WENK Pneumatic SML Series Multi Connector
Product Detail
Working Pressure |
0.1-0.9Mpa(1-9kgf/cm²) |
Proof Pressure |
1.35Mpa(13.5kgf/cm²) |
Working Temperature Range |
0℃~60℃ |
Body Material |
Zinc Alloy |
SML Series Multi-Line Connector User Guide

Product Introduction
The WENK Pneumatic SML Series Multi-Line Connector is an advanced modular pneumatic connection solution designed for simultaneous connection of multiple air circuits. Available in 2 to 6 outlet configurations, this series enables efficient multi-line connections and air distribution in industrial pneumatic systems.
Constructed with a high-strength aluminum body and corrosion-resistant plating, the SML Series ensures exceptional durability and long service life even in harsh industrial environments. The integrated design not only simplifies complex piping systems but also reduces potential leak points, enhancing system reliability.

Installation Steps
-
Preparation
- Ensure the air supply is turned off and the pipeline is depressurized
- Clean the connector and pipe interfaces, ensuring no dust, oil, or debris
- Check that the O-rings are intact and undamaged
- Verify that the SML connector specifications and number of ports meet system requirements
-
Main Connector Installation
- Select an appropriate installation location based on the system layout
- Connect the inlet port of the SML connector to the main air supply pipe
- For threaded connections, use PTFE tape or thread sealant to enhance sealing
- Ensure a secure connection with no looseness
- Secure the SML connector in place using brackets or fixtures to prevent vibration-related issues
-
Branch Line Connection
- Verify that the branch line connectors match the SML connector specifications
- Insert each branch line into the corresponding outlet of the SML connector until a clear "click" is heard
- Gently pull the branch line to confirm a secure connection
- Adjust the branch line routing as needed, ensuring no excessive bending or tension
-
System Inspection
- Turn on the air supply and check all connections for leaks
- Verify that the pressure in each line is normal
- Test the system operation to ensure all pneumatic components function properly
Preparation
- Ensure the air supply is turned off and the pipeline is depressurized
- Clean the connector and pipe interfaces, ensuring no dust, oil, or debris
- Check that the O-rings are intact and undamaged
- Verify that the SML connector specifications and number of ports meet system requirements
Main Connector Installation
- Select an appropriate installation location based on the system layout
- Connect the inlet port of the SML connector to the main air supply pipe
- For threaded connections, use PTFE tape or thread sealant to enhance sealing
- Ensure a secure connection with no looseness
- Secure the SML connector in place using brackets or fixtures to prevent vibration-related issues
Branch Line Connection
- Verify that the branch line connectors match the SML connector specifications
- Insert each branch line into the corresponding outlet of the SML connector until a clear "click" is heard
- Gently pull the branch line to confirm a secure connection
- Adjust the branch line routing as needed, ensuring no excessive bending or tension
System Inspection
- Turn on the air supply and check all connections for leaks
- Verify that the pressure in each line is normal
- Test the system operation to ensure all pneumatic components function properly

Usage Instructions
-
Connection Operation
- Ensure all connectors and pipes are clean and undamaged
- Insert the branch line directly into the outlet port of the SML connector until a "click" is heard
- Test the connection by gently pulling after assembly
-
Disconnection Operation
- Turn off the air supply and release pressure from the system
- Press the unlock button on the branch line connector
- Maintain the unlocked state while pulling the branch line out smoothly
-
Daily Usage Notes
- Avoid excessive bending or twisting of the connected pipes
- Regularly inspect the connectors and pipes for wear or damage
- Keep the connectors clean to prevent debris from entering the pneumatic system
- Never attempt to disconnect under pressure
- Select the appropriate number of ports based on system requirements to avoid unnecessary exposed interfaces
Connection Operation
- Ensure all connectors and pipes are clean and undamaged
- Insert the branch line directly into the outlet port of the SML connector until a "click" is heard
- Test the connection by gently pulling after assembly
Disconnection Operation
- Turn off the air supply and release pressure from the system
- Press the unlock button on the branch line connector
- Maintain the unlocked state while pulling the branch line out smoothly
Daily Usage Notes
- Avoid excessive bending or twisting of the connected pipes
- Regularly inspect the connectors and pipes for wear or damage
- Keep the connectors clean to prevent debris from entering the pneumatic system
- Never attempt to disconnect under pressure
- Select the appropriate number of ports based on system requirements to avoid unnecessary exposed interfaces

Troubleshooting
-
Air Leakage
- Check if the O-rings are damaged and replace if necessary
- Verify that connections are fully seated and reconnect if needed
- Inspect the pipes for cracks or damage
- Check if threaded connections are loose and tighten appropriately
-
Difficulty Connecting or Disconnecting
- Check if the locking mechanism is blocked by debris, clean and retry
- Confirm that connector specifications match
- Inspect for any deformation or damage to components
-
Insufficient Pressure or Reduced Flow
- Check if the system pressure is normal
- Verify all connections are secure and free from leaks
- Inspect the air path for blockages
- Check if the interior of the SML connector is clogged with debris
Air Leakage
- Check if the O-rings are damaged and replace if necessary
- Verify that connections are fully seated and reconnect if needed
- Inspect the pipes for cracks or damage
- Check if threaded connections are loose and tighten appropriately
Difficulty Connecting or Disconnecting
- Check if the locking mechanism is blocked by debris, clean and retry
- Confirm that connector specifications match
- Inspect for any deformation or damage to components
Insufficient Pressure or Reduced Flow
- Check if the system pressure is normal
- Verify all connections are secure and free from leaks
- Inspect the air path for blockages
- Check if the interior of the SML connector is clogged with debris

Maintenance
-
Regular Inspection
- Check O-ring condition weekly
- Inspect the locking mechanism monthly for flexibility
- Check the tightness of threaded connections monthly
- Perform a comprehensive inspection and cleaning quarterly
-
Cleaning Method
- Wipe the connector surfaces with a clean cloth
- For stubborn stains, use a neutral cleaning agent
- Ensure the connector is completely dry before use after cleaning
- Periodically purge the interior of the SML connector with compressed air to remove possible debris
-
Storage Recommendations
- Store connectors in a dry, clean environment when not in use for an extended period
- Use dust caps to protect all interfaces
- Avoid direct sunlight and high-temperature environments
- For removed O-rings, apply a small amount of grease before separate storage
Regular Inspection
- Check O-ring condition weekly
- Inspect the locking mechanism monthly for flexibility
- Check the tightness of threaded connections monthly
- Perform a comprehensive inspection and cleaning quarterly
Cleaning Method
- Wipe the connector surfaces with a clean cloth
- For stubborn stains, use a neutral cleaning agent
- Ensure the connector is completely dry before use after cleaning
- Periodically purge the interior of the SML connector with compressed air to remove possible debris
Storage Recommendations
- Store connectors in a dry, clean environment when not in use for an extended period
- Use dust caps to protect all interfaces
- Avoid direct sunlight and high-temperature environments
- For removed O-rings, apply a small amount of grease before separate storage

Safety Precautions
- Ensure connector specifications match system requirements before use
- Do not exceed the maximum working pressure of the connector
- Ensure the system is depressurized before connecting or disconnecting
- Regularly inspect connector condition and replace immediately if damaged
- Avoid using the connector with non-specified media
- Ensure the SML connector is securely fastened during installation to prevent loosening due to vibration
- Always turn off the air supply and relieve pressure before performing maintenance or replacement












