亚洲人和日本人jzz视频

Sprinkler System

亚洲人和日本人jzz视频A Sprinkler System consists of a main delivery pump, diesel engine driven pump (if considered), a jockey pump, electric control panels, sprinkler heads and associated piping. The system is kept under continuous pressure through automatic intermittent operation of jockey pump.

The area to be protected is adequately covered with quartzoid bulbs and sprinkler nozzles. These may be ceiling or wall mounted. All sprinkler components are standard except for the glass bulbs which are graded according to operating temperature. When the air in the vicinity of the sprinkler reaches the operating temperature of the quartzoid bulb, liquid sealed in the glass bulb expands and breaks the bulb into small fragments. The seat is thrown clear of the sprinkler yoke and the water under pressure passes unobstructed through the yoke orifice. The stream of water impinges on the deflector plate and an evenly distributed water spray pattern is formed. This sequence of events is instantaneous.

The resulting pressure drop in the line actuates the pump automatically. Simultaneously, a hooter provided with an electric control panel starts emitting an alarm sound which alerts the personnel in the premises.

Sprinklers are available in following spray pattern types:

  • Upright Sprinkler
  • Pendant Sprinkler
  • Concealed Sprinkler
  • Side wall Sprinkler

We also use extended coverage sprinklers, ESFR sprinklers etc. for special risk application.

Pre-action Sprinkler System

Pre-action sprinkler systems are specially designed for use in locations where accidental activation is undesired, such as, in museums with rare art works, manuscripts, or books and Data Centres for protection of computer equipment from accidental water discharge.

亚洲人和日本人jzz视频Pre-action systems are hybrids of wet, dry and deluge systems, depending on the exact system goal. There are two main sub-types of pre-action systems: single interlock and double interlock.