Slurry Pumps and Valves
Pinch Valve
Xinhai pinch valves provide shut-off and throttling control for abrasive slurries in mining circuits. A flexible elastomer sleeve is compressed by a mechanical clamp or pneumatic pressure, creating a full-bore, straight-through flow path when open.
Technical parameters
These valves are commonly installed in tailings lines, cyclone feed circuits, flotation plant piping, and other slurry transport systems where particle-laden fluids would quickly wear metal-seated valves.
The model table lists pinch valves by type and dimensions. Different sleeve materials and actuation methods adapt to line size, pressure, and slurry abrasiveness. Match the valve to pipe diameter and control requirement; larger diameters handle higher flow but impose greater pinch force.
| Type | Model | Dimensions (mm) | ||
|---|---|---|---|---|
| A | B | C | ||
| Electric | XGFD50 | 540 | 430 | 476 |
| XGFD80 | 600 | 460 | 498 | |
| XGFD100 | 661 | 480 | 511 | |
| XGFD125 | 824 | 527 | 638 | |
| XGFD150 | 907 | 640 | 783 | |
| XGFD200 | 1248 | 783 | 866 | |
| XGFD250 | 1307 | 783 | 866 | |
| Pneumatic | XGFQ50 | 520 | 176 | 180 |
| XGFQ80 | 664 | 205 | 245 | |
| XGFQ100 | 776 | 234 | 284 | |
| XGFQ125 | 913 | 375 | 350 | |
| XGFQ150 | 907 | 310 | 390 | |
| XGFQ200 | 1303 | 404 | 500 | |
| XGFQ250 | 1523 | 542 | 600 |
Standard-model catalogue figures. Actual capacity, power draw and wear life shift with ore properties, feed gradation and circuit conditions. Use them to shortlist, then confirm the duty by testwork, flowsheet calculation and a written confirmation from the manufacturer.
What decides the selection
Before selecting a pinch valve, define the slurry characteristics: particle size distribution, solids concentration, pH, and temperature. Confirm line pressure, required Cv, and whether on-off, throttling, or isolation service is needed. The sleeve material must be compatible with the slurry chemistry to avoid premature degradation.
- Design flow and head
- Slurry density and particle size
- Abrasiveness and corrosiveness
- Net positive suction head
- Pipeline resistance
- Sealing arrangement
- Wetted part material
- Speed control method
Other pumps and valves machines
- Wear-Resistant Rubber Slurry Pump14 models
- Foam Pump5 models
- High-Head Wear-Resistant Rubber Slurry Pump13 models
- Submersible Pump12 models
- Gapless Gate Valve25 models
- Three-Way Reversing Valve11 models
ISO 9001 / ISO 14001 / ISO 45001 / ISO 9712 / CE / CSA W47.1 / CNAS accredited laboratory
Send the duty, get a sized proposal
Tell us the ore, the throughput and the target product. Our process engineers come back with a flowsheet position, a model shortlist and the testwork we would need to confirm it.