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

BLK MAL TEE 1-1/2" x 1-1/2" x 1" – Heavy-Duty Black Malleable Iron Tee for Branch Connections

The BLK MAL TEE 1-1/2" x 1-1/2" x 1" (VBGF 7857) is a three-way black malleable iron tee engineered for precision alignment in gas, oil, steam, and air systems. This reducing tee is constructed to ANSI standards and is ideal for creating 90-degree branch connections within threaded piping assemblies.

Product Features

• ✅ Material: Black malleable iron castings conforming to ASTM A197, suitable for mechanical strength and ductility under pressure.
• ✅ Thread Type: All ends feature National Pipe Thread (NPT) tapered threads per ANSI B1.20.1 for secure, leak-resistant joints.
• ✅ Configuration: Straight-through 1-1/2" run with a reduced 1" branch outlet—ideal for branching off to a smaller line.
• ✅ Pressure Rating: UL/FM rated and typically capable of handling up to 150 PSI for steam or 300 PSI for water, air, or gas.
• ✅ Finish: Black phosphate coating helps prevent corrosion in dry applications.

Technical Specifications

• Nominal Sizes: 1-1/2" x 1-1/2" x 1"
• Material Grade: ASTM A197 malleable iron
• Standards Compliance: Meets ANSI B16.3 and B16.14 specifications
• End Connections: NPT threaded (female x female x female)

Installation Considerations

This tee fitting is designed for use in threaded pipe systems. Proper thread engagement is critical for maintaining system integrity. Apply PTFE tape or compatible thread sealant to the male pipe threads prior to assembly. Ensure alignment is accurate to prevent cross-threading or mechanical stress.

Common Applications

The reducing tee is frequently used in branch line applications within commercial and industrial gas distribution systems, fire protection lines (dry systems), and hydronic heating loops. It can also be applied in HVAC piping configurations and low-pressure steam service where malleable iron is specified.

Code Compliance and Safety

Black malleable iron fittings are commonly approved for use in mechanical systems subject to local and national code requirements, including IAPMO and ASME standards. Always consult the Authority Having Jurisdiction (AHJ) to confirm acceptability in regulated installations.

The BLK MAL TEE 1-1/2" x 1-1/2" x 1" provides robust, code-compliant branching in threaded iron systems where reliability and strength are essential. This fitting delivers the consistency professionals require in high-demand environments.