Products Details

The Bellows Gate Valve (Bellows Gate Valve) is a valve that uses bellows as a stem sealing element and is widely used in applications where stem sealing requirements are strict, such as high vacuum environments and the nuclear industry. The valve is designed to ensure that there is no leakage at the stem site, thereby preventing the leakage of radioactive or valuable substances, or maintaining a high vacuum. The working principle of the bellows gate valve is that when the valve stem rotates, it drives the valve head assembly associated with the valve stem to realize the opening and closing of the valve.

The main features of the bellows gate valve include:

Use bellows instead of packing boxes on ordinary valves to form a metal seal that prevents process media from leaking outward from the stem movement clearance.
The double sealing design, that is, the bellows plus the packing, improves the sealing reliability of the valve.
The seat can be surfacing welded to ensure a reliable seal even under harsh conditions.
Ergonomic design hand wheel, making the operation easier and more convenient and safe and reliable.
The material and specifications of the bellows gate valve are diverse, and the valve body, valve cover, valve stem, valve disc, sealing surface and packing parts can be selected according to different working conditions, such as WCB, CF8, CF8M, SS304, SS316 and so on. In addition, the bellows gate valve has a wide range of sizes and rated working pressure, which is suitable for a variety of different industrial applications.

In the automatic control system of special media, such as highly toxic, corrosive, radioactive, etc., the bellows gate valve has been widely used because of its reliable sealing performance. At the same time, the bellows gate valve also has a long service life, reducing the number of maintenance and operating costs.

When selecting a bellows gate valve, it is necessary to consider factors such as its sealing performance, material selection, mode of operation and applicable media to ensure that the valve can work stably and reliably under specific working conditions.