Dust Butterfly Valve (Pneumatic / Pneumatic Actuated)
Reguvale dust butterfly valve for cement, fly ash, flour, chemical powder and other dry bulk media. Pneumatic actuator with hard-faced sealing, ideal for dust collection systems and pneumatic conveying lines. DN50–DN1200, PN10/PN16. ISO 9001 & SGS certified.
Reguvale dust butterfly valves are designed for dry bulk media — cement, fly ash, flour, plastic pellet, mineral powder, coal dust, and similar granular/powdered materials. The hard-faced metal seat and wear-resistant disc deliver long service life in dust collection systems, pneumatic conveying lines, and silo discharge applications. We supply complete packages: butterfly valve + pneumatic actuator + solenoid valve + positioner + air filter regulator, pre-assembled and tested.
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✓ Hard-Faced Metal Seat
Stellite / alloy overlay seat withstands abrasive powder, dust and particle-laden media with zero leakage at shut-off.
✓ Pneumatic-Ready
Pre-engineered for pneumatic actuator mounting (ISO 5211 top flange). Spring-return or double-acting, field-replaceable.
✓ Dust-Tight Sealing
Designed for dust collectors and pneumatic conveying — prevents leakage of fine particles to atmosphere.
Technical Specifications
| Application | Dust collection, pneumatic conveying, cement, fly ash, flour, chemical powder, coal dust, plastic pellet |
| Body Material | Carbon Steel / Stainless Steel / Ductile Iron |
| Disc (Butter Plate) Material | Stainless Steel 304 / 316 / Duplex / Wear-Resistant Alloy |
| Seat / Sealing | Metal-to-Metal Hard Seal / PTFE / EPDM optional |
| Size Range | DN50 – DN1200 (2" – 48") |
| Pressure Rating | PN10 / PN16 / ANSI 150LB |
| End Connection | Wafer / Lug / Double Flanged |
| Operation | Pneumatic (Double-Acting / Spring-Return) / Manual Lever / Gearbox |
| Actuator | AT / AW series pneumatic cylinder, optional solenoid valve + limit switch + positioner + air filter regulator |
| Temperature | Metal seat: -20→+450°C | PTFE: -20→+180°C | EPDM: -20→+120°C |
| Leakage Class | Class VI (Metal hard seal: Class IV) |
| Certification | ISO 9001:2015, SGS Material Test Certificate |
| MOQ | 1 Piece |
Frequently Asked Questions
What is a dust butterfly valve and where is it used?
A dust butterfly valve is a hard-seated butterfly valve designed for dry bulk media — cement, fly ash, flour, plastic pellets, coal dust, mineral powder and similar granular/powdered materials. It is widely used in dust collection systems (baghouse / cyclone), pneumatic conveying lines, silo discharge, and bulk material handling.
Do you supply the pneumatic actuator and accessories?
Yes. Reguvale supplies the complete assembly: butterfly valve + AT/AW series pneumatic cylinder + 5/2 or 5/3 solenoid valve + limit switches + positioner + air filter regulator + silencer. We pre-assemble, test, and ship as one unit.
Metal seat vs soft seat — which one for dust?
For dust / powder / high-temperature applications, metal-to-metal hard seal is recommended (longer life, higher temperature up to +450°C). Soft seat (PTFE / EPDM) is suitable for clean gas / air isolation at lower temperatures.