| Application | General | Place of Origin | Shenzhen, China |
|---|---|---|---|
| Power | Electric | Customized support | OEM |
| Warranty | 12 months | Model Number | HGZK |
| Temperature of Media | Normal Temperature | Brand Name | HGZK |
| Media | Dust | Product name | Electric Sliding Gate Valve |
| connection | lug, flange | Body material | WCB/CF8/CF8M |
| Working pressure | 1.0 MPa |
1. Introduction
The PZ973 Electric Knife Gate Valve is engineered for precise and automated control of fluid flow in sewage and slurry applications. This valve features a robust knife gate design and an electric actuator for efficient and reliable operation. It is specifically designed to handle abrasive, viscous, and particulate-laden fluids commonly found in sewage and slurry systems.
2. Features
- Material: Stainless Steel body and gate (SS304/SS316) or other corrosion-resistant materials.
- Design: Knife gate design to handle slurry, viscous, and abrasive fluids.
- Seal: Resilient or metal-to-metal seal options for tight closure.
- Actuation: Electric actuator for automated operation.
- Connection: Flanged, wafer, or lugged ends for versatile installation.
- Pressure Rating: Typically PN10 or PN16.
- Standards: Manufactured according to industry standards (e.g., ISO, API).
3. Applications
- Sewage treatment plants.
- Mining industry.
- Pulp and paper industry.
- Chemical processing.
- Power generation.
4. Technical Specifications
| Parameter | Specification |
|---|---|
| Valve Size | Various sizes available |
| Body Material | Stainless Steel (SS304/SS316) or other corrosion-resistant materials |
| Gate Material | Stainless Steel (SS304/SS316) |
| Seal Material | Resilient (EPDM, NBR, etc.) or Metal-to-Metal |
| Pressure Rating | PN10, PN16 |
| Temperature Range | -10°C to 200°C (14°F to 392°F) |
| Connection Type | Flanged, Wafer, Lugged |
| Face-to-Face Dimension | According to ISO 5752 or API 609 |
| Media | Sewage, slurry, abrasive and viscous fluids |
| Operating Voltage | Typically 220V/380V AC |
| Actuation | Electric Actuator |
| Leakage Rate | Zero leakage (resilient seal) |
| Testing Standard | API 598 |
5. Installation Instructions
5.1 Preparation
- Ensure the pipeline is clean and free of debris.
- Verify that the valve specifications match the application requirements.
- Check the electric actuator for proper configuration and voltage compatibility.
5.2 Alignment
- Align the valve with the pipeline flanges.
- Ensure proper alignment to avoid stress on the valve body and flanges.
5.3 Bolting
- Secure the valve using appropriate bolts and nuts.
- Tighten bolts evenly in a crisscross pattern to ensure a proper seal.
5.4 Electrical Connection
- Connect the electric actuator to the power supply according to the manufacturer's wiring diagram.
- Ensure all electrical connections are secure and properly insulated.
5.5 Testing
- Test the valve for proper operation using the electric actuator.
- Check for leaks and ensure the valve opens and closes smoothly.
6. Maintenance
6.1 Regular Inspection
- Periodically inspect the valve and actuator for signs of wear or damage.
- Check the gate, seals, and stem for any abnormalities.
6.2 Seal Replacement
- Replace the seals if leakage is detected.
- Use compatible seal materials for the specific media and operating conditions.
6.3 Actuator Maintenance
- Follow the actuator manufacturer's maintenance guidelines.
- Ensure the actuator operates smoothly and is free from debris.
6.4 Gate Inspection
- Inspect the gate for wear and replace if necessary.
- Ensure the gate moves freely without obstruction.
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.
- Ensure all electrical connections are de-energized before maintenance.
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 |
| Actuator not responding | Electrical issue or actuator fault | Check electrical connections and actuator status |
| Difficulty in manual operation | Debris or damage in the stem or gate | Clean and inspect the stem and gate |
Product Show
The movement direction of the gate is perpendicular to the fluid direction. It relies on a knife-edge gate to cut off the medium, capable of cutting fibrous materials.
The electric knife gate valve is driven by an electric actuator to move the gate up or down, thus controlling the valve's opening and closing. With the addition of sensors or digital display devices, remote computerized automatic control can be achieved. This type of valve is suitable for pipelines containing suspended particles, fibrous materials, such as pulp, sewage, coal slurry, ash slurry, cement mixtures, and other media.
