Inquiry, or HDKS groove wet alarm valves Please find the ring Yiu Valve Co., Ltd., Central Yiu brand the HDKS groove wet alarm valve is not only low prices and superb quality! Delivery is very timely, so shipping is very fast 
 My professional the sales HDKS groove wet alarm valve to please the new and old customers to call or fax advice to buy Contact: Yang Xiaowan 
 Ring Yiu engaged in the sale of fire valves, water treatment equipment, is a modern supplier of special products for fluid technology. The main valve professional products are: signal gate valve, flexible seal gate valve and signal butterfly valve, pressure foam proportioning device, spray nozzle, safety valve, hydraulic control valves, steam traps, filters, check valves, pressure reducing valve, drain valve , diaphragm valves, plunger valves, needle valves, flame arresters, exhaust valve, HDKS groove wet alarm valve, flow indicator and a series of fire protection products, such as various types of valves. 
 Product Description 

 Trench HDKS wet alarm valve characteristics 
 Of the valve with the delay, the water alarm (pressure switch) connected to form a wet alarm valve system, it is one of the most critical components in wet automatic sprinkler system, water supply, fire plays servers should work, direct alarm . 

 Second, HDKS groove wet alarm valve works 
 Automatic sprinkler systems engineering should wait state, the entire pipe network is full of design requirements of the pressure of water, wet alarm valve disc is automatically shut down. In the wet systems, protected areas, in the event of fire, under the action of the fire temperature, a closed nozzle temperature to start the sprinkler. At this time, wet alarm side of the pipe network water pressure drop, the valve cavity formation pressure, under the action of water, the valve opens and water supply for fire fighting. A part of the water inflow to alarm pipeline, water alarm beep alarm, and the pressure switch connected to electrical contacts to spread the alarm controller, audible and visual alarm, showing the fire region, start the fire pump to the water supply pipe network. 

 Central Yiu valve products are widely used for urban construction, municipal, environmental protection, fire protection, electric power, metallurgy, petrochemical, chemical, gas, mining, food and other industries. Wholeheartedly with the domestic and foreign businesses win-win cooperation and common development, create brilliant! Ring Yiu for your dedicated service! !