The 435 Series regulator is intended for secondary pressure control of ultra-high purity inert gases, including non-corrosive and liquefied gases. Unlike most pipeline equipment, the 435 Series regulator is rated to full cylinder pressure, making it ideal for point-of-use pressure control in high purity gas distribution systems. The bare brass body eliminates contamination from chromium or nickel and ensures no confusion with stainless steel in mixed material environments.