Watts 547103 3/4 Inch Full Port Threaded Brass Ball Valve

Product Description

The WATTS 547103 is a full port threaded brass ball valve sized at 3/4 inch, designed for reliable shutoff and flow control in commercial and residential plumbing, HVAC hydronic systems, and light industrial piping. The full port design minimizes pressure drop across the valve, making it well suited for applications where flow efficiency matters. Constructed from brass, the valve offers solid corrosion resistance in water service applications. It carries CSA, UL, and FM certifications, meeting widely recognized standards for safety and performance. Licensed plumbers and HVAC technicians install this valve in hydronic heating systems, domestic water lines, and mechanical room piping.

The WATTS 547103 is appropriate for use in 3/4 inch threaded piping systems in both residential and light commercial settings. The threaded end connections allow installation into standard NPT pipe runs without the need for soldering or specialized tooling. Typical applications include isolation service on water heaters, boilers, chillers, and branch supply lines. The full port bore supports unrestricted flow, which is important in systems where velocity or pressure drop must be controlled.

Key Features

• Full port bore minimizes pressure drop and maintains flow efficiency
• Brass construction provides corrosion resistance in water and hydronic service
• Threaded end connections compatible with standard NPT pipe fittings
• 3/4 inch size suits common residential and light commercial piping
• CSA, UL, and FM certified for code-compliant installations

Compatibility

Designed as an OEM-style replacement or new-installation ball valve for 3/4 inch threaded piping systems in plumbing, HVAC hydronic, and light industrial applications.

Installation Notes

Installation should be performed by a licensed plumber or qualified mechanical contractor in accordance with applicable local plumbing codes and IAPMO or IPC standards. Shut off the water supply and relieve system pressure before removing an existing valve or installing into a live line. Use pipe thread sealant or PTFE tape on all threaded connections and verify joint integrity before returning the system to service. Do not exceed the rated pressure and temperature specifications for the valve in service.

Technical Specifications

• Material: Brass
• Port: Full Port
• Size: 3/4 inches
• Connection Type: Threaded
• Certifications: CSA, UL, FM
• Weight: 45.60 pounds

Standard Information

• Brand: WATTS
• Manufacturer Part Number: 547103