
Stainless Steel Rotary Airlock Valve Manufacturer
Product Visuals & Application Scenes
High-contrast industrial presentation aligned with the FUWEI homepage style.
Why choose this model
Stable discharge: continuous and quantitative powder or granular material feeding.
Airlock performance: designed for silo unloading, dust collection and conveying lines.
Custom material: stainless steel with sealing and surface treatment options.
Typical applications
Cement and building materials
Chemical powder and new materials
Grain, feed and food processing
Dust collection and silo discharge
Positive pressure or gravity conveying systems
Selection parameter table
ZGF parameter table
| Model | Volume/rotation | A | B | C | L | H | D1 | D2 | D3 | b1 | b2 | h | M | N | S | F | d | Hole |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2.8L | 2.8L/r | 165 | 120 | 190 | 180 | 140 | 120 | 190 | 160 | 620 | 260 | 360 | 120 | 150 | 315 | 45 | 25 | 4-phi9 |
| 5L | 5L/r | 190 | 140 | 220 | 210 | 160 | 150 | 220 | 190 | 650 | 300 | 400 | 140 | 180 | 345 | 45 | 25 | 4-phi9 |
| 7L | 7L/r | 255 | 160 | 250 | 230 | 175 | 170 | 240 | 210 | 710 | 330 | 430 | 175 | 200 | 365 | 45 | 25 | 4-phi9 |
| 9L | 9L/r | 250 | 190 | 275 | 255 | 190 | 190 | 260 | 235 | 740 | 360 | 460 | 200 | 220 | 385 | 45 | 25 | 4-phi9 |
| 12L | 12L/r | 275 | 210 | 310 | 275 | 205 | 210 | 270 | 255 | 780 | 380 | 510 | 220 | 240 | 410 | 45 | 25 | 6-phi11 |
| 16L | 16L/r | 310 | 250 | 340 | 320 | 225 | 250 | 320 | 300 | 840 | 410 | 550 | 260 | 280 | 430 | 45 | 25 | 6-phi11 |
| 25L | 25L/r | 345 | 270 | 390 | 320 | 225 | 240 | 320 | 280 | 860 | 410 | 550 | 260 | 260 | - | - | - | 6-phi11 |
Dimensions are restored from the catalog image; final flange and hole pattern can be confirmed by project drawing.
GF parameter table
| Model | Volume/rotation | A | B | C | L | H | D1 | D2 | D3 | b1 | b2 | h | M | N | S | F | d | Hole |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6L | 6L/r | 165 | 120 | 190 | 180 | 140 | 120 | 190 | 160 | 620 | 260 | 360 | 120 | 150 | 315 | 45 | 25 | 4-phi9 |
| 8L | 8L/r | 190 | 140 | 220 | 210 | 160 | 150 | 220 | 190 | 650 | 300 | 400 | 140 | 180 | 345 | 45 | 25 | 4-phi9 |
| 10L | 10L/r | 255 | 160 | 250 | 230 | 175 | 170 | 240 | 210 | 710 | 330 | 430 | 175 | 200 | 365 | 45 | 25 | 4-phi9 |
| 12L | 12L/r | 250 | 190 | 275 | 255 | 190 | 190 | 260 | 235 | 740 | 360 | 460 | 200 | 220 | 385 | 45 | 25 | 4-phi9 |
| 16L | 16L/r | 275 | 210 | 310 | 275 | 205 | 210 | 270 | 255 | 780 | 380 | 510 | 220 | 240 | 410 | 45 | 25 | 6-phi11 |
| 24L | 24L/r | 310 | 250 | 340 | 320 | 225 | 250 | 320 | 300 | 840 | 410 | 550 | 260 | 280 | 430 | 45 | 25 | 6-phi11 |
| 25L | 25L/r | 345 | 270 | 390 | 320 | 225 | 240 | 320 | 280 | 860 | 410 | 550 | 260 | 260 | - | - | - | 6-phi11 |
GF series follows the catalog dimension structure with different per-turn volume range.
Selection information to confirm
Material name, particle size, bulk density, moisture and temperature.
Required capacity, pressure difference, conveying method and installation direction.
Body material, seal material, flange standard, actuator type and control requirement.
Special requirements such as wear resistance, high temperature, explosion-proof motor or inner coating.
Rotary Valve Solutions by Industry
Explore material-handling requirements and recommended FUWEI rotary valve configurations for your industry.
Send your requirement to FUWEI
Tell us your material, capacity, pressure, temperature and flange standard. Our engineer will help select the suitable model.
Selection & Application FAQ
This stainless steel rotary airlock valve is suitable for clean powder and granule discharge where corrosion resistance, stable sealing and customized dimensions are required.
When should stainless steel be selected?
Choose stainless steel when the material is corrosive, moisture-sensitive, food-related or requires cleaner contact surfaces than cast iron or carbon steel.
What data helps FUWEI confirm the model?
Send capacity, bulk density, particle size, temperature, pressure difference, flange size, motor direction and installation space.
Can the valve be customized?
Yes. FUWEI supports OEM and ODM customization for material, flange, rotor clearance, sealing method, motor power and surface treatment.



























