Wet riser vs dry riser

Simple but effective, sprinklers have been used for wet riser vs dry riser years. According to statistics, 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.

But what about a Wet Riser? This is a term that you may be less familiar with. A wet riser system is required by building regulations in occupied buildings over 50m tall. Although, they can also be installed in buildings below this height. Due to the water pressures required, these systems include matching automatic pumps and water storage tanks which are fed by the town mains.

Wet riser vs dry riser

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. We can assist you with the design, installation, testing and maintenance of the fire hydrants. We have an excellent reputation for installing and servicing to ensure your dry and wet riser systems remain safe and compliant at all times from high rise social blocks to hospitals. Dry risers are a requirement of building regulations in occupied buildings over 18m tall. They can also be found in environments with limited access or with compartmentation issues such as multi-level basements or hospital corridors. Additional Message. Please tick this box if you are happy for us to contact you via phone and email.

Dry and wet riser wet riser vs dry riser are very similar, featuring a red background with white lettering and flames. By clicking "Accept All Cookies", you agree to the storing of cookies on your device to enhance site navigation, analyse site usage, assist in our marketing efforts, and for personalised advertising. The cookies is used to store the user consent for the cookies in the category "Necessary".

Many commercial, industrial and non-residential properties rely on wet and dry risers as a key part of their fire safety procedures. Wet and dry risers are a key part of fire safety protection for all multi-storey buildings. Both risers are designed to provide firefighters with easy access to water when tackling fires in tall buildings, helping them to extinguish them and prevent the blaze from spreading. At KW Fire Protection , we offer a whole host of building fire safety services, including the installation and maintenance of wet and dry risers. Designed for buildings that stand taller than 50m in height, wet risers have a constant supply of water in a place that can be accessed by emergency services during a fire.

In part one of this series, we explained how the essential components of a fire riser are used to streamline repairs and verify the fitness of a fire sprinkler system. In this article, we explain how these other common components come together to form specific types of fire sprinkler riser assemblies for wet-pipe systems. You can also check out our extensive line-up of pre-assembled commercial and residential riser manifolds , pressure gauges , test, drain, and trim valves , and flow and pressure switches. Check valves are a common but not universal feature of fire sprinkler risers. They prevent the contents of a sprinkler system—from the riser and connected piping—from flowing out of sprinkler pipes and into the municipal water supply, water tanks, or another source. In wet-pipe systems, they also prevent a loss of pressure downstream. One check valve will almost always be found at the fire sprinkler riser: an alarm valve, or alarm check valve. In wet-pipe systems, an alarm check valve has a port that fills with water when a fire sprinkler head activates.

Wet riser vs dry riser

Wet pipe systems are filled with pressurized stagnant water. In a steel or iron pipe filled with truly stagnant water, the concentration of dissolved oxygen in the water is quickly consumed by the cathodic corrosion reactions and biological oxygen demand if any. Within a few weeks of system fill, the concentration of dissolved oxygen is effectively zero. Because the reduction of dissolved oxygen is the controlling cathodic reaction in waters with a near neutral or basic pH, once the dissolved oxygen concentration drops to low levels, the corrosion reactions effectively stop. Theoretically, a six-inch steel pipe stub that was 1 filled with potable water, with no air gaps, and 2 capped on both ends with an air tight seal, and 3 buried in the Gobi Desert, with no external corrosion possible, could be dug up in 1, years and have little or no wall loss, and would remain filled with smelly water. Installation and operation of sprinkler pipes is more complex than our theoretical scenario. Periodic system flow in accordance with NFPA 25 requirements leads to the re-introduction of oxygenated water that re-starts the corrosion processes, until the dissolved oxygen is consumed. Typically, the infrequency of these water flow events does not significantly affect system longevity. Rather, the more common problem is attributable to original system installation. Air pockets are commonly created during system construction.

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At KW Fire Protection , we offer so much more than just wet and dry riser maintenance and testing to customers throughout Oldham, Manchester, Bolton and the surrounding areas. This is often the responsibility of the property owner or managing agent. Wet and dry risers are a key part of fire safety protection for all multi-storey buildings. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Download our Fire Risk Assessment Guide. According to statistics, no person has lost their life to fire in the UK where Sprinklers have been installed. A wet riser system is required by building regulations in occupied buildings over 50m tall. UK Safety Store. Dry risers are necessary for buildings taller than 18m, and provide easily accessible ports to which the fire brigade can hook their hoses while extinguishing a fire. Powered by. Accept settings Hide notification only. You can read about our cookies and privacy settings in detail on our Privacy Policy Page.

Many commercial, industrial and non-residential properties rely on wet and dry risers as a key part of their fire safety procedures. Wet and dry risers are a key part of fire safety protection for all multi-storey buildings.

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. Dry risers Dry risers are a legal requirement in buildings more than 18m tall. 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. Add to this our commitment to integrity, and when it comes to fire safety you can expect peace of mind unmatched by other suppliers. We also use third-party cookies that help us analyze and understand how you use this website. If you do not want that we track your visit to our site you can disable tracking in your browser here:. Others others. This is a fairly recent requirement, with pre legislation requiring wet risers only for buildings of 60m or more. It does not store any personal data. Click Here To View. The cookie is used to store the user consent for the cookies in the category "Performance". To find out more about maintaining safety in taller buildings, get in touch with us here at Eversafe by dropping an email to info eversafefire. To find out more about what we do, get in touch with our team today, or call us on Contact Us.