Basic Info.
| Material | Cast Iron | Connection Form | Flange |
|---|---|---|---|
| Pressure | Ordinary Pressure | Actuator | Manual |
| Seal Surface | Parallel Gate Valve | Thread Position of Valve Rod | Outside Gate Valve |
| Usage | Flow Control | Standard | DIN |
| Application | Industrial Usage, Water Industrial Usage | Product Name | Cast Iron Lug Knife Gate Valve |
| Transport Package | Wooden Cases | Specification | dn50-dn600 |
| Trademark | qif | Origin | China |
| HS Code | 8481804090 | Production Capacity | 50000pieces/Month |
Product Overview
This valve features a pneumatic actuator for efficient automation, designed for uni-directional flow with a robust ductile iron coating for enhanced durability.
Features
- Pneumatically operated with double acting actuator
- Ductile iron body with protective coating
- Uni-directional flow design
- Suitable for handling various fluids and slurries
Technical Specifications
| Parameter | Specification |
|---|---|
| Valve Type | Knife Gate Valve |
| Body Material | Ductile Iron with Coating |
| Operation | Pneumatic, Double Acting |
| Connection Type | Flanged |
| Pressure Rating | PN10/16 |
| Temperature Range | -20°C to 120°C (-4°F to 248°F) |
| Size | As specified |
| Seal Material | Reinforced Rubber or Metal |
| Leakage Rate | Minimal leakage |
Installation Instructions
Preparation: Ensure the pipeline is clean and free from debris. Verify flange compatibility.
Mounting: Align the valve with the pipeline flanges. Use appropriate gaskets and bolts to secure the valve. Tighten bolts in a criss-cross pattern for even pressure distribution.
Pneumatic Connection: Connect the pneumatic actuator to the air supply according to the manufacturer's specifications. Ensure all connections are secure and leak-free.
Inspection: Test the actuator to ensure smooth operation and check for any obstructions in the valve.
Operation Guidelines
- Opening/Closing: Use the control system to operate the pneumatic actuator for opening and closing the valve.
- Flow Control: Ensure the valve is fully open or closed to prevent partial obstruction and ensure optimal flow control.
Maintenance
- Regular Inspection: Perform regular inspections for signs of wear or damage. Ensure the actuator and valve components are in good condition.
- Seal Maintenance: Inspect seals periodically and replace if necessary to maintain tight sealing and prevent leakage.
- Cleaning: Keep the valve and actuator clean and free from external contaminants to ensure smooth operation.
Safety Precautions
- Always disconnect the air supply before performing any maintenance or inspection.
- Use appropriate personal protective equipment (PPE) during installation and maintenance.
- Ensure all personnel are trained in valve operation and safety protocols.
Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| Valve does not open/close | Air supply issue or obstruction | Check air supply and clear obstruction |
| Leakage | Worn or damaged seal | Replace the seal |
| Actuator malfunction | Pneumatic fault | Inspect connections and air lines |
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