Part Number: 1602

Steel Branch Tee, NPSM Female Swivel x NPSM Female Swivel x NPTF Female

Product Overview

The Delphi Fittings Part 1602 is a versatile steel branch tee adapter. This fitting is typically configured with two female NPSM (National Pipe Straight Mechanical) swivel nuts on the straight-through 'run' portion and one female NPTF (National Pipe Taper Fuel / Dryseal) threaded port on the 90-degree branch. This specific design allows for the connection of three male NPT/NPTF threaded pipes or fittings, providing maximum flexibility for alignment and installation due to the dual NPSM swivel ends on the run. The female NPTF branch offers a secure Dryseal connection for components like gauges, sensors, or auxiliary lines. Manufactured from high-quality carbon steel and zinc-plated for robust corrosion resistance, the Part 1602 tee is an excellent choice for creating complex branched connections in hydraulic and pneumatic systems where ease of assembly and precise orientation are paramount.

Key Features & Specifications

Material	High-Grade Carbon Steel
Run End 1 Configuration	Female NPSM Pipe Swivel (National Pipe Straight Mechanical) (threads conforming to ANSI/ASME B1.20.1)
Run End 2 Configuration	Female NPSM Pipe Swivel (National Pipe Straight Mechanical) (threads conforming to ANSI/ASME B1.20.1)
Branch End Configuration	Female NPTF Pipe (Dryseal) (threads conforming to ANSI B1.20.3 / SAE J476)
Body Style	Tee Adapter with hexagonal (hex) features or flats for secure wrench engagement.
Sealing Mechanism	NPSM Female Swivel Ends (Run): NPSM threads are straight and do not seal on the threads themselves. Sealing is achieved when these connect to male NPT/NPTF fittings (seal on male tapered threads, requiring sealant) or specific male NPSM fittings with a sealing seat. The swivel nuts allow tightening without rotating the tee body. NPTF Female End (Branch): Forms a Dryseal (metal-to-metal) when mated with a male NPTF fitting. If connecting to a standard NPT male fitting, thread sealant on the male NPT threads is required for optimal sealing.
Corrosion Protection	Standard Zinc Plating for enhanced durability and resistance to environmental corrosion.
Primary Function	To provide a T-junction connecting three male NPT/NPTF fittings, with two female NPSM swivel ends on the run for maximum installation flexibility and one female NPTF end on the branch for a secure port.
Working Pressure	Suitable for a range of hydraulic and pneumatic systems. Specific pressure ratings depend on the size, application, and the integrity of the seals on the mating male NPT/NPTF threads.

Commonly Available Sizes (Part #1602 Series)

Delphi Fittings offers the Part 1602 Steel Branch Tee in various common nominal pipe size combinations. The sizes are typically specified as Run x Run x Branch.

Examples include (Female NPSM Swivel Run x Female NPSM Swivel Run x Female NPTF Branch):

1602-04-04-04: 1/4" NPSM Sw x 1/4" NPSM Sw (Run) x 1/4" NPTF Female (Branch)
1602-06-06-06: 3/8" NPSM Sw x 3/8" NPSM Sw (Run) x 3/8" NPTF Female (Branch)
1602-08-08-08: 1/2" NPSM Sw x 1/2" NPSM Sw (Run) x 1/2" NPTF Female (Branch)
1602-08-08-04: 1/2" NPSM Sw x 1/2" NPSM Sw (Run) x 1/4" NPTF Female (Branch) (Example with a reducing branch)

Note: This fitting is designed to connect to male NPT or NPTF fittings, which will provide the sealing surface for the NPSM swivel ends and the NPTF branch. For unlisted size combinations, specific material requirements, or other custom needs, please contact our sales team.

Applications

The Part 1602 Steel Branch Tee with dual NPSM swivels on the run is ideal for:

Creating a branched connection from a main line where both run connections to male NPT/NPTF pipes or fittings benefit significantly from swivel alignment, simplifying complex plumbing.
Adding a female NPTF ported component (such as a gauge, sensor, or valve with a male NPTF thread) as a branch from a line comprised of two male NPT/NPTF connections.
Use in hydraulic, pneumatic, and general industrial systems where easy orientation of multiple lines converging at a T-junction is critical for efficient assembly and maintenance.
Applications requiring a robust steel tee that offers both secure NPTF sealing on the branch and flexible NPSM swivel connections on the run.

Installation & Usage Guidelines

Ensure all NPSM female swivel threads, NPTF female threads, and all mating male NPT/NPTF threads and sealing surfaces are meticulously clean, undamaged, and free from any contaminants.
For all mating male NPT/NPTF fittings that will connect to this tee, apply a suitable thread sealant (such as PTFE tape or a compatible pipe dope) to their male threads. This is crucial for achieving leak-proof seals with both the NPSM swivel ends and the NPTF female branch.
Thread the male fittings into the respective female ports of the tee. The swivel nuts on the NPSM ends allow the tee body to be held stationary while each run connection nut is tightened independently. The NPTF branch will accept a male NPTF fitting.
Tighten all three connections to the appropriate specification to achieve secure, leak-proof seals. The swivel feature greatly aids in achieving proper orientation without inducing stress on the lines.
Always use appropriate backup wrenches on the tee's body (if hexed) and the mating components during the tightening process to prevent over-torquing or damage to the fittings.

Why Choose Delphi Fittings Part 1602?

Maximum Installation Flexibility: Dual NPSM female swivel ends on the run provide unparalleled ease of alignment and tightening for the main line connections, eliminating torsional stress.
Versatile Tee Configuration: Enables the connection of three male NPT/NPTF components with a secure female NPTF port on the branch.
Reliable Sealing (with Mating Parts): Designed to facilitate secure seals on the mating male NPT/NPTF tapered threads when appropriate sealant is used. The NPTF branch offers a Dryseal connection.
Durable Carbon Steel Construction: Manufactured from high-grade carbon steel for excellent strength and longevity in typical industrial, hydraulic, and pneumatic environments.
Enhanced Corrosion Resistance: Standard zinc plating provides robust protection against rust and other environmental corrosive factors.
Adherence to Industry Standards: NPTF and NPSM threads conform to relevant ANSI/ASME and SAE specifications, ensuring compatibility.
Quality-Assured Manufacturing: Produced under Delphi Fittings' rigorous ISO 9001:2015 certified quality management system.

Get a Quote for Part 1602 - Steel Branch Tee, NPSM Female Swivel x NPSM Female Swivel x NPTF Female

For versatile T-junctions offering maximum installation flexibility with dual swivel run ends and a secure female NPTF branch, the Part 1602 tee is an outstanding solution for your fluid power systems. Contact Delphi Fittings today for competitive wholesale pricing, bulk order information, and expert technical support.

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