fire alarm

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Product Description:

alarm bell
1.Have CE certificate
2.can be customized in diffient volt and color
3professional in this field for 17years

warning bell
1) We have electric fire bells in a series of different specifications

2)  Voice in the form of vibrato

3)with intermittent. Resistance to work long hours, no electromagnetic interference. Electrical service life

4)can be based on customer requirements, customized products with different voltage
5) Welcome to E-mail us for further information

sizedia(mm)current(<=ma)power(va)
255508
3758010
41009722
615010025
820010525
1025012530
1230015035


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Q:How does the hydrant with caliber 50 calculate the amount of water?
The fire fighting system includes outdoor fire hydrant system, indoor fire hydrant system, fire extinguisher system, and some automatic sprinkler system, water gun system, gas fire extinguishing system, fire detection system, water mist system and so on. Fire hydrant mainly for fire engines from the municipal water supply network or outdoor fire water network to implement fire fighting, can also be directly connected to the hose, water gun fire extinguishing. Therefore, indoor and outdoor fire hydrant system is also one of the important fire fighting facilities.
Q:What is hydrant?
Hydrants, officially called fire hydrants, are a type of fixed fire fighting facilities, which control fuel, insulate fire and eliminate fire. Indoor fire hydrant and outdoor hydrant. The fire fighting system includes outdoor fire hydrant system, indoor fire hydrant system, fire extinguisher system, and some automatic sprinkler system, water gun system, gas fire extinguishing system, fire detection system, water mist system and so on. Fire hydrant mainly for fire engines from the municipal water supply network or outdoor fire water network to implement fire fighting, can also be directly connected to the hose, water gun fire extinguishing. Therefore, indoor and outdoor fire hydrant system is also one of the important fire fighting facilities.
Q:Function of water outlet of fire hydrant
The function of the discharge hole is to check the water on the valve, and to protect the hydrant. In the frozen north, in the use of fire hydrants, no drain holes, then exposed part of the ground water pipeline will be solidified into ice, broken fire hydrant; drain holes can discharge the fire hydrant valve above the water to prevent the freeze cracking fire hydrant.
Q:What's the difference between fire hydrant and fire hydrant box?
Fire hydrant is mainly outdoors, no water hose, is convenient for firefighters in the supply of fire engines or water supply or fire engines can not enter the area when the facilities used.
Q:What is the function of fire hydrant seals?
Fire hydrant seal: closed, to prevent unauthorized use and fire hydrants.
Q:What's the use of self rescue fire reel in hydrant?
Fire hose reel is called "fire hose reel". It is composed of valves, input pipes, hoses, spray guns, etc., and can be used to spray fire extinguisher in the process of expanding hoses quickly. Open the cabinet, release the fire reel, connect the water pipe, turn on the water valve, you can put out the fire. There is a water pipe in the fire reel. We can draw the water pipe from the reel to fire in the place where there is fire.
Q:How do you read the pressure meter on the water test device at the end of the fire hydrant?
Hydrants, officially called fire hydrants, are a type of fixed fire fighting facilities, which control fuel, insulate fire and eliminate fire. Indoor fire hydrant and outdoor hydrant. The fire fighting system includes outdoor fire hydrant system, indoor fire hydrant system, fire extinguisher system, and some automatic sprinkler system, water gun system, gas fire extinguishing system, fire detection system, water mist system and so on.
Q:Proper connection of fire hose with indoor hydrant and water gun
Use of fire hose. When using the fire hose, the high pressure hose should be placed close to the water pump. The water hose after the water filling should be prevented from twisting or bending suddenly, and the collision of the water hose interface shall be prevented
Q:How is the temporary water pipe line arranged on the construction site, and how is the fire hose line arranged? How big is the diameter?
Fire water meter of the caliber is generally 100MM, 75MM, 50MM three kinds, each has gate wells, to correspond to different buildings. The theory on the number, the greater the diameter. Each layer of high-rise buildings have fire interface, low layer building is a fire interface, usually in front of the building or buildings, some commercial buildings should install automatic fire sprinkler device, installed by tap water engineering company, the fire department approval before completion. The other is not to open fire as he used.
Q:How to distinguish between fire pump adapter and outdoor fire hydrant from the appearance
See is rough old heavy outdoor fire hydrant from the appearance, is usually a single layout, fire pump adapter is slim, pass. In addition from the interface from the judgment: the fire pump adapter with 2 DN65 interface; the outdoor fire hydrant has 2 DN65 ports and 1 DN100 ports.

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