Connecting a water supply with hose connections, standpipes are an extension of the fire hydrant system. The fire department or building occupants are provide a prepiped water. Standing water is suppling to hose lines by standpipes strategically locate in a building or structure.
Several older buildings have only a 6.0 Stand Pipe Kit, while newer buildings have a combination system, which supplies both fire sprinklers and standpipes. These are generally found in buildings with large floor areas, especially in multi-story buildings as they prevent hoses from tangling in stairwells and on the ground.
Standpipe systems are fire safety systems that provide quick access to water in case of a fire. Standpipes install in standalone systems that act as fire hydrants for buildings, and provide fire protection to firefighters. Standpipe systems can also be bundle with sprinkler systems. These systems provide manual or automatic sprinklers as well as connection points for firehoses.
Most commonly, these systems are install in tall buildings that are large or highly specialized. In such cases, a fire could cause serious damage. These systems can also be install in different types of buildings. A dry standpipe system is made up of a number of pipes that bring water to different points within a building. It is used by firefighters to pump the water in, but the pipes remain dry and empty when there is no need. They are also “charged,” which means that they are always stock with water.
There are Several Types of Standpipe Systems
Standpipe Systems Come in Three Types
As part of a Class I standpipe system, a 2 1/2-inch hose connection should be provided for use by trained personnel or by the fire department during the initial response. The hose is not attached to it. Firefighters usually carry their hose packs to a floor, usually a stairwell, where they begin their operations and connect to standpipes. Firefighters use special thread for their hose connections.
Class II standpipe systems must have 1 1/2 inch hose stations to supply water to trained personnel or the fire department during the initial response phase. This is usually done with 100 feet of hose in cabinets.
The Class III standpipe system shall provide 1 1/2 inch hose stations for trained personnel and 2 1/2 inch hose connections to supply a larger volume of water for fire departments and firefighters trained in heavy fire streams. An example of this would be a 2-1/2 inch reducer to a 1-1/2 inch hose connection.
Compliant with NFPA 25
Maintaining standpipe systems in accordance with NFPA 25 is a requirement. In accordance with the standard, the control valves must be inspected weekly/monthly. Quarterly inspections of pressure regulating devices, piping, and hose connections are mandatory. A hose, cabinet, and hose storage device must be inspected annually. An annual test should be performed on the alarm device, the hose nozzle, and the hose storage device. Every 3 to 5 years, the hoses should be inspected.
A pressure control valve and a pressure reducing valve should be tested every five years. Every five years, the standpipe system must undergo a hydrostatic test, a flow test, and a main drain test. drostatic test is conducted at 200 psi for 2 hours, or 50 psi above the The maximum working pressure for hydrostatic testing is 200 psi for 2 hours, or 50 psi above the maximum working pressure.
Do you Need To Inspect Your Standpipe System?
Licensed and insured, W & M Fire Protection serves New York City and the tri-state area. NFPA codes and standards are met or exceeded in our inspections, service, and maintenance. For questions about your standpipe or fire sprinkler system, please do not hesitate to contact us.
A standpipe system is designed to maintain pressure during a fire. It is often difficult for firefighters to obtain pressure on high floors. This makes it more difficult to pump water fast enough to extinguish the fire. Standpipes might not be able to supply water to all floors depending on how the system is designed. To give people enough time to evacuate, some buildings are concentrated on the lower floors. This increases the risk that upper floors could catch fire. Stairwells and corridors are common access points to the standpipe system.
How System Supplies Water to The Sprinkler System?
The system supplies water to the sprinkler system as well as the standpipes. Other systems can be run separately to provide redundant coverage. This allows for the possibility that one system may fail, but the other could still work, which can prove beneficial for certain types of buildings. The system supplies water to the sprinkler system as well as the standpipes. Other systems can be run separately to provide redundant coverage.
A standpipe system can reduce your liability in case of an emergency. Insurance companies will often offer discounts to buildings that have fire protection measures, such as a standpipe system. The more systems they have, then the lower their insurance costs. Insurance companies will often reward people for having redundant fire protection systems.