Flowserve Centrifugal Pump 8-UB-1 Installation & Operation Instruction
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Flowserve Centrifugal Pump 8-UB-1 Installation & Operation Instruction

Flowserve Centrifugal Pump 8-UB-1 Installation & Operation Instruction

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®
Pump Division
Type:
8-UB-1
CENTRIFUGAL PUMP
USER INSTRUCTIONS:
INSTALLATION, OPERATION, MAINTENANCE
PCN=71569247 07-04(E)
(supercedes 6176/6511)
These instructions must be read prior to installing,
operating, using and maintaining this equipment.

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Summary of Contents for Flowserve Centrifugal Pump 8-UB-1

  • Page 1 ® Pump Division Type: 8-UB-1 CENTRIFUGAL PUMP USER INSTRUCTIONS: INSTALLATION, OPERATION, MAINTENANCE PCN=71569247 07-04(E) (supercedes 6176/6511) These instructions must be read prior to installing, operating, using and maintaining this equipment.

  • Page 2: Table Of Contents

    ® CONTENTS 1 INTRODUCTION AND SAFETY ... 4 1.1 General ... 4 1.2 CE marking and approvals... 4 1.3 Disclaimer ... 4 1.4 Copyright... 4 1.5 Duty conditions... 4 1.6 Safety ... 5 1.7 Warning labels summary ... 8 1.8 Specific machine performance... 8 1.9 Noise level...
  • Page 3 ® INDEX Additional sources (10.3) ... 31 Alignment of shafting (4.2, 4.4 and 4.6) Assembly (6.10)... 24 ATEX marking (1.6.4.2) ... 7 CE marking and approvals (1.2)... 4 Certification (9) ... 31 Change notes (10.2) ... 31 Clearances (6.7, Renewal clearances)... 23 Commissioning and operation (5)...

  • Page 4: Introduction And Safety

    ® 1 INTRODUCTION AND SAFETY 1.1 General These Instructions must always be kept close to the product's operating location or directly with the product. Flowserve products are designed, developed and manufactured with state-of-the-art technologies in modern facilities. The unit is produced with great care and commitment to continuous quality control, utilising sophisticated quality techniques, and safety requirements.

  • Page 5: Safety

    ® 1.6 Safety 1.6.1 Summary of safety markings These User Instructions contain specific safety markings where non-observance of an instruction would cause hazards. The specific safety markings are: This symbol indicates electrical safety instructions where non-compliance will involve a high risk to personal safety or the loss of life.
  • Page 6 ® HOT (and cold) PARTS If hot or freezing components or auxiliary heating supplies can present a danger to operators and persons entering the immediate area action must be taken to avoid accidental contact. If complete protection is not possible, the machine access must be limited to maintenance staff only, with clear visual warnings and indicators to those entering the immediate area.
  • Page 7 ® 1.6.4.2 Marking An example of ATEX equipment marking is shown below. The actual classification of the pump will be engraved on the nameplate. II 2 GD c 135 ºC (T4) Equipment Group I = Mining II = Non-mining Category 2 or M2 = High level protection 3 = normal level of protection Gas and/or Dust...

  • Page 8: Duty Conditions

    ® To avoid the potential hazard from random induced current generating a spark, the earth contact on the baseplate must be used. Avoid electrostatic charge: do not rub non-metallic surfaces with a dry cloth; ensure cloth is damp. The coupling must be selected to comply with 94/9/EC and correct alignment must be maintained.

  • Page 9: Safety

    Typical sound pressure level, dBA, L Motor size 3550 r/min and speed Pump and Pump motor only kW (hp) <0.55 (<0.75) 71 (88) 66 (83) 0.75 (1) 74 (91) 66 (83) 1.1 (1.5) 74 (91) 68 (85) 1.5 (2)

  • Page 10: Transport And Storage

    ® 2 TRANSPORT AND STORAGE 2.1 Consignment receipt and unpacking Immediately after receipt of the equipment it must be checked against the delivery and shipping documents for its completeness and that there has been no damage in transportation. Any shortage and or damage must be reported immediately to Flowserve Pump Division and received in writing within one month of receipt of the equipment.

  • Page 11: Pump Description

    ® 3 PUMP DESCRIPTION 3.1 Configurations The 8-UB-1pump is a horizontal split casing two stage volute type centrifugal pump designed for water works, drainage, general service and circulating applications. It can be used with motor, steam turbine and gasoline or diesel engine drive.

  • Page 12: Installation

    ® 4 INSTALLATION Equipment operated in hazardous locations must comply with the relevant explosion protection regulations. See section 1.6.4, Products used in potentially explosive atmospheres. 4.1 Location The pump should be located to allow room for access, ventilation, maintenance and inspection with ample headroom for lifting and should be as close as practicable to the supply of liquid to be pumped.

  • Page 13: Piping

    ® 4.4.2 Alignment methods Ensure pump and driver are isolated electrically and the half couplings are disconnected. The alignment MUST be checked. Although the pump will have been aligned at the factory it is most likely that this alignment will have been disturbed during transportation or handling.
  • Page 14 ® • Prevent excessive external pipe load • Never draw piping into place by applying force to pump flange connections • Do not mount expansion joints so that their force, due to internal pressure, acts on the pump flange The table in 4.5.3 summarizes the maximum forces and moments allowed on horizontal shaft pump casings.
  • Page 15 ® 4.5.3 Maximum forces and moments allowed on the pump suction and discharge flanges of horizontal shaft pumps Maximum forces (F) in kN (lbf) and maximum moments (M) in kNm (lbf·ft) Type and size 7.35 5.78 8-UB-1 (1653) (1299) Notes: 1) F = External force (tension or compression).

  • Page 16: Final Shaft Alignment Check

    ® Special seals may require different auxiliary piping to that described above. Consult separate User Instructions and or Flowserve if unsure of correct method or arrangement. For pumping hot liquids, to avoid seal damage, it is recommended that any external flush/cooling supply be continued after stopping the pump.

  • Page 17: Pump Lubricants

    ® 5.2 Pump lubricants 5.2.1 Recommended grease lubricants Grease nipples Grease NLGI 2 * Temp. range ºC -20 to +100 (ºF) (-4 to +212) Designation K2K-20 according to DIN Energrease LS2 Glissando 20 Elfmulti 2 Esso Beacon 2 Mobil Mobilux 2 Rembrandt 2 Alvania Fett G2 Shell...

  • Page 18: Starting The Pump

    ® 5.5.2 Suction lift with foot valve fitted Fill suction pipe and casing with liquid at a pressure of 1 to 2 bar from an external source. Vent as described in section 5.5.1. 5.5.3 Suction lift without foot valve Pump casing vents on the suction volute must be connected to an external vacuum pump priming system.

  • Page 19: Stopping And Shutdown

    Check actual capability of the driver and control/starting system before commissioning. Maximum stop/starts Motor rating kW (hp) Up to 15 (20) Between 15 (20) and 90 (120) Above 90 (120)

  • Page 20: Maintenance

    ® 5.9.4 Net positive suction head (NPSH NPSH available (NPSH ) is a measure of the head available in the pumped liquid, above its vapour pressure, at the pump suction branch. NPSH required (NPSH ) is a measure of the head required in the pumped liquid, above its vapour pressure, to prevent the pump from cavitating.
  • Page 21 ® Our specialist service personnel can help with preventative maintenance records and provide condition monitoring for temperature and vibration to identify the onset of potential problems. If any problems are found the following sequence of actions should take place: a) Refer to section 7, Faults; causes and remedies, for fault diagnosis.

  • Page 22: Spare Parts

    ® To remove badly oxidized grease that refuses to come off: a) Support the rotor in a vertical position and immerse the bearing in hot kerosene or a mixture of alcohol and light mineral solvent. b) Gently spin the bearing outer ring. c) Dry and reflush the bearing with clean light oil.

  • Page 23: Tools Required

    ® 1 – impeller 1 – diaphragm bush (optional: 2 - mechanical seals 2 - impeller wear rings) 6.5 Tools required A typical range of tools that will be required to maintain these pumps is listed below. Readily available in standard tool kits, and dependent on pump size: •...

  • Page 24: Examination Of Parts

    ® q) Remove impellers, casing rings, diaphragm plate complete with its bush together with the impeller key. If impellers prove difficult to remove, the use of heat is permissible. Refer to Section 1.6, Safety, APPLYING HEAT TO REMOVE IMPELLER, for more details. If it is required to remove the diaphragm plate bush then remove the 4 countersunk screws and push out the bush.
  • Page 25 ® The rotor always rotates towards the expanding section of the volute c) The diaphragm plate complete with its bush must be fitted on to the shaft between the two impellers. d) Fit the two shaft sleeves, O-rings (when fitted) and shaft nuts and lightly secure the impellers on the shaft.
  • Page 26 ® 6.10.5 Casing upper half a) Assemble the casing upper half over the lower half. Take care to ensure the renewable rings and diaphragm plate are correctly located in the upper half bores and that dowel holes pick up the locating dowels in the lower half.

  • Page 27: Faults; Causes And Remedies

    ® 7 FAULTS; CAUSES AND REMEDIES FAULT SYMPTOM P u m p o v e r h e a t s a n d s e i z e s ⇓ ⇓ ⇓ ⇓ B e a r i n g s h a v e s h o r t l i f e ⇓...
  • Page 28 ® FAULT SYMPTOM P u m p o v e r h e a t s a n d s e i z e s ⇓ ⇓ ⇓ ⇓ B e a r i n g s h a v e s h o r t l i f e ⇓...

  • Page 29: Parts Lists And Drawings

    ® 8 PARTS LISTS AND DRAWINGS 8.1 Sectional drawings – 8-UB-1 grease lubricated, gland packed 8.1.1 Parts list Ref. no. Description Nameplate Bearing locknut Lockwasher – bearing locknut Ball bearing - thrust Shaft collar Gland Lantern ring Gland packing Casing – upper half Casing –...

  • Page 30: General Arrangement Drawing

    ® 8.1.2 Options View on ‘Z’ impeller ring Component mechanical seal Cartridge mechanical seal UB USER INSTRUCTIONS ENGLISH 71569247 07-04 8.1.3 Options parts list Ref. no. Description Mechanical seal Mechanical seal cover Gasket – mechanical seal cover Socket head screw for 38 (a) Seal abutment ring (a) Cartridge seal assembly Impeller nut...

  • Page 31: Certification

    UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 9 CERTIFICATION Certificates determined from the Contract requirements are provided with these Instructions where applicable. Examples are certificates for CE marking, ATEX marking etc. If required, copies of other certificates sent separately to the Purchaser should be obtained from the Purchaser for retention with these User Instructions.
  • Page 32 ® REGIONAL SALES OFFICES: USA and Canada Flowserve Corporation (Pump Division) 5215 North O’Connor Blvd. Suite 2300 Irving, Texas 75039, USA Tel +1 972 443 6500 Toll free 800 728 PUMP (7867) Fax +1 972 443 6800 Europe, Middle East and Africa Flowserve Limited (Pump Division) Harley House, 94 Hare Lane Claygate, Esher, Surrey KT10 0RB...

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