1. Pre-Installation Preparation

• 1Disconnect the valve from the pipeline and relieve system pressure
• 2Verify the actuator's torque rating matches valve requirements
• 3Check mounting flange alignment with valve stem (use adapter if needed)

2. Mechanical Mounting

• 1Align actuator's drive shaft with valve stem for secure fit
• 2Tighten mounting bolts evenly to avoid misalignment
• 3Follow manufacturer's torque specifications
• 4Confirm no binding when manually rotating valve

3. Air Supply Connection

• 1Identify actuator's air ports (typically marked "open" and "close")
• 2Connect compressed air lines using thread sealant
• 3Install filter-regulator-lubricator (FRL) in air supply line

4. Testing and Calibration

• 1Test both opening and closing cycles with air supply
• 2Check for smooth movement (no jamming or excessive noise)
• 3Use protractor to confirm full 90° rotation
• 4Adjust limit switches to prevent over-travel
• 5Reconnect valve to pipeline after successful testing

5. Final Checks

• 1Inspect all connections for leaks using soapy water
• 2Verify actuator response to control signals
• 3Document installation details:
  • Pressure settings
  • Torque values
  • Test results