Watts R35-02C Regulator

The Watts R35-02C Regulator is a versatile 1/4" NPT miniature pressure regulator engineered for precise air preparation in demanding HVACR and pneumatic environments. This industrial-grade Parker-Watts R35 series unit manages a maximum inlet pressure of 300 PSI, providing a consistent 0-125 PSI output range for downstream equipment protection. For veteran technicians managing legacy systems, the R35-02C is identical to 21-482, ensuring seamless drop-in compatibility without requiring pipe modifications. Built with a durable zinc body and a high-flow piston design, this compressed air regulator delivers nearly double the flow capacity of standard miniature units, reaching up to 40 SCFM. Whether integrated into a modular QUBE system or used as a standalone refrigeration pressure control, it minimizes pressure drop and stabilizes airflow. The R35-02C miniature regulator utilizes a relieving diaphragm for accurate pressure venting and includes dual 1/8" NPT gauge ports for convenient system monitoring in tight mechanical spaces.

• Interchangeable Design: Drop-in replacement for part number 21-482, simplifying maintenance for older pneumatic setups.
• Enhanced Flow Performance: High-capacity piston design handles 40 SCFM, reducing system lag and energy-wasting pressure drops.
• Robust Construction: Zinc body and Buna-N elastomers provide reliable chemical resistance and mechanical durability.
• Precision Control: The non-rising adjustment knob allows for stable 0-125 PSI regulation even in fluctuating high-pressure lines.
• Compact Footprint: Miniature profile is ideal for panel mounting or installation in crowded refrigeration control cabinets.

Is this regulator suitable for water or liquid applications?
The R35-02C is primarily a pneumatic regulator designed for compressed air. For liquid applications, a non-relieving brass model (like the R364 series) with appropriate elastomers is generally required to prevent leakage.

Does the unit include a pressure gauge?
No, this model features dual 1/8" NPT gauge ports for flexible monitoring, but the 0-160 PSI gauge must be purchased separately if manual verification is needed at the regulator.

Can I use this as a replacement for the 0-60 PSI version?
Yes, the R35-02C (0-125 PSI) can cover the range of the R35-02B (0-60 PSI); however, for ultra-fine low-pressure sensitivity, the specific sub-range spring is always preferred.

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.