AS 1851 14 1996 maintenance of fire protection equipment p

Title AS 1851.14-1996 Maintenance of fire protection equipment - Pumpset systems Licensee Licensed to LUU MINH LUAN on 25 Feb 2002 Conditions of use This is a licensed electronic copy of a document where copyright is owned or managed by Standards Australia International Your licence is a single user licence and the document may not be stored, transferred or otherwise distributed on a network You may also make one paper copy of this document if required Web Check-up Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited AS 1851.14—1996 Australian Standard Maintenance of fire protection equipment Part 14: Pumpset systems This Australian Standard was prepared by Committee FP/8, Fire Service Pumps It was approved on behalf of the Council of Standards Australia on 18 October 1996 and published on December 1996 The following interests are represented on Committee FP/8: The Association of Consulting Engineers Australia Association of Hydraulic Services Consultants Australia Australian Chamber of Commerce and Industry Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Australian Fire Authorities Council Australian Institute of Petroleum Australian Pump Manufacturers Association Confederation of Australian Industry Fire Protection Industry Association of Australia Insurance Council of Australia Railways of Australia Committee Review of Australian Standards To keep abreast of progress in industry, Australian Standards are subject to periodic review and are kept up to date by the issue of amendments or new editions as necessary It is important therefore that Standards users ensure that they are in possession of the latest editi on, and any amendments thereto Full details of all Australi an Standards and related publicati ons will be found in the Standards Australia Catalogue of Publi cations; this information is supplemented each month by the magazine ‘The Australian Standard’, which subscribing members receive, and which gives details of new publications, new editions and amendments, and of withdrawn Standards Suggestions for improvements to Australian Standards, addressed to the head office of Standards Australia, are welcomed Notification of any inaccuracy or ambiguity found in an Australian Standard should be made wit hout delay in order that the matter may be investigated and appropriate action taken This Standard was issued in draft form for comment as DR 95237 AS 1851.14—1996 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Australian Standard Maintenance of fire protection equipment Part 14: Pumpset systems PUBLISHED BY STANDARDS AUSTRALIA (STANDARDS ASSOCIATION OF AUSTRALIA) THE CRESCENT, HOMEBUSH, NSW 2140 ISBN 7337 0813 AS 1851.14— 1996 PREFACE This Standard was prepared by the Standards Australia Committee FP/8 on Fire Service Pumps and defines the concept of levels of inspection and servicing These levels are on a time-elapsed basis and range from weekly inspection (Level 1) to three-yearly inspection (Level 4) The Standard incorporates the necessary routine maintenance for fixed fire pumpset systems (referred to throughout as fire pumpsets) meeting the requirements of AS 2941, Fixed fire protection installations —Pumpset systems, and also details the precautions to be taken when systems are rendered inoperative Where standby generator sets are used to power electric motor driven fire pumpsets it is suggested that the standby generator drivers be maintained in accordance with this Standard Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited The term ‘informative’ has been used in this Standard to define the application of the appendix to which it applies An ‘informative’ appendix is only for information and guidance  Copyright STANDARDS AUSTRALIA Users of Standards are reminded that copyright subsists in all Standards Australi a publications and software Except where the Copyri ght Act allows and except where provided for below no publications or soft ware produced by Standards Austr alia may be reproduced, stored in a retri eval system in any form or transmitt ed by any means wit hout pri or permission in writ ing from Standards Austr alia Permission may be conditi onal on an appropriate royalt y payment Requests for permission and information on commercial soft ware royalt ies should be dir ected to the head off ice of Standards Australi a Standards Austr alia wil l permit up to 10 percent of the technical content pages of a Standard to be copied for use exclusively in-house by purchasers of the Standard without payment of a royalty or advice to Standards Austr alia Standards Austr alia will also permit the inclusion of its copyright material in computer software programs for no royalty payment provided such programs are used exclusively in-house by the creators of the programs Care should be taken to ensure that material used is from the current editi on of the Standard and that it is updated whenever the Standard is amended or revised The number and date of the Standard should therefore be clearly identif ied The use of materi al in pri nt form or in computer soft ware programs to be used commercially, with or wit hout payment, or in commercial contr acts is subject to the payment of a royalt y This policy may be varied by Standards Australi a at any ti me AS 1851.14 — 1996 CONTENTS Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Page FOREWORD SECTION SCOPE AND GENERAL 1.1 SCOPE 1.2 APPLICATION 1.3 REFERENCED DOCUMENTS 1.4 DEFINITIONS 5 SECTION PRECAUTIONS TO BE TAKEN WHEN A SYSTEM IS RENDERED INOPERATIVE 2.1 MANDATORY PRECAUTIONS 2.2 ADDITIONAL PRECAUTIONS 7 SECTION MAINTENANCE PROGRAM 3.1 GENERAL 3.2 FOLLOW-UP ACTION 8 SECTION MAINTENANCE DOCUMENTATION 4.1 GENERAL 4.2 MAINTENANCE SCHEDULE 4.3 LOG 4.4 PLANT REGISTER 4.5 PUMPSET PERFORMANCE LOG 9 9 SECTION INSPECTION, TESTING AND MAINTENANCE 5.1 GENERAL 10 5.2 LEVELS OF INSPECTION, TESTING AND MAINTENANCE 10 5.3 FREQUENCY 10 SECTION MAINTENANCE OF FIRE PUMPSET SYSTEMS 6.1 MAINTENANCE LEVEL 6.2 MAINTENANCE LEVEL 6.3 MAINTENANCE LEVEL 6.4 MAINTENANCE LEVEL 6.5 RECORDING 11 11 11 11 11 SECTION INSPECTION, TEST AND MAINTENANCE SCHEDULES 12 APPENDICES A SUMMARY OF INSPECTION, TEST AND MAINTENANCE SCHEDULES B TYPICAL LOGBOOK REPORTS C TYPICAL DOCUMENTATION D TROUBLESHOOTING CHARTS 19 21 27 30 AS 1851.14— 1996 FOREWORD Maximum protection from fire demands the utmost in reliability and performance from fire pumpsets, which are a critical component of a fire protection system To achieve this reliability it is essential that regular testing and maintenance of the fire pumpsets be carried out The generic procedures set out in this Standard have been prepared for general use and should be used to prepare and review the on-site requirements, in conjunction with other statutory requirements, to ensure that the intent of the Standard is being followed Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited It is necessary for fire pumpsets to operate when called upon and to this end it is expected that the pumps and pumproom/pumphouse will be kept clean and free from rubbish and debris First published as AS 1851.14 — 1996 AS 1851.14 — 1996 STANDARDS AUSTRALIA Australian Standard Maintenance of fire protection equipment Part 14: Pumpset systems S E C T I O N S CO P E A N D G E NE R A L 1.1 SCOPE This Standard sets out the routine operational inspection and testing procedures which should identify items requiring correction or maintenance (see Section 5) It also sets out the precautions to be taken when a system is rendered inoperative Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited NOTE: Although it is not classified as routine maintenance, a check on a regular basis is necessary to ensure that the installed system characteristics as shown on the block plan are adequate to protect the current occupancy 1.2 APPLICATION This Standard applies to fire pumpsets in fixed installations meeting the requirements of AS 2941 Although petrol-engine-driven pumpsets are not currently recognized, some may still be in operation and the maintenance requirements for pumpsets in this Standard may be used as a guideline The procedures set out in this Standard should be carried out, or be directly supervised, by personnel competent in this class of work 1.3 REFERENCED DOCUMENTS The following documents are referred to in this Standard: AS 1674 1674.1 1674.2 Safety in welding and allied processes Part 1: Fire precautions Part 2: Electrical 1851 1851.2 Maintenance of fire protection equipment Part 2: Fire hose reels 2118 2118.1 2118.2 2118.4 2118.5 2118.6 Automatic fire sprinkler systems Part 1: Standard Part 2: Wall wetting sprinklers (Drenchers) Part 4: Residential Part 5: Domestic Part 6: Combined sprinkler and hydrant 2419 2419.1 2419.2 Fire hydrant installations Part 1: System design, installation and commissioning Part 2: Fire hydrant valves 2441 Installation of fire hose reels 2484 2484.2 Fire— Glossary of terms Part 2: Fire protection and firefighting equipment COPYRIGHT AS 1851.14— 1996 AS 2676 2676.1 2676.2 Guide to the installation, maintenance, testing and replacement of secondary batteries in buildings Part 1: Vented cells Part 2: Sealed cells 2941 Fixed fire protection installations —Pumpset systems 1.4 DEFINITIONS For the purpose of this Standard, the definitions in AS 2941 and AS 2484.2 and those below apply 1.4.1 Domestic — pertaining to a detached house, row house, terrace house, town-house or villa unit 1.4.2 Pumpset —an assembly comprising a pump, a driver and ancillary components on a common mounting together with an integral or separate fire pump controller Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited 1.4.3 Residential — pertaining to a building containing two or more sole occupancy units and not exceeding four storeys in height COPYRIGHT AS 1851.14 — 1996 S E C T I O N P RE C A U T I ON S T O B E T AK E N W H E N A S Y S T EM I S R E N D E R E D I NO P E R AT I V E 2.1 MANDATORY PRECAUTIONS The following precautions shall be taken when a system required by statute is rendered partially or fully inoperative: (a) The building or facility management shall be notified (b) The fire station to which the system is connected, or the nearest fire station if there is no brigade connection, shall be notified before work commences and after work is completed NOTE: It is recommended that this practice be followed for all pumpset systems Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited 2.2 ADDITIONAL PRECAUTIONS The following precautions should be observed as far as is practicable: (a) Under all circumstances as much of the system as is practicable should be kept operational Should the work extend over a day, the system is to be reinstated as far as practicable at the end of each day (b) Where the system is to be left disconnected outside working hours the building/facility management should be notified Consideration should be give to the employment of a watchman at the premises for the period of disconnection Where possible, the electrics should be isolated in areas where the fire protection has been limited or withdrawn, especially outside working hours A warning and advice should be provided at the fire indicator panel (FIP) (where provided) or the fire pumpset The warning should include details of equipment outage, and contact name and phone number (c) Whenever practicable, system disconnection should be undertaken when production machinery is inoperative (d) Smoking in the vicinity of the affected areas should be prohibited for the period of disconnection (e) Those senior department/tenancy representatives affected should be notified so that fire extinguishing equipment can be held in special readiness for immediate use with a sufficient number of trained personnel available to use them if required (f) The insurer or insurance broker for the property should be notified (g) All needed equipment and materials should be on hand and all work possible should be done prior to isolation of the fire protection equipment (h) Hot cutting and welding should not be performed on a fire pumpset in situ or in an area where the fire protection equipment is impaired If such work is unavoidable it should be carried out in accordance with AS 1674.1 and AS 1674.2 (i) Simultaneous undertaking of other work that may further reduce the integrity of fire protection, or increase the fire risk, should be avoided (j) All sources of ignition should be avoided COPYRIGHT 19 AS 1851.14— 1996 APPENDIX A SUMMARY OF INSPECTION, TEST AND MAINTENANCE SCHEDULES (Informative) Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Item Component Table 7.1 Reference Function Water supply Tank level Valves Set and secured 10 — Monitoring 10 — Overhaul pressure reducing valve (PRV ) (if fitted) 16(a) — — Test non-return valves 16(b) — — Check air release valves 16(d) — — Overhaul pressure releasing/flow control valves (if fitted) 17 — — Pump controller Check cabinet for corrosion and ingress of dust, water and insects Batteries, chargers, and cabinets Maintain batteries in accordance with the appropriate part of AS 2676 Electric motor driven pumpsets Quarterly Operation Weekly Check battery is of correct type 5(a) Check battery for corrosion, damage and security 5(b) Check battery cabinet for corrosion and ingress of water, dust and insects 5(c) Check battery float voltage 5(d) Check safety guards 6(a) Check pump start signal and devices 6(b) Check pump operates at correct shut-off pressure 6(c) Check gland/seal and drain 6(d) Check vibration and noise 6(e) Check pump running alarms and lights 6(f) Check pump under load 6(g) Check operation of circulation relief valve 6(h) Check circuit-breakers/ fuses 13(a) — — Check motor starter condition 13(b) — — Check starter sequence 13(c) — — Run pump and check characteristics 13(d) — — Check phase fail alarm 13(e) — — COPYRIGHT Yearly — Yearly Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited AS 1851.14— 1996 Item Component Compressionignition engine 20 Table 7.1 Reference Function Check water, oil and fuel levels, and drive belts Check safety guards 9(a) Check pumpstart signal and devices 9(b) Check pump operates at correct shut-off pressure 9(c) Check gland/seal and drain 9(d) Check pump running alarm and lights 9(e) Check for noise and vibration 9(f) Check running speed 9(g) Check water, oil and fuel leaks 9(h) Check alternator/generator operation 9(i) Check engine stop mechanism 9(j) Check cooling water discharge 9(k) Check pump casing air relief valve 9(l) Yearly Check charger fail alarm 9(m) Check water, oil and fuel levels 9(n) Check operation of pressure relief/flow control valve 9(o) Check exhaust system for leaks 9(p) Check condensate drains 11(a) — Run motor for 30 11(b) — Check exhaust system for leaks 11(c) — Carry out manufacturer’s service procedures 18(a) — — — Ensure all safety guards are fitted 18(b) — — — 12 — — 16(c) — — Wiring Check alarm wiring Pipework Clean, inspect and repaint Recommission Recording Quarterly 7 10 Weekly 19 Return to operating condition Record maintenance/service in log 20 COPYRIGHT Yearly 21 AS 1851.14— 1996 APPENDIX B TYPICAL LOGBOOK REPORTS (Informative) This Appendix sets out examples of typical logbook reports, as follows: (a) Figure B1 (b) Figure B2 quarterly inspection, testing and maintenance (c) Figure B3 yearly inspection, testing and maintenance (d) Figure B4 three-yearly inspection, testing and maintenance Pumpsets record weekly inspection, testing and maintenance (Weekly inspection, testing and maintenance) Premises Maintenance organization Address Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Telephone Place in box where item is satisfactory Place × in box where item is unsatisfactory Write N/A where not applicable NO TE: Give details of all unsatisfactory items in Report section Week Weekly checks Storage tank water level Isolation valves Pump controller cabinet condition Battery correct type Battery corrosion, damage and security Battery cabinet condition Battery float voltage Electric motor driven pumpset Pump start and pressure devices Vibration and noise Pump running alarms and lights Pump under load Pressure relief/flow control valve FIGURE B1 (in part) TYPICAL LOGBOOK REPORT— WEEKLY INSPECTION, TESTING AND MAINTENANCE COPYRIGHT AS 1851.14— 1996 22 Week Weekly checks CI engine driven pumpset Water, oil, fuel levels and drive belts Pump start devices and pressure Gland/seal and drain Pump running alarm and lights Vibration and noise Running speed Water, oil and fuel leaks Alternator/generatoroperation Engine stop mechanism Cooling water discharge Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Pump casing air relief valve Charger fail alarm Pressure relief/flow control valve Water, oil and fuel levels Service person Signed Date (Weekly) Report(s): Signed: For owner or agent Pumpsets identification (if necessary) Date: Location Date of manufacture Date in service FIGURE B1 (in part) TYPICAL LOGBOOK REPORT— WEEKLY INSPECTION, TESTING AND MAINTENANCE COPYRIGHT 23 Pumpsets record AS 1851.14— 1996 (Quarterly inspection, testing and maintenance) Premises Maintenance organization Address Telephone Place in box where item is satisfactory Place × in box where item is unsatisfactory Write N/A where not applicable NO TE: Give details of all unsatisfactory items in Report section Quarter Quarterly All weekly checks Check isolation valves Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Check non-return valves Check pressure relief/flow control valves CI engine Check condensate drains Run engine 30 Check exhaust system leaks Check exhaust system guards Service person Signed Date Report(s): Signed: For owner or agent Pumpsets identification (if necessary) Date: Location Date of manufacture Date in service FIGURE B2 TYPICAL LOGBOOK REPORT— QUARTERLY INSPECTION, TESTING AND MAINTENANCE COPYRIGHT AS 1851.14— 1996 24 Pumpsets record (Yearly inspection, testing and maintenance) Premises Maintenance organization Address Telephone Place in box where item is satisfactory Place × in box where item is unsatisfactory Write N/A where not applicable NO TE: Give details of all unsatisfactory items in Report section Yearly All weekly and quarterly checks Alarm wiring and connectors Electric motor driven pumpsets Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Check circuit-breakers/fuses Check motor starter Check starting sequence Run pumpset for 30 Check phase fail alarm CI engine driven pumpsets Service as per AS 2676 Check, clean or replace filters Inspect and clean heat exchanger strainer Run pumpset for 30 Flush cooling system CI engine room Check room heating Check ventilation Valves and pipework Overhaul PRVs Test non-return valves Clean, inspect and repaint piping Check air release valve Overhaul pressure reducing/flow control valves FIGURE B3 (in part) TYPICAL LOGBOOK REPORT— YEARLY INSPECTION, TESTING AND MAINTENANCE COPYRIGHT 25 AS 1851.14— 1996 Service person Signed Date Report(s): Signed: For owner or agent Pumpsets identification (if necessary) Date: Location Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Date of manufacture Date in service FIGURE B3 (in part) TYPICAL LOGBOOK REPORT— YEARLY INSPECTION, TESTING AND MAINTENANCE COPYRIGHT AS 1851.14— 1996 26 Pumpsets record (Three-yearly inspection, testing and maintenance) Premises Maintenance organization Address Telephone Place in box where item is satisfactory Place × in box where item is unsatisfactory Write N/A where not applicable NO TE: Give details of all unsatisfactory items in Report section Three-yearly All weekly, quarterly and yearly checks CI driver Service Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Check all safety guards Service person Signed Date Report(s): Signed: For owner or agent Pumpsets identification (if necessary) Date: Location Date of manufacture Date in service FIGURE B4 TYPICAL LOGBOOK REPORT— THREE-YEARLY INSPECTION, TESTING AND MAINTENANCE COPYRIGHT 27 AS 1851.14— 1996 APPENDIX C TYPICAL DOCUMENTATION (Informative) Plant item no Description Location Remarks FP1 Electric sprinkler pump Fire pump room, Basement — FP2 Diesel sprinkler pump Fire pump room, Basement — FP3 Electric hydrant pump Roof level Access via main plant room FP4 Diesel hydrant pump Roof level Access via main plant room TYPICAL PLANT REGISTER Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited FIGURE C1 COPYRIGHT AS 1851.14—1996 28 PUMPSET DETAILS Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Pumpset serial No Pump: Make Model Serial no Test no Date Impeller type Pipe ID at gauge points — Suction Discharge Barometer Ambient temperature Rated flow Rated pressure Rated speed Shut-off head Driver: Make Frame size Serial no Rated output Dia mm mm Hg °C PUMPSET HISTORY Flow Date L/min Pressure Discharge kPa FIGURE C2 Suction kPa Speed Total kPa Measured rpm Driver Phase volts V Phase amps A TYPICAL MOTOR DRIVEN PUMPSET PERFORMANCE LOG COPYRIGHT Remarks L/min kPa rpm kPa kW 29 AS 1851.14—1996 PUMPSET DETAILS Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Pumpset serial No Pump: Make Model Serial no Test no Date Impeller type Pipe DN at gauge points— Suction Discharge Barometer Ambient temperature Rated flow Rated pressure Rated speed Shut-off head Driver: Make Model Cooling Power Normal oil pressure range Normal engine temperature range Dia mm mm Hg °C Date PUMPSET HISTORY Flow Date L/min Pressure Discharge kPa Suction kPa FIGURE C3 Speed Total kPa Measured rpm Driver Oil pressure kPa Temperature °C Current A TYPICAL ENGINE DRIVEN PUMPSET PERFORMANCE LOG COPYRIGHT L/min kPa rpm kPa Remarks kW kPa °C AS 1851.14— 1996 30 APPENDIX D TROUBLESHOOTING CHARTS Misalignment of pump and dri ver Thrust beari ng housing not properly aligned in beari ng frame or beari ng cart ri dge Excessive piping loads acting on pump casing Foundations not ri gid Impeller fr ont or back axial running clearance set too tight Clogged or part ially clogged impeller passages Clogging between rotating and stationary parts due to separati on or sett ling of pumped solids Bent pump or dri ver shaft Rotating part rubbing on stati onary part Bearings worn Impeller damaged or worn Shaft sleeve worn or scored at the packing Shaft running off centre due to worn bearings or misalignment Impeller, coupling or driver out of balance resulti ng in vibrati on Excessive axial running clearance at back of impeller due to wear Packing improperl y installed Incorr ect type of packing for operati ng conditi ons Packing gland too tight resulti ng in no fl ow of sealing liquid to lubri cate packing FIGURE D1 (in part) PUMPSET MECHANICAL TROUBLES COPYRIGHT Pump does not start or does not come up to speed Pump overheats or seizes Bearings have short life Pump vibrates or is noisy Packing has short life Stuffing box leaks excessively Pump requires excessive power Pump loses prime after starting Insufficient pressure developed Mechanical troubles Insufficient capacity delivered Pump does not deliver liquid Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited (Informative) Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Excessive clearance between throat bushing or protector plate and shaft sleeve, causing packing to be forced into pump interior Stuffing box sealing liquid supply pressure too low Dirt or gri t in sealing liquid, leading to scori ng of shaft sleeve Failure to provide cooling liquid to water-cooled stuff ing box Operation at very low capacit y Incorr ect orientation of thrust beari ng clamp ri ng Excessive beari ng lubricant or lack of cooling, causing excessive bearing temperatures Lack of, or insuff icient, beari ng lubri cati on Improper installation of anti -f ri ction bearings (damage during assembly, incorr ect assembly, use of unmatched beari ngs as part s, etc.) Dirt gett ing into beari ngs or lubricant Rusting of bearings due to water getti ng into housing Brinnelling of bearing races due to high ambient vibration produced by nearby equipment Excessive cooling of water- cooled beari ng housings result ing in condensation of atmospheric moisture Incorr ect bearing lubricant used Impeller loose on shaft due to improper assembly Packing worn and requires replacement Incorr ect motor voltage or turbine steam pressure Coupling failed FIGURE D1 (in part) PUMPSET MECHANICAL TROUBLES COPYRIGHT Pump does not start or does not come up to speed Pump overheats or seizes Bearings have short life Pump vibrates or is noisy Packing has short life Stuffing box leaks excessively Pump requires excessive power Pump loses prime after starting Insufficient pressure developed Mechanical troubles Insufficient capacity delivered AS 1851.14— 1996 Pump does not deliver liquid 31 Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited Pump not pri med Pump or suction pipe not completely fi lled wit h liquid Air pocket in suction line Air leaks into suction line Air leaks into pump at stuff ing box Sealing liquid not being supplied at lantern ri ng Lantern ring improperl y located in stuff ing box allowing packing to plug sealing liquid supply ports Excessive amount of air or gas in liquid Inlet or suction pipe insuff iciently submerged or incorrectly designed Suction lift higher than that for which pump is designed Excessive fri ctional head loss in sucti on piping Water leakage fr om suction piping Insuff icient margin between sucti on pressure and vapour pressure Foot valve not sealing properl y Excessive pre-r otation of fl uid in sucti on pipe immediately upstream of impeller Incorr ect distri buti on of flow in suction manifolds of mult iple pump systems Suction valve closed or not fully open FIGURE D2 (in part) PUMPSET SUCTION AND SYSTEM TROUBLES COPYRIGHT Pump does not start or does not come up to speed Pump overheats or seizes Bearings have short life Pump vibrates or is noisy Packing has short life Stuffing box leaks excessively Pump requires excessive power Pump loses prime after starting Insufficient pressure developed Suction troubles Insufficient capacity delivered 32 Pump does not deliver liquid AS 1851.14— 1996 Pump speed too low Pump speed too high Insuff icient dri ver torque to bring pump up to speed Wr ong direction of rotation Impeller diameter too large Impeller diameter too small Total head of system higher than design head of pump Total head of system lower than pump design head Discharge valve closed or incorrectly set Pump discharge relief valve open Operation at low capacit y Parallel operation of pumps which are not matched to such operation Excessive impeller front clearance or worn rear rings causing increased internal recirculation Resonance of piping system FIGURE D2 (in part) PUMPSET SUCTION AND SYSTEM TROUBLES COPYRIGHT Pump does not start or does not come up to speed Pump overheats or seizes Bearings have short life Pump vibrates or is noisy Packing has short life Stuffing box leaks excessively Pump requires excessive power Pump loses prime after starting Insufficient pressure developed Insufficient capacity delivered System troubles Licensed to LUU MINH LUAN on 25 Feb 2002 Single user licence only Storage, distribution or use on network prohibited AS 1851.14— 1996 Pump does not deliver liquid 33 ... network prohibited AS 1851. 14? ? ?1996 Australian Standard Maintenance of fire protection equipment Part 14: Pumpset systems This Australian Standard was prepared by Committee FP/8, Fire Service Pumps... FP1 Electric sprinkler pump Fire pump room, Basement — FP2 Diesel sprinkler pump Fire pump room, Basement — FP3 Electric hydrant pump Roof level Access via main plant room FP4 Diesel hydrant pump... commissioning Part 2: Fire hydrant valves 2441 Installation of fire hose reels 2484 2484.2 Fire? ?? Glossary of terms Part 2: Fire protection and firefighting equipment COPYRIGHT AS 1851. 14? ?? 1996 AS 2676