Nibco F739 4 Circuit Balancing Valve Fixed Orifice Flanged (4 in.)

Product Description

The Nibco F739 4 is a fixed-orifice manual circuit balancing valve for HVAC and mechanical hot and chilled water systems. It features a ductile iron body and bonnet, an EPDM-coated disc, and a PTFE plus EPDM stem seal. Integral pressure/temperature ports allow direct differential pressure readout across the orifice for flow determination, while an internal memory stop preserves setpoints; ANSI Class 150 flanged connections and a 230 PSI rating.

• Fixed-orifice design enables flow setting and measurement via integral pressure/temperature ports without special calculators or meters
• Ductile iron body and bonnet with EPDM-coated disc and PTFE + EPDM stem seal for sealing performance
• Integral internal memory stop retains settings and provides isolation; ANSI Class 150 flanged end connections rated to 230 PSI

Product Highlights

4 in. fixed-orifice manual balancing valve; ductile iron construction; integral differential pressure ports; memory stop; ANSI Class 150, 230 PSI; 250°F max at 175 PSI

Product Information

Standard Information

• Brand: NIBCO
• Manufacturer Part Number: F739 4