A Dry Riser is essentially a specialised pipe system that enables firefighters to quickly and efficiently pump water from ground level to high levels in large buildings or blocks of flats.
How do Dry Risers work?
Firefighters connect the fire engine hose to the ground floor Dry Riser inlet, and can then pump pressurised water directly to the outlet valves on the floor nearest to the fire. This means firefighters can get to fires faster, using shorter, lighter hoses and importantly saving lives.
Here you can watch a video of a Dry Riser in action.
To ensure its effectiveness and legal compliance, dry risers need to be designed, installed and tested to meet British Standards. Our Dry Riser systems are commissioned to BS9990-15 and fully certified for building control.
When are Dry Risers used?
Dry risers need to be installed in buildings where the floor is between 18 & 60 meters above ground level. They are also required where there are floors more than 10 metres below ground. If you are unsure if a Dry Riser is necessary for your project, speak to your Building Control Officer.
Once you’ve sent your site drawings to us, our Design team will action a Dry Riser design to fully comply with BS9990-15, including the ground floor inlet and landing valves at each floor where personnel can connect and fill hose-lines in relative safety before entering the fire compartment.
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Once on-site, our engineers will construct the Dry Riser in location using heavy quality steel to meet the pressure, robustness and durability requirements of the system, including galvanizing where necessary.
On completion of the installation, the whole system will be put through a Static Pressure test to 12 bars of pressure and inspected for leaks. If leaks are identified, appropriate action will be taken and the system then retested. Once passed, the system is fully drained and left ready for use.
Once the Dry Riser installation is complete and tested we will issue a certificate of compliance in accordance with BS9990: 15 and the necessary Building Regulations.
If there is ever a fire, the person responsible for the building i.e. the property owner, landlord or facilities manager, will need to show that the dry riser system has been tested and that there is a valid certificate of compliance in place.