Single stage pressure regulators are recommended when precise control of delivery pressure is not required. The two stage regulator provides precise control of the gas being consumed. Brass regulators are good for most general use applications. When working with low concentration mixtures of hydrocarbons where trace contaminants may be an adsorption problem, brass regulators with stainless steel diaphragms may be more desirable. An all stainless steel regulator is best used for high purity gases.
Corrosive gases require regulators designed specifically for the gas type.
Storage Requirements Compressed gas cylinders should be stored in an organized, ventilated, well-lit place away from combustible materials. Gas types should be separated from incompatibles and the areas marked. No manufacturer applied labels, decals, or cylinder content information should be damaged or removed from the cylinder. Any storage area must be protected from excessive heat, open flame, or ignition sources. Storage outside should be above grade, dry, and protected from weather conditions.