DBV Company and Valves
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Installation Requirements of Valve
Installation Requirements of Valve DBV, as valve manufacturer, tells the installation requirements of valve in this paper. Before being installed, the valve should be done pressure testing. In the test, we should check out 10% of each batch products(same specifications, same brand and same type), and no less than 1 piece. If there are substandard products, such as leaks and cracks , then check 20%. If there are still unqualified products, each valve should be tested or all are returned. For the closed-circuit valves, which are installed at the main pipe as the role of cut off, they should be done shell testing and seal testing one by one. And the pressure of shell testing and seal testing both should meet the design requirements and factory regulations. After passing the tests, valves are allowed to be installed in the project. In the installation, people should ensure that the valves are at the correct positions and characteriz...
You Really Know The Safe Operation of Pneumatic Ball Valve ! ! ?
You really know the safe operation of pneumatic ball valve ? You really know DBV ball valve? Let we see the operating instruction. In the pipeline, pneumatic ball valve is mainly used to quickly t off flow , which also distribute and change the flow direction of the medium. It is convenient to be maintained because its structure is simple. And in general the sealing ring is movable, so it is easy to be disassembled and replaced. With the continuous evolution of the valve production process, different types of pneumatic ball valve have emerged and sealing type and material requirements are not the same. To use it can reduce the product types of production line, which is suitable for piping system of light structure, low pressure(small differential pressure) and corrosive medium. Therefore, it is important to pay attention to the operation and ensure the operation of pneumatic ball valve is safe so that person is safe. Before operati...
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