Blind valve in the installation should pay attention to what
As we all know, the blind plate valve is mainly used in industrial and mining enterprises, municipal, environmental protection and other industries in the gas medium pipeline system, especially suitable for harmful, toxic, flammable gas absolute cut off. The transmission form is mainly divided into manual, electric, pneumatic, etc., which can be purchased according to the use environment and requirements. Blind valve in the installation should pay attention to what it, specific details are as follows.
blind plate valve
1. Appearance inspection must be carried out before installation. For valves with working pressure greater than 1.0 MPa and cut off on the main pipe, strength and tight performance tests should be carried out before installation, and only after passing the tests are allowed to be used.
2. When installing the spectacle valve, pay special attention to the flow direction of the medium. The normal flow direction of the medium should be consistent with the arrow direction indicated on the valve body, otherwise the normal flow of the medium will be cut off. The bottom valve should be installed at the bottom of the water pump suction pipe.
3, glasses valve is closed, will produce water hammer pressure in the pipeline, serious when will lead to damage to the valve, pipeline or equipment, especially for large mouth pipeline or high pressure pipeline, it should cause the height of the check valve selection attention.
4. When the left and right valves are loosened, the medium will overflow. In order to ensure safety, when closing, please close the gas butterfly valve before the blind plate valve. At the same time, please take ventilation and other measures to ensure safety.
5. The rubber sealing ring must not stick or rub with the valve body to prevent damage to the rubber sealing ring and destroy the working performance of the valve.
6. The pipeline should also have elastic deformation or displacement that meets the above displacement during the opening and closing of the valve. It is recommended to install it in the following form.
F43X, F943X, F643X type fan valve and other absolute cut-off valve equipment in the pipeline comparison, with a novel structure, small size, convenient operation, rapid action, cut-off gas performance is absolutely reliable.