What are the differences between dry pipe and wet pipe sprinkler systems?
In a wet system, the pipes are filled with pressurized water. Conversely, dry systems are filled with pressurized nitrogen or air that keeps water at a riser. When a dry sprinkler system goes off, the pressure in the pipes drops, a valve opens, and water flows through the pipes and out to extinguish the fire.
What are the components of a dry pipe sprinkler system?
Basic Components of a Dry Valve
- The valve is in the closed position (clapper inside the valve is horizontal) and air pressure keeps the clapper closed.
- A sprinkler activates, releasing air pressure at the sprinkler.
- Air pressure within the dry pipe system begins to reduce.
What is wet pipe sprinkler system?
Wet pipe systems are the most common fire sprinkler system. A wet pipe system is one in which water is constantly maintained within the sprinkler piping. When a sprinkler activates this water is immediately discharged onto the fire.
What are different types of sprinkler?
Let’s discuss four types of sprinkler systems and their best uses.
- Wet Pipe Commercial Sprinkler System. Wet Pipe Systems include overhead piping filled with water under pressure.
- Dry Pipe Commercial Sprinkler System.
- Pre-Action Commercial Sprinkler System.
- Foam Water Commercial Sprinkler System.
What are the best sprinklers?
The Best Sprinkler
- Our pick. Melnor XT4200M. The best sprinkler.
- Runner-up. Melnor XT4200. Lighter construction, just as good performance.
- Also great. Gardena Oscillating Sprinkler ZoomMaxx. The best coverage and customization.
What is the difference between upright and pendent sprinklers?
Upright sprinklers are installed with deflectors above the sprinkler, while pendent sprinklers have deflectors below the sprinklers. Common industry practice is to use upright sprinklers in areas without finished ceilings and pendent sprinklers in areas with finished ceilings.
What is the purpose of upright sprinkler?
Upright sprinklers are used mostly in places where obstructions may block water spray during a fire, and their height allows them to aim water around possible obstacles.
What liquid is in fire sprinklers?
glycerin