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English Views: 22 Author: Site Editor Publish Time: 2025-11-21 Origin: Site
- Practical Technical Guidance for Industrial Automation Users
Electric flanged ball valves play a critical role in modern automated flow control systems. To ensure stable and long-lasting performance, correct installation practices and routine maintenance are essential. This guide highlights the key points that engineers, maintenance teams, and industrial buyers care about most.
Before installing the valve, always confirm the following:
· Material & rating verification: Ensure valve body material, pressure class, and port type match the process conditions.
· Flange surface condition: Seal faces must be clean, flat, and free from scratches.
· Pipeline flushing: Remove welding slag, rust, or solid particles to protect the ball and seats.
· Electrical compatibility: Confirm actuator voltage, wiring requirements, control signal type, and grounding.
· Use of V-type ball valves: Recommended for precise flow modulation or when handling slurry, fibers, or media with impurities.
These checks help avoid leakage, excessive torque, actuator overload, and operational instability.
Correct installation significantly extends service life and improves sealing performance:
· Actuator orientation: Install the valve horizontally or vertically with the actuator positioned on top to prevent moisture ingress.
· Even flange bolt tightening: Tighten bolts in a crisscross pattern to ensure uniform sealing pressure.
· Manual test before energizing: Ensure smooth operation before connecting electricity or control signals.
· Calibrate actuator settings: Set open/close limits, torque protection, and control range as required.
· Outdoor installation: For outdoor or humid environments, use an actuator with IP67 or IP68 protection to guard against rain, dust, and condensation.
Following correct installation procedures ensures stable performance under high pressure, high temperature, or corrosive conditions.
Electric actuated ball valves require minimal maintenance, but periodic inspection is recommended:
· Check sealing components: Inspect valve seats, gaskets, and flange connections for wear or loosening.
· Monitor actuator health: Listen for abnormal noise, check for overheating or vibration, and verify smooth movement.
· Stem lubrication & packing replacement: Apply lubrication when necessary and replace worn packing to prevent leakage.
· V-type valve performance check: For modulating applications, verify control accuracy and recalibrate as needed.
Preventive maintenance helps avoid emergency shutdowns and unexpected process failures.
| Issue | Possible Cause | Recommended Action |
| Valve not operating | Wiring error, incorrect voltage, limit setting fault | Verify wiring and recalibrate actuator |
| Minor leakage | Loose bolts or worn seats | Retighten bolts / replace seats |
| Slow opening or closing | Insufficient power or actuator failure | Check power supply or replace actuator |
| Unstable control (V-type) | Incorrect control signal or worn seat | Recalibrate signal / replace seat |
Correct installation, suitable actuator selection, and routine maintenance are the keys to long-term reliability. SLVCN provides standard straight-through electric flanged ball valves, three-way electric flanged ball valves, V-type electric flanged ball valves, andhigh-temperature electric flanged ball valves, and valves up to DN600, along with IP68-rated electric actuators, ensuring stable performance in water, oil, gas, steam, and corrosive applications.
This article is part of SLVCN's Valve Knowledge Series, where we share practical insights on valve selection, operation, and automation.
Read our previous posts:
Smarter Flow Control: Why Electric Actuated Flanged Ball Valves Are a Reliable Choice?
Smart Selection Guide: How to Choose the Right Electric Flanged Ball Valve for Your System
Which Ball Valve Do You Need? Threaded Vs Flanged Explained
