This 1 1/2 inch process steam pressure regulator is designed for autoclaves, steam tables/irons, vulcanizers and single radiators. It is also used on sterilizers, process lines, testing fixtures and oil lines. It is highly sensitive to reduced pressure changes, and carries full volume with minimum pressure drop. It features an iron body with tight seating and teflon valve disc, and adjusting spring for reduced pressure range of 30 to 100 psi (2.1 to 6.9 bar).