What the Dry fire sprinkler system pipes

Dry fire sprinkler system pipes

Dry pipe sprinkler system, which is filled with pipes with compressed air or nitrogen instead of water. This air carries the remote valve, known as a dry pipe valve, in the closed position. Located in the hot, dry pipe valve area, and prevents water from entering the tube even cause a fire one or more of the sprinklers to work. When this happens, the air escapes and releases the dry pipe valve. The water then enters the tube, flowing through the machine guns open fire.

The advantages of using dry pipe fire sprinkler systems include:

Spray dry automatic protection piping systems in places where freezing availability possible. Typical installations include dry pipe and the upper rooms of unheated warehouses, loading docks exposed outside and inside commercial freezers.
Many people look dry pipe sprinklers is useful to protect groups and other sensitive water areas. This benefit is seen due to the fear that wet pipe system physically damaged will leak while the dry pipe systems do not. In these cases, however, the dry pipe systems generally will not provide any advantage over wet pipe systems. Must affect damage occurs, there will be only a mild discharge delay, any 1 minute, while the release of the air in the pipes before the water flow.

The disadvantages of the use of fire sprinkler systems dry pipe include:

Increasing complexity - dry pipe systems require additional control equipment and components supply air pressure which increases the complexity of the system. Without proper maintenance of this equipment may be less reliable than comparable wet pipe system.
Installation and maintenance costs rise - effects added complexity and cost of the overall dry pipe installation. This complexity also increases maintenance expenses, mainly due to labor costs added services.
The flexibility of the design world - and there are strict requirements with respect to the maximum allowable size (usually 750 gallons) of individual dry pipe systems. These restrictions may affect the ability of the owner to make additions system.
Increase fire response - up to 60 seconds may pass from the time of spraying open until the disposal of water on the fire. This delay needed to fire procedures, which may cause an increase in content damage.
Increase the likelihood of erosion - and after the operation, the dry sprinkler pipes must be drained and completely dried systems. Otherwise the remaining water may cause erosion of the pipe and the failure of a previous premature. This is not a problem with wet pipe systems where the water is maintained constantly in the pipe.
With the exception of building spaces and unheated rooms freezing, dry pipe systems do not provide any significant advantages over wet pipe systems.