GPE Controls (formerly L & J Technologies), based in the USA, GPE Controls have been designing and manufacturing industrial tank equipment for more than 90 years. GPE Controls is widely respected for its expertly designed, highly engineered products. GPE Controls process equipment has set the industry standard for quality, safety, precision, and accuracy.

They specialise in the supply of industrial safety relief valves and tank fittings including; conservation vents, vapor recovery systems, specialty valves, gas blanketing valves, tank fittings, and flame and detonation arresters.