Sanitary Powder Butterfly Valve
KINGMAN supplies sanitary powder butterfly valves specially designed for powder & granule conveying and silo discharging, with manual operation. The handle drives the valve disc to rotate 90° to realize pipeline shut-off and discharge flow regulation. Featuring a short smooth bore and optimized anti-powder-residue structure, the valve resolves common problems of standard butterfly valves such as material clogging, powder trapping and dust leakage. Constructed entirely from stainless steel, it delivers excellent wear and erosion resistance, suitable for clean workshops and compatible with CIP cleaning. It is widely used for silo discharge and powder conveying pipelines in food, pharmaceutical, health supplement and lithium battery powder industries.
Specifications
| Parameter | Value |
|---|---|
| Product Type | Sanitary Powder Butterfly Valve |
| Size Range | 4”-12” ,DN100 to DN300 |
| Body & Disc Material | 304 / 316L stainless steel |
| Seal Material | Silicone,EPDM,FKM,Buna FDA approved |
| Working Temperature | -20~130 ℃ (up to Seat Seal) |
| Max. Working Pressure | ≤16bar (232psi) |
| Min. Working Pressure | 0.2bar (2.9psi) |
| Connection Standard | 3A / SMS / DIN |
| Connection Type | Butt Weld, Tri Clamp, Flanged |
| Operation Type | Manual handle / Pneumatic actuator |
| Application | Powder, Particle, Capsule |
| Certification | ISO 9001, 3A,CE,EAC,health wading license |
Dimensions
3A / ISO Standard
| Material Code | Spec | A | B | C | D |
|---|---|---|---|---|---|
| DN100 | 100 | 104 | 56 | 155 | |
| DN150 | 150 | 154 | 70 | 230 | |
| DN200 | 200 | 206 | 75 | 280 | |
| DN250 | 247 | 254 | 80 | 327 | |
| DN300 | 298 | 304.8 | 90 | 380 |
Features
- Tank-bottom dedicated clamp-on quick-release valve body. The whole valve can be rapidly detached from silo outlet for direct cavity cleaning, no pipeline disassembly required.
- Centre-sealed full bore design without flow reduction. Smooth passage for powder & granules, minimizing material retention and preventing powder bridging and blockage.
- Integrated long bent stainless steel lever. Extended curved handle fits confined space at silo bottom, delivering effortless operation and keeping hands away from dust zone.
- Dust-proof sealing assembly on valve stem. Multi-layer packing stops fine powder entering stem gap, prevents dust leakage and avoids stem sticking or jamming.
- Mirror polished inner bore with no powder-trapping recesses. Smooth surface reduces powder adhesion, supports CIP cleaning and meets hygienic requirements for food & pharma.
- Fully stainless steel construction. Body, disc and lever available in SS304 / SS316L, excellent wear resistance against long-term powder scouring.
Working Principle
Rotating the bent lever handle turns the valve stem and drives the disc to rotate 90° inside the valve body. When the disc presses against the seat, material flow is shut off. When the disc opens, powder and granular materials flow downward from the silo through the straight full bore. Operators control the opening degree manually to switch discharge on/off and regulate flow rate. The dust-proof stem seal prevents fine powder from entering the moving clearance to keep stable long-term operation.
Why Choose KINGMAN
Powder-Service Customization
Powder butterfly valve dimensions, connection formats and material choices can be reviewed around hopper, tank-bottom and dry-product handling requirements instead of relying on one standard configuration.
Hygienic Finish Control
Mechanical polishing to Ra ≤ 0.51 μm and electropolishing to Ra ≤ 0.38 μm are available where sanitary powder handling requires cleaner stainless steel surfaces.
Sample-to-Volume Path
Buyers can begin with samples or smaller trial quantities, confirm fit and operation, then move the approved powder butterfly valve specification into repeat or bulk purchasing.
