Founded in 1884, Clark-Reliance® has a long and rich history of innovation.

Clark-Reliance® provides solutions to customers in more than 120 countries in the power generation, refining, gas processing and chemical industries. Key acquisitions over the past several decades have established Clark-Reliance as an industry leader in the design, manufacture and distribution of level indication and control and filtration and separation products and services.

Clark-Reliance Instrumentation and Controls Group:

Jerguson® liquid level valves and gauges, level transmitters and switches, Reliance® boiler level controls, Jacoby-Tarbox® sight flow indicators and Clark Steam Specialties. Ernst Flow Industries® supplies a wide range of pressure gauges, level indication products and components for industrial and commercial equipment. In addition, Clark Reliance Purity Products Group manufactures Anderson® separators, HYCOA transfer valves and duplex lube oil filtration systems, filters, fuel gas filtration/separation systems designed by National Filtration Systems. Oil Filtration Systems® equipment is used to clean and dry lube oil, transformer oil and fuel oils, as well as to remove varnish from lube oil used for rotating equipment. Enervac® manufactures transformer oil purification and SF6 oil purification and regeneration equipment.