Watts R119-04D Regulator

The Watts R119-04D is a high-capacity pneumatic pressure regulator engineered for demanding industrial air preparation. Featuring a 1/2" NPT female inlet and outlet, this diaphragm-operated regulator is built with a rugged zinc housing and a balanced poppet design to ensure rapid response and pinpoint accuracy across a broad flow spectrum. It handles a maximum inlet pressure of 300 PSIG and provides a precise secondary pressure range of 5 to 250 PSI. Designed for versatility, it includes dual 1/4" NPT gauge ports for flexible monitoring. The heavy-duty tee-handle adjustment allows for reliable operation even in high-vibration HVACR environments. Its relieving design safely vents downstream overpressure, making it a critical component for protecting sensitive control valves and air tools. Utilizing Buna-N seals, this unit maintains a steady flow rate of up to 150 SCFM, ensuring consistent system performance under varied load conditions.

Key Benefits

• Optimized Flow Performance: Maintains constant downstream pressure despite wide variations in primary line flow.
• Industrial-Grade Build: Constructed with a durable zinc body and steel adjustment screws for long-term reliability.
• Precision Control: The balanced poppet design prevents inlet pressure fluctuations from affecting the regulated output.
• Easy Maintenance: The T-handle adjustment provides veteran technicians with a tactile, heavy-duty interface for field calibration.
• Enhanced Safety: Built-in relieving function automatically manages excess downstream pressure for system protection.

Common Questions

What is the maximum flow capacity for this 1/2" regulator?
The Watts R119-04D supports a high flow rate of up to 150 SCFM, making it suitable for high-demand industrial pneumatic systems.

Does this unit include a pressure gauge?
No, a gauge is not included, but the body features dual 1/4" NPT ports for the easy installation of a standard back-mount or vertical gauge.

Can this regulator be used with bottled gases?
No, this series is strictly designed for compressed air systems and non-corrosive gases; it should never be connected to high-pressure bottled gas cylinders.

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.