fire alarm round

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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


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Q:Is there a fire hydrant in the facade room?
Fire hydrant installation store room is to prevent the occurrence of fire accident more and set up, but only bring inconvenience to the residents, belongs to the normal.
Q:Difference between starting button and alarm button of fire hydrant box
Popular speaking: fire hydrant pump button press down to the host fire alarm at the same time, you can start the fire pump, and can receive the pump operation of the feedback signal. You say the alarm button should refer to the hand newspaper, it goes down to the host only to report the fire, it has an alarm telephone jack.
Q:What is the function of a fire hydrant?
It is generally believed that as soon as the fire engine arrives at the fire, water can be immediately put out and the fire put out. In fact, in the fire brigade equipped with fire engines, a considerable part of the water is not, such as lifting fire engines, rescue vehicles, fire lighting vehicles, etc., they must be used in conjunction with fire extinguishing fire engines. While some fire engines are limited in their carrying capacity, they are also in urgent need of water sources when they are extinguishing the fire. At this point, the fire hydrant will play a huge water supply function.
Q:Fire hydrant valve, hydrant hose, gun head for two places, what does this sentence mean?
Hydrants are mainly fire engines from the municipal water supply network or outdoor fire water supply network to implement fire fighting, but also can directly connect hoses, water cannons, fire extinguishing.
Q:Are hydrants, feed pumps, and fire pumps alike?
Fire pump is only used in the fire, usually by the high level fire water tank and booster pressure regulating pump to maintain system pressure, that is temporary high voltage system.
Q:Will the fire hydrant press the pump button to call the police?
The automatic fire alarm system design specification does not specify must set the hydrant button, so only in some engineering manual alarm button is arranged on the fire hydrant and fire hydrant button next to the function (did not set fire hydrant, fire hydrant button in) this approach is also checked by the fire department.
Q:How to use indoor hydrant
When a fire occurs, found from the nearest fire hydrant, open the door of the fire hydrant box, remove the hose, the hose is connected to the fire hydrant outlet, the other end is connected with the water, pull to the fire point near the rear can open the hydrant valve, when the fire pump control cabinet is in automatic state directly pressing the button to start the fire hydrant fire pump.
Q:What is the minimum design pressure for outdoor fire hydrants?
Outdoor fire water supply when using high-pressure or temporary high-pressure water supply system, water supply pipeline pressure should be able to guarantee the total water reached the maximum and the highest water in any building, gun full water column is still not less than 10m; when the low pressure water supply system, outdoor hydrant outlet pressure from the ground is not outdoor design should be less than 0.1MPa.
Q:Fire hose and water gun head connection, fire hose and hydrant connection, sealing is not good, always leaking
In theory, there are two solutions, one is the replacement of fire hose buckle or rubber gasket, and the other is the replacement of fire hydrant port interface.
Q:What is the distance between fire hydrant and road?
The outdoor fire hydrant shall be determined according to the water consumption of the outdoor fire hydrant specified in section 7.2.2 of GB 50045-95, and the water consumption of each hydrant shall be 10 ~ 15L/s.

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