| Application | General | Place of Origin | Shenzhen, China |
|---|---|---|---|
| Power | Manual | Customized support | OEM, ODM, OBM |
| Warranty | 3 years | Model Number | gate valve |
| Temperature of Media | High Temperature, Low Temperature, Medium Temperature, Normal Temperature | Brand Name | EATHU |
| Media | Water | Standard or Nonstandard | Standard |
| Name | knife gate valve | Standard | AWWA,DIN3352,BS5163,BS5150 |
| Body material | Cast iron, Ductile iron, stainless steel | Stem | Rising, Non rising |
| Seal | Metal or resilient | Pressure | PN10/16/25, Class125/150 |
| Surface | Expoxy coating | face to face | DIN3202 F4/F5, ANSI B16.1,BS EN558-1 |
| Test | EN 12266-1:2003 |
1. Introduction
The WCB Stainless Steel A216 Cast Steel Knife Gate Valve is designed for reliable performance in industrial applications where durability and resistance to wear are essential. This valve is suitable for handling various types of media, including slurries, viscous fluids, and corrosive substances, making it ideal for industries such as mining, wastewater treatment, and chemical processing.
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: Suitable 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, or higher |
| 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 | 1.0 MPa (PN10) or higher |
| 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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