It is often used in places with strict requirements on valve stem sealing, such as high vacuum applications and nuclear industry. Use bellows instead of or in combination with stuffing boxes on ordinary valves.It completely eliminates the shortcomings of the common valve stem packing seal aging fast and easy to leak, not only improves the use of energy efficiency, increases the safety of production equipment, reduces maintenance costs and frequent maintenance, but also provides a clean and safe w…

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Checks are also called check valves and check valves. However, in actual use, many users found that it was obvious that the check valve was installed and did not start the check valve effect. Today, we will analyze the related problems of the check valve check function failure:Since the non-return valve is the unidirectional flow of the medium, you must pay attention to the installation direction of the valve, and install it according to the direction of the medium flow arrow on the valve, or det…