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All welded manual ball valve of filter screen
    Time: 2019-10-08 10:50:41    


【Main technical parameters 】

Product Description:


All welded filtering ball valve is a new type of self filtering welding ball valve, which solves the problems such as the limitation of installation conditions and the difficulty of cleaning existing in the installation of filter in the existing pipeline. The design is reasonable, the structure is compact, the operation is flexible and labor-saving, and the installation and maintenance are very convenient, which not only significantly reduces the occupation of space, but also helps to reduce the cost and widely promote the application.


Working principle:


Ball valve is an effective and necessary cut-off device in the pipeline of fluid medium transportation. In order to remove the impurities and dirt in the fluid medium and keep the pipeline clean and smooth, it is necessary to set up a filter in the pipeline to improve the quality of the fluid. The installation of filter and ball valve in the existing pipeline is often limited by the use conditions due to the large space occupied, and it is difficult to remove and wash the filter.


When the self filtering welding ball valve is open and the fluid medium passes through the through-hole internal organs of the ball, the filter net set by itself can filter the fluid medium. When the ball rotates 90 degrees clockwise, the self filtering welding ball valve is closed, which plays the role of cutting off the fluid medium in the transmission pipeline.


The side wall of the valve body is provided with a connecting middle flange and a blowdown pipe connected with the cleaning water pipe, which can clean the filter screen conveniently and quickly by hitting the middle channel, a flange cover and a blowdown pipe, or an electric valve or a pneumatic valve can be set on the blowdown pipe, so as to realize the automatic flushing of the filter network. If the filter screen is damaged, open the middle flange cover to replace it.

Summary


All welded filter ball valve has a multi-purpose function of one valve, which not only cuts off the medium, but also has a filtering function, which not only saves the installation space, but also saves the traditional prefilter. The installation and cleaning are simple, convenient, all welded structure, and the service life is longer.


Technical features:


1. Integral welded ball valve, no external leakage.


2. The valve seat is composed of teflon seal ring spring, which has strong adaptability to pressure and temperature changes, and will not produce any harmonic leakage within the marked pressure and temperature range.


3. The machining process of the sphere is tracked and detected by advanced computer detection position, and the machining density of the sphere is high.


4. The sealing ring is made of c-ptfe containing 20% carbon to ensure no leakage.


5. Compared with similar products of the same specification, the valve body is small, the reset is light, the appearance is beautiful, and the service life is long.


6. The valve body, ball body and side valve body are all made of slotted steel pipe. The valve rod is sealed with two "O-rings" and has the function of blow out prevention.


7. The filter screen and the ball table are integrated. The ball valve of the filter screen is connected in the pipeline and has the filtering function. It can replace the filter for use. It has a multi-purpose effect of one valve, saves the installation space and operation cost of the pipeline, and can block the impurities with a diameter of 4.5mm.


8. The filter screen adopts the slope mouth design to ensure the normal passage of the medium and the normal operation of the valve when the impurity particles are blocked. The design of pressure relief foot can adjust the pressure difference between the inside and outside of the valve body and improve the safety performance of the valve. At the same time, the screw ball valve can be used to replace the pressure relief valve, so that the operation is more time-saving, labor-saving, convenient and flexible.