Wet riser vs dry riser

Simple but effective, sprinklers have been used for around years. According to statistics, wet riser vs dry riser, no person has lost their life to fire in the UK where Sprinklers have been installed. We also have specialist equipment to cut and re-thread sections of large diameter pipe or to fit collars to pin-hole leaks. You can contact us regarding any concerns you may have about the installation or maintenance of your Sprinkler system, or to request a site survey in order to provide you with a quotation.

Although wet and dry riser systems are a common spot, especially on commercial and industrial premises across Singapore, not many people really understand what they are and how they work. Wet and dry riser systems are made up of a network of valves and pipes that enable fire fighters to pump large volumes of water to the top of high rise buildings or areas that are hard to access with other common systems during fire emergencies. Due to the high pressure required to pump water onto tall buildings, wet riser systems are equipped with duplicate automatic pumps and well as tanks for storing water. The water for the tanks comes from the city mains but, you could also have an alternative water source. Dry riser systems remain empty but, have water inlets at the ground level for supplying water during a fire threat. Besides, they also have landing valves at designated floors or sections of the building for pushing the water to the top floor.

Wet riser vs dry riser

A dry riser is an empty pipe that can be externally connected to a pressurized water source by firefighters. It is a vertical pipe intended to distribute water to multiple levels of a building or structure. It has outlets on each level of the building for firefighters to connect their hose to. This can be a wet or dry riser. Dry risers have to allow access to a fire engine within 18 m of the dry riser inlet box. Their valves are checked for damaged seals and various other important checks are carried out including the air release valve at the top of the riser. Laying a firehose up a stairwell takes time, and this time is saved by having fixed hose outlets already in place. There is also a tendency for heavy wet hoses to slide downward when placed on an incline such as the incline seen in a stairwell , whereas dry risers do not move. The use of dry risers keeps stairwells clear and is safer for exiting occupants. Dry risers go in a direct up and down direction rather than looping around the stairwell, greatly reducing the length and thus the loss of water pressure due to friction loss.

Signage for wet and dry risers According to the Regulatory Reform Fire Safety Orderall non-automatic fire fighting equipment must be readily accessible and clearly signed, wet riser vs dry riser. Dry risers have to allow access to a fire engine within 18 m of the dry riser inlet box. Similarly, buildings that are over 18m tall should also have wet riser systems.

Our systems consists of a network of pipes that allow water to be delivered to the upper floors of a building in the event of fire. It comprises of an inlet at ground level that can be accessed by the fire brigade to pump water up into the building to outlets situated on the landings of each floor. This allows a firefighter to attach their hose to any one of these outlets and source pressurised water to set about extinguishing the fire. Our wet riser systems are similar in design to dry risers and can usually be found in buildings over 50m tall. Unlike the dry riser system, it is kept constantly charged with water, in order that it can provide the same level of protection against a fire in the upper reaches of taller properties as on the lower floors. The wet riser system is charged with water from a pressurised supply, which is often pumped from a storage tank. Fire hydrants are located on large sites such as hospitals, military sites, and industrial estates.

A dry riser is, in fact, simply a set of permanently installed pipework water inlets, pipes, and outlets spread through a building on all levels and which firefighters can access to help them fight a fire on an upper floor of a building. An air valve is fitted at the top of the pipework so that air can be released when the system is full of water. Fire-resisting enclosures surround the pipework. It is called a dry riser because it should always remain empty and only be filled with water during an actual fire or when being tested. Having a fixed water distribution system, such as a dry riser, allows firefighters to get much bigger quantities of water to the upper reaches of a building in a short space of time. This is obviously a huge help in an emergency fire situation and prevents firefighters from having to lug long and heavy hoses up the stairs and through the various landings of a building. Firefighters access the dry riser via the fire hose water inlet valve on the ground. They can then pump water up the dry galvanised steel piping to landing valves outlets at particular locations around the building. Each floor will have its own dry riser cabinet. You will also find dry risers in the basements of large buildings or even in underground car parks.

Wet riser vs dry riser

Comprehensive fire protection is about much more than just sprinkler systems. But what are they? How can they improve safety? And, perhaps most importantly, is it a legal requirement to have one of these systems installed in the properties you manage? Both systems are designed to provide a rapid source of water to upper floors should the need arise. Both systems must also — by law — be tested every 12 months. This is often the responsibility of the property owner or managing agent. At Eversafe, we offer a maintenance service that can handle all that for you. Despite all these similarities, there are some significant differences between the two systems. Dry risers are a legal requirement in buildings more than 18m tall.

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Click Here To View. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. You can check these in your browser security settings. Red Box Fire Control is proud to celebrate over 35 years in the fire safety industry. Wet riser systems are mainly installed on tall buildings to permanently hold water from a main supply network, which in most cases is from the municipal. The fact that wet systems permanently hold water makes them quite reliable during fire emergencies, ensuring prompt response. Analytics Analytics. At Eversafe, we offer a maintenance service that can handle all that for you. Without knowing how to choose the right wet and dry systems for your property, you could end up with a sub-standard product. Powered by. Changes will take effect once you reload the page. This is a fairly recent requirement, with pre legislation requiring wet risers only for buildings of 60m or more.

A standpipe or riser is a type of rigid water piping which is built into multi-story buildings in a vertical position, or into bridges in a horizontal position, to which fire hoses can be connected, allowing manual application of water to the fire. Within the context of a building or bridge, a standpipe serves the same purpose as a fire hydrant.

The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. Order Wet and Dry Systems Singapore Regardless of the size of the property or potential fire threats, we can deliver just the right wet and dry riser systems for optimum fire protection and safety. This means all inlets for dry and wet risers must include fire riser signs to inform occupants and fire rescue services of their location in the event of a fire. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. Other cookies. Here, we discuss the differences and benefits of each. The cookie is used to store the user consent for the cookies in the category "Performance". Share your basket. Check to enable permanent hiding of message bar and refuse all cookies if you do not opt in. In case of a fire threat, fire fighters connect hoses to the external inlets on the system with outlets positioned at strategic levels of the buildings to distribute the water. Google Analytics Cookies.