Thick Viscous Liquids Valves

Concentrated viscous liquids such as heavy oils, greases, syrups, and other gluten-free environments cannot be controlled with standard or generalized solenoid valves, as these solenoids do not work with fluids over 40 or 50 CST (Centistokes), ie air. Water, light oils, etc. For concentrated liquids, you need a more specialized coaxial valve or more specialized fan seat piston valves that can withstand concentrated liquids of up to 500 or 600 centistocks.

Basically, standard solenoid valves have thin flexible diaphragms with pilot holes that close easily, even using a direct solenoid valve can cause operational problems.

There are 2 main solutions depending on the operating conditions and the availability of compressed air. Basically, if you have a compressed air line, it can be used to control the angled seat piston valve and coaxial valves.