Nibco 3992338450 Circuit Balancing Valve 1 Inch Press

Product Description

The NIBCO 3992338450 is a manual FLO-BOSS MLF circuit balancing valve from the PC-1810-LF series, designed for hydronic piping systems where precise flow control and balancing are required. Built with a brass body and brass/PTFE trim with EPDM/PTFE sealing components, this valve handles working pressures up to 200 psi and temperatures up to 250 degrees F. The press-end connection style allows for fast, flameless installation in 1-inch nominal copper piping. Domestically manufactured, this valve is sized for residential and light commercial hydronic heating and cooling applications where repeatable, reliable flow adjustment is essential.

This valve is installed in closed hydronic circuits — including chilled water, hot water heating, and fan coil supply or return lines — where balancing individual circuit flow is necessary to maintain system efficiency. With an inlet-to-outlet length of 6.77 inches and a top-to-inlet center dimension of 4.06 inches, it fits into standard mechanical room piping layouts. It is intended for installation by licensed plumbers or mechanical contractors working on hydronic systems.

Key Features

• Manual flow control with press-end connections for flameless installation on 1-inch copper pipe
• Brass body construction rated for 200 psi working pressure
• Temperature rated to 250 degrees F for hot water and chilled water service
• Brass/PTFE trim with EPDM/PTFE seals for long-term sealing reliability
• Domestically manufactured to support Buy American and project specification requirements
• 5-year limited warranty from NIBCO

Compatibility

Designed as an OEM-style replacement or new-installation circuit balancing valve for 1-inch press-end copper hydronic piping systems. Consult the PC-1810-LF series documentation to confirm fitment with specific hydronic system configurations.

Installation Notes

Installation should be performed by a licensed plumber or mechanical contractor familiar with hydronic balancing procedures. Depressurize and drain the affected circuit before removing or installing any valve. Press-end fittings require the appropriate press tool and jaw set rated for the connection size and valve body material. Follow all applicable local plumbing codes and ASME/ANSI standards for hydronic system service.