® 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.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® CONTENTS PAGE PAGE 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 ..........................
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® INDEX PAGE PAGE 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) ...........................
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 1 INTRODUCTION AND SAFETY and Approvals. To confirm the Approvals applying and if the product is CE marked, check the serial number plate markings and the Certification. (See section 9, Certification.) 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.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 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. This symbol indicates safety instructions where non-compliance would affect personal safety and could result in loss of life.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 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.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 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) If an explosive atmosphere exists during the installation, do not attempt to check the direction of rotation by starting the pump unfilled. Even a short run time may give a high temperature resulting from contact between rotating and stationary components.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 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. 1.7 Warning labels summary 1.7.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 1.9 Noise level The figures are indicative only, they are subject to a +3 dB tolerance, and cannot be guaranteed. When pump noise level exceeds 85 dB(A) attention must be given to prevailing Health and Safety Legislation, to limit the exposure of plant operating personnel to the noise. The usual approach is to control exposure time to the noise or to enclose the machine to reduce emitted sound.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 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. Later claims cannot be accepted.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 3.3.5 Bearing housing Two grease nipples enable grease lubricated bearings to be replenished between major service intervals. 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. It has the following horizontal configuration: 3.3.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 4 INSTALLATION Refer to the general arrangement drawing for the pump set. e) If the pump is driven via a universal joint drive shaft there may be a requirement to offset the pump shaft with respect to the driver to optimize the universal joint drive shaft bearing life. This offset will typically be in the range 0 to 4 degrees depending on shaft design. Please consult the separate User Instructions before installation.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 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. If necessary, align the motor to the pump, not the pump to the motor.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® • • • 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 Typical design – flooded suction Discharge isolating valve Non return valve Concentric conical reducer Eccentric conical reducer Suction isolating valve >5D The table in 4.5.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 4.5.3 Maximum forces and moments allowed on the pump suction and discharge flanges of horizontal shaft pumps Type and size 8-UB-1 Fx 7.35 (1653) Fy 5.78 (1299) Maximum forces (F) in kN (lbf) and maximum moments (M) in kNm (lbf·ft) Suction Discharge Fz Mx My Mz Fx Fy Fz Mx 4.20 4.25 2.25 3.00 3.84 4.40 3.20 2.20 (944) (3134) (1659) (2212) (863) (989) (719) (1622) Notes: 1) F = External force (tension or compression).
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 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. 4.5.6 Final checks Check the tightness of all bolts in the suction and discharge pipework. Check also the tightness of all foundation bolts. 4.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 5.2 Pump lubricants 5.3 Direction of rotation 5.2.1 Recommended grease lubricants Grease nipples Grease NLGI 2 * NLGI 3 ** Temp.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 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. If in doubt please consult Flowserve. Possible priming points To vacuum pump 5.7.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® If bearing temperatures are to be monitored it is essential that a benchmark temperature is recorded at the commissioning stage and after the bearing temperature has stabilized.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 5.9.4 Net positive suction head (NPSHA) NPSH available (NPSHA) is a measure of the head available in the pumped liquid, above its vapour pressure, at the pump suction branch. NPSH required (NPSHR) is a measure of the head required in the pumped liquid, above its vapour pressure, to prevent the pump from cavitating. It is important that NPSHA > NPSHR. The margin between NPSHA > NPSHR should be as large as possible.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 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. b) Ensure equipment complies with the recommendations in this manual. c) Contact Flowserve if the problem persists. 6.2.1 Routine inspection (daily/weekly) The following checks should be made and the appropriate action taken to remedy any deviations: a) Check operating behaviour.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 6.3 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. d) It is important not to under or over grease the bearings as this will lead to over heating and premature failure.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® To dismantle the pump consult the sectional drawings. See section 8, Parts lists and drawings. 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: • Open ended spanners (wrenches) to suit up to 7 M 24 ( /8 in.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® q) Remove impellers, casing rings, diaphragm plate complete with its bush together with the impeller key. d) Bearing seals are not totally leak free devices. Oil from these may cause staining adjacent to the bearings. 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.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® j) k) l) m) n) 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. Take care to protect the sleeve O-rings (when fitted) from damage on the shaft threads.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 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. b) Tap horizontal flange over locating dowels to accurately position the top half casing and torque up all horizontal flange bolts. c) Check for free rotation.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 7 FAULTS; CAUSES AND REMEDIES FAULT SYMPTOM Pump overheats and seizes ⇓ Bearings have short life ⇓ Pump vibrates or is noisy ⇓ Mechanical seal has short life ⇓ Mechanical seal leaks excessivel y ⇓ Pump requires excessive power ⇓ Pump loses prime after starting ⇓ Insufficient pressure developed ⇓ Insufficient capacity delivered ⇓ Pump does not deliver liquid ⇓ PROBABLE CAUSES z Pump not primed. Check complete filling. POSSIBLE REMEDIES A.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® FAULT SYMPTOM Pump overheats and seizes ⇓ Bearings have short life ⇓ Pump vibrates or is noisy ⇓ Mechanical seal has short life ⇓ Mechanical seal leaks excessivel y ⇓ Pump requires excessive power ⇓ Pump loses prime after starting ⇓ Insufficient pressure developed ⇓ Insufficient capacity delivered ⇓ Pump does not deliver liquid ⇓ PROBABLE CAUSES POSSIBLE REMEDIES Impeller damaged or eroded. Replace impeller and check reason.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 8 PARTS LISTS AND DRAWINGS 8.1 Sectional drawings – 8-UB-1 grease lubricated, gland packed 3 4 5 6 7 8 17 15 13 14 15A 9 12 16 18 21 29 30 25 26 27 28 'Z' 1 2 20A 10 11 19 20 22 23 24 25 30 Taken from A767/112 8.1.1 Parts list Ref. no.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® 8.1.2 Options 8.1.3 Options parts list Ref. no. 46 45 View on ‘Z’ impeller ring Description 34 Mechanical seal 35 Mechanical seal cover 36 Gasket – mechanical seal cover 37 Socket head screw for 38 (a) 38 Seal abutment ring (a) 39 Cartridge seal assembly 40 Impeller nut 45 Impeller wear ring 46 Socket head screw for 45 a) When fitted, depends on type of mechanical seal. 8.
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. 10 OTHER RELEVANT DOCUMENTATION AND MANUALS 10.
UB USER INSTRUCTIONS ENGLISH 71569247 07-04 ® FLOWSERVE REGIONAL SALES OFFICES: USA and Canada Flowserve Corporation (Pump Division) 5215 North O’Connor Blvd.
