Nibco S-1810-LF-2 Manual Balancing Valve 2 Inches

Product Description

The NIBCO S-1810-LF-2 is a lead-free, fixed-orifice manual balancing valve with solder-end connections, designed for hydronic and plumbing distribution systems. Part of the FLO-BOSS 1810 Series, this valve features integral pressure-temperature (PT) ports that allow direct system readings across the orifice without special calculators or additional metering equipment. The valve delivers 1440 degrees of throttling adjustment for precise flow control. An integral memory stop allows the valve to be isolated for maintenance and returned to its pre-set flow position once service is complete. Dezincification-resistant construction supports long service life in aggressive water conditions.

The S-1810-LF-2 is suited for commercial and residential hydronic heating and cooling systems, domestic hot water recirculation, and plumbing distribution applications requiring balanced flow across multiple circuits. The 2-inch solder-end configuration makes it appropriate for copper piping installations in mechanical rooms, terminal unit branches, and riser assemblies. It is installed by licensed plumbers and mechanical contractors working on balanced-loop systems.

Key Features

• Fixed orifice with integral PT ports for direct differential pressure readings across the valve
• 1440 degrees of throttling adjustment for precise flow-rate setting
• Integral memory stop allows system isolation and return to retained settings after maintenance
• Lead-free and dezincification-resistant construction
• Solder-end (sweat) connection for copper pipe installation
• Backed by the NIBCO 5-year 125% limited warranty

Compatibility

Designed as an OEM-style fixed-orifice manual balancing valve for 2-inch copper pipe hydronic and plumbing systems requiring lead-free components.

Installation Notes

Installation should be performed by a licensed plumber or mechanical contractor in accordance with applicable IPC and local plumbing codes. Shut down and depressurize the system before soldering the valve into the line. Avoid applying excessive heat to the valve body during soldering to protect internal components. After installation, use the PT ports and a calibrated differential pressure meter to verify flow balance across the circuit.

Technical Specifications

• Connection Size: 2 inches
• Connection Type: Solder End (Sweat)
• Orifice Type: Fixed
• Throttling Range: 1440 degrees
• Lead-Free: Yes
• Dezincification-Resistant: Yes
• Integral PT Ports: Yes
• Memory Stop: Yes
• Warranty: 5-year 125% limited
• UPC: 039923368508

Standard Information

• Brand: NIBCO
• Manufacturer Part Number: S-1810-LF-2