In this text, we have examined the following:

  1. What is the Difference Between a Wet and Dry Riser?
  2. What is the purpose of a riser in a building?
  3. Wet riser.
  4. Where is wet riser system used?
  5. When should a wet riser be installed?
  6. Dry riser.
  7. What is the purpose of a dry riser?
  8. What are the benefits of a dry riser?
  9. Where are dry risers required?

What is the Difference Between a Wet and Dry Riser?

Wet and dry risers are an important part of fire safety protection for all multi-story buildings.Wet and dry risers can be easily confused because they do very similar things. The design and function of the two are almost identical, but it is important to understand the difference between wet and dry risers. Both risers are designed so that firefighters have easy access to water when extinguishing fires in tall buildings. These two risers help contain and extinguish the fire.

 

What is the purpose of a riser in a building?

Riser is a universal term to identify any open conduit, shaft, tunnel, pipe, vent, etc. that rises up within a building in a complex mechanical assembly. Every high-rise building contains a riser shaft, an important artery sending and dispensing vital mechanical and electrical services across a structure.

WET RISERWet riser:

a system of valves and pipe work which is kept permanently charged with water, generally utilising pumps and tanks. A Wet riser is a supply system intended to distribute water to multiple levels or compartments of a building, as a component of its fire fighting systems. The wet riser system consists of a duty fire pump with a standby pump that discharges to a 150 mm diameter riser pipe with landing valves at each floor and a boom hose with nozzles can be connected to it to provide a jet of water. lead to the fire. A jockey pump is usually provided to maintain system pressure.

Wet riser

Wet risers can be placed inside or outside the building and have two outlets that connect to water pipes that firefighters can then access to fight the fire.

 

Where is wet riser system used?

A wet riser is required in a building 50 meters or higher and is an integral part of a fire safety plan. These systems ensure that the property and its occupants can be protected from any potential fires that may occur.

When should a wet riser be installed?

A wet riser is required in a building 50 meters or higher and is an integral part of a fire safety plan. These systems ensure that the property and its occupants can be protected from any potential fires that may occur. This will also validate your insurance policy.

DRY RISERDry riser:

A system of valves and pipe work which enables the fire service to pump water onto upper floors of a building.

Dry risers should be installed in buildings whose floors are between 11 and 50 meters above ground level. Dry riser testing and commissioning is essential to ensure good equipment performance. The fire department relies on dryers to fight fires. If they cannot access equipment quickly and easily, or if the equipment is faulty, it may hamper their efforts to fight the fire and further endanger lives.

Unlike wet risers, dry risers are not permanently filled with water. Instead, they use a system of interconnected pipes that can quickly provide water to firefighters on the upper floors of a building.

Dry risers provide easily accessible ports to which firefighters can hook their hoses while fighting a fire. Additionally, dry risers mean firefighters don’t have to worry about carrying extra equipment and resources into the building, helping them respond to emergencies faster.

The pipe work of dry riser distribution systems is usually of Galvanized steel pipe.

 

Dry riser

What is the purpose of a dry riser?

Finally, both wet and dry risers should be serviced and tested to ensure they are working at their best at least twice a year.

Arman Tahvieh Rasam