Water/Air Silicone Tubing – 9.1 mm OD × 6.14 mm ID

Laser Machine Tubing & Hoses

Water/Air Silicone Tubing – 9.1 mm OD × 6.14 mm ID

This flexible silicone water and air tubing is designed for compatible CO2 laser engraving and cutting machine applications. Featuring a 9.1 mm outer diameter (OD) and 6.14 mm inner diameter (ID), it provides a practical replacement option for connecting air supplies and routing cooling water through appropriately sized fittings.

Commonly used to transfer air from a small diaphragm air compressor to the laser machine, this tubing is also listed for certain 30W CO2 laser tube cooling connections. Its flexible silicone construction makes it convenient for routing around machine components. Sold by the foot, it allows you to purchase the length needed for maintenance, repairs, or replacement.

Key Features

• Flexible silicone tubing for compatible laser machine air and water applications
• 9.1 mm outer diameter and 6.14 mm inner diameter
• Suitable for appropriately sized air connections between small diaphragm compressors and laser machines
• Listed for certain 30W CO2 laser tube cooling connections when fitting dimensions match
• Flexible construction helps accommodate curved routing paths inside laser machine cabinets
• Practical replacement for worn, damaged, or aging air and water tubing
• Sold by the foot for convenient maintenance and replacement projects

Product Specifications

Product Type	Water/Air Tubing
Material	Silicone
Outer Diameter (OD)	9.1 mm (Approximately 0.358")
Inner Diameter (ID)	6.14 mm (Approximately 0.242")
Wall Thickness	Approximately 1.48 mm (Calculated from Listed Diameters)
Primary Application	Air Supply Lines for Compatible Laser Machines
Additional Application	Compatible CO2 Laser Tube Cooling Lines
Construction	Flexible Silicone Tubing
Unit of Sale	Per Foot
SKU	261
Quantity	1 = 1 Foot of Tubing

How Water/Air Silicone Tubing Works

CO2 laser machines rely on tubing to move air and cooling water between system components. Air lines connect the air supply to the machine's air-assist system, while water lines circulate cooling water between the laser tube and its cooling equipment.

This silicone tubing features a 6.14 mm internal passage for air or compatible liquids. When connected to appropriately sized fittings, it provides a flexible route between components while accommodating bends and changes in direction within the machine.

Correct tubing dimensions, suitable operating conditions, and secure connections are important for maintaining airflow and water circulation. Improperly sized or damaged tubing can cause leaks, restrictions, or interruptions in machine operation.

Air Supply and Laser Tube Cooling Applications

Air Supply Connections: This tubing can be used to route air from a compatible small diaphragm air compressor to a laser machine's air system. Its flexible construction is useful when connecting equipment or routing tubing around cabinet components.

CO2 Laser Tube Cooling: The original product listing identifies this tubing as an option for certain 30W laser tube glass fittings. When dimensions and operating requirements are appropriate, it may be used to connect cooling water lines to compatible laser tubes.

Glass laser tube connections require particular care. A tubing size that works with one tube may not fit another. Verify the actual glass fitting diameter and use an installation method that avoids excessive force on the glass.

Choosing the Correct Silicone Tubing Size

Rabbit Laser USA offers multiple tubing sizes for different air and water connections. This 9.1 mm OD × 6.14 mm ID version has a larger internal passage than our 6.5 mm OD × 3.6 mm ID silicone tubing.

The larger internal diameter may be appropriate for connections requiring a greater passage size, but actual airflow and water flow depend on the entire system, including the pump or compressor, fittings, tubing length, and routing.

Always select tubing by measuring both the inner and outer diameters of your existing hose and confirming the size required by the connection. Different tubing sizes should not be treated as interchangeable without checking the fittings and operating requirements.

Confirm Compatibility Before Ordering

Before purchasing replacement silicone tubing, compare the following details with your existing machine and components:

• Existing tubing inner and outer diameters
• Compressor outlets, hose barbs, and connector dimensions
• Glass laser tube fitting dimensions, if used for cooling water
• Required tubing length and routing path
• System air or water pressure requirements
• Operating temperature and material compatibility

A matching outer diameter or laser tube wattage alone does not guarantee compatibility. Confirm the dimensions of the actual connection before ordering. The specific pressure and temperature ratings of this tubing have not been established, so suitability for demanding applications must be verified.

Installation & Safety

Before replacing tubing, turn off the laser machine and connected air or water equipment. Release system pressure and drain water where necessary. Cut the tubing cleanly to the required length and install it using appropriately sized connections and any necessary retainers.

When connecting tubing to a glass CO2 laser tube, avoid twisting, pulling, or forcing the hose onto the glass fitting. Route tubing away from moving components and heated surfaces, and avoid kinks or pinched sections. After installation, inspect for leaks and verify proper airflow or cooling water circulation before operating the laser.