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E-mail
zhjchfm609@163.com
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Phone
13484338206
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Address
Donggong Industrial Park, Ruanshi Town, Zhuji City, Zhejiang Province
Product Categories
Kuaida Fire Protection Technology Co., Ltd
Pre action valve
NegotiableUpdate on 10/04
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Overview
1、 The pre action system is an automatic sprinkler fire extinguishing device developed in recent years. It combines fire automatic detection and alarm technology with automatic sprinkler fire extinguishing systems to provide dual protection for protected objects. It is particularly suitable for important places such as computer rooms, data rooms, historical archives, and elevated warehouses that are cold, frozen, and usually avoid water stains and do not allow accidental spraying
Product Details
1、 Explanation
The pre action system is an automatic sprinkler fire extinguishing device developed in recent years. It combines fire automatic detection and alarm technology with the automatic sprinkler fire extinguishing system, providing dual protection for the protected object. It is particularly suitable for cold and freezing conditions, as well as avoiding water stains during normal times
Important locations where accidental spraying may occur, such as computer rooms, data rooms, historical archives, elevated warehouses, etc. When there is no fire, the pipeline on the side of the system is filled with compressed air, so the system has the characteristics of a dry system and can meet high and cold temperatures
The need for automatic sprinkler fire extinguishing under certain conditions.
The ZSFY pre action device is an automatic sprinkler fire extinguishing device composed of a rain shower valve, one-way valve, inlet signal butterfly valve, inlet flange, manual emergency valve, solenoid valve, drip valve, water supply pressure gauge, control chamber pressure gauge, control chamber inlet valve, control chamber inlet filter, control chamber inlet check valve, control chamber inlet orifice plate, control chamber inlet hose, alarm pipeline filter, alarm control ball valve, alarm test ball valve, alarm pipeline drain hole plug, pressure switch, hydraulic alarm bell, drainage ball valve, etc. Secondly, a complete set of pre action devices will be assembled with components such as air maintenance equipment pipelines, electric contact pressure gauges, low-pressure pressure switches, electric control boxes, and air compressors. Product standard: Q/RCC103-2004 Automatic Sprinkler Fire Extinguishing System: Pre action Device.
2、 Working principle
3、 Main technical parameters
| Specification Model | nominal diameter | rated pressure | Interface method | connecting bolt | Installation method | D | D1 | H | L | B | ||
| ZSFY100-1.2 | DN100 | 1.2MPa | flange | 8-M16 | Vertical installation | 218 | 180 | 605 | 550 | 510 | ||
| ZSFY150-1.2 | DN150 | 8-M20 | 280 | 240 | 718 | 630 | 625 | |||||
| ZSFY200-1.2 | DN200 | 12-M20 | 340 | 295 | 865 | 690 | 700 | |||||
1. The system should be installed according to the specifications. A space of about 0.5mm should be reserved around the pre action device for installation and maintenance;
2. Before installation, the water supply inlet pipe section must be flushed to remove impurities from the pipe until clear water is discharged. The flushing flow rate should not be less than the system design flow rate;
3. For the convenience of maintenance and debugging, a pre valve water supply control valve and a post valve control valve should be installed before and after the pre action device.
