Bi-Directional Slurry Knife Gate Valve
This bi-directional knife gate valve is also known as a slurry gate valve. The disc bottom is made with a blade shape to cut soft materials like fiber, pulp, or wood pulp, while also providing secure closure.
Technical Specifications
Overview
High-Performance Bi-Directional Sealing
This Bi-Directional Slurry Knife Gate Valve is engineered for zero-leakage performance under high differential pressure. Its full-bore design ensures maximum flow capacity with minimal pressure drop, while the integrated body structure provides exceptional durability. Designed specifically to prevent media accumulation, it is an ideal solution for demanding industrial slurry and wastewater applications.
Key Performance Metrics
Technical Highlights
200 ℃
Max Temperature
1,200 mm
Max DN Size
48 in
Max NPS Size
Technical Specifications
Connection Type
Wafer
- Size Range
- NPS 2 to NPS 48 (DN50 to DN1200)
- Pressure Ratings
- Class 150PN6PN10
Materials
Construction Materials
| Component | Material |
|---|---|
| Body | Ductile Iron |
| Disc | Stainless Steel |
| Sealing | Rubber, PTFE |
| Seat | Wire Reinforced Elastomer |
Design Features
Advanced Design Features
- Bi-directional zero leakage shutoff
- Full port flow path for minimal pressure drop
- No-groove seat design prevents media accumulation
- U-shaped resilient seat reduces gate friction
- Integrated precision casing body structure
- Replaceable flexible wire reinforced seat
Operation & Standards
Compliance & Testing
| Standard Category | Reference |
|---|---|
| Pressure Test | GB/T13927, API598 |
| Face to Face | GB/T12221, API609 |
| Valve Body | GB/T12224, ASME B16.34 |
- Operating Modes
- Hand WheelBevel GearPneumaticElectricHydraulic
Applications
Target Industries
- Mining & Coal Washing (slurry pipes, ash discharge)
- Iron & Steel Industry
- Water Treatment & Purification (sewage, mud, suspended solids)
- Paper & Pulp Industry (all pulp concentrations)
