| Application | General | Place of Origin | Shenzhen, China |
|---|---|---|---|
| Power | Manual | Customized support | OEM, ODM, OBM |
| Warranty | 3 years | Model Number | ZH-50 |
| Temperature of Media | High Temperature, Low Temperature, Medium Temperature, Normal Temperature | Brand Name | EVK |
| Media | Oil | Name | ANSI WCB Class150 a216 cast steel wcb 4inch Knife Gate Valve |
| Standard or Nonstandard | Standard | Power: | Manual,Hydraulic, Penumatic Solenid |
| Media: | water,gas,oil,Water,oil,gas | Structure: | Gate |
| Material: | Casting,Stainless steel,cast iron | Process: | Casting |
| Pressure: | Medium Pressure | Brand Name: | EVK |
| Certification | CE,ISO |
1. Introduction
The WCB Stainless Steel A216 Cast Steel Knife Gate Valve is engineered for robust performance in demanding industrial applications. This valve is particularly suitable for handling slurries, viscous fluids, and other challenging media, making it ideal for use in industries such as mining, wastewater treatment, and chemical processing. The valve is available with PN10 and PN16 pressure ratings to accommodate various operational requirements.
2. Features
- Material: WCB (cast carbon steel) body with stainless steel trim for enhanced corrosion resistance.
- 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: Available in manual, pneumatic, or electric actuation options.
- Connection: Flanged ends for easy installation and secure connection.
- Pressure Rating: PN10 and PN16 options for medium to high-pressure applications.
3. Applications
- Mining industry.
- Wastewater treatment plants.
- Pulp and paper industry.
- Chemical processing.
- Power plants.
4. Technical Specifications
| Parameter | Specification |
|---|---|
| Valve Size | Various sizes available |
| Body Material | WCB (A216 Cast Steel) |
| Gate Material | Stainless Steel (SS304/SS316) |
| Seal Material | Resilient (EPDM, NBR, etc.) |
| Pressure Rating | PN10, PN16 |
| Temperature Range | -10°C to 120°C (14°F to 248°F) |
| Connection Type | Flanged |
| Face-to-Face Dimension | According to ISO 5752 |
| Media | Slurry, abrasive and viscous fluids |
| Operating Pressure | PN10: 1.0 MPa, PN16: 1.6 MPa |
| Actuation | Manual, Pneumatic, Electric |
| Air Supply Pressure (Pneumatic) | 0.4 - 0.7 MPa |
| 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.
- Actuation Connection:
- For pneumatic actuators, connect the actuator to the air supply according to the manufacturer’s instructions.
- For electric actuators, ensure proper electrical connections are made.
- Testing: Test the valve for proper operation and check for leaks.
6. Maintenance
- Regular Inspection: Periodically inspect the valve and actuator 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.
- Actuator Maintenance: Follow the actuator manufacturer’s maintenance guidelines.
7. Safety Precautions
- Ensure the air supply or electrical power is disconnected 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 |
| Actuator malfunction | Air supply issue or actuator failure | Check air supply and inspect the actuator (for pneumatic) or check electrical connections (for electric) |
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