Ruhrpumpen CPO Installation, Operation And Maintenance Manual
  1. Manuals
  2. Brands
  3. Ruhrpumpen Manuals
  4. Water Pump
  5. CPO
  6. Installation, operation and maintenance manual

Ruhrpumpen CPO Installation, Operation And Maintenance Manual

Hide thumbs Also See for CPO:
Table of Contents

Advertisement

Quick Links

Download this manual
CPO
Installation, Operation and Maintenance Manual

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the CPO and is the answer not in the manual?

Questions and answers

Related Manuals for Ruhrpumpen CPO

Summary of Contents for Ruhrpumpen CPO

  • Page 1 Installation, Operation and Maintenance Manual...
  • Page 2 These units are horizontal process pumps of the overhung power frame configuration and identified by Ruhrpumpen as CPO. 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 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Information in this manual is believed to be reliable, but it is not guaranteed by Ruhrpumpen as to its completeness or accuracy. © 2022 Ruhrpumpen All Rights Reserved.

  • Page 4: Table Of Contents

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP INDEX 1. PRODUCT DESCRIPTION ........................7 1.1 INTRODUCTION ..........................7 1.2 PUMP CASE AND IMPELLER ......................8 1.2.1 Pump Case ..........................8 1.2.2 Impeller ............................ 8 1.3 CASE COVER ............................ 8 1.4 BEARING FRAME ..........................
  • Page 5 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 4.3.1 Equipment/Material Required ....................31 4.3.2 Grouting Precautions......................32 4.3.3 Grouting Procedure ........................ 32 4.4 AUXILIARY CONNECTIONS ......................34 4.5 ELECTRICAL CONNECTIONS ......................34 4.6 DIRECTION OF ROTATION CHECK ....................35 4.7 INSPECTION ...........................
  • Page 6 8.1 DISASSEMBLY ..........................72 8.2 INSPECTION AND CLEANING ......................74 8.3 REASSEMBLY ..........................75 8.3.1 CPO Pump Reassembly – Packing Strips Option ..............75 8.3.2 CPO Pump Reassembly – Mechanical Seal Option..............98 8.3.3 Impeller Clearance Adjustment Values ................101 8.3.4 Impeller Clearance Adjustment Procedure ................

  • Page 7: Product Description

    1.1 INTRODUCTION Ruhrpumpen pumps of type CPO are centrifugal pumps of the horizontal, vertically (radially) split case, foot mounted heavy-duty construction with an overhung open impeller, and are designed to meet the requirements of ANSI/ASME B73.1 – 2020. These pumps are designed for continuous duty pumping of various fluids with combinations of metallurgical, mechanical, and installation features for application in water, chemical and industrial service.

  • Page 8: Pump Case And Impeller

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP The CPO is a single stage, end suction pump. For these pumps, rotation is clockwise as viewed from the driver (coupling) end. A spacer coupling is provided for accessibility of service and maintenance. The spacer permits back pull-out, that is, complete removal of the rotating element without disturbing the piping or driver.
  • Page 9 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP end by a cover and lip seal or labyrinth seal, is cast with fins for air cooling but optional water cooling is available. BEARING RADIAL (DEEP GROOVE BALL THRUST (ANGULAR CONTACT BALL BRACKET BEARING, SINGLE ROW)

  • Page 10: Safety

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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: Safety Instructions Relevant For Maintenance, Inspection And Assembly Work

    On completion of work all safety and protective facilities must be re-installed and made operative again. Prior to restarting the machine, follow the instructions listed under SECTION 7.2 - STARTUP. 2.7 UNAUTHORIZED ALTERATIONS AND SPARE PARTS Modifications may be made to the machine only after consultation with a Ruhrpumpen representative. V3.082422...

  • Page 13: Unauthorized Modes Of Operation

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 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 14: 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 15: Transport

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 3.3 TRANSPORT NOTE 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 16 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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 17: Storing

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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 18 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: Store the motor in a clean, dry area, or cover it with a loose tarp (the tarp must be loose in order to prevent condensation).
  • Page 19 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP ATTENTION Follow the instruction manual of the driver manufacturer to ensure the lubrication is performed properly. 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.

  • Page 20: Conservation

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP After the storing period, follow the next steps as start-up preparations: Motor should be thoroughly inspected and cleaned to restore to an “As Shipped” condition. Motors, which have been subjected to vibration, must be disassembled and each bearing inspected for damage.

  • Page 21: Disposal

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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 22 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP ATTENTION The abandonment in the environment of the apparatus or the illegal disposal of the same is punished by law. WARNING Waste electrical equipment/consumables/supplies pose a health and environmental hazard.

  • Page 23: Inspection

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 3.7 INSPECTION DANGER Magnetic impact on personal health. Danger to life. • Never permit people to come in contact with Electro-Magnetic devices like motors, variable frequency drives, and magnetic drive assemblies who may have personal risks that can be impacted (e.g., pace-makers).

  • Page 24: Installation

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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 25 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP WARNING Unsecure installation on surfaces which are unsuitable for support 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 26 Bracket the pipe-work in close vicinity to the pump in which to isolate the pump from stress/strain. • Use expansion devices to accommodate thermal, local, and vibration movement of the piping. Correct and orderly installation/assembly is necessary for trouble-free operation of the unit. Ruhrpumpen does assume liability damage resulting...

  • Page 27: 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 28 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Figure 4.1. Imaginary lines. It is recommended to build foundation approximately 3 inches (76 mm) larger overall than the pump baseplate to provide ample anchorage for the foundation bolts. 3.1.

  • Page 29: Leveling Baseplate

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 4.2 LEVELING BASEPLATE 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. Before leveling the unit onto the foundation, the following preparations must be made: Chip away all damaged concrete with a hammer and chisel, eliminating about one inch of the surface of the foundation.
  • Page 30 (See the figure shown below); leveling within 0.002 in/ft (0.2 mm/m) is recommended. Wedges or shim packs should feel solid when tapped lightly by a hammer. Baseplate for CPO with pedestals. Baseplate for CPO mounting blocks. V3.082422...

  • Page 31: Grouting

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Baseplate for CPO with motor adapter with C flange. Figure 4.2. Baseplate leveling planes. NOTE The baseplate should be mounted without distortion. When the baseplate is leveled, 'snug' the foundation bolt nuts, but do not tighten completely.

  • Page 32: Grouting Precautions

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP • Risers or funnels for guiding grout. • Sufficient oil paint for grout protective covering. 4.3.2 Grouting Precautions During all the grouting process, the involved personnel must follow these safety precautions: Wear goggles or face shields, aprons, and protective gloves at all times.
  • Page 33 Fill the holes with grout. Tighten the foundation bolts with an appropriate torque value. In case of doubt, please contact your Ruhrpumpen representative. Apply oil paint to exposed grout to protect from air and moisture. Use a lifting rig to position the pump and driver on their baseplate so that the mounting feet line up with their respective tapped holes.

  • Page 34: Auxiliary Connections

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Fasten the pump and driver hold down bolts, attach all auxiliary piping and wiring. NOTE *If by client specification the pump is to be used in a service where grouting will not be possible, for example fire duty, it is responsibility of the customer to use a PIP baseplate.

  • Page 35: Direction Of Rotation Check

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP CAUTION Excessive time between star and delta switch-over on three-phase motors during start-up takes too long. Damage to the pump (set). • Optimize switch-over period between star and delta. •...

  • Page 36: Inspection

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 4.7 INSPECTION WARNING Trapped hands & fingers around the motor and coupling elements. Risk of injuries. • Always secure coupling guards correctly, ensuring that fingers cannot enter the rotating elements, before starting the pump and during operation.

  • Page 37: Piping And Alignment

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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 38: Piping The System

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP CAUTION 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 39 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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 the piping.
  • Page 40 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Figure 5.1. Correct mounting of a cone type strainer. Disconnect the piping from the pump if you heat one side of the pipe to align the pipe to the pump.
  • Page 41 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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 42: Alignment

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 5.2 ALIGNMENT 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 The tolerances for radial, axial and angular alignments must be of 0.05 mm (0.002 in) or lower.
  • Page 43 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 2. Taking Alignment Readings It is suggested that the dial indicator be zeroed at the top. For convenience, you should mark your coupling at 0°, 90°, 180°, and 270° with a reference mark on the case so that you can be sure to turn the unit exactly 90°.
  • Page 44 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Distance from where the second indicator rides on the motor hub to the center of the front motor feet. In the example below, this is 2-1/2 inches (63.5 mm). Distance from the center of the motor front feet to the center of the motor back feet.
  • Page 45 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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 46 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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°...
  • Page 47 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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 48 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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.
  • Page 49 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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.
  • Page 50 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP With the indicator bracket attached to the pump hub, reading out the center member a convenient distance, (in this example 8 inches [203.2 mm] was used) rotate the unit in 90° increments and take readings.
  • Page 51 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Now with the indicator bracket attached to the motor hub reading out on the center member, rotate the unit in 90° increments and take readings. Bottom reading is corrected for indicator sag: ±0.008 inch (±0.203 mm) -0.004 inch (0.102 mm) = +0.012 inch (+0.309 mm).
  • Page 52 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP For the horizontal (side to side) results, the same procedure is used. Algebraically subtract the side to side readings. Indicator sag can be ignored as it cancels out. Plot these readings and the results can be read off the graph.

  • Page 53: Lubrication

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 6. LUBRICATION 6.1 OIL LUBRICATION 6.1.1 Recommended Lubricant The recommended bearing frame oil is ISO VG 68 non-detergent oil. Turbine quality oil is preferred. This oil may be used during break-in and normal operation. 6.1.2.
  • Page 54 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Figure 6.1a. Constant level oiler (assembly). Figure 6.1b. Oil tank. Figure 6.1c. Oil tank cap (with set screws). V3.082422...

  • Page 55: Oil Change - Oil Sight

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 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. Pour oil into the oil tank as necessary until the oil level reaches the label marked on the tank.

  • Page 56: Quantity

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Drain the oil out and clean the bearing housing with a suitable cleaning liquid. Flushing the bearing housing with clean lightweight oil is possible (e.g., ATF). Remove the breather connection located at the top of the bearing housing and pour the oil.

  • Page 57: Pure Oil Mist-Dry Sump

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP ATTENTION If it is suspected that the bearings have been exposed to dirt or moisture, thoroughly clean the bearings and frame with a solvent and air-dry the parts before adding lubricant. Disassembly, inspection, cleaning, and reassembly procedures are provided in SECTION EIGHT - MAINTENANCE.

  • Page 58: Purge Oil Mist-Wet Sump

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Maintenance: • Periodically inspect the sediment bottle underneath the bearing frame. (Drain as required). • If bearing frame is dismantled, flush bearing frame with clean lightweight oil (e.g., ATF). •...

  • Page 59: Grease Lubricated Bearings

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 6.4 GREASE LUBRICATED BEARINGS Grease lubricated bearings are factory lubricated to prevent rusting for a short period of time only. Before starting the pump, the bearings must be properly greased. Check the bearings for the first hour or so after the pump has started up to ensure that they are functioning properly.

  • Page 60: Complete Cleaning During A Major Overhaul

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 6.4.3 Complete Cleaning During a Major Overhaul If the bearings need cleaning or if an overhaul period offers the opportunity, the bearings and the housings should be cleaned out in the following manner: Remove the bearing housings from the rotor assembly.

  • Page 61: Operation

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 7. OPERATION ATTENTION 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 62 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 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 63: Startup

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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 64 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP NOTE 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.
  • Page 65 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Figure 7.1. Seal setting devices. The startup procedure is as follows: Before starting the pump, check the security of all bolting, piping, and wiring. Check all gauges, valves and instruments for proper working order. Check all equipment for proper lubrication and correct rotation.

  • Page 66: 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: DANGER Beware of freely rotating parts, when the pump is in operation there is a high risk of injury.

  • Page 67: Doweling (Optional)

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP WARNING Unusual or too loud noises point towards a possible fault. • Monitor the power consumption of the drive motor. Low or excessive power consumption can indicate a possible fault. •...
  • Page 68 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP WARNING DO NOT close suction valve, this will cause the pump to run dry. Turn the power off to the driver. Close the pump discharge valve. Observe the run-down of the pump until full stop. ATTENTION If the rotor is jerky or suddenly stops, there is danger that the rotor has become blocked.

  • Page 69: Shutdown

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 7.6 SHUTDOWN CAUTION Heat build-up inside the pump. Damage to the shaft seal. • Thermal installations require sufficient post run time – with the heating/chilling source switched off. This is until the pumped fluid handled has normalized to ambient temperature.

  • Page 70: Ambient Temperature

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP If the plant is in an operational state, warm up and start the unit at monthly intervals (see SECTION 7.2-STARTUP for details). If the plant is not in an operational state, turn the unit over by hand a couple of times at monthly intervals, ensuring the shaft is not returned to the same position, to allow the bearings to rest in a different position every time.

  • Page 71: Maintenance

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 8. MAINTENANCE To perform the maintenance of the pump, no special (custom made) tools are needed. CAUTION Mishandling and improper installation of inflammable, toxic, or other substances that are harmful.

  • Page 72: Disassembly

    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 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Remove the lower case plug from the case. Remove the corresponding plugs from the bearing bracket. Remove the oil sight from the bearing bracket. Untighten and remove the hex bolts that fix the case to the case adapter. Remove the case.

  • Page 74: 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. a. Visual check all individual parts for any damage.

  • Page 75: Reassembly

    8.3.1 CPO Pump Reassembly – Packing Strips Option Please follow the steps detailed on this section to reassemble the CPO Pump Packing Strips Option. To reassemble the CPO Pump Mechanical Seal Option refer to Section 8.3.2 CPO Pump Reassembly –...
  • Page 76 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Insert the non-coupling side (radial) bearing on the shaft from the non-coupling side. Figure 8.1 Inserting the non-coupling side (radial) bearing on the shaft from the non-coupling side. ATTENTION The bearing must be heated to 100 °C / 212 °F.
  • Page 77 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Insert the axial retaining ring over the shaft from the coupling side. Figure 8.3 Inserting the axial retaining ring over the shaft from the coupling side. ATTENTION The axial retaining ring is inserted over the shaft and left there from assembly purposes. It will be fixed in place later on the reassembly process.
  • Page 78 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP ATTENTION The bearing must be heated to 100 °C / 212 °F. The bearing should be passed 3 times over the heater for demagnetization. This should be done for the proper installation and function of the bearing.
  • Page 79 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP ATTENTION Make sure that when the coupling side (axial) lockwasher is being inserted over the shaft, lockwasher´s latch located in its inner diameter fits into its corresponding groove on the shaft.
  • Page 80 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Place the corresponding O-ring on the coupling side (axial) bearing carrier. Figure 8.8 Placing the corresponding O-ring on the coupling side (axial) bearing carrier. Insert the axial labyrinth seal in the coupling side (axial) bearing carrier. Figure 8.9 Inserting the axial labyrinth seal in the coupling side (axial) bearing carrier.
  • Page 81 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Insert the coupling side (axial) bearing carrier over the rotor assembly from the coupling side until it reaches the coupling side (axial) bearing. Figure 8.10 Inserting the coupling side (axial) bearing carrier over the rotor from the coupling side. Place the axial retaining ring on the coupling side (axial) bearing carrier.
  • Page 82 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Place and tighten the socket head screws to fix the axial retaining ring to the coupling side (axial) bearing carrier. Figure 8.12 Placing and tightening the socket head screws to fix the axial retaining ring to the coupling side (axial) bearing carrier.
  • Page 83 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Place and tighten the hex bolts to secure the coupling side (axial) bearing carrier to the bearing bracket. Figure 8.14 Placing and tightening the hex bolts to secure the coupling side (axial) bearing carrier to the bearing bracket.
  • Page 84 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Insert the radial retaining ring over the shaft from the non-coupling side. Figure 8.16 Inserting the radial retaining ring over the shaft from the non-coupling side. Place the case adapter on the bearing bracket. Figure 8.17 Placing the case adapter on the bearing bracket.
  • Page 85 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Place and tighten the corresponding hex bolts to fix the case adapter to the bearing bracket. Figure 8.18 Placing and tightening the corresponding hex bolts to fix the case adapter to the bearing bracket. V3.082422...
  • Page 86 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Place the bearing bracket foot on the bearing bracket. Figure 8.19 Placing the bearing bracket foot on the bearing bracket. Place and tighten the hex bolts to fix the bearing bracket foot to the bearing bracket. Figure 8.20 Placing and tightening the hex bolts to fix the bearing bracket foot to the bearing bracket.
  • Page 87 If your pump is equipped with packing strips as a sealing option, continue onwards with step 20. If your pump is equipped with a mechanical seal as a sealing option, proceed to Section 8.3.2 CPO Pump Reassembly – Mechanical Seal Option step 20 for the proper reassembly procedure.
  • Page 88 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP b. Insert the first set of packing strips inside the stuffing box. Figure 8.22b Inserting the first set of packing strips inside the stuffing box. c. Insert the lantern ring inside the stuffing box until it reaches the first set of packing strips.
  • Page 89 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP d. Insert the second set of packing strips inside the stuffing box until they reach the lantern ring. Figure 8.22d Inserting the second set of packing strips inside the stuffing box until they reach the stuffing box. ATTENTION The number of packing strips in the first and second set of packing strips may vary in other to place the lantern ring directly below the flush line hole.
  • Page 90 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP f. Insert the stuffing box over the shaft until it reaches the case adapter. Figure 8.22f Inserting the stuffing box over the shaft until it reaches the case adapter. g.
  • Page 91 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP h. Place and tighten the hex bolts that fix both halves of the packing gland together. Figure 8.22h Placing and tightening the hex bolts that fix both halves of the packing gland together. ATTENTION The hex bolts that fix both halves of the packing gland together must be placed in opposite directions.
  • Page 92 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Insert the impeller on the shaft. Figure 8.23 Inserting the impeller on the shaft. Insert the case over the impeller until it reaches the case adapter. Figure 8.24 Inserting the case over the impeller until it reaches the case adapter. V3.082422...
  • Page 93 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Place and tighten the hex bolts to fix the case to the case adapter. Figure 8.25 Placing and tightening the hex bolts to fix the case to the case adapter. V3.082422...
  • Page 94 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Place the oil sight on the bearing bracket. Figure 8.26 Placing the oil sight on the bearing bracket. Place the corresponding plugs on the bearing bracket. Figure 8.27 Placing the corresponding plugs on the bearing bracket. V3.082422...
  • Page 95 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Place the lower case plug on the case. Figure 8.28 Placing the lower case plug on the case. Place the case discharge plug on the case. Figure 8.29 Placing the case discharge plug on the case. V3.082422...
  • Page 96 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Place the flush line connectors on the case and the stuffing box. Figure 8.30 Placing the flush line connectors on the case and the stuffing box. Place the flush line tubing on the flush line connectors. Figure 8.31 Placing the flush line tubing on the flush line connectors.
  • Page 97 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Place the case suction plug on the case. Figure 8.32 Placing the case suction plug on the case. If your pump is equipped with a cooling coil (optional), place the cooling coil on the bearing bracket.

  • Page 98: Cpo Pump Reassembly - Mechanical Seal Option

    The CPO pump assembly is complete Figure 8.34 Complete CPO pump assembly. 8.3.2 CPO Pump Reassembly – Mechanical Seal Option To install the mechanical seal sealing option, continue with the next step: a. Insert the mechanical seal over the shaft from the non-coupling side.
  • Page 99 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP b. Insert the corresponding studs on the stuffing box. Figure 8.22MSb Placing the corresponding studs on the stuffing box. c. Place the stuffing box on the case adapter. Figure 8.22MSc Placing the stuffing box on the case adapter.
  • Page 100 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP d. Push the mechanical seal towards the stuffing box. Figure 8.22MSd Pushing the mechanical seal towards the stuffing box. e. Insert the corresponding washer over the studs until they reach the mechanical seal. Figure 8.22MSe Inserting the corresponding washer over the studs until they reach the mechanical seal.

  • Page 101: Impeller Clearance Adjustment Values

    Figure 8.22MSf Placing and tightening the hex nuts to fix the mechanical seal to the stuffing box. After finishing these steps, refer to Section 8.3.1 CPO Pump – Packing Strips Option step 21 to continue with the rest of the pump´s assembly.

  • Page 102: Impeller Clearance Adjustment Procedure

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP The following figure illustrates the impeller clearance, which is the clearance between the impeller and the casing. Figure 8.36. Impeller clearance. 8.3.4 Impeller Clearance Adjustment Procedure 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.
  • Page 103 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP and then divide the dimension of the required clearance by 0.003 in (0.0762 mm), to determine how many marks the turning of the carrier has to cover. Once the angular displacement has been defined, make a second mark with the marker to ensure a correct adjustment.

  • Page 104: Spare Parts

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 9. SPARE PARTS The recommended quantity 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 Spare Parts...
  • Page 105 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP • Identity number from the list of spare parts. • Part number from the sectional drawing. • Quantity. Material storage of spare parts: • Store the spare parts in their original packaging. •...

  • Page 106: Parts Information

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP 10. PARTS INFORMATION Figure 10.1 Sectional Drawing CPO Pump Packing Strips Option. V3.082422...
  • Page 107 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Parts List CPO Pump – Packing Strips Option. ITEM DESCRIPTION ITEM DESCRIPTION NON-COUPLING SIDE (RADIAL) LABYRINTH CASE 423.1 SEAL CASE COVER 423.2 COUPLING SIDE (AXIAL) LABYRINTH SEAL CASE ADAPTER...
  • Page 108 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Figure 10.2 Sectional Drawing CPO Pump Mechanical Seal Option. V3.082422...
  • Page 109 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL PROCESS PUMP Parts List CPO Pump – Mechanical Seal Option. ITEM DESCRIPTION ITEM DESCRIPTION CASE 412.2 CASE COVER O-RING CASE COVER 412.3 BEARING CARRIER O-RING NON-COUPLING SIDE (RADIAL) LABYRINTH CASE ADAPTER 423.1...

  • Page 110: Troubleshooting Chart

    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 111 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 112: 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.

  • Page 113: Pump Operation Log

    HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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 114 HORIZONTAL END SUCTION, OPEN IMPELLER, SINGLE STAGE, HEAVY DUTY CHEMICAL 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 115 +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.

Table of Contents