Fire Fighting Equipment, Pre-Action Device

• Name: Pre-Action Device
• Rated Working Pressure: 1.6MPa
• Transport Package: Wooden Case or Carton
• Origin: China
• Model NO.: ZSFY
• HS Code: 842410
• Production Capacity: 10000

Product Description

Products:

Pre-action device is a fixed fire prevention system which can realize early fire alarm and automatic fire extinguishing. The fire detection part can send out fire alarm in time. Then the rain valve is opened and the pressure water fills the pipe network rapidly. When the temperature continues to rise, the sprinkler starts to spray water. The system overcomes the shortcomings of both wet system and dry system, takes the best of both systems. It has the characteristics of early alarm, fast spraying, full function and wide application range.
The fire alarm will be given before the sprinkler operates, therefore the fire extinguishing system can be used in places where water is not allowed easily, such as precious goods storage, rare books collection libraries, archives, computer rooms and so on. Many fire hazards were handled by duty personnel before sprinklers were used to extinguish fire, thus avoiding large-scale waterlogging.

Working Principle Diagram of Pre-acting System:

 

 

Specifications and Technical Parameters:

Model	Rated Working Pressure (Mpa)	Nominal Diameter D(mm)	Outer flange diameter D (mm)	Flange Height L (mm)	Center distance of bolt hole D(mm)	Bolt
						Number	Thread
ZSFY 100-1.6	1.6	100	220	620	180	8	M16
ZSFY 125-1.6		125	250	725	210	8	M16
ZSFY 150-1.6		150	285	725	240	8	M18
ZSFY 200-1.6		200	340	990	295	12	M20
ZSFY 250-1.6		250	405	1050	355	12	M24

 

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