... control delivery pressure only 1.The primary function of regulator is to reduce the high pressure gas in ... from cylinder to a piece of equipment.2.A regulator is not a flow control device. It is ... provide Brass, Stainless steel, Chrome plated regulators.5.We provide regulator for various gases like Oxygen, Acetylene, LPG, Nitrogen, Hrydrogen, ... cn if have questions. oxygen gas pressure regulator