1-1/2 inch x 3/4 inch x 1-1/2 inch Black Iron Reducing Tee Female x Female x Female

1-1/2" x 3/4" x 1-1/2" Black Malleable Iron Tee – Threaded Reducing Branch Tee for Gas and Water Piping Systems

The Black Malleable Iron Tee is a three-outlet threaded fitting designed for use in low- to medium-pressure systems conveying gas, water, or oil. Featuring a reducing center branch, this tee transitions from 1-1/2" main lines to a 3/4" branch line, allowing changes in flow direction or system configuration while maintaining mechanical integrity and code compliance.

This fitting is cast from ASTM A197 malleable iron and threaded in accordance with ANSI/ASME B1.20.1 standards. Its black finish is suitable for indoor applications where corrosion resistance is not critical. Used in both commercial and residential piping systems, it is compatible with Schedule 40 and Schedule 80 steel pipe and fittings.

Key Product Features

• ✅ Malleable Iron Body: Manufactured to ASTM A197 for strength and shock resistance in piping systems.
• ✅ Reducing Branch Configuration: Facilitates transitions between larger main lines and smaller branches without separate reducers.
• ✅ NPT Female Threads: Precision-machined threads on all outlets for a secure, leak-resistant seal using standard pipe sealants.
• ✅ Black Coating: Oil-coated to reduce oxidation during storage and handling (not for direct exposure to corrosive environments).
• ✅ Standards Compliance: Meets ASME B16.3 and B1.20.1 for dimensional and threading consistency.

Technical Specifications

• Material: Black Malleable Iron (ASTM A197)
• Size: 1-1/2" x 3/4" x 1-1/2"
• Connection Type: Female NPT x Female NPT x Female NPT
• Standards: ASME B16.3, ANSI B1.20.1

Installation Notes

Threaded pipe fittings should be installed using compatible thread sealant or PTFE tape to ensure joint integrity. Apply torque with properly sized pipe wrenches to avoid thread distortion. Confirm that the reducing outlet is positioned to accommodate the required system flow direction and configuration. Not intended for use in potable water systems unless certified and coated accordingly.

Common Applications

Frequently used in natural gas distribution, fire sprinkler lines, low-pressure steam, and hydronic heating systems. Also suitable for non-potable water and air systems in mechanical rooms, service branches, or process piping assemblies.

Material Note

Black malleable iron fittings are preferred in threaded steel systems due to their structural integrity and compatibility with ferrous pipe materials. They are not recommended for highly corrosive or buried installations without external protection.

The 1-1/2" x 3/4" x 1-1/2" Black Malleable Iron Tee delivers a reliable branch connection for high-integrity piping systems requiring standardized NPT components. Its cast construction and dimensional precision make it a dependable fitting for mechanical, gas, and utility infrastructure applications.