Sigma 811046606 Fig 1164R Reducing Tee Npt Malleable Iron

Product Description

The SIGMA 811046606 is a FIG 1164R reducing tee fitting designed for threaded pipe assemblies in commercial and industrial piping systems. It features a three-port reducing configuration with nominal sizes of 1-1/2 x 1-1/4 x 1 inch and National Pipe Taper (NPT) end connections on all ports. Constructed from malleable iron with a galvanized finish, this fitting is rated at 300 lb pressure class. Licensed plumbers and pipefitters install this type of fitting where a main run requires a branch takeoff at a reduced diameter, making it a standard component in mechanical piping layouts.

This reducing tee is suited for residential and commercial mechanical piping applications including steam, water, gas, and air distribution systems where NPT threaded connections are specified. The 300 lb pressure rating supports use in higher-demand systems compared to standard 150 lb fittings. The galvanized malleable iron construction is appropriate for use in exposed or moderately corrosive environments where additional protection against rust and oxidation is required.

Key Features

• Reducing configuration: 1-1/2 x 1-1/4 x 1 inch nominal sizes accommodate branch and run diameter changes in a single fitting
• NPT threaded end connections on all three ports for standard threaded pipe assembly
• 300 lb pressure class for elevated-pressure service requirements
• Malleable iron construction provides impact resistance and ductility over standard cast iron
• Galvanized finish adds corrosion resistance for extended service life

Compatibility

Designed as an OEM-style replacement or new-installation fitting for threaded malleable iron pipe systems using NPT connections at the specified nominal sizes.

Installation Notes

Installation of threaded pipe fittings should be performed by a licensed plumber or pipefitter in accordance with applicable codes such as the International Plumbing Code (IPC) or International Fuel Gas Code (IFGC). Shut off and depressurize the pipe system completely before disassembling or installing any fitting. Apply an approved thread sealant or PTFE tape to male NPT threads before assembly. Do not over-tighten threaded connections, as malleable iron fittings can crack under excessive torque.

Technical Specifications

• Nominal Size: 1-1/2 x 1-1/4 x 1 inches
• End Style: NPT (National Pipe Taper)
• Pressure Rating: 300 lb
• Material: Malleable Iron
• Finish: Galvanized
• Figure Number: FIG 1164R

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 811046606