fire alarm group

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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:The main fire hydrant in the basement is connected to the municipal water supply pipe directly. Is there a fire pump and a fire pool?
Should be set, according to the building fire code, fire hydrant water consumption is greater than 15L/s, and there is no suitable alternative water sources, we should set fire pool. In addition to the underground garage located indoor fire hydrant to set a sprinkler system, must be more than 15L/S, so it must be. A fire pump is pressurized into the water in a fire pool. Connection order is: municipal water supply - fire pool - fire pump - fire water supply dry pipeOf course, the fire pool, which is also equipped with liquid level control valves and other accessories.The fire pool is not flat, but tends to slope towards the direction of the suction of the pump. And the water pump absorption tube is usually L type, in order to facilitate the collection of water, so in the pool suction section should be set sink to facilitate water pump suction.
Q:What is the diameter of the temporary fire hydrant in the construction area?
The construction area is a protected area outside diameter according to the design and calculation of the main pipe is generally between DN100~DN200; pipes between DN80~DN100; single branch bolt shall not be less than DN65; spray pipe branch pipe between DN40~DN80 pipe is not less than DN25.
Q:Fire hydrant, why the signal line?
Already built the fire signal line, fire hydrant pump is not started, the control line, did not say clearly. But if it is hydrant pump directly start the control line, of course, can meet the requirements. But could you say is the fire signal line signal line connected to the host with fire alarm, fire alarm can be connected after receiving your alarm signal fire hydrant button of the host, and then through the program control to start the fire hydrant pump.
Q:What does "fire hydrant SS100/65" mean?
The path in the project often refers to a pipe diameter range of the known, such as: various types of pipe diameter for 15 pipe corresponding to the outer diameter of 22 or 20 (wall thickness of 0.4, 0.5, 0.6, 0.8, 1, 1.2, 1.4, 1.5, 1.6, 1.8, 2, 2, 2.5. 2.8) here path often refers to a range of pipe, instead of the mean diameter and the diameter of the.
Q:Fire engines can draw water from the fire hydrant outside and fire water from the fire well, right?
No water intake is available, as long as the outdoor fire hydrant arrangement meets the fire code.
Q:What is the button for fire hydrant pump?
A button is arranged on the surface of the fire hydrant button, and when the fire hydrant is started, the press button can be pressed directly, and the red start indicator of the fire hydrant button is bright, and the yellow warning object is ejected
Q:What are the specifications for hydrants in the green belts?
The outdoor fire hydrant has ground fire hydrant and underground hydrant, and the setting of fire hydrant is as follows: relevant requirements of GB50016-2006 code for building fire protection design. Indoor and outdoor fire hydrant should have obvious signs, and components are complete, components should include: water gun head, water bag, hydrant special wrench (middle hole is square), components box should be set beside fire hydrant.
Q:Function of water outlet of fire hydrant
When the outdoor hydrant is opened, the valve will block the hole and does not affect the normal water. When the fire hydrant is opened, the remaining water is discharged and the corrosion can be reduced! It's open for hours to check if there is water in the pipe!
Q:Fire hydrant, cast iron welding, any use?
Change the chemical composition of the weld, adding C, Si and other elements into the electrode;
Q:Fire hose and water gun head connection, fire hose and hydrant connection, sealing is not good, always leaking
Take a look at the processing quality of the seal part of the water cannon. Look at the quality of the rubber seals. Strength elasticity is good, hardness is moderate, thickness is enough.

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