Johnson Controls R-3710-2007 Coupling

The Johnson Controls R-3710-2007 is a high-precision .007" Restrictor Coupling engineered for critical flow regulation within pneumatic control systems. Designed as an inline straight coupling, this component features integrated barbed fittings specifically sized for 1/4 inch O.D. polytubing. For veteran technicians managing complex HVAC pneumatic controls, the aqua color-coding provides immediate field identification of the 0.007-inch (0.18 mm) orifice size, ensuring the system maintains the exact pressure drops required for calibrated pneumatic operating systems. Manufactured from durable thermoplastic, it supports a maximum operating pressure of 25 psig and remains stable in temperatures up to 180?F. This OEM part is essential for balancing branch lines or limiting air consumption in controllers and actuators, such as the T-4100 series. By utilizing a fixed orifice, the R-3710-2007 coupling delivers a consistent output flow capacity of 45 scim at 20 psig, eliminating the variables found in adjustable needle valves and securing long-term HVAC system diagnostics accuracy.

• Precise Flow Management: The .007" fixed orifice ensures repeatable performance and prevents system-wide pressure imbalances.
• Contractor-Grade Durability: Thermoplastic construction provides reliable service life in high-temperature environments up to 180?F.
• Efficient Installation: Integrated 1/4" barb connectors allow for rapid, leak-resistant connection to standard polyethylene or copper tubing.
• Visual Identification: Aqua color-coding allows technicians to quickly verify restrictor specs during commercial HVAC maintenance.

Common Questions

What is the difference between the red and aqua Johnson Controls restrictors?
The color coding indicates the orifice size of the inline restrictor. Red signifies a .005" orifice, while aqua identifies the .007" orifice found in the R-3710-2007, which allows for a higher flow capacity of 45 scim.

Can this coupling be used with copper tubing?
While optimized for 1/4" O.D. polytubing via the barbed fittings, this restrictor can be integrated into copper lines when used with appropriate pneumatic compression adapters or sleeves to maintain a secure seal.

Is the R-3710-2007 suitable for high-pressure pneumatic lines?
No. This component is specifically designed for low-pressure pneumatic control systems and is rated for a maximum pressure of 25 psig. Exceeding this limit can cause fitting failure or inaccurate flow regulation.

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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.