Wet riser systems are a building regulations requirement in occupied buildings over 60 metres tall and form part of a buildings fire suppression system.
The wet riser systems are permanently charged with water from a header tank above the wet riser system and will be automatically discharged in an event of an outbreak of fire.
The main difference between wet and dry risers is that dry risers systems can only be installed up to 60 metres and are not pressurised with water like wet risers.
Wet riser systems are the pipework system that will carry water to the sprinkler heads in case of a fire. Sprinkler systems are the most reliable and simple as the only operating components being the automatic sprinklers and the automatic alarm check valve. An automatic water supply provides water under pressure to the system piping. All of the piping is filled with water. Until sufficient heat is applied, causing one or more sprinklers to fuse, the automatic sprinklers prevent the water from being discharged.
Wet Riser Systems Service & Maintenance
Like Dry Risers, Wet Risers are also prone to neglect and vandalism. If your fire risk assessment concludes that you would need the intervention of the Fire Service to fight a fire, you must ensure that your riser systems or hydrants are working properly. There are severe penalties should the rising main fail to work for the Fire Service. Leaking water from a wet riser could also cause considerable damage to your property.
We do not currently offer testing, servicing or maintenance for wet riser systems.
Contact the National Dry Riser Testing Company today for FREE advice on the new British Safety Standard BS 9990:2015 or any questions relating to dry riser testing, servicing or spares.