Schneider Electric (Barber Colman) 20-693 Tube Assembly

When you are servicing legacy pneumatic control systems, using the correct Schneider Electric (Barber Colman) 20-693 tube assembly is essential for maintaining accurate thermal response. This 3/16-inch Tygothane tube assembly is specifically engineered for two-pipe thermostat applications, serving as the critical pneumatic link between the sensing bulb and the controller. The Tygothane tubing construction provides superior flexibility and chemical resistance compared to standard vinyl, ensuring it won't harden or crack in the demanding environments typical of commercial air handlers or mechanical rooms.

The 20-693 Barber Colman assembly features an integrated internal support spring to prevent kinking in tight enclosures, maintaining a consistent internal diameter for precise pressure signal transmission. This unit is designed with four eyelets for secure mounting but is supplied without fittings, allowing technicians to reuse existing hardware or customize the connection based on the specific thermostat tube assembly requirements. As a direct replacement for the older 10-11 part number, it ensures seamless compatibility with vintage pneumatic HVAC systems without needing structural modifications to the control stat housing.

Key Benefits:

• Compatible with high-performance Schneider Electric pneumatic controls and legacy Barber Colman thermostats.
• Reinforced with an integrated spring to ensure reliable airflow and prevent signal-dampening kinks.
• Constructed from 3/16" Tygothane for industrial-grade durability and resistance to environmental degradation.
• Equipped with four compression eyelets for versatile mounting configurations in complex control cabinets.
• Serves as a drop-in replacement for the Barber Colman 10-11, minimizing downtime during field repairs.

Common Questions:

Which thermostat models use the 20-693 tube assembly?
The 20-693 is primarily utilized in two-pipe pneumatic thermostats that require a 3/16" connection, commonly found in Barber Colman and Schneider Electric room controllers.

Does this assembly include the necessary brass fittings?
No, this specific assembly includes the tube with eyelets and spring only. You will need to utilize your existing pneumatic fittings or source them separately for the final installation.

Can I use this to replace a 10-11 part?
Yes, the Schneider Electric 20-693 is the industry-standard technical replacement for the discontinued 10-11 tube assembly.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.