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Apr 14, 2024Valve Daily Maintenance
1. Pay attention to the storage environment of the valve. It should be stored in a dry and ventilated room, and both ends of the passage should be blocked. 2. The valve should be inspected regularl... -
Apr 13, 2024Valve Cleaning Steps
The valve parts must go through the following process before assembly: 1. According to the processing requirements, some parts need to be polished, and there should be no processing burrs on the su... -
Apr 12, 2024Other Requirements For Valves
1. Purge the assembled valve with nitrogen for at least 1 minute. 2. The air tightness test must use pure nitrogen. 3. After passing the air tightness test, encapsulate and seal with a clean polyet... -
Apr 11, 2024Valve Sealing Requirements
The sealing performance of a valve refers to the ability of each sealing part of the valve to prevent medium leakage. It is the most important technical performance indicator of the valve. There ar... -
Apr 10, 2024Valve Performance Testing Requirements
1. When a valve of a certain specification is manufactured in batches, an official agency should be entrusted to conduct the following performance testing: ① The opening and closing torque of the v... -
Apr 09, 2024Valve Specification Requirements
1. The valve model should indicate the national standard number requirements based on it. If it is an enterprise standard, the relevant description of the model should be indicated. 2. The working ... -
Apr 08, 2024Valve Assembly Requirements
Cleaned parts must be kept sealed for installation. The requirements for the installation process are as follows: 1. The installation workshop must be kept clean, or a temporary clean area must be ... -
Apr 07, 2024Valve Installation Requirements
1. Before installing the valve, carefully check whether the model and specifications of the valve used are consistent with the design; 2. Check whether the valve can be used under the required cond... -
Apr 06, 2024Valve According To Valve Body Material
(1) Metal material valve: Its valve body and other parts are made of metal materials. Such as cast iron valves, cast steel valves, alloy steel valves, copper alloy valves, aluminum alloy valves, le... -
Apr 05, 2024Valve According To Connection Method
(1) Threaded connection valve: The valve body has internal threads or external threads, and is connected to the pipe thread.. (2) Flange connection valve: The valve body is equipped with a flange a... -
Apr 04, 2024Valve According To Main Parameters
According to nominal pressure: (1) Vacuum valve: refers to a valve whose working pressure is lower than standard atmospheric pressure. (2) Low pressure valve: refers to valves with nominal pressure... -
Apr 03, 2024Valves Are Classified According To Their Functions And Uses
By function and use (1) Shut-off valve This type of valve has the function of opening and closing. It is often installed on the inlet and outlet of cold and heat sources, the inlet and outlet of eq...
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