DELPHI FITTINGS
Part Number: FS2404-SS
SAE ORFS Male x NPTF Pipe Male Adapter (Stainless Steel)
Product Overview
The Delphi Fittings Part FS2404-SS is a high-quality straight adapter designed to bridge two different sealing technologies: SAE O-Ring Face Seal (ORFS) and National Pipe Tapered Fuel (NPTF). This fitting features a male ORFS end and a male NPTF end, both manufactured from corrosion-resistant stainless steel (typically 316 SS). It allows for the secure, leak-proof connection of a female ORFS swivel hose or tube to a standard female NPTF port, making it indispensable for integrating superior ORFS connections into systems with existing NPTF ports, especially in harsh or high-purity environments.
Key Features & Specifications
| Material | High-Grade Stainless Steel (Typically 316 SS) |
|---|---|
| End 1 Configuration | Male O-Ring Face Seal (ORFS) (per SAE J1453 / ISO 8434-3) |
| End 2 Configuration | Male National Pipe Tapered Fuel (NPTF) (per ANSI B1.20.3) |
| Body Style | Straight Adapter with Hex Body for wrench tightening. |
| Sealing Mechanism | ORFS End: Elastomeric O-ring on a flat face. NPTF End: Metal-to-metal seal on tapered threads (sealant recommended). |
| Corrosion Protection | Excellent inherent corrosion resistance from stainless steel. |
| Primary Function | To connect a female ORFS swivel fitting to a female NPTF threaded port. |
| Working Pressure | Suitable for high-pressure hydraulic systems. Note: The NPTF connection is often the pressure-limiting factor. Always verify ratings. |
Commonly Available Sizes (Part #FS2404-SS Series)
This adapter is available in a variety of common size combinations to meet diverse application needs.
Examples include (Male ORFS x Male NPTF):
- FS2404-04-04-SS: 1/4" ORFS (9/16-18 Thread) x 1/4" NPTF
- FS2404-06-06-SS: 3/8" ORFS (11/16-16 Thread) x 3/8" NPTF
- FS2404-08-08-SS: 1/2" ORFS (13/16-16 Thread) x 1/2" NPTF
- FS2404-12-12-SS: 3/4" ORFS (1-3/16-12 Thread) x 3/4" NPTF
- FS2404-16-16-SS: 1" ORFS (1-7/16-12 Thread) x 1" NPTF
Note: For unlisted size combinations or specific requirements, please contact our sales team.
Applications
The FS2404-SS adapter is critical for applications that require upgrading or integrating different connection types in corrosive environments:
- Connecting modern, leak-resistant ORFS hose assemblies to older equipment or manifolds that use traditional NPTF ports.
- Integrating components like pressure gauges, sensors, or valves with NPTF threads into a stainless steel ORFS hydraulic system.
- Used extensively in marine, chemical, oil and gas, and food processing industries where both corrosion resistance and reliable sealing are essential.
- Ideal for reducing potential leak points by providing a direct, one-piece transition between the two thread types.
Installation & Usage Guidelines
- For the ORFS End: Inspect the flat sealing face and O-ring for damage. Lubricate the O-ring with a compatible fluid and ensure it is properly seated. Thread into the female ORFS swivel and tighten to the manufacturer's recommended torque.
- For the NPTF End: Apply a suitable thread sealant (like PTFE tape or a liquid sealant compatible with stainless steel) to the male NPTF threads, leaving the first 1-2 threads bare to prevent system contamination.
- Thread the NPTF end into the female port until finger-tight, then use a wrench to tighten an additional 1 to 2 turns. Do not over-tighten, as this can crack the female port.
- Use a backup wrench on the fitting's hex to prevent the entire adapter from turning while tightening the ORFS swivel nut.
Why Choose Delphi Fittings Part FS2404-SS?
- Versatile Connection: Seamlessly bridges the gap between the superior ORFS sealing system and the widely used NPTF thread standard.
- Leak-Proof Performance: The ORFS side provides an elastomeric seal that is highly resistant to leakage from vibration, shock, and pressure spikes.
- Ultimate Corrosion Resistance: Constructed from 316-grade stainless steel for maximum durability and service life in harsh chemical, marine, or washdown environments.
- Simplified Plumbing: Provides a robust, one-piece solution, reducing the need for multiple adapters and potential leak paths.
- Standard Compliance: Meets or exceeds SAE J1453 (ORFS) and ANSI B1.20.3 (NPTF) standards for guaranteed performance and interchangeability.
Get a Quote for Part FS2404-SS - Stainless ORFS to NPTF Adapter
Integrate the best of both worlds into your demanding hydraulic systems with the FS2404-SS adapter. Contact Delphi Fittings today for wholesale pricing, availability, and expert support for your application.
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