Gate Valves Knife gate
Bi-directional Self-Sealing Knife Gate Valve, DN50-800, PN10
Bi-directional self-sealing flanged knife gate valve in ductile iron.
Quick Specifications
- Type
- Knife gate valve
- Series
- QW Series
- Seal Direction
- Bi-directional
- Configuration
- Flanged, self-sealing
- Connection
- Flanged
- Operation
- Manual, pneumatic, electric, gear
Product Details
A bi-directional self-sealing knife gate valve in ductile iron (GGG40) body for slurry, pulp, sludge and wastewater service. Available in manual and pneumatic configurations.
Specifications
| Parameter | Value |
|---|---|
| Model / Series | QWZ73NR |
| Product Family | Knife Gate Valve |
| Catalog Name | Bi-directional Self-Sealing Knife Gate Valve |
| Size Range | DN50 - DN800 |
| Pressure Rating | PN10 (measured 1.6 - 0.3 MPa) |
| Body / Main Material | GGG40 (ductile iron) |
| Seat / Seal Material | Gate SS304; Stem 2Cr13; Yoke Q235 |
| End Connection | Flanged (wafer-style body with bolt holes) |
| Actuation | Handwheel, pneumatic, gear, electric |
| Typical Application | Slurry, pulp, sludge, mining and wastewater applications |
FAQ
What should be confirmed before ordering?
Confirm the model, DN size, body/gate material, seat material, pressure class, flange standard, medium and actuator option against the selected catalog drawing.
Does one series cover all materials and sizes?
No. Materials, dimensions and pressure limits depend on the exact model suffix and DN size shown in the catalog material and dimension tables.
Can an actuator be supplied?
Manual, pneumatic, electric and other actuation options are catalog-dependent. Confirm the actuator type, control mode and mounting details for the final valve selection.
Which documents should be requested?
Request the current dimensional drawing, material list, inspection requirement and final technical confirmation for the selected model and size.
Need This Product for Your Project?
Send us your required size, material, pressure rating, quantity or applicable standard, and our team will review your requirement.
