... delivery pressure only 1.The primary function of regulator is to reduce the high pressure gas in ... cylinder to a piece of equipment.2.A regulator is not a flow control device. It is ... regulator for various gases like Oxygen, Acetylene, LPG, Nitrogen, Hrydrogen, Zero Air, Argon, Carbon dioxide, Helium, Nitrous, Clorine, Amonia, Medical oxygen ... com dot cn if have questions. oxygen gas pressure regulator