Watts R105-04C Regulator

When you are looking for field-proven reliability in air preparation, the Watts R105-04C Regulator stands as a staple for industrial pneumatic systems. This 1/2" NPT pressure regulator is engineered for high-demand environments, featuring a rugged aluminum body and a balanced poppet design that ensures rapid response to downstream flow changes. As a veteran-grade compressed air regulator, it manages a maximum inlet pressure of 300 PSI with a highly adjustable 0-125 PSI outlet range, providing the consistent pressure control necessary to protect sensitive air-driven equipment. Its modular QUBE system compatibility allows for seamless integration with other FRL components using simple o-rings and screws, eliminating the need for complex mounting brackets. Designed with 150 SCFM flow capacity and relieving-type diaphragm architecture, this unit maintains system stability even under fluctuating demand, making it an essential pick for contractors focused on long-term pneumatic system maintenance.

• Modular QUBE Design: Enables quick series connections with other Watts QUBE units for compact and efficient air stations.
• High Flow Performance: Delivers up to 150 SCFM, ensuring industrial tools and actuators receive adequate CFM without starving the line.
• Accurate Regulation: Features a diaphragm-operated build with a balanced poppet for low-hysteresis pressure management.
• Versatile Mounting: Includes integral mounting slots and supports panel mounting for flexible installation in tight enclosures.
• Secondary Pressure Relief: The relieving design allows for the discharge of excess downstream pressure when the set point is lowered.

What is the maximum temperature rating for this regulator?
The R105-04C is typically rated for operating temperatures up to 120°F (49°C), making it suitable for standard indoor industrial shop environments.

Does this unit include a pressure gauge?
Standard models are equipped with two 1/4" NPT gauge ports (front and back), though the gauge itself is usually sold separately depending on your required face diameter and scale.

Can I use this for water service?
No, this regulator is specifically designed for compressed air service. Using it with water or other fluids can damage the Buna-N seals and internal components.

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.