As well as dry riser testing and maintenance the National Dry Riser Testing Company also offers dry riser installation by professional fire engineers.
The National Dry Riser Testing Company dry riser installation are done by site engineers who are experienced in fire protection and meeting the approvals of the fire services. After a successful dry riser installation our service engineers will test the dry riser to the British Standard BS990:2015.
Contact us today for FREE advice on dry riser installations or any questions relating to dry riser testing, servicing or spares.
Dry risers are a building regulations requirement in occupied buildings over 18M tall but can also be found in car parks, multilevel basements or hospital corridors where the fire service access could be limited.
A dry riser system is used by the fire services to distribute water to multiple levels of a building in an emergency. Dry risers are vertical mains fitted into staircase enclosures or other suitable positions, a static pipe with outlet valves on each floor and inlets fitted at ground level to enable the fire and rescue service to connect to the water supply and deliver water to all floors. The current standard for the installation of Dry Riser Systems is BS9990: 2015.
The dry riser external inlets need to be easy accessible by the fire service in an emergency. The dry riser system is left dry and only charged with water when tested or in an emergency. The dry riser outlet points are positioned on the upper storeys allowing firefighters easy access to water in the event of a fire.
British Standard BS9990:2015 states that dry riser systems should be serviced once every six months with a dry riser annual test including a hydraulic pressure test using a fire service approved hose and pump for a minimum of 15 minutes once every 12 months.
Occupied buildings over 50 metres tall require a wet riser systems. For more information on the difference between a dry riser system and a wet riser system see our knowledge articles.