How do you make a water spray system?
- Establish design area (area to be sprayed)
- Determine dimensions.
- Determine water density (application rate)
- Calculate water demand.
- Establish nozzles required (K-factor & Spray Angle)
- Determine Nozzle Orientation.
- Determine number and type of nozzles required to give adequate water coverage.
How does a water spray system work?
Such systems are activated manually or automatically through mechanical, hydraulic, pneumatic or electrical triggering, and act as a group to extinguish fires where they start but also where they can spread. That said, once activated, water spray systems affect the entire area they are installed into.
What are the parts of a water spray system?
The water spray system is basically most useful for various tanks storing hazardous liquids or chemicals. The system consist of water reservoir, a pump of suitable capacity and pressure, delivery main, and distributing pipe array, main control valve(known as deluge valve), water spray nozzle and heat sensing element.
What is a water spray fixed system?
Water Spray System is a fixed pipe system that is connected with a water source and spray nozzle. The system is associated with the automatic detection system or fire alarm to get activated in case of fire. Upon activation, it supplies water at a high pressure to control the fire.
What is the difference between sprinkler system and water spray system?
Water mist systems may have single or multiple orifices, while sprinklers only have one. Fire sprinklers discharge only water or water with additives. Water mist sprinklers may discharge additives, air, and various gas agents. Sprinkler systems suppress fires primarily by wetting the fuel surface.
Where are water mist systems used?
Common Applications Typical applications, we see them going into some data centers out there, museums and theaters. Some historic homes have chosen water mist systems to have less water damage, and then large office buildings, so buildings companies are building that are high technology users.
What is deluge valve system?
A deluge fire protection system has unpressurized dry piping and open sprinkler heads. The system is directly connected to a water supply and when the system is activated, a deluge valve will release the water to all the open sprinkler heads. The valve is opened when activated by a heat or smoke detection system.
Are mist sprinklers good?
Misting systems have been in use for decades. They are a terrific way to conserve water through the distribution of a fine mist, which has a wider radius than traditional sprinklers or nozzle hose systems. High temperatures and low humidity will optimize the cooling effects generated by water mist systems.
What is high pressure water mist system?
The SEM-SAFEĀ® high-pressure water mist system is a unique fire fighting system. By forcing water at a high-pressure through nozzles, an extremely fine mist is created. Water is supplied via a pump unit. The SEM-SAFEĀ® high-pressure pump unit can supply all water mist applications.
What is spray angle?
The spray angle is the opening angle which the nozzle jet of droplets forms at the moment when it leaves the nozzle orifice, and it is one of the fundamental parameters for the choice of a given nozzle.
How does high velocity water spray system for transformer protection work?
The high velocity water spray system for transformer protection operates on the same principle as a deluge system. The detectors mounted on a separate pipeline on detecting the fire releases the compressed air within the pipe, thereby operating the deluge valve.
What is a water spray system?
Water Spray System: Water Spray System is a special fixed pipe system connected to a reliable source of pressurised water supply and equipped with water spray nozzles for application on area / equipment to be protected. The system can be operated automatically by connection to an automatic detection and alarm system or manually, or both.
What is fixed water spray?
Fixed water spray systems for fire protection (NFPA 15) Water spray is defined as water in a specific form having a specific pattern, particle size, density and velocity which is discharged from specially designed nozzles or equivalent devices.
What is the typical water supply duration of a transformer?
Typical water supply durations range from 1 hour (for example at transformers and conveyor belts) to several hours (for example at large chemical or petrochemical facilities). In accordance with NFPA 15, all components shall be rated for a maximum working pressure of not less than 12.1 bar (175 psi).