Description
Maxitrol R5210-412 Violet Replacement Spring
The Maxitrol R5210-412 is a genuine OEM replacement spring designed for use with Maxitrol RV52, R500, and R500S series gas pressure regulators. Color-coded violet for quick field identification, this spring covers an outlet pressure range of 4–12 inches water column (“w.c.), making it well-suited for a variety of residential and light commercial gas regulation applications.
Key Features
- Outlet pressure range: 4–12″ w.c. (inches water column)
- Violet color coding for fast, accurate field identification
- Compatible with Maxitrol RV52, R500, and R500S series regulators
- Genuine Maxitrol OEM replacement part
- Allows field adjustment of regulator outlet pressure set point
- Precision-manufactured for consistent, reliable performance
Application & Compatibility
This spring is a direct replacement component for Maxitrol’s RV52, R500, and R500S series regulators. Swapping springs allows technicians to change the pressure range of an existing regulator without replacing the entire unit, saving time and cost on service calls. Always verify the required outlet pressure range before selecting a replacement spring, and consult the regulator’s installation instructions for proper spring installation procedures.
Why Choose Maxitrol?
Maxitrol is a trusted name in gas pressure regulation, known for precision engineering and durable construction. Using genuine Maxitrol replacement parts ensures your regulator performs to its original specifications, maintaining safe and efficient gas delivery in every application.







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