| Application | General | Place of Origin | ShenZhen, China |
|---|---|---|---|
| Power | Pneumatic | Customized support | OEM |
| Warranty | 1 year | Model Number | DN250 |
| Temperature of Media | Medium Temperature | Brand Name | GUANYU |
| Media | powder | Standard or Nonstandard | Standard |
| Product name | knife gate valve | Body material | GGG40 |
| Connection | Flange Ends | Standard | DIN2632 |
| Working pressure | PN10 | Seal Material | EPDM |
| Medium | Sewage | Working Temperature | 0-80 |
| Pressure | PN10 |
Product Overview
This rising stem gate valve is designed for water applications, featuring a manual control structure and a clamped connection for easy installation and maintenance. The rising stem design allows for visual indication of valve position.
Features
- Manual control for precise operation
- Rising stem design for position indication
- Clamped connection for easy installation and maintenance
- Suitable for water applications
- Robust and durable construction
Technical Specifications
| Parameter | Specification |
|---|---|
| Valve Type | Rising Stem Gate Valve |
| Body Material | Cast Iron / Ductile Iron / Stainless Steel |
| Operation | Manual Handwheel |
| Connection Type | Clamped |
| Pressure Rating | PN10/16 |
| Temperature Range | -10°C to 80°C (14°F to 176°F) |
| Size Range | DN40 to DN1200 |
| Seal Material | EPDM / NBR |
| Leakage Rate | Minimal leakage |
Installation Instructions
Preparation: Ensure the pipeline is clean and free from debris. Verify the valve size and connection type match the pipeline specifications.
Mounting:
- Position the valve between the pipeline flanges.
- Use appropriate gaskets and clamping bolts to secure the valve.
- Tighten bolts evenly in a criss-cross pattern to ensure a proper seal.
Inspection: Check the valve for any obstructions and ensure the stem operates smoothly.
Operation Guidelines
- Opening/Closing: Rotate the handwheel to raise or lower the gate. Turning the handwheel clockwise will close the valve, and turning it counterclockwise will open the valve.
- Flow Control: Ensure the valve is fully open or closed to prevent partial obstruction and ensure optimal flow control.
- Position Indication: The rising stem provides a visual indication of the valve position. When the stem is fully extended, the valve is open; when it is retracted, the valve is closed.
Maintenance
- Regular Inspection: Perform regular inspections for signs of wear or damage. Ensure the handwheel and stem operate smoothly.
- Seal Maintenance: Inspect seals periodically and replace if necessary to maintain tight sealing and prevent leakage.
- Cleaning: Keep the valve and handwheel clean and free from external contaminants to ensure smooth operation.
Safety Precautions
- Always ensure the pipeline is depressurized before performing any maintenance or inspection.
- Use appropriate personal protective equipment (PPE) during installation and maintenance.
- Ensure all personnel are trained in valve operation and safety protocols.
Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| Valve does not open/close | Obstruction or mechanical issue | Check for obstructions and ensure smooth operation |
| Leakage | Worn or damaged seal | Replace the seal |
| Hard to operate | Mechanical wear or damage | Inspect and lubricate moving parts, replace if necessary |
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