Ball is evolved from the stopcock, the difference is cock body is a sphere, round holes or channels through its axis. When the gas
safety burner valve is rotated 90 °, in the import and export of office should be fully rendered sphere, thus cutting off the flow. Just use the rotary gas burner valve operation and a small rotational torque of 90 ° can be closed tightly. The body cavity of full equality for the media provided little resistance, through the flow channel. Generally considered the most suitable gas burner valve opening and closing done directly used, but in recent years, development has been designed to give it a throttle gas burner valve and flow control purposes. The main features of gas burner valve is its own compact, easy operation and maintenance for water, solvents, acids, and natural gas work in general media, but also for the poor working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene. Ball gas
Burner Valve can be integral, or may be modular.
Principle ball. Ball works by rotating the gas burner valve to the gas burner valve flow or occlusion. gas burner Safety
Valve Burner Valve switch light, small size, can be made into large-caliber, reliable sealing, simple structure, easy maintenance, and spherical sealing surface often in the closed state, the media can not easily be eroded, in various sectors has been widely used.
Gas burner valve is a device for supporting new gas pipeline project. Used to cut, turned, adjusting the gas pipeline, with good control characteristics and closed sealing performance. For a variety of city gas medium pipeline gas, liquefied petroleum gas and gas, oxygen.
2015年2月20日星期五
2015年2月3日星期二
The structure and selection of gas burner valve
Depending on its stroke, pneumatic control gas burner valve can be divided into two different types, namely, the angle straight trip itinerary, according to the structure points, pneumatic control gas burner valve can be divided into the butterfly, angle gas brass safety valve, sleeve gas burner valves, ball gas burner valves, diaphragm gas burner valves, Globe gas burner valves and other types.
Which, through single-seat control gas burner valve is the process of using the minimum amount of gas burner valve leakage, flow performance ideal, simple structure, can be used to leak demanding area, but its passage is relatively complex, which to some extent limit the scope of its use.
Through engine gas burner valve is through single-seat control gas burner valve opposite a gas Burner Valves, there is no strict requirements for leakage, suitable for use in large-area working pressure at present, through engine regulation is our most extensive range of applications a control gas burner valve.
Sleeve gas burner valve can be divided into two types, namely double sealed sleeve gas burner valve with single seal sleeve gas burner valve, the gas burner valve sleeve has a good stability, low noise, easy accessibility, but its price is relatively high, and higher Range Top Burner Valve maintenance requirements Therefore, using the range are also some limitations.
Diaphragm flow path is simple, its production and use is also high corrosion resistance PT-FE and PFA, it is suitable for application in alkali or acid environment, but relatively poor regulation.
2015年1月23日星期五
Classification of the gas burner valves
Range Top Burner Valve- used to automatically reduce the gas pressure inside the equipment and piping. Department of the gas valve through the gap, resulting in resistance caused by pressure loss, achieve the purpose of decompression.
According to use, depending on the purpose of the gas Burner Valve can be divided into:
1. Breaking with: gas pipeline to connect or disconnect, such as burner valves, gate valves, ball valves, butterfly gas burner valves, etc.
2. Reuse only: to prevent backflow of gas, such as check valves.
3. adjustment: used to adjust the gas pressure and flow, such as valves, pressure reducing valve.
The assignment: to change the flow of the gas, gas distribution, such as three-way stopcock, dispensing cook valves, slide cooking valves.
Press the drive, depending on the driving mode can be divided into:
1. Manual: With hand wheels, handles, levers or sprockets, etc., there are human-driven, large transmission torque when equipped deceleration devices worm gear.
2. Electric: With the motor or other electrical devices to drive.
3. Pneumatic; with compressed air to drive.
2014年12月26日星期五
Often switching can lead to self-closing valve
On the gas stove does not conduct regular inspections, appears damaged (such as gas safety burner valve, gaskets, hoses damaged), resulting in a gas leak, or operations are not standardized (eg lying cylinders, high temperature baking, do not close the valve after use, etc.), but also easy fire caused by an explosion.
At home on the gas pipeline, we can see a similar "circle Peas' device - self-closing valve is under abnormal conditions to prevent gas output, self-closing valve.
Self-closing valve in the pipe network will automatically shut down or stop gas pressure is too large, in a normal state, self-closing valve reset button at the Green Line trolley scale state, when the red line reset button on the pop-up lever, proof pressure within the gas pipeline too large, self-closing valve itself off; when the reset button lever fully recovered, then stop gas pipeline network or the occurrence of gas hose off, self-closing valve also shuts itself down. After many users are accustomed to the use of natural gas each self-closing valve manually shut down, it is not right, often open and close easily self-closing valve malfunction, causing leaks. Every time we finished dinner, turn off the stove valve, then close the gas cooker safety valve to the stove.
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