Blow-Through Rotary Airlock Valves for Insulation Manufacturing Plants

UGES blow-through rotary airlock valves provide efficient in-line pneumatic conveying for recycled mineral wool fibers, calcium silicate powder, and insulation raw materials. The blow-through design sweeps lightweight fibrous materials from closed pockets, preventing fiber accumulation and ensuring reliable continuous feeding.

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Blow-Through Rotary Airlock Valves Key Specifications

Rotor Design

Closed-pocket blow-through rotor with 6 deep-pocket blades and tangential air injection for effective purging of low-density fibrous insulation materials.

Housing Material

Carbon steel housing with epoxy-coated internals and integrated blow-through manifold, resistant to phenolic resin binder chemicals in mineral wool lines.

Inlet Size Range

200mm to 450mm oversized inlet flanges with blow-through air ports sized for the high air volume needed to convey lightweight insulation fibers.

Pressure Rating

Conveying air pressure up to 0.5 bar, optimized for the low-pressure dilute-phase pneumatic conveying typical in insulation material handling systems.

Temperature Range

Standard operation from ambient to 120°C, suitable for handling warm recycled fibers from curing oven trim recovery and dust collection systems.

Blade Configuration

6-blade closed-pocket rotor with chamfered entry edges and UHMWPE blade tips to prevent fiber wrapping and ensure complete pocket purging during blow-through.

Industrial Applications

Recycled Fiber Pneumatic Return
Conveys shredded mineral wool trimmings directly into pneumatic return lines using blow-through air, eliminating separate screw feeders in the recycling circuit.
Calcium Silicate Powder Feed
Injects fine calcium silicate powder from mixers into pneumatic conveying lines feeding forming stations, providing combined airlock and metering functions.
Insulation Dust Collection Conveying
Feeds captured insulation dust from bag filter hoppers directly into pneumatic transport lines for recycling, with blow-through purging to prevent fiber bridging.

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