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Hard seal valve structure diagram

Sep 18,2021 Posted by Bundor

Industry News
Hard-sealed valves refer to valves whose sealing surface and seat are made of metal, such as our common hard-sealed butterfly valves, hard-sealed gate valves, hard-sealed ball valves, hard-sealed globe valves, hard-sealed check valves, and so on. The following Bundor valve uses examples to introduce you to the structure and structure diagram of the hard-sealed valve.

Hard seal butterfly valve
Hard-sealed butterfly valves mostly refer to triple eccentric butterfly valves. The triple eccentric butterfly valve means that the shaft center of the valve stem deviates from the center of the disc and the center of the body at the same time, and the rotation axis of the valve seat has a certain angle with the axis of the valve body passage.

Hard seal gate valve
The body materials of hard seal gate valves are mainly cast steel, stainless steel, and forged steel. The ram and the internal flow passage are sealed by Stellite alloy accumulation welding. There are also hard-sealed gate valves made of gray cast iron with brass seals.

Hard seal check valve
Most of the swing check valves in the check valve are hard seals. This kind of check valve can adapt to a relatively large pressure difference, but the sealing performance will be worse than that of the soft seal check valve.

There are many types of hard-seal valves. This article introduces you to three common structure diagrams. If you want to know more about the structure of hard-seal valves, you can click on the online customer service or send an email to Make a consultation.

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