Where there is a pipeline, the valve is inseparable. The valve is installed on the pipe and manages the circulation of the fluid medium in the pipeline. It is an important control part. However, the valve is likewise a wearable component. A common valve loss in our life is that the valve is not tightly secured, leading to leakage.

A check valve, also known as a non-return valve or one-way valve, is a mechanical device that allows fluid (liquid or gas) to flow in only one direction while preventing reverse flow. The working principle of a check valve is relatively simple.

Butterfly valve is a kind of valve that uses a circular butterfly plate as a start and close part and rotates with the valve stem to open, close and adjust the fluid channel. The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0° and 90°. When it rotates to 90°, the valve is in a fully open state.

Valve sealing test methods and common problems: I. Test purpose and method The sealing performance of the valve is an important factor to ensure the safety of valve operation. Therefore, a sealing test must be performed when the valve is installed, maintained or replaced. The main methods for valve sealing test are water pressure test, air tightness test, diving test, etc., among which water pressure test is the most common test method. Before testing, it is necessary to check whether

Soft-sealed gate valves use soft materials such as rubber and PTFE as sealing fillers, while hard-sealed gate valves use metal sealing structures, such as metal gaskets and bellows.

The sealing performance of the valve is an important factor to ensure the safety of valve operation. Therefore, a sealing test must be performed when the valve is installed, maintained or replaced. The main methods for valve sealing test are water pressure test, air tightness test, diving test, etc.,

The sealing performance of the valve is an important factor to ensure the safety of valve operation. Therefore, a sealing test must be performed when the valve is installed, maintained or replaced. The main methods for valve sealing test are water pressure test, air tightness test, diving test, etc.,

CCTV Beijing reported on May 23 that according to the China Manned Space Engineering Office, the Shenzhou-16 manned spacecraft and the Long March-2F Yao-16 carrier rocket combination were transferred to the launch area on the 22nd, and it is planned to launch at an opportune time in the near future

Y-type strainer is an indispensable filter device for the pipeline system of conveying medium. Y-type strainer is usually installed at the inlet of pressure reducing valve, pressure relief valve, fixed water level valve or other equipment to remove impurities in the medium. , to protect the normal use of valves and equipment.