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Some knowledge about gas mass flow controllers

Some knowledge about gas mass flow controllers is for you to talk about; when you take over a piece of equipment, do not rush to use it. No matter whether it is a simple, complicated or special gas system, we all need to establish our own operation. Procedures.
Keep this equipment in a safe place. Because it is a very sophisticated device, it must not be subject to shock and vibration. If we do not need to use the device, we need to pay attention to whether the device is placed in an environment. Properly, we must do a good job of safekeeping. Need to do regular calibration, in principle, need to do a good job of regular calibration. The sealing material of this equipment is fluoro rubber, which is suitable for most gases. However, some gases require the use of a designated rubber seal:
Ammonia resistance to ammonia rubber
Acetone, toluene Silicone rubber
Strongly corrosive media such as boron trichloride, boron tribromide, etc. Flowmeters with PTFE seals or metal seals We also need to ensure that the pressure difference between the inlet and outlet of the device needs to be within the range of the index;

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