Maxitrol 210J-4 Regulator

The Maxitrol 210J-4 is a high-capacity gas pressure regulator engineered for industrial and commercial manifolds where precision pressure control is non-negotiable. Featuring a 4 inch 125# flange connection, this unit handles a 10 PSI maximum inlet pressure and provides a stable 3-8" w.c. outlet pressure range. As the primary RV-131 replacement, the 210J-4 utilizes a balanced valve design to mitigate the effects of inlet pressure fluctuations, ensuring consistent downstream delivery. This lock-up style gas regulator is built for high-demand applications, providing tight shut-off during zero-flow conditions to protect downstream components. Its rugged construction makes it a standard specification for larger boilers, furnaces, and commercial water heating systems. For technicians replacing legacy industrial gas regulators, this model offers a direct mechanical upgrade with improved response times and superior low-pressure drop performance across the internal orifice.

• Balanced Valve Design: Eliminates hunting and ensures stable gas pressure regulation even when supply pressures vary significantly.
• 4-inch Flanged Connection: Standard 125lb ANSI flange pattern for seamless integration into commercial gas piping systems.
• Lock-Up Capability: Provides reliable shut-off at zero flow, preventing pressure creep in the manifold.
• Direct RV-131 Interchange: Simplifies retrofits by matching the footprint and flow characteristics of older Maxitrol series.
• High Flow Capacity: Optimized internal geometry supports high-volume BTU loads required for industrial heating equipment.

Common Technical Questions

Can the 210J-4 be mounted in any orientation?
Standard installation requires the regulator to be mounted horizontally; however, it can be mounted in other positions if the vent is piped correctly and the spring is calibrated for the specific orientation.

What is the difference between the 210J and the legacy RV-131?
The 210J-4 is the functional and dimensional successor to the RV-131, featuring updated materials for better diaphragm sensitivity and longevity in low pressure gas system applications.

Does this regulator require an external vent line?
Yes, for indoor installations and per most local mechanical codes, the vent must be piped to a safe outdoor location to ensure the balanced valve gas regulator functions safely.

This item must ship via truck. Please contact us for freight quote.

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.