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The first Syntron® Iris Valve was designed in the mid 1950’s and has not looked back for 60+ years

The Syntron® brand name is recognized worldwide and is known for expertise in providing product solutions to the material handling industry.  It was with this background that Syntron® saw the need to develop a valve that could control free-flowing powders and granular materials with a center closing, “iris” type orifice.  The first model engineered was the FV Series. The SFV/DFV series was subsequently designed in the mid 1960’s.

Lorenz Conveying Products USA took over the company in 2018 continuing to manufacture high quality Syntron® Iris Valves.


Iris Valves are used in diverse markets including aggregates, agriculture, chemical, food, minerals, pharmaceuticals and plastics.