Precautions for use of high purity sulfur hexafluoride
Published on:2018-01-05 Click:235Never pull,roll or slide cylinders when using high purity sulfur hexafluoride.Use a suitable wheelbarrow to move the cylinder and do not attempt to lift it by grabbing the lid.Ensure that the cylinder is in a fixed state during the whole process of use.A separate control valve is used to safely release gas from the cylinder.Use a check valve to prevent backflow.
It is also important to note that no part of a high-purity sulfur hexafluoride cylinder should exceed 125°F(52°C).High temperatures can cause product leakage in cylinders.If the USER has difficulty operating the cylinder valve,DIScontinue use and contact the supplier.Do not insert tools(such as wrenches,screwdrivers,etc.)into the bonnet.Otherwise it will damage the valve and cause leakage.Use an adjustable wrench to open an overtight or rusted bonnet.
High purity sulfur hexafluoride can corrode most metals in the presence of moisture,so moisture should not be present in the system.Stop the system before it is used.Dry inert gases(helium,nitrogen,etc.)should be purged after use.Carbon steel,stainless steel,Monel alloy(Ni-Fe-Cu)and copper can be used without moisture.Ni-Mo-Cr alloys,platinum and gold have excellent corrosion resistance and can be used under damp conditions.Kel-F or Teflon can be used as washer materials of choice.
Pressure requirements should be considered when selecting materials and designing systems.All sulfur hexafluoride gas lines and equipment should be grounded.All electrical equipment must be explosion-proof and fireproof.Compressed gas cylinders can only be refilled by qualified compressed gas manufacturers.