Find new and used industrial rotary valves for sale with The Commercial Trader. Whether you’re feeding bulk powders into a pneumatic conveying line, isolating a hopper from a dust collection system, metering granular materials into a process, or maintaining pressure differential across a discharge point, we connect you directly with trusted UK and European sellers offering rotary valves for every bulk handling duty.
Browse new and used rotary valves across every major format.
Each listing comes from verified sellers with detailed specifications and service history available where applicable. Need help specifying a rotary valve for your application? Get in touch via our contact page for guidance, or browse the related categories below.
Industrial Machinery Categories
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An industrial rotary valve (also called a rotary airlock or rotary feeder) is a piece of bulk material handling equipment that meters powders, granules and bulk solids while maintaining a pressure seal between two zones. The valve consists of a rotor with multiple pockets turning inside a fixed housing, with material entering from above, being captured in a pocket, rotated to the discharge port, and dropped out below. The rotor’s tight clearance to the housing creates an airlock that prevents pressurised gas from passing through the valve while still allowing solids to flow. Rotary valves are typically specified by throat size, rotor speed, pocket volume, materials of construction and the pressure differential they need to handle.
Quality industrial rotary valves routinely operate for 15-25+ years. The cast iron or stainless steel housings last decades; rotor blades are wear items that may need refurbishment or replacement every 3-10 years depending on duty (highly abrasive products like cement and silica drive faster wear; food powders and gentle materials cause minimal wear). Bearings and seals are routine maintenance items.
Rotary valves are fundamental to virtually every bulk handling process that involves moving powders or granules between pressure zones.
Rotary valves are excellent candidates for second-hand purchase because the housings and main components last for decades.
The most common rotary valve configuration. Material drops vertically through the valve from inlet to outlet, with the rotor metering flow and providing the pressure seal. Standard for hopper discharge, pneumatic conveying feed and dust collection isolation. Manufacturers include DMN-Westinghouse, Coperion (Waeschle), Donaldson, Schenck Process and many specialist UK and European builders.
Blow-through valves include an integral pneumatic conveying connection where the conveying air sweeps through the rotor pockets, picking up product as it discharges. Eliminate the need for a separate airlock plus T-piece arrangement, simplifying installations and reducing pressure losses. Common in pneumatic conveying lines.
Heavy-duty designs with reinforced housings, tighter rotor clearances and specialised seals support pressure differentials up to 5+ bar, suitable for higher-pressure pneumatic conveying, dense-phase systems and pressure vessel feed applications.
Stainless steel construction with electropolished surfaces, drainable design and quick-release end covers for cleaning support food, pharmaceutical and dairy applications. 3A and EHEDG-aligned designs are available from specialist manufacturers.
Quick-release rotor designs allow the rotor to be removed for cleaning or product changeover in minutes, supporting multi-product operations and CIP cleaning regimes. Common in food, pharmaceutical and specialty chemical applications.
As a buyer-to-seller marketplace, we feature industrial rotary valves from sellers across the UK and beyond. Use our location and distance filters to find equipment near your facility, supporting site visits and easier inspection.
As we operate as a buyer-to-seller marketplace, any returns policy must be agreed directly with the seller before purchase. We’d recommend pre-purchase inspection of any used rotary valve, including assessment of rotor wear, blade tip clearances, bearing condition and seal status.
This category forms one part of our wider industrial machinery marketplace. Browse the full range of New and Used Industrial Machinery, or jump into a specific sub-category below:
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