shaft using set screws. Ensure at least a ⅛ inch gap in between.

  • Page 107: Sce-L Impeller Clearance Adjustment

    API 610 Process Pump 8.3.1 SCE-L Impeller Clearance Adjustment This section applies only for SCE-L pumps. The adjustment of the impeller should be performed with the pump casing. Depending on the operating conditions is how the impeller clearance should be adjusted, and if those conditions change, the adjustment should be redone according to the new operating conditions.
  • Page 108 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Adjustment of impeller clearance ATTENTION The axial adjustment to determine the clearance between the impeller and the casing should not be performed with the mechanical seal fixed, as this could damage the mechanical seal. ATTENTION If applicable, the fan and fan hood must be temporarily removed before following this procedure, and placed again once the adjustment has been performed, as detailed on...

  • Page 109: Orifice Plate Reassembly

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump Another way of measuring the clearance is to perfectly anchor the pump and then measure with a dial indicator, which must be supported on the axial cover. Loosen the hexagonal bolts and tighten the jackscrews until obtaining the correct clearance as shown on the table.
  • Page 110 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 3. Place the corresponding gasket on the raised face of the pump´s discharge flange. Figure 8.61 Placing the corresponding gasket on the raised face of the pump´s discharge flange. 4. Insert the orifice plate on the studs until it reaches the gasket. Figure 8.62 Inserting the orifice plate on the studs until it reaches the gasket.
  • Page 111 Heavy Duty, Single Stage, Overhung, API 610 Process Pump 5. Place and tighten the corresponding nuts to secure the orifice plate to the pump´s discharge flange. Figure 8.63 Placing and tightening the corresponding nuts to secure the orifice plate to the pump´s discharge flange.

  • Page 112: Spare Parts

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 9. SPARE PARTS The recommended quantities of spare parts to meet regular conditions of constant operation over a period of two years are given in the list below: Number of identical pumps (including reserve pumps) 10 and 6 and 7 8 and 9 more...
  • Page 113 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Material Storage of spare parts • Store the spare parts in their original packaging. • Store in a dry place, preferably at a constant temperature. • Check the spare parts and the state of the packaging every 6 months for signs of corrosion. •...

  • Page 114: Parts Information

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 10. PARTS INFORMATION 10.1 PUMP SECTIONAL DRAWING AND PARTS LISTING – BEARING BRACKET SIZE 35 V3.111623...

  • Page 115: Pump Sectional Drawing And Parts Listing - Bearing Bracket Sizes 55, 75, And 90

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 10.2 PUMP SECTIONAL DRAWING AND PARTS LISTING – BEARING BRACKET SIZES 55, 75, AND 90 V3.111623...

  • Page 116: Pump Sectional Drawing And Parts Listing - Sce-L

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump 10.3 PUMP SECTIONAL DRAWING AND PARTS LISTING – SCE-L V3.111623...

  • Page 117: Troubleshooting Chart

    If the pump does not develop the required performance or if an unexpected issue happens during start-up, please consider, before calling Ruhrpumpen for assistance, please check carefully the pump´s environment. Check the motor and pump speed in accordance with the labels, wire connections in the terminal box.
  • Page 118 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 same d. Check the cables, connections and fuses.
  • Page 119 Feed pipe or impeller i. Install vent valve or lay piping elsewhere. CAPACITY OR plugged j. Change worn parts. Formation k. Consult a Ruhrpumpen dealer. DISCHARGE pockets in the piping l. Apply correct voltage to the motor. PRESSURE j. Inner pump parts are m.

  • Page 120: Extended Warranty

    Fifteen days prior to the initial operation, a Ruhrpumpen Service Engineer must be hired by the customer to thoroughly inspect the pump to confirm that the pump is in a “as shipped” condition. This inspection must include, but not be limited to: a) Inspection of the preventative maintenance logs.

  • Page 121: Pump Operation Log

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump • The customer must send the equipment to an authorized Ruhrpumpen service center for maintenance every 48 months to replace all worn parts and so that a general inspection on the pump can be performed.
  • Page 122 Heavy Duty, Single Stage, Overhung, API 610 Process Pump CONDITION RECORDED ITEM YES NO VALUES When equipped with packing strips, the packing gland must not be overtightened. Packing gland tightening must be enough so that the pump does not experience splashing from the pumped liquid and so that the equipped drain is able to empty the drip pan.

  • Page 123: Annex A. Torque Tables

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump ANNEX A. TORQUE TABLES A.1 METRIC TORQUE VALUES FOR PERMANENT JOINTS – COARSE THREAD (UNC) Yield Strength [MPa] Anchor Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque [N-m] [N-m]...
  • Page 124 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Yield Strength 1025 1075 1125 [MPa] Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Anchor [N-m] [N-m] [N-m] [N-m] [N-m] Size [ mm ] Lubricated Lubricated Lubricated Lubricated Lubricated 1053 1107 1161...

  • Page 125: Imperial Torque Values For Permanent Joints - Coarse Thread (Unc)

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump A.2 IMPERIAL TORQUE VALUES FOR PERMANENT JOINTS – COARSE THREAD (UNC) Yield 32634 39885 47137 54389 61641 68893 76145 Strength [psi] Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Anchor...
  • Page 126 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Yield Strength 134160 141412 148664 155916 163168 [psi] Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Anchor [lbf-ft] [lbf-ft] [lbf-ft] [lbf-ft] [lbf-ft] Size [ in ] Lubricated Lubricated Lubricated Lubricated Lubricated 5/16...

  • Page 127: Metric Torque Values For Permanent Joints - Fine Thread (Unf)

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump A.3 METRIC TORQUE VALUES FOR PERMANENT JOINTS – FINE THREAD (UNF) Yield Strength [MPa] Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Anchor [N-m] [N-m] [N-m] [N-m] [N-m]...
  • Page 128 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Yield 1025 1075 1125 Strength [MPa] Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Anchor [N-m] [N-m] [N-m] [N-m] [N-m] Size [ mm ] Lubricated Lubricated Lubricated Lubricated Lubricated 1053 1107 1161...

  • Page 129: Imperial Torque Values For Permanent Joints - Fine Thread (Unf)

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump A.4 IMPERIAL TORQUE VALUES FOR PERMANENT JOINTS – FINE THREAD (UNF) Yield 32634 39885 47137 54389 61641 68893 76145 Strength [psi] Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Anchor...
  • Page 130 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Yield 134160 141412 148664 155916 163168 Strength [psi] Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Anchor [lbf-ft] [lbf-ft] [lbf-ft] [lbf-ft] [lbf-ft] Size [ in ] Lubricated Lubricated Lubricated Lubricated Lubricated 5/16...

  • Page 131: Metric Torque Values For Reusable Joints - Coarse Thread (Unc)

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump A.5 METRIC TORQUE VALUES FOR REUSABLE JOINTS – COARSE THREAD (UNC) Yield Strength [MPa] Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Anchor [N-m] [N-m] [N-m] [N-m] [N-m]...
  • Page 132 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Yield 1025 1075 1125 Strength [MPa] Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Anchor [N-m] [N-m] [N-m] [N-m] [N-m] Size [ mm ] Lubricated Lubricated Lubricated Lubricated Lubricated 1012 1135 1196...

  • Page 133: Imperial Torque Values For Reusable Joints - Coarse Thread (Unc)

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump A.6 IMPERIAL TORQUE VALUES FOR REUSABLE JOINTS – COARSE THREAD (UNC) Yield 32634 39885 47137 54389 61641 68893 76145 Strength [psi] Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Anchor...
  • Page 134 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Yield Strength 134160 141412 148664 155916 163168 [psi] Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Anchor [lbf-ft] [lbf-ft] [lbf-ft] [lbf-ft] [lbf-ft] Size [ in ] Lubricated Lubricated Lubricated Lubricated Lubricated 5/16...

  • Page 135: Metric Torque Values For Reusable Joints - Fine Thread (Unf)

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump A.7 METRIC TORQUE VALUES FOR REUSABLE JOINTS – FINE THREAD (UNF) Yield Strength [MPa] Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Anchor [N-m] [N-m] [N-m] [N-m] [N-m]...
  • Page 136 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Yield Strength 1025 1075 1125 [MPa] Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Anchor [N-m] [N-m] [N-m] [N-m] [N-m] Size [ mm ] Lubricated Lubricated Lubricated Lubricated Lubricated 1053 1107 1161...

  • Page 137: Imperial Torque Values For Reusable Joints - Fine Thread (Unf)

    Heavy Duty, Single Stage, Overhung, API 610 Process Pump A.8 IMPERIAL TORQUE VALUES FOR REUSABLE JOINTS – FINE THREAD (UNF) Yield 32634 39885 47137 54389 61641 68893 76145 Strength [psi] Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Anchor...
  • Page 138 Heavy Duty, Single Stage, Overhung, API 610 Process Pump Yield Strength 134160 141412 148664 155916 163168 [psi] Maximum Torque Maximum Torque Maximum Torque Maximum Torque Maximum Torque Anchor Size [lbf-ft] [lbf-ft] [lbf-ft] [lbf-ft] [lbf-ft] [ in ] Lubricated Lubricated Lubricated Lubricated Lubricated 5/16...
  • Page 139 +70 years creating the pumping technology that moves our world Ruhrpumpen is an innovative and efficient pump technology company that offers highly-engineered and standard pumping solutions for the oil & gas, power generation, industrial, water and chemical markets. We offer a broad range of centrifugal and reciprocating pumps that meet and exceed the requirements of the most demanding quality specifications and industry standards such as API, ANSI, UL, FM, ISO and Hydraulic Institute.

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