DELPHI FITTINGS
Part Number: 6425-SS
SAE ORB Female x SAE ORB Female Coupler (Stainless Steel)
Product Overview
The Delphi Fittings Part 6425-SS is a straight coupler, often referred to as a female union, meticulously manufactured from high-quality stainless steel (typically Grade 316 SS). This fitting is specifically designed to connect two male SAE O-Ring Boss (ORB) fittings or components of the same size in a direct, in-line configuration. It features female SAE O-Ring Boss threads on both ends, each precision-machined with the correct chamfer to effectively receive and seal with the O-ring from a mating male ORB fitting. The use of stainless steel provides exceptional corrosion resistance, making this coupler an ideal choice for demanding hydraulic applications within marine environments, chemical processing plants, food and beverage facilities, pharmaceutical industries, or any system where integrity, purity, and long-term resistance to corrosive media are critical.
Key Features & Specifications
| Material | High-Grade Stainless Steel (Typically 316 SS for optimal corrosion and chemical resistance) |
|---|---|
| End 1 Configuration | Female SAE O-Ring Boss (ORB) (port geometry conforming to SAE J1926-1 / ISO 11926-1) |
| End 2 Configuration | Female SAE O-Ring Boss (ORB) (port geometry conforming to SAE J1926-1 / ISO 11926-1) |
| Body Style | Straight Coupler / Female Union, typically with a central hexagonal (hex) section or flats for secure wrench engagement during installation. |
| Sealing Mechanism | Both female ORB ends are designed to seal effectively with the O-ring provided on the mating male SAE ORB fittings. The coupler itself provides the correctly machined port chamfer which ensures proper O-ring compression and sealing. |
| Corrosion Protection | Inherent to the stainless steel material; may also be passivated to further enhance surface integrity and corrosion resistance. |
| Primary Function | To provide a straight, high-integrity, and corrosion-resistant connection between two male SAE O-Ring Boss (ORB) fittings or components of the same thread size. |
| Working Pressure | Suitable for high-pressure hydraulic systems. The working pressure will be determined by the rating of the male ORB fittings and their respective O-rings being connected into this coupler. |
Commonly Available Sizes (Part #6425-SS Series)
Delphi Fittings offers the 6425-SS Stainless Steel ORB Female x ORB Female Coupler in a variety of common ORB sizes. Both female ORB ends are of the same size, designed to accept the corresponding male ORB fitting.
Examples include (Female ORB x Female ORB, for connecting two male ORB fittings of the same size):
- 6425-04-SS: Accepts two -04 (7/16-20 UNF) Male ORB fittings
- 6425-06-SS: Accepts two -06 (9/16-18 UNF) Male ORB fittings
- 6425-08-SS: Accepts two -08 (3/4-16 UNF) Male ORB fittings
- 6425-10-SS: Accepts two -10 (7/8-14 UNF) Male ORB fittings
- 6425-12-SS: Accepts two -12 (1-1/16-12 UNF) Male ORB fittings
- 6425-16-SS: Accepts two -16 (1-5/16-12 UNF) Male ORB fittings
Note: This coupler is designed to be used with standard male ORB fittings, which provide their own O-rings (Viton® O-rings are recommended for stainless steel applications). For unlisted sizes or specific requirements, please contact our sales team.
Applications
The Part 6425-SS Stainless Steel ORB Female Coupler is essential for:
- Joining two male ORB ended hydraulic hoses, rigid tubes, or fixed components (like valves or manifolds with male ORB outlets) in a straight, in-line configuration within stainless steel systems.
- Extending an existing hydraulic line where both ends to be joined are male ORB connections and corrosion resistance is paramount.
- Critical applications in marine and offshore installations, chemical processing facilities, food and beverage manufacturing, pharmaceutical production, and other industries where stainless steel's resistance to corrosion and contamination is vital.
- Creating modular hydraulic assemblies or facilitating repairs that involve connecting two male ORB fittings.
Installation & Usage Guidelines
- Thoroughly inspect the female ORB ports of the 6425-SS coupler and the threads and O-rings of the mating male ORB fittings. Ensure all surfaces are meticulously clean, undamaged, and free from any contaminants or debris.
- Verify that the O-ring material on the male ORB fittings (Viton® is recommended for stainless steel applications) is appropriate for the specific system fluid, temperature, and pressure. Ensure the O-rings are correctly installed on the male fittings and properly lubricated with a system-compatible fluid or O-ring lubricant.
- Thread one male ORB fitting by hand into one female ORB end of the coupler until the O-ring makes initial contact and the shoulder of the male fitting seats.
- Similarly, thread the second male ORB fitting by hand into the other female ORB end of the coupler until its O-ring makes contact and the shoulder seats.
- Use a wrench on the central hex or flats of the coupler body to hold it stationary. Use appropriate wrenches to tighten both male ORB fittings into the coupler to the manufacturer's recommended torque specification for the ORB size and stainless steel material.
- When working with stainless steel fittings, it is crucial to apply a suitable thread lubricant or anti-seize compound (compatible with stainless steel) to the male ORB threads before assembly. This helps to prevent galling, ensure smooth tightening, and allow for easier disassembly if required in the future.
Why Choose Delphi Fittings Part 6425-SS?
- Superior Corrosion Resistance: Manufactured from high-grade stainless steel (typically 316 SS), making it ideal for operation in harsh, corrosive, or sanitary environments where standard materials would fail.
- High-Integrity ORB Sealing: Both female ports are precision-machined to SAE J1926 standards, ensuring a reliable, leak-proof seal when used with standard male ORB fittings and their O-rings.
- Durable Straight Connection: Provides a robust and secure in-line union for connecting two male ORB fittings of the same size, maintaining system integrity under pressure.
- Extensive Chemical and Temperature Tolerance: The stainless steel construction offers broad compatibility with a wide variety of hydraulic fluids and can withstand extreme operating temperatures.
- Full Adherence to Industry Standards: Port geometry meets SAE J1926 (ORB) specifications, ensuring proper fit, function, and global interchangeability.
- Quality-Assured Manufacturing: Produced under Delphi Fittings' rigorous ISO 9001:2015 certified quality management system, guaranteeing consistent high quality and dependable performance.
Get a Quote for Part 6425-SS - Stainless Steel SAE ORB Female x ORB Female Coupler
For providing robust, corrosion-resistant, and leak-proof straight connections between two male ORB fittings in your critical hydraulic systems, the Part 6425-SS stainless steel coupler is an outstanding choice. Contact Delphi Fittings today for competitive wholesale pricing, bulk order information, and expert engineering support.
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