Valves
Butterfly Valve
CYprocess butterfly valves — also called disc valves or wafer dampers — isolate powder at silo, hopper and conveying line outlets, and regulate air or dust-laden gas in ventilation ducts. Manual, pneumatic and electric actuation is available in wafer or flanged patterns.
Shanghai-built. Drawings come with the quotation, and material certificates are available on request. Factory and documents
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Overview
About Butterfly Valve
How this equipment works in powder handling lines and what to consider when selecting it.
Powder isolation
Powder-duty butterflies give on-off isolation at hopper, silo and vessel outlets. The disc closes against a seat matched to the product, and food-grade or industrial seals are chosen according to the cleaning standard. Compact wafer construction keeps the installed height to a minimum.
Ventilation and duct duty
Ventilation butterflies regulate air and dust-laden gas in metallurgy, building-material, chemical and power ducts. Nominal pressure is typically at or below 0.05 MPa over a 0-90° rotation, with leakage around 3% on standard builds and about 1% on high-seal designs. Temperature grades cover elevated flue-gas duty.
Where it fits in the process
Features
Key Features
Design points that make the Butterfly Valve practical for industrial powder plants.
Specifications
Typical Specifications
Final sizing depends on material properties, capacity and plant layout. Request a project review for a tailored proposal.
| Types | Powder isolation · Ventilation / duct butterfly |
|---|---|
| Actuation | Manual / pneumatic / electric (AC 220 or 380 V) |
| Rotation | 0 - 90° |
| Duct pressure | Typically ≤ 0.05 MPa on ventilation duty |
| Leakage | Standard ≤ about 3%; high-seal ≤ about 1% |
| Temperature | Ambient to about 300 - 600 °C, grade dependent |
| Mounting | Wafer / flange on hoppers, pipes and ducts |
Materials
Suitable Materials
Powder and granule categories typically specified with a butterfly valve. Suitability is confirmed per project from bulk density, particle size, moisture and process conditions.
Chemical powders
pigments, resins, fine chemicals
Food powders
flour, starch, sugar, milk powder
Minerals & cement
cement, limestone, quartz, fly ash
Plastics & granules
granules, masterbatch, compounds
Combustion gas & dust
flue gas, smoke, dust-laden air
Not sure whether your material will convey? Send us a sample description and we will confirm before quotation.
Industries
Industries Served
Sectors where butterfly valve units are specified today.
Project experience
Where this equipment is running
Selected projects that include butterfly valve.
Applications
Process Applications
Process points where this equipment is typically installed, from bulk intake through to packing.
Downloads
Catalogs & Datasheets
Technical documents related to this product and our powder handling range.
FAQ
Butterfly Valve FAQ
Common questions about selection, integration and quotation.
Powder-duty valves isolate product at hopper, silo and line outlets, so the seat and disc are chosen for the material and the cleaning standard. Ventilation valves regulate air and dust-laden gas in ducts at low differential pressure, where sealing and temperature rating dominate instead.
System partners
Related Products
Equipment commonly paired with Butterfly Valve in complete powder handling lines.
Engineering support
Enquire about Butterfly Valve
Share your material, capacity and plant layout. Our engineers will confirm sizing and send a tailored proposal.