1. Valve selection principle:
The selected valve should meet the following basic principles.
(1) Safety and reliability of petrochemical, power station, metallurgy and other industries require cont...
The check valve is an important control element used to prevent fluid backflow. It is usually installed at the outlet of the water pipe and effectively prevents the water from flowing back. There a...
Valve is the most common equipment in chemical enterprises, seemingly easy to install valves, but if not in accordance with the relevant technology, it will cause safety accidents……
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① Use a file to remove the burr on the strained part of the valve stem; for the shallower part of the strain, use a flat shovel to process it to a depth of about 1mm, and then use an emery cloth or...
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