Slurry Knife Gate Valve
A heavy-duty knife gate valve engineered for bi-directional isolation of abrasive slurries in mineral processing.
Applications
- Mining
- Mineral Processing
- Tailings
- Power Utilities
- Cement
Key Specifications
- Size range
- DN50 – DN600 (2" – 24")
- Max working pressure
- 10 bar (145 psi)
- Flange standard
- ANSI B16.5 / SANS 1123
- Temperature range
- -10 °C to +80 °C
- End connection
- Wafer / lugged
- Actuation
- Manual, pneumatic or electric
Materials by Component
| Body | Ductile iron / cast steel |
|---|---|
| Gate | 316 stainless steel |
| Seat | Reinforced EPDM / natural rubber |
| Sleeve | Replaceable elastomer sleeve |
| Yoke | Fabricated carbon steel |
| Fasteners | Zinc-plated / stainless steel |
Design Features
- Bi-directional 100% bubble-tight shut-off
- Full-port design reduces pressure drop
- Packingless design minimises maintenance
- Replaceable sleeve extends service life
- Abrasion-resistant elastomers for slurry duty
Certifications & Standards
- ANSI B16.5
- IEC 61508 SIL2/3
- IECEx / ATEX
- ISO 9001
Actuator & Accessory Options
- Pneumatic cylinder with solenoid & limit switches
- Electric multi-turn actuator with position feedback
- Bevel gear / handwheel for manual operation
- Lockable gate position indicator
Dimensional Table
| Size | Face-to-face (mm / in) | Bolt circle (mm / in) | Mass (kg / lb) |
|---|---|---|---|
| DN80 (3") | 65 / 2.56 | 152 / 5.98 | 11 / 24 |
| DN150 (6") | 76 / 2.99 | 241 / 9.49 | 24 / 53 |
| DN200 (8") | 89 / 3.50 | 298 / 11.73 | 38 / 84 |
| DN300 (12") | 114 / 4.49 | 432 / 17.01 | 82 / 181 |
| DN450 (18") | 140 / 5.51 | 578 / 22.76 | 168 / 370 |
Dimensions are indicative sample values for template demonstration only. Confirm against the certified spec sheet for the selected configuration.