... gases. such as, if need to remove water, could fill in silica gel or molecular sieve; if need to remove CH2, could ... . This gas purifier could bear 0.8MPa pressure, inside use silica rubber material sealing rings, which content low sulphur. Each three ... control each gas. Smart and easy using. Each pipe fill in 120ml desiccant, three levels. While working, no need electricity and ...