| Application | General | Place of Origin | Shenzhen, China |
|---|---|---|---|
| Power | Manual | Customized support | OEM, ODM, OBM |
| Warranty | 1 year | Media | Water, oil, natural gas |
| Product name | API Knife Gate Valve | Body material | WCB |
| Connection | Wafer Connection | Size | 6inch |
| Standard or Nonstandard | Standad | Pressure | 150LB |
| MOQ | 1 | Function | Control Flow Water |
| Certification | API6D,API598CE,ISO9001 | Type | Gate Valves |
1. Introduction
The PZ73H-150LB 6-inch WCB Cast Steel API Wafer Knife Gate Valve is engineered for robust performance in industrial applications where reliable flow control is essential. This valve is constructed from WCB cast steel and designed according to API standards, featuring a wafer-style body for compact installation between flanges.
2. Features
- Material: WCB Cast Steel body for high strength and durability.
- Design: Knife gate design to cut through thick and abrasive media, ensuring smooth flow and minimal clogging.
- Seal: Metal-to-metal or resilient seal options for tight closure and leakage prevention.
- Actuation: Manual operation with a handle wheel or lever.
- Connection: Wafer-style body for installation between flanges.
- Pressure Rating: 150LB (ANSI Class 150).
- Standards: Designed and manufactured according to API standards.
3. Applications
- Mining industry.
- Wastewater treatment plants.
- Pulp and paper industry.
- Chemical processing.
- Power generation.
4. Technical Specifications
| Parameter | Specification |
|---|---|
| Valve Size | 6 inches |
| Body Material | WCB Cast Steel |
| Gate Material | Stainless Steel (SS304/SS316) |
| Seal Material | Metal-to-metal or resilient (EPDM, NBR, etc.) |
| Pressure Rating | 150LB (ANSI Class 150) |
| Temperature Range | -10°C to 200°C (14°F to 392°F) |
| Connection Type | Wafer |
| Face-to-Face Dimension | According to API 609 |
| Media | Slurry, abrasive and viscous fluids |
| Operating Pressure | 150 psi (10.34 bar) |
| Actuation | Manual (Handle Wheel/Lever) |
| 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 between the pipeline flanges.
- Bolting: Secure the valve using appropriate bolts and nuts, ensuring even tightening.
- Handle Wheel/Lever Operation: Ensure the handle wheel or lever 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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