Standard
Track updates
AS 2941-2013
[Current]Fixed fire protection installations — Pumpset systems
Specifies requirements for totally independent pumpset systems for use with fixed fire protection installations, such as sprinkler, hydrant, water spray, and hose reel systems.
Published: 18/11/2013
Pages: 106
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
1 Scope and general
1.1 Scope
1.2 Objective
1.3 Normative references
1.4 Definitions
2 Water supplies
2.1 General
2.2 Acceptable sources of supply
2.3 Quality of water
2.4 Flooded suction
2.5 Suction
2.5.1 Suction size
2.5.2 Devices on suction piping
2.6 Supply from natural sources
2.6.1 General
2.6.2 Slope of inlet
2.6.3 Diameters of pipes
2.6.4 Depth of inlet
2.6.5 Depth of water
2.6.6 Dimensions of suction and settling chambers
2.6.7 Inlet screen
3 General requirements for fire protection pumpsets
3.1 Performance characteristics
3.2 Pump types
3.2.1 Fire protection pumps
3.2.2 Ancillary pumps
3.3 Types of drivers
3.4 Pump/driver connection
3.5 Baseplate
3.6 Pipework
3.6.1 Pressure consideration
3.6.1.1 Pressure applied
3.6.1.2 Hydrostatic pressure test
3.6.2 Pipe sizes
3.6.3 Reducers
3.6.4 Flanges
3.6.5 Screwed joints
3.6.6 Grooved or shouldered joints
3.6.7 Flexible connections
3.6.8 Support of suction and discharge piping
3.7 Valves
3.7.1 Non-return valve
3.7.2 Pump-isolating valves
3.7.3 Air release valves
3.7.4 Circulation-relief valve
3.7.4.1 General
3.7.4.2 Sizing of circulation-relief valve
3.7.4.3 Pressure setting
3.7.5 Pressure-relief valves
3.7.5.1 General
3.7.5.2 Valve type
3.7.5.3 Pressure setting
3.7.5.4 Location
3.7.5.5 Discharge
3.8 Visibility of discharge
3.9 Pressure gauges
3.9.1 General
3.9.2 Discharge pressure gauge
3.9.3 Suction pressure gauge
3.10 Flow-measuring devices
3.10.1 General
3.10.2 Capacity
3.10.3 Discharge
3.11 Starting and control
3.11.1 Arrangement
3.11.2 Automatic pump starting
3.11.3 Warning sign
3.12 Electrical requirements
3.12.1 General
3.12.2 Electronic component rating
3.12.3 Alternative power supply
3.13 Marking
3.13.1 Method of marking
3.13.2 Pumpset
3.13.3 Pump
3.13.4 Driver
3.13.5 Controller
3.13.6 Battery
3.14 Pumpset painting
3.15 Pumpset manuals
3.16 Pumpset configurations
3.17 Pump houses and pump rooms
4 Specific requirements for fire protection pumps
4.1 General
4.1.1 General design
4.1.2 Materials of construction
4.1.3 Performance
4.1.4 Pump casing
4.1.5 Water passages
4.1.6 Impellers
4.1.7 Shaft
4.1.8 Bearings
4.1.9 Shaft seal
4.1.10 Direction of rotation indication
4.1.11 Vent, pressure gauge and drain
4.1.12 Wear rings
4.2 End-suction pumps
4.2.1 General design
4.2.2 Casing
4.2.3 Impeller
4.2.4 Coupling
4.3 Axially split case pumps (Horizontal or vertical shaft)
4.3.1 Casing
4.3.2 Impeller
4.3.3 Shaft
4.4 Multistage centrifugal pumps
4.4.1 Performance
4.4.2 Casing
4.4.3 Impellers
4.4.4 Shaft
4.5 Turbine type centrifugal pumps (Vertical shaft)
4.5.1 Discharge head assembly
4.5.2 Bowl assembly
4.5.3 Impellers
4.5.4 Column pipes
4.5.5 Shafts
4.5.6 Line-shaft coupling
4.5.7 Line-shaft bearings
4.5.8 Line-shaft enclosing tube
4.5.9 Oil lubrication system
4.5.10 Automatic air-release valve
4.6 Drivers for vertical turbine pumps
4.6.1 Permissible types
4.6.2 Provision for axial thrust
4.6.3 Provision for non-reversing ratchet
4.6.4 Right-angle gear drives
4.7 Positive displacement pumps for fire protection applications
4.7.1 General
4.7.2 Materials of construction
4.7.3 Pump seals
4.7.4 Pressure-relief valve
4.7.5 Pressure unloader valve
4.7.5.1 General
4.7.5.2 Automatic operation
4.7.5.3 Manual operation
4.7.6 Pressure-relief and unloader valve discharge
4.7.7 NPSHA
4.7.8 Gauges
4.7.9 Non-return valve
4.7.10 Suction strainer
4.7.11 Drivers and controllers
4.7.12 Driver connection and alignment
4.7.13 Baseplate and plinth
4.7.14 Flow testing
5 Requirements for pressure maintenance pumps
5.1 General
5.2 General requirements for jockey pumps
5.3 General requirements for jacking pumps
6 Fire hose reel pumpsets
6.1 General
6.2 Electric-motor driven fire hose reel pumpsets
6.3 Compression-ignition driven fire hose reel pumpsets
6.4 Types
6.5 Operation
6.6 Electrical wiring
6.7 Valves
6.8 Unions
6.9 Maximum allowable working pressure
6.10 Marking
7 Residential sprinkler pumpsets
7.1 General
7.2 Pumpset type
7.3 Operation
7.4 Electrical
7.4.1 Wiring
7.4.2 Controller for electric-driven pumpset
7.5 Valves
7.6 Unions
7.7 Marking
8 Electric drivers and controllers
8.1 Electric drivers
8.1.1 General
8.1.2 Types of wiring
8.1.3 Basis of rating
8.2 Electric controllers
8.2.1 General
8.2.2 Location
8.2.3 Controller cabinets
8.2.4 Isolation and overcurrent protection
8.2.5 Motor starter
8.2.6 Variable speed control
8.2.7 Equipment segregation
8.2.7.1 Low and extra-low voltage components
8.2.7.2 Mixed voltage components
8.2.8 Control devices
8.2.9 Indicator lights
8.2.10 Remote alarm contacts
8.2.11 Aural alarms
8.2.12 Alarm power supply
8.2.13 Test facility
8.2.14 Ammeter
8.2.15 Conductor terminations
8.2.16 Monitor battery
8.2.17 Battery chargers
8.2.18 Wiring diagrams
8.2.19 Marking
8.2.20 Access for inspection and testing
8.2.21 Pre-delivery testing
9 Compression-ignition drivers and controllers
9.1 Driver type
9.2 Driver performance
9.2.1 Fuel
9.2.2 Engine power
9.2.3 Service life
9.2.4 Starting capability
9.3 Driver systems
9.3.1 Lubrication system
9.3.2 Cooling system
9.3.2.1 General
9.3.2.2 Liquid-cooling systems
9.3.2.3 Air-cooling systems
9.3.2.4 Supplementary cooling systems
9.3.3 Fuel system
9.3.3.1 Electronic fuel management system
9.3.3.2 ECM power supply
9.3.3.3 Fuel supply and return line arrangement
9.3.3.4 Fuel tank
9.3.3.5 Fuel tank location
9.3.3.6 Protection against fire and explosion
9.3.4 Air induction system
9.3.5 Exhaust system
9.3.6 Starting and stopping systems
9.3.6.1 General
9.3.6.2 Battery-powered starting systems
9.3.6.3 Start and control batteries
9.3.6.4 Engine alternator
9.3.6.5 Manual engine shutdown systems
9.3.6.6 Overspeed shutdown device
9.3.7 Instrumentation
9.3.8 Governor
9.3.9 Variable speed control
9.3.10 Guards
9.3.11 Marking
9.4 Compression-ignition driver controllers
9.4.1 General
9.4.2 Location
9.4.3 Controller cabinets
9.4.4 Isolating switch
9.4.5 Low and extra-low voltage equipment
9.4.6 Control functions
9.4.7 Indicator lights
9.4.8 Remote alarm contacts
9.4.9 Aural alarm
9.4.10 Alarm power supply
9.4.11 Conductor terminations
9.4.12 Wiring
9.4.13 Controller to driver interconnecting wiring
9.4.14 Battery chargers
9.4.15 Alternator isolation
9.4.16 Locked switches
9.4.17 Instructions
9.4.18 Access for inspection and testing
9.4.19 Pre-delivery testing
9.4.20 Wiring diagram
9.4.21 Marking
9.4.22 Test facility
9.5 Electrical connections on engine
9.6 Spare parts
10 Shop testing and conformance
10.1 General
10.2 Hydrostatic tests
10.2.1 Pump
10.2.2 Ancillary equipment
10.3 Performance tests
10.3.1 General
10.3.2 Pump
10.3.2.1 General
10.3.2.2 Head measurements
10.3.3 Electric driver sets
10.3.4 Compression-ignition driver sets
10.3.5 Controller
10.3.6 Mechanical checks
10.3.6.1 General
10.3.6.2 Electric-motor-driven pumpset
10.3.6.3 Compression-ignition pumpset
10.4 Conformance
11 Siting and installation
11.1 General
11.2 Temperature
11.3 Location
11.4 Lighting
11.5 Ventilation
11.6 Drainage
11.7 Plinths
11.8 Protection of the overall system against damage due to movement or pressure
11.9 Identification of pipework
12 Commissioning testing
12.1 General
12.2 Electric motor pumpsets
12.2.1 Purpose
12.2.2 Preparation
12.2.3 Testing record
12.2.4 Reporting of results
12.3 Compression-ignition engine driven pumpsets
12.3.1 Purpose
12.3.2 Preparation
12.3.3 Procedure
12.3.4 Reporting of results
12.4 Automatic pressure maintenance (jockey) pumpsets
12.4.1 Purpose
12.4.2 Procedure
12.4.3 Reporting of results
Appendix A
A1 General
A2 Pump maximum power
A3 Electric drivers
A4 Compression-ignition drivers
Appendix B
Appendix C
C1 Protection against exposure to fire
C2 Protection against mechanical damage
C3 Protection against hosing with water
Appendix D
D1 Scope
D2 General
D3 External pump house
D4 Internal pump room
D5 Lighting
D6 Ventilation
D7 Drainage
D8 Wall penetration pipework
Appendix E
Appendix F
Appendix G
Bibliography
Cited references in this standard
[Superseded]
Emergency escape lighting and exit signs for buildings, Part 1: System design, installation and operation
[Current]
Pipe threads where pressure-tight joints are made on the threads, Part 1: Dimensions, tolerances and designation
[Current]
Rotating electrical machines - Dimensions and output series - Part 1: Frame numbers 56 to 400 and flange numbers 55 to 1080
[Current]
Dimensions and output series for rotating electrical machines - Part 2: Frame numbers 355 to 1000 and flange numbers 1180 to 2360
[Current]
Dimensions and output series for rotating electrical machines - Part 3: Small built-in motors - Flange numbers BF10 to BF50
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