DELPHI FITTINGS
Part Number: FS2601
SAE ORFS Male x NPTF Pipe Male Branch Tee
Product Overview
The Delphi Fittings Part FS2601 is a branch tee adapter designed to integrate different hydraulic connection standards within a single junction. This fitting typically features two male NPTF (National Pipe Taper Fuel / Dryseal) pipe threads on the straight-through 'run' portion and a male SAE O-Ring Face Seal (ORFS) connection with its distinctive flat face and O-ring groove on the 90-degree branch. This configuration allows a primary fluid line using NPTF connections to have an ORFS branch take-off, which is ideal for connecting components or lines requiring the superior sealing capabilities of ORFS, such as high-vibration or high-pressure circuits. Manufactured from high-quality carbon steel and zinc-plated for corrosion resistance, the FS2601 tee provides a robust and reliable solution for complex hydraulic plumbing.
Key Features & Specifications
| Material | High-Grade Carbon Steel |
|---|---|
| Run End 1 Configuration | Male NPTF Pipe (Dryseal) (conforming to ANSI B1.20.3 / SAE J476) |
| Run End 2 Configuration | Male NPTF Pipe (Dryseal) (conforming to ANSI B1.20.3 / SAE J476) |
| Branch End Configuration | Male SAE O-Ring Face Seal (ORFS) (conforming to SAE J1453 / ISO 8434-3) |
| Body Style | Tee Adapter, typically forged for strength, with hexagonal (hex) features or flats for secure wrench engagement. |
| Sealing Mechanism | NPTF Male Ends (Run): Achieve a metal-to-metal seal on the tapered Dryseal threads when mated with female NPTF ports. If connecting to standard NPT female ports, the use of a compatible thread sealant on the male NPTF threads is recommended. ORFS Male End (Branch): Utilizes an elastomeric O-ring (seated in the groove on the male ORFS face) which compresses against the flat face of the mating female ORFS swivel fitting, creating a high-integrity static face seal. |
| Corrosion Protection | Standard Zinc Plating for enhanced durability and resistance to environmental corrosion. |
| Primary Function | To create a 90-degree branch with a male ORFS connection from a main line that has female NPTF ports on both run ends, allowing for the integration of an ORFS line or component. |
| Working Pressure | Suitable for high-pressure hydraulic systems. Specific pressure ratings depend on the size of the fitting, the application conditions, and the integrity of the seals. |
| O-Ring Material (for ORFS end) | Typically Buna-N (Nitrile) 90 Durometer as standard. Viton® (FKM) or other materials available upon request for specific fluid or temperature compatibility. The O-ring is supplied with the ORFS end. |
Commonly Available Sizes (Part #FS2601 Series)
Delphi Fittings offers the FS2601 SAE ORFS Male x NPTF Pipe Male Branch Tee in various common size combinations. Sizes are typically specified as Run x Run x Branch.
Examples include (Male NPTF Run x Male NPTF Run x Male ORFS Branch):
- FS2601-04-04-04: 1/4" NPTF Male x 1/4" NPTF Male (Run) x 1/4" (-04) ORFS Male (Branch)
- FS2601-06-06-06: 3/8" NPTF Male x 3/8" NPTF Male (Run) x 3/8" (-06) ORFS Male (Branch)
- FS2601-08-08-08: 1/2" NPTF Male x 1/2" NPTF Male (Run) x 1/2" (-08) ORFS Male (Branch)
- FS2601-08-08-06: 1/2" NPTF Male x 1/2" NPTF Male (Run) x 3/8" (-06) ORFS Male (Branch) (Reducing Branch)
Note: Each ORFS male end includes an appropriate O-ring. For unlisted size combinations, specific material requirements (e.g., stainless steel options), or other custom needs, please contact our sales team.
Applications
The Part FS2601 SAE ORFS Male x NPTF Pipe Male Branch Tee is ideal for:
- Creating an ORFS branch line from a main hydraulic or pneumatic line that uses NPTF connections. This is particularly useful for adding components that benefit from the superior sealing of ORFS, such as in high-vibration areas or critical connections.
- Adding test points, pressure gauges (with a female ORFS connection), or auxiliary hydraulic circuits to an existing NPTF-based system.
- Use in industrial machinery, mobile equipment, and manufacturing systems where a reliable T-junction with mixed thread types is required.
- Applications where the NPTF Dryseal connection is preferred for the run ends, and the ORFS branch offers enhanced sealing performance or zero-clearance assembly for the tapped-off line.
Installation & Usage Guidelines
- Ensure all NPTF male threads, the ORFS male flat face and O-ring groove, and all mating port/fitting surfaces are meticulously clean, undamaged, and free from any contaminants.
- Verify that the O-ring for the ORFS branch end is the correct size and material for the application. Ensure the O-ring is correctly lubricated with a system-compatible fluid.
- Carefully install the lubricated O-ring into the groove on the ORFS male branch face of the adapter.
- For the NPTF male run ends, apply a suitable thread sealant (such as PTFE tape or compatible pipe dope) to the threads, especially if mating with standard NPT female ports. Thread the run ends into the mating female NPTF or NPT ports.
- Orient the tee so the ORFS branch faces the desired direction. Tighten the NPTF run end connections to the appropriate specification.
- Align the male ORFS branch end of the adapter with the mating female ORFS swivel fitting or prepared tube end. Hand-tighten the ORFS swivel nut until the flat faces make contact and the O-ring is engaged.
- Use appropriate wrenches to tighten the ORFS connection. While holding the tee body stationary, tighten the female ORFS swivel nut to the manufacturer's recommended torque value or by using the "Flats From Wrench Resistance" (FFWR) method if specified.
- Always use backup wrenches on the tee body and mating components during tightening to prevent distortion or damage.
Why Choose Delphi Fittings Part FS2601?
- Versatile Branching Solution: Allows for the integration of a high-performance ORFS branch into a system primarily using NPTF threaded connections.
- Superior ORFS Sealing on Branch: The O-Ring Face Seal on the branch offers an exceptionally reliable, leak-free connection, ideal for critical take-offs.
- Reliable NPTF Run Connections: The NPTF male ends provide robust tapered thread seals for the main line.
- High-Pressure Capability: Engineered to withstand the demanding pressures of modern hydraulic systems.
- Durable Carbon Steel Construction: Manufactured from high-grade carbon steel for excellent strength and longevity in industrial environments.
- Enhanced Corrosion Resistance: Standard zinc plating provides robust protection against rust and other environmental corrosive factors.
- Full Adherence to Industry Standards: Meets SAE J1453 (ORFS) and ANSI B1.20.3/SAE J476 (NPTF) specifications.
- Quality-Assured Manufacturing: Produced under Delphi Fittings' rigorous ISO 9001:2015 certified quality management system.
Get a Quote for Part FS2601 - SAE ORFS Male x NPTF Pipe Male Branch Tee
For creating reliable ORFS branches from NPTF main lines, offering superior sealing and durability, the Part FS2601 tee is an excellent choice for your hydraulic systems. Contact Delphi Fittings today for competitive wholesale pricing, bulk order information, and expert technical support.
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