Manual gate valve

 Features

• Simple Design: The manual gate valve has a straightforward construction, making it easy to operate and maintain.
• Compact Structure: Its compact design allows for installation in tight spaces within various piping systems.
• Fluid Compatibility: Suitable for a range of fluids, including water, gases, and oils.
• Sealing Performance: Offers excellent sealing capabilities to prevent leaks.
• Pressure Resistance: Designed to withstand high pressure, ensuring reliable performance in demanding applications.
• Frequent Use: Ideal for applications that require regular opening and closing or flow regulation.

Application

A manual gate valve can be applied in various industries and scenarios, including:

1. Water Supply Systems: Used to control the flow of drinking water in municipal water distribution networks.
2. Oil and Gas Industry: Employed in pipelines to manage the flow of crude oil, natural gas, and refined products.
3. Chemical Processing: Utilized in chemical plants to regulate the flow of corrosive or hazardous fluids.
4. Power Generation: Found in power plants for cooling water systems and steam lines.
5. HVAC Systems: Used in heating and cooling systems to control the flow of water or refrigerants.
6. Irrigation Systems: Applied in agricultural settings to manage water flow to fields and crops.
7. Fire Protection Systems: Installed in fire sprinkler systems to control water flow during emergencies.
8. Wastewater Treatment: Used to regulate the flow of wastewater through treatment facilities.

Main performance parameters

How to maintain a manual gate valve ?

There are significant differences in maintenance between manual and electric gate valves. Manual gate valves have advantages in simplicity, cost-effectiveness, and emergency operation.

Here are some key maintenance practices:

1. Regular Inspection

• Visual Checks: Look for signs of leaks, rust, or corrosion on the valve body and connections.
• Operation Test: Manually operate the valve periodically to ensure it opens and closes smoothly.

2. Lubrication

• Threaded Components: Apply lubricant to the valve stem and threads to reduce friction and prevent wear.
• Check Seals: Inspect and lubricate seals if applicable, ensuring they remain pliable and effective.

3. Cleaning

• Remove Debris: Clean the valve exterior to prevent buildup of dirt and contaminants.
• Flush Internally: Periodically flush the valve with a suitable fluid to remove any sediment or buildup inside.

4. Tightening Bolts and Connections

• Check Fasteners: Ensure all bolts and connections are tight to prevent leaks and maintain structural integrity.

5. Replacement of Worn Parts

• Inspect Wedges and Seals: Check the gate and seals for wear; replace them if damaged or worn out.
• Schedule Replacements: Plan for regular replacement intervals based on usage and manufacturer recommendations.

6. Operating Procedures

• Avoid Over-Torquing: Do not force the valve beyond its design limits, as this can cause damage.
• Proper Use: Ensure that the valve is used correctly within its specified parameters (temperature, pressure, and fluid type).

7. Documentation

• Maintenance Records: Keep detailed records of inspections, repairs, and replacements to track the valve’s condition over time.