| Application | General | Place of Origin | China |
|---|---|---|---|
| Power | Manual | Customized support | OEM, ODM |
| Warranty | 1 year | Model Number | PZ73W |
| Temperature of Media | Medium Temperature, Normal Temperature | Brand Name | DKV |
| Media | Water | Connection | flange |
| Medium | Water Oil Gas | Body material | SS304/WCB |
| Pressure | 1.0~1.6MPa | Working Temperature | 0°C to 80°C NBR, 150°C Metal |
| Seal Material | Stainless Steel+STL;EPDM (120°C) /Viton(200°C)/PTFE(200°C) /NBR(90°C) |
1. Introduction
The Stainless Steel Manual Handle Wheel Knife Gate Valve is designed for durability and efficient performance in handling various media, especially in challenging environments. This valve features a manual handle wheel for easy operation, a PN10 flanged connection for secure installation, and is constructed from high-quality stainless steel, cast iron, or cast steel (WCB) to meet diverse application needs.
2. Features
- Material Options:
- Stainless Steel (SS304/SS316)
- Cast Iron
- Cast Steel (WCB)
- Design: Knife gate design to cut through thick and abrasive media, ensuring smooth flow and minimal clogging.
- Seal: Resilient seal providing tight closure and preventing leakage.
- Actuation: Manual operation with a handle wheel.
- Connection: PN10 flanged ends for easy installation and secure connection.
- Pressure Rating: Suitable for medium pressure applications (PN10).
3. Applications
- Mining industry.
- Wastewater treatment plants.
- Pulp and paper industry.
- Chemical processing.
- Power generation.
4. Technical Specifications
| Parameter | Specification |
|---|---|
| Valve Size | Various sizes available |
| Body Material | Stainless Steel, Cast Iron, Cast Steel (WCB) |
| Gate Material | Stainless Steel (SS304/SS316) |
| Seal Material | Resilient (EPDM, NBR, etc.) |
| Pressure Rating | PN10 |
| Temperature Range | -10°C to 200°C (14°F to 392°F) |
| Connection Type | Flanged (PN10) |
| Face-to-Face Dimension | According to ISO 5752 |
| Media | Slurry, abrasive and viscous fluids |
| Operating Pressure | 1.0 MPa (PN10) |
| Actuation | Manual (Handle Wheel) |
| Leakage Rate | Zero leakage (resilient seal) |
| Testing Standard | API 598 |
5. Installation Instructions
- Preparation: Ensure the pipeline is clean and free of debris.
- Alignment: Align the valve with the pipeline flanges.
- Bolting: Secure the valve using appropriate bolts and nuts, ensuring even tightening.
- Handle Wheel Operation: Ensure the handle wheel is properly attached and operates smoothly.
- Testing: Test the valve for proper operation and check for leaks.
6. Maintenance
- Regular Inspection: Periodically inspect the valve for signs of wear or damage.
- Seal Replacement: Replace the seals if leakage is detected.
- Stem Maintenance: Ensure the stem operates smoothly and is free from debris.
- Gate Inspection: Inspect the gate for wear and replace if necessary.
7. Safety Precautions
- Ensure the pipeline is depressurized before performing any maintenance.
- Use appropriate personal protective equipment (PPE) when handling the valve.
- Follow all relevant safety standards and guidelines.
8. Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| Valve does not open/close | Obstruction in the gate area | Inspect and clean the gate area |
| Leakage through the seal | Worn or damaged seal | Replace the seal |
| Difficulty in manual operation | Debris or damage in the stem or gate | Clean and inspect the stem and gate |
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