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| Do you have a solenoid valve for dirty water with some debris? |
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| No, but…! Solenoid valves are designed for liquid without debris. Internally, they operate with close tolerances and often have small internal ports for pilot operated actuation. Likewise, motorized ball and butterfly valves are not recommended for this kind of service. The answer is to use a diaphragm valve, which is recommended for aggressive liquids and light slurries. |
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| Electric powered diaphragm valves are available, but are very expensive and have very slow open/close times. The most economical solution for making a diaphragm valve operate like a solenoid valve is to utilize a pneumatic actuator. Don’t have a source of air? For less than $250 you can buy a high quality tank mounted air compressor that can serve as a central air system for powering any number of pneumatic valves. The total cost of a diaphragm valve with pneumatic actuator, control valve and compressor, is surprisingly low relative to the alternatives that are available. |
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