ZSFY150-1.6 pre-action alarm valve
Category:
Pre-action automatic alarm valve
- Product Description
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A pre-action device consists of a pre-action alarm valve group, a control panel, a pressure maintaining device, and an air supply device. It is a one-way valve group device that allows water to flow into the sprinkler system in one direction while simultaneously sounding an alarm through electric, pneumatic, mechanical, or other methods. A pre-action device, together with closed sprinklers, inflation equipment, water supply facilities, and pipes, constitutes a pre-action system. In the standby state, the water distribution pipes are not filled with water. Depending on the application of the pre-action system, there are two automatic control methods for the pre-action device: one is activated only by a signal from the fire alarm system, and the other is activated by signals from both the fire alarm system and a pressure switch installed on the inflation pipe.
Product Overview
The pre-action device consists of a pre-action alarm valve group, control panel, air pressure maintaining device, and air supply device. It is opened by electric, pneumatic, mechanical, or other methods, allowing water to flow unidirectionally into the sprinkler system while simultaneously sounding an alarm. It is a one-way valve group device.
The pre-action device, together with closed sprinklers, inflation equipment, water supply facilities, and pipelines, constitutes a pre-action system. In the standby state, the water distribution pipelines are not filled with water. Depending on the application of the pre-action system, there are two automatic control methods for the pre-action device: one is activated solely by a signal from the fire alarm system; the other is activated by signals from both the fire alarm system and a pressure switch installed on the inflation pipeline.Working Principle
The water supply side and control chamber of the pre-action device are connected by piping. In the standby state, the control chamber is filled with pressurized water, while the system side is filled with 0.03MPa~0.05MPa air pressure to detect pipeline tightness. When a fire occurs, after the fire control center receives the fire alarm signal from the fire alarm system, it activates the solenoid valve on the alarm valve, causing the pressure in the control chamber to rapidly decrease, exceeding the adjustment limit of the throttle plate. The valve component instantly opens, and water from the supply side flows into the system side to replenish the sprinkler network. The automatic air vents on the sprinkler network exhaust air from the network. An anti-reset device prevents the valve from automatically resetting. The closed sprinklers open and spray water to extinguish the fire. A small portion of the water flows to the water motor gong and pressure switch. The water motor gong sounds a continuous alarm, and the pressure switch sends a signal back to the fire control center, simultaneously starting the water pump to continuously supply water. The fire control center controls the audio-visual alarm, achieving automatic sprinkler fire extinguishing and alarm purposes.
Specifications ZSFY100-1.6 ZSFY150-1.6 ZSFY200-1.6 Working Pressure L6 Mpa Sealing Test Pressure 3.2 Mpa Alarm Pressure High pressure: 0.06MPa, Low pressure: 0.02MPa System Side Inflation Pressure 003-0.05MPa Flange D 220 285 340 D1 180 240 295 d 18 22 22 n 8 8 12 Applicable Ambient Temperature 4°C-70°C
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:
Pre-action automatic alarm valve
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Hongan Fire Equipment Co., Ltd.
No. 101, Nantong Road, Ximei Street, Nan'an City, Quanzhou City, Fujian Province
