Sigma 811050210 Galvanized Reducing Tee 2x1-1/2x1-1/4 Fnpt 150lb

Product Description

The SIGMA 811050210 is a FIG 3105R malleable iron galvanized reducing tee designed for threaded pipe systems operating at up to 150 lb class pressure. The fitting features female national pipe thread (FNPT) connections on all three ports with a run size of 2 inches, a branch outlet reducing to 1-1/2 inches, and a third port reducing to 1-1/4 inches. The galvanized finish provides corrosion resistance suitable for wet or exposed service conditions. Licensed plumbers and pipefitters install this type of fitting in commercial and industrial piping assemblies where branch lines require a step-down in pipe diameter without additional reducers.

This reducing tee is suited for residential and commercial plumbing, heating, and general-purpose pipe distribution systems that call for a threaded malleable iron fitting at 150 lb class service. The FNPT end style allows direct connection to standard NPT-threaded pipe and fittings across the 2-inch, 1-1/2-inch, and 1-1/4-inch nominal sizes. It is commonly used in hot and cold water supply, steam distribution at low pressure, and compressed air piping where a galvanized malleable iron fitting meets specification.

Key Features

• 150 lb class pressure rating suitable for general-purpose threaded piping service
• Malleable iron construction provides strength and impact resistance superior to cast iron in threaded applications
• Galvanized finish offers corrosion resistance for wet, damp, or exposed installations
• FNPT connections on all three ports for direct NPT pipe makeup
• Reducing configuration eliminates the need for separate inline reducers at branch takeoffs
• FIG 3105R designation confirms compliance with standard reducing tee dimensional patterns

Compatibility

Designed as an OEM-style threaded replacement fitting for 150 lb class malleable iron galvanized piping systems using 2-inch by 1-1/2-inch by 1-1/4-inch nominal NPT pipe connections.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with the International Plumbing Code (IPC) and applicable local codes. Shut off and depressurize the piping system completely before removing any existing fittings. Apply thread sealant or PTFE tape to male NPT threads before makeup and tighten to standard hand-tight-plus-turns practice for the pipe size. Do not over-torque threaded malleable iron fittings, as excessive force can crack the fitting body or strip threads.

Technical Specifications

• Nominal Size: 2 x 1-1/2 x 1-1/4 inches
• End Style: FNPT (Female National Pipe Thread)
• Pressure Rating: 150 lb class
• Material: Malleable Iron
• Finish: Galvanized
• Figure Number: FIG 3105R

Standard Information

• Brand: SIGMA
• Manufacturer Part Number: 811050210