Cast iron gate valve advantage

Author:gate valve     Published time:2019-02-10 10:41     Reading times:361    

Cast iron gate valve advantage, cast iron gate valve What are the benefits? What is the advanced nature of cast iron gate valve, today we summarize for you as follows:


1, cast iron gate valve flow resistance is small. The inner medium passage of the valve body is straight through, the medium flows in a straight line, and the flow resistance is small.


2, cast iron gate valve is more labor-saving when opening and closing. Compared with the shut-off valve, the direction of movement of the ram is perpendicular to the direction of flow of the medium, whether it is open or closed.


3, cast iron gate valve height, long opening and closing time. The opening and closing stroke of the shutter is large, and the drop is performed by the screw.


4. The water hammer phenomenon is not easy to produce. The reason is that the shutdown time is long.


5. The medium can flow in any direction on both sides, which is easy to install. The gate valve channels are symmetrical on both sides.

6. The length of the structure (the distance between the two connecting end faces of the casing) is small.


7. The sealing surface is easy to wear and affect the service life. When opening and closing, the two sealing surfaces of the gate and the valve seat rub against each other, and it is easy to cause abrasion and abrasion under the action of the medium pressure, which affects the sealing performance and shortens the service life.


8. There are many contact sealing surfaces, and the processing is more complicated. Especially the sealing surface on the ram seat is not easy to process, and there are many parts.


9. Simple shape, short structure length, good manufacturing process and wide application range.


10, cast iron gate valve compact structure, valve rigidity, smooth passage, small flow resistance, sealing surface is made of stainless steel and hard alloy, long service life, PTFE packing, reliable sealing, light and flexible operation.


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