SBF 504:1: Pressurized Riser Systems Regulations

SBF 504:1: Regulations for Pressurized Riser Systems

• The SBF 504:1 rulebook provides instructions for wet, pressurized riser systems, including installation, inspection, testing, and maintenance
• The aim is to supply firefighters with safe access to extinguishing water in tall buildings with the intention of standardizes practices through installation specifications, testing methods, and practical experience
• This regulation does not seek to restrict innovative technology if safety standards remain

Key Definitions

• Attack Route: Entrance to the building's lowest entry level and/or addresses accessible to the fire department
• Closing Valve: A valve used to halt water flow in a pipe
• Inspection Company: A company certified as an inspection company according to SBF 1003
• Fire Brigade: The municipality's fire and rescue organization
• Inlet Fitting: A connection for the fire brigade to connect their equipment for filling/pressurizing the riser system
• Express Line: A type of supply line that only feeds upper zones in a riser system
• Extra Drainage Connection: A drainage connection installed to allow water drainage from a section of the riser system
• Manager: The person responsible for a riser system during a building's management phase
• Branch Line: A pipe system, usually horizontal, connected to a riser
• Main Drain: The primary drainage connection for emptying the entire riser system
• Main Valve: A valve regulating flow to the riser system
• Requirement Specifier: The organization requesting or requiring the riser system, such as the property owner or fire department

Key Definitions Continued

• Supply Line: A section delivering water to one or more risers
• Relations Document: Paperwork showing the actual implementation of a riser system
• Residual Pressure: Remaining pressure at a point in the system during flow
• Hose Connection: A fitting on the discharge fitting allowing firefighters to connect a hose
• Static Pressure: Pressure at a point in the system without any flow
• Riser: A pipe with a water inlet, pumps/inlet fitting for fire pump connections, and discharge fittings for hose connections on different floors
• Riser System: A setup of pipes, valves, hose connections in a building, designed to release water through a hose
• Riser Zone: Vertical section bounded by pressure limits on components
• Constantly Staffed Location: A manned location in/near a building that manages incoming alarm signals 24/7
• System Demand: The pressure and flow required to deliver total needed pressure/flow
• System Pressure: Expected pressure applied to the riser system's components
• Stair Landing: Space at the top step or between flights of stairs
• Pressure Regulating Device: A product that adjust water pressure, like a pressure reducing valve
• Pressurized Riser System: A system with water connected to a water supply, ready to deliver water.
• Discharge Fitting: A fixed valve on risers for opening/closing and hose connection
• Zone Line: A line supplying only one zone

Components

• All components in riser systems must endure expected pressure/temperature without damage
• Steel pipes should be used and sized for the riser system's pressure
• Steel pipes must meet SS-EN 10217-1 (P235 TR1), SS-EN 10255M (S 195T), ASTM A795/795A, or ASTM A135/A135M standards
• Galvanized steel not allowed
• Pipe connecting methods include welding, threading, or flanging
• Fittings must be pressure-rated and compatible with the piping
• Welding/joining must use qualified personnel and companies certified for quality assurance according to SS-EN ISO 3834, level 3 or higher
• Welding done with a welding procedure (WPS) following SS-EN ISO 15614

More Components

• Welders and operators should be certified per SS-EN ISO 9606 or SS-EN 287-1; Mechanized welding requires SS-EN ISO 14732 certification
• Shut-off valves must close clockwise, have clear open/closed indicators unless code 4.6.1 applies otherwise
• Secured position locks or be similar with monitoring per Appendix D

Outlets

• Angle valves should adhere to SMS 1458(DN 40, coupling 32) and SMS 1164 (DN 65, transition lock SMS 1181 to coupling 32) standards
• Hose connections have protection from contamination utilizing SMS 1175 32 locks easily removable with hand-force when pressurized
• Discharge fittings and hose connections should be in shafts or locked cabinets accessible using fire department keys per SS 3654 standards

Riser Placement

• Systems water-filled and automatic
• Construction contingent on height, floor area, staircases, system pressure which must be adhered to
• Approval of pressure regulators needed for install
• Express lines supplying higher pressure to riser areas needs to conform with it's material list

Pressure

• Maximum system pressure must not pass 20 bar except for some points
• Express lines supplying higher zones system are allowed past 20 bar with it's material list however, no discharge with system can pass 12 bar
• Residual pressure from discharge valves minimum of 8 bar and static shouldn't exceed 12 bar
• Regulators placed upstream for maintanace as wells as no higher than 2.3m from ground
• Regulators include pressure gauges inlet/outlet
• The pressure regulating devices needs to have an overpressure valve which fits the recommendation

Pressure Gauges

• Pressure gauges should be installed and clearly visible near discharge fittings for capacity of the riser test a control valve has to be available
• In attack routes for the firehouse gauge needs to measure current system pressure
• Gauges have to be upstream/downstream every pump, alarming valve, or reducing valve to stop the the riser functionality these gauges have to withstand vacuum and be liquid dampened
• Gauge measurements has to be 100mm diameter and cannot be lower than 0.5 bar and no higher to 25 and 1 bar to 40

Riser Placement and Connection

• Discharge placement should be planned free from outside disturbance and should be installed 1.1 higher and 0.5 lower and measured from the discharge valve there should be .9 meters of area

• Height 3 floors from entrance placed within the staircase that gives the personal a secure and safe fill

• Fittings must be present on the riser and additional may be placed on site that links to the staircase no replacement should occur that takes place within the staircase

• The highest placements must lead to the roof and shouldn't lead to more to 50 meters of travel between the valve and the building

• Risers has to be installed within every stair case that gives a point of attack

• Size of the connection should be considered and the pipe must not be smaller than DN 65

Flow

• Piping has to have it's dimensions checked for hydrolic reasons

Draining and Testing Standards

• Draining requires a permanent installation that has multiple pressure zones with regulators which require two
• Testing can be done from via a roof brand or through a similar opening
• Testing lines should be the same as the outlet

Water Flow Alarm Setting

• Each riser should have install point to give the personal opportunity to connect any potential hoses
• A connection has to be set down every valve to copy the possibility of using the connected hose

Installation of Above Ground Pipelines

• Secure the riser mechanically and do not allow it to receive electrical
• Any electrical source has to be set inside the box

Electrical

Electrical Connection Guideline

• No frostable materials are allowed to set on the connection and it has to hold 4c to 40c to handle the heat and cannot drop
• If cables are in the way this guidelines helps prevent The wire should be supervised and can not be easily broken set wire needs insulation. Twin wires should be present with the ability to do 4c and 1 cable needs wattage and if this doesn't workout the system should dump

Valve Guidelines

• A head valve is needed to shutdown the valve completely
• Piping used for connecting common electrical grids has to have proper security that deals with the supply issues

Sign Standards

• Set signs should be made of sturdy material which goes with 2008 13 chart rectangle with white letters

Intake setting should make personal take easy

• All connected has to make way for the water and if that doesn't occur those locations would set to be filled again
• To be as safe as possible they take every part as a new location
• If connections are near every side has to be clear that takes care of the current situations
• Intakes has to a valve which gives the personal the permission to enter the building
• A good measure would be around 900mm and around 1500mm with a good marking

Information on water systems key notes

• When valves reach a location the valves must be set perfectly
• High and low gauges to have good range as it has to be correct
• Lines to contain has every thing from the heat

Water Supply

• A licensed area from will help with all the proper installations
• A meter which has a minimum level helps with with taking care with every thing
• A pump has to has a proper impulse within the water supply it is self

Water Flow

• Must has water for at least 4 hours
• Pumps start instantly the gauge has to start the first time it's open but has to come within reach
• Pressure pumps has to have certain pressure and every pump is capable of working with the others
• Electrical is always needed and motors to have specific documents

Other Points On Water Flow

• Set amount to be put on wires so every one has the same flow
• Cords can be pulled to start it with E 60
• Switches needs to be locked at all cost.

Maintenance:

• Lines have to be in ready state
• Check pumps and cords the system will look out the gauge chart

Guidelines:

• When something is over heated every gauge or thing will be fixed
• Intakes needs certain power from a professional has proper things or a different look for the system.

Drawings:

• When drawings has to be checked to confirm that they align is there a specific look that matches the charts and should be compared to find out

Drawings Should Incluse:

• The water set and the different parts of the set

Drawings:

• There has to be at specific spot that matches the standards

• Every detail to make sure that the system works

• Gauge set matches charts

Chart and Set:

• There needs to be certain accuracy
• There needs to be an all around view of the connections
• Specific chart view is as important Every thing should be compared.