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Rotary Valve
The prime function of a rotary airlock valve is to regulate the flow from one chamber to another while maintaining a good airlock condition. The product is mainly in dry powder or granular form.
In the dust filtration field a good airlock is essential on cyclone and bag filter applications in order that the manufacturers quoted high dust collection efficiencies can be maintained. Airlocks are also important in the pneumatic conveying industry, where product is regulated into a pressure or vacuum conveying line while minimising air leakage.
Typical Applications
- Gravity discharge of dust collectors, gravity discharge of cyclone dust collectors, provide airlock, control rate feeders for dilute phase and continuous dense phase pneumatic convey systems.
- Handling products from feeding non-abrasive products by gravity to extremely abrasive products.
- The handling products in dry powders and granular materials, such as sugar, cocoa, starch, flour, chemical ingredients, lime powder, china clay, fly ash and wood chips.
Medium duty rotary airlocks have been specially designed to offer a suitable and economic solution for standard applications with a limited pressure differential. These valves are used for example in dosing and/or discharging of non-abrasive materials in pneumatic conveying systems or mounted below silos/hoppers for abrasive or mildly cohesive products.
High-Duty rotary valves are employed in the conveying and dosing of almost any kind of product in the most demanding applications. These valves are eminently suitable for handling powdered and granulated materials in pneumatic conveying systems and under atmospheric conditions.
The Easy Clean Rotary Valve with its new pullout mechanism offers a high degree of operator safety and gives considerable flexibility in cleaning and maintaining the equipment during operation. The unit has an easily detachable rotor which can be removed by the quick clamps after disconnecting the electrical supply within a few minutes to enable inspection and cleaning. In addition we offer an automatic cut off switch to disconnect the power supply of the rotary valve. The Rotary valve is made with a high quality standard and can thus be installed in dust collection systems. Consequently the use of second rotary valve in the line is not necessary. For special applications the rotary valve with its easy opening system is also available in ATEX-certified (guideline 94/9/EG) version, in carbon and stainless steel. This type of rotary valve is designed according to the guideline 2006/42/EG.