ZSFC100-1.6 Dry Alarm Valve
Category:
Dry alarm valve
- Product Description
-
A dry alarm valve is used in dry sprinkler fire suppression systems. These systems are typically used in buildings where the ambient temperature is below 4℃. In standby mode, compressed air in the system network seals the fire suppression water on the supply side via the dry alarm valve. When a sprinkler activates, causing a drop in network air pressure to a certain value, the dry alarm valve opens, and pressurized water enters the system network to begin fire suppression.
Product Overview
Dry alarm valves are used in dry sprinkler fire suppression systems. These systems are typically used in buildings where the ambient temperature is below 4℃. In the standby state, compressed air in the system network seals the fire pressure water on the supply side via the dry alarm valve. When a sprinkler activates, causing a drop in network air pressure to a certain value, the dry alarm valve opens, and pressurized water enters the system network through the valve to begin fire suppression.
Working Principle
The dry valves produced by our factory are characterized by their small size and light weight. They use an eccentric valve disc. When the valve is in the standby state, the valve cover rests on two eccentric valve seats. The inner seat is the water valve seat, and the outer seat is the air valve seat. The annular space (intermediate chamber) between the two valve seats communicates with the atmosphere through the alarm pipe. There is a small amount of pre-injected water above the valve (to increase the sealing of the valve disc) and enough compressed air to close the valve disc. If any sprinkler (or multiple sprinklers) on the system side opens, causing a drop in compressed air pressure, the dry valve will open when the air pressure drops to about one-fifth of the water pressure on the supply side. Pressurized water flows into the pipe on the system side, spraying from the open sprinkler to begin fire suppression. At the same time, water flows through the intermediate chamber to the alarm port to drive the pressure switch and the hydraulic alarm bell.
This valve has anti-reset and external reset devices. After the valve opens, it must be reset by externally rotating the reset handle counterclockwise (after resetting, the handle must be returned to the vertical position).Model Specifications Rated Working Pressure Nominal Diameter Flange Outer Diameter (mm) Flange Bolt Hole Center Diameter (mm) Number and Diameter of Bolt Holes (mm) ZSFC100-1.6 1.6MPa DN100 220 180 8-φ18 ZSFC150-1.6 DN150 285 240 8-φ22 ZSFC200-1.6 DN200 340 295 12-φ22
Hongan Fire-Fighting Equipment Co., Ltd. specializes in the research and development and manufacturing of various fire-fighting equipment. Products cover pre-action systems, wet alarm valve assemblies, dry alarm valve assemblies, deluge valve assemblies, water flow indicators, pressure switches, alarm valves, sprinklers, fire hydrants, foam fire extinguishing systems, fire extinguisher products and accessories, fire valves, fire hoses and related control components, etc., hundreds of models. All products are designed and manufactured strictly in accordance with national standards, and have passed the inspection of the National Fire Product Testing Center, and meet the requirements of voluntary certification of fire products.
The company continues to break through in product innovation, using advanced CAD design software and automated processing equipment to ensure the precision and performance stability of each product. Products are widely used in industrial plants, high-rise buildings, commercial complexes, underground garages, data centers, airports, schools and other key fire prevention places. Hong'an not only provides single-product sales, but also can customize complete fire protection system solutions according to customer needs, and has the ability of project-based supporting and technical services.
To ensure product quality, the company has established a complete quality management system. Raw material procurement is strictly screened, production processes are strictly controlled, and finished products must pass multiple performance tests before leaving the factory. Over the years, the company has established a stable sales network throughout the country and exported to international markets such as Southeast Asia, the Middle East, and South America with high-quality products, reasonable prices, and fast response services, and has won widespread recognition and trust from customers at home and abroad.
In the future, Hongan Fire-Fighting will continue to adhere to the mission of "guarding life safety", continuously promote technological innovation and product upgrades, and provide global users with more reliable and intelligent fire protection products and services.
Product Keywords:
Dry alarm valve
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ProductInquiry
Hongan Fire Equipment Co., Ltd.
No. 101, Nantong Road, Ximei Street, Nan'an City, Quanzhou City, Fujian Province
