DCL's Rotary throttle valves offer you excellent control over material flow while air gravity (air slide) conveying. The valve uses a rotary parabolic blade that allows for a low-profile design delivering precise flow control. If you need real time infinite positioning, a 4-20mA positions the valve. If real time infinite positioning is not required, DCL uses a three-position positioning package. The middle position can be manually adjusted according to your specific requirements.
You can handle a large variety of materials with rotary throttle valves regardless of their abrasive nature or bulk density. The criteria are particle size, moisture content and temperature. Generally a product should have a particle distribution of 100% through a 20 mesh screen. Moisture content should be below 1% and temperature can not exceed 1200 degrees Fahrenheit [649° C].
DCL can perform a product compatibility test for you to determine the optimum conveying angles and aeration volumes for your application. We’ll need a minimum product amount of 2 cubic feet [0.07 m³] to conduct a proper test.
We offer a large selection of rotary throttle valves from 6 inches [152 mm] wide up to 36 inches [914 mm] wide and conveying capacities up to 1000 cubic feet per minute [28.3 m³/min]. Rotary throttle valves are also available in a high-top or low-top design allowing for maximum flow rate or minimum head room depending on your specific application.
A choice of construction materials allows you to effectively handle all types of products – fine, abrasive and corrosive – and difficult dusty or sanitary applications. You can also choose from the electrical options that are best suited for your environment: NEMA 4, NEMA 4X, NEMA 7, NEMA 9, 120V/220V control, 460V/415V power, etc.
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