Specialty Mfr 3422090 Manual Ball Valve 1/8 Inch Fnpt

Product Description

The SPECIALTY MFR 3422090 is a standard manual ball valve designed for 1/8 inch pipe connections in fluid control applications across plumbing, HVAC, and light industrial systems. The valve features a three-way FNPT x FNPT x FNPT end connection configuration with a brass body, making it suitable for use in low-pressure service lines where a compact shutoff or diverting solution is required. A wedge-style handle provides positive tactile feedback and a clear open/closed indication. Buna-N seals and a PTFE seat deliver dependable shutoff performance across a range of compatible media. Licensed plumbers and HVAC technicians are the typical installers for this type of fitting.

This ball valve is suited for residential and light commercial installations where 1/8 inch threaded connections are specified. Common applications include gauge isolation, pilot line shutoffs, instrumentation ports, and branch line diverting in gas or liquid service lines. The three-way port configuration allows for flow diversion rather than simple inline shutoff, adding versatility in tight manifold or control-line assemblies. The compact brass body fits well in confined mechanical spaces where standard wrenches or adjustable pliers can be applied to the wedge handle.

Key Features

• Brass body construction provides corrosion resistance in both wet and dry service environments
• Three-way FNPT x FNPT x FNPT end connections for diverting or mixing flow configurations
• Wedge-style handle for clear open/closed indication and positive manual operation
• Buna-N seal material compatible with a broad range of fluid media
• PTFE seat material supports low-friction operation and reliable shutoff
• Compact 1/8 inch pipe size fits gauge ports, pilot lines, and instrumentation connections

Compatibility

Designed as a standard OEM-style replacement or new-installation manual ball valve for 1/8 inch FNPT threaded pipe connections in plumbing, HVAC, and light industrial control line applications.

Installation Notes

Installation should be performed by a licensed plumber or qualified HVAC technician in accordance with applicable local plumbing codes and the IPC or IFGC as relevant to the service media. Shut off upstream supply pressure and depressurize the line fully before removing any existing fitting or installing this valve. Apply thread sealant or PTFE tape to male threads per standard practice before making up connections. Do not overtighten FNPT connections, as brass fittings at this pipe size can be damaged by excessive torque.