Watts 0121255 Regulator

Optimized for precision fluid control, the Watts 0121255 (Series LF560) is a 1/4 inch lead free mini water pressure regulator engineered for OEM and industrial process applications where space and accuracy are paramount. This high-performance pressure reducing valve features a rugged lead-free brass body and is factory set at 15 psi, though it supports a field-adjustable range of 0-25 psi. Technicians will appreciate the integrated pressure gauge for real-time monitoring and the oversized orifices that ensure consistent flow even in low-pressure settings. Designed as a direct replacement for 0354501, it utilizes a durable Buna-N diaphragm and stainless steel internal components to withstand incoming supply pressures up to 300 psi. Whether you are servicing professional-grade food service equipment or industrial plumbing systems, this regulator provides the sensitivity required for delicate downstream components.

• Versatile Compatibility: Direct cross-reference replacement for model 0354501, ensuring seamless integration into existing 1/4" NPT systems.
• Enhanced Monitoring: Equipped with a standard 1/8" gauge port and included pressure gauge for exact field calibration.
• Durable Internal Trim: Features a stainless steel stem and spring paired with a Buna-N seat for superior wear resistance.
• Precision Adjustment: Includes a heavy-duty slotted and knurled adjusting screw for fine-tuning the 0-25 psi delivery range.

• How do I adjust the 0-25 psi setting? Use the knurled adjusting screw on top of the bell; tightening the screw increases the downstream pressure. Always monitor the gauge during adjustment to prevent over-pressurization.
• Can this be used for potable water applications? Yes, the lead free brass body construction meets all current regulatory requirements for potable water installation.
• What causes the regulator to hum or vibrate? This is often caused by high-velocity flow or air trapped in the system. Ensure the regulator is correctly sized for your GPM requirements and that the system has been properly bled.

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.