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How to choose a gate valve

2016-05-20

1, in the oil, natural gas transportation project, the general use of single gate or double gate valve. If the pipeline needs to be cleaned, the open stem gate valve with diversion hole of single gate plate or double gate plate is generally used.

2. For the transportation engineering and storage equipment of refined oil, the gate valve of single gate or double gate without diversion hole is generally used.

3. For pipelines with suspended particles, knife-type flat gate valves are generally used.

4, municipal liquefied gas transportation project, generally use a single gate or double gate soft seal open rod gate valve.

5, municipal water supply projects, generally use single gate or double gate without diversion kongming rod gate valve.

6, can only be fully open or fully closed, can not be used for adjustment and throttling occasions, the general use of wedge gate valve.

7. High temperature, high pressure medium or low temperature (cryogenic) medium. Such as high pressure steam, such as liquid ammonia, liquid hydrogen, liquid oxygen and other media, the general use of wedge gate valve.