Watts R119-04B Regulator

The Watts R119-04B Regulator (also identified as model 0497671) is a heavy-duty, 1/2" NPT high-flow pneumatic control designed for rigorous industrial air preparation. Engineered with a diaphragm operated design and a balanced poppet, this unit ensures rapid response times and stable secondary pressure regulation even during significant fluctuations in upstream flow. Supporting a maximum inlet pressure of 300 PSI, this regulator is optimized for a reduced pressure range of 0 to 60 PSI, making it ideal for precision tooling and air-actuated machinery. The rugged zinc body construction and Buna-N seals provide reliable performance in demanding shop environments, while the large T-handle adjustment allows for easy manual calibration under load. This relieving type regulator includes dual 1/4" NPT gauge ports for flexible monitoring and a high flow capacity of approximately 150 SCFM, ensuring minimal pressure drop across the valve during peak demand.

• Precise Pressure Control: The secondary aspiration and balanced poppet design maintain consistent downstream PSI despite supply line variations.
• High Volume Throughput: Rated for up to 150 SCFM at 100 PSI inlet, supporting multiple air tools or high-demand pneumatic circuits.
• Durable Construction: Built with a rugged zinc body and steel adjustment springs for longevity in industrial HVACR and manufacturing settings.
• Easy Serviceability: Features a simplified internal architecture and is compatible with standard repair kits for rapid field maintenance.

Is the Watts R119-04B compatible with water systems?
No, this specific model is a pneumatic regulator designed exclusively for compressed air and non-corrosive gases. Using this unit with water may lead to internal corrosion and failure.

What is the difference between R119-04B and 0497671?
These parts are functionally identical. The R119-04B is the manufacturer series designation, while 0497671 is the specific global ordering code for this 1/2", 0-60 PSI configuration.

Does this regulator allow for panel mounting?
Standard R119-04B models are designed for in-line pipe mounting via the 1/2" NPT ports. For panel mount applications, specific "P" suffix variants or separate mounting brackets are required.

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.