DELPHI FITTINGS
Part Number: 6407-SS
SAE ORB Male x SAE ORB Male Union (Stainless Steel)
Product Overview
The Delphi Fittings Part 6407-SS is a straight union adapter meticulously crafted from high-quality stainless steel (typically Grade 316 SS). This fitting is specifically designed to connect two female SAE O-Ring Boss (ORB) ports of the same size in a direct, in-line configuration. It features male SAE O-Ring Boss threads, complete with O-ring grooves, on both ends. The use of stainless steel ensures exceptional corrosion resistance, making the 6407-SS union the 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 paramount.
Key Features & Specifications
| Material | High-Grade Stainless Steel (Typically 316 SS for superior corrosion and chemical resistance) |
|---|---|
| End 1 Configuration | Male SAE O-Ring Boss (ORB) (conforming to SAE J1926-1 / ISO 11926-1) |
| End 2 Configuration | Male SAE O-Ring Boss (ORB) (conforming to SAE J1926-1 / ISO 11926-1) |
| Body Style | Straight Union/Connector with a central hexagonal (hex) section for secure wrench engagement during installation. |
| Sealing Mechanism | Both ends utilize an elastomeric O-ring (Viton® recommended for stainless steel applications) which seals against the chamfered boss of the mating female ORB port, providing a highly reliable, leak-proof seal. |
| 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 female SAE O-Ring Boss (ORB) ports of the same thread size. |
| Working Pressure | Suitable for high-pressure hydraulic systems. Specific pressure ratings are dependent on the size of the union and the operational conditions. |
| O-Ring Material (for both ORB ends) | Viton® (FKM) is strongly recommended for stainless steel fittings to ensure compatibility with a wide range of fluids and temperatures. O-rings are typically supplied with the fitting. |
Commonly Available Sizes (Part #6407-SS Series)
Delphi Fittings offers the 6407-SS Stainless Steel ORB Male x ORB Male Union in a variety of common ORB sizes. Both male ORB ends are of the same size.
Examples include (Male ORB x Male ORB):
- 6407-04-SS: -04 (7/16-20 UNF) ORB Male x -04 (7/16-20 UNF) ORB Male
- 6407-06-SS: -06 (9/16-18 UNF) ORB Male x -06 (9/16-18 UNF) ORB Male
- 6407-08-SS: -08 (3/4-16 UNF) ORB Male x -08 (3/4-16 UNF) ORB Male
- 6407-10-SS: -10 (7/8-14 UNF) ORB Male x -10 (7/8-14 UNF) ORB Male
- 6407-12-SS: -12 (1-1/16-12 UNF) ORB Male x -12 (1-1/16-12 UNF) ORB Male
- 6407-16-SS: -16 (1-5/16-12 UNF) ORB Male x -16 (1-5/16-12 UNF) ORB Male
Note: Each ORB male end is supplied with an appropriate O-ring (Viton® recommended for stainless steel use). For unlisted sizes, specific material grade requirements (e.g., 316L), or other custom needs, please contact our sales team.
Applications
The Part 6407-SS Stainless Steel ORB Union is essential for:
- Connecting two hydraulic components that both feature female ORB ports, such as linking together manifolds, valve blocks, or extending fixed port connections in a straight line within systems requiring stainless steel.
- Use in environments where superior corrosion resistance is mandatory, including marine and offshore installations, chemical processing plants, food and beverage manufacturing equipment, and pharmaceutical production lines.
- Applications where a straight, high-integrity union between two ORB ports is necessary to maintain system purity or to withstand aggressive cleaning agents or process fluids.
- Ensuring long-term reliability and preventing leaks in critical hydraulic systems exposed to harsh conditions.
Installation & Usage Guidelines
- Thoroughly clean all ORB threads, O-ring grooves on both ends of the union, and the mating female ORB port surfaces. Ensure they are undamaged and entirely free from any particulate matter or contaminants.
- Verify that the O-ring material (Viton® is recommended for stainless steel applications) is correct for the specific system fluid, temperature, and pressure for both connections. Ensure the O-rings are correctly lubricated with a system-compatible fluid or an appropriate O-ring lubricant.
- Carefully install the lubricated O-rings onto both ORB male ends of the 6407-SS union, ensuring each is properly and evenly seated in its groove without being twisted, cut, or pinched.
- Thread one ORB male end of the union into the first female ORB port by hand until the O-ring makes initial contact with the port's chamfer and the fitting shoulder seats.
- Align and thread the other ORB male end of the union into the second female ORB port by hand until its O-ring makes contact and the shoulder seats.
- Use a wrench on the central hex of the union body to tighten both connections. If possible and practical, use backup wrenches on the mating components to prevent them from rotating. Tighten the union to the manufacturer's recommended torque specification for the ORB size and stainless steel material.
- When working with stainless steel fittings, applying a suitable thread lubricant or anti-seize compound (compatible with stainless steel) to the ORB threads is crucial to prevent galling during assembly and ensure proper makeup.
Why Choose Delphi Fittings Part 6407-SS?
- Exceptional Corrosion Resistance: Manufactured from high-grade stainless steel (typically 316 SS), providing maximum durability and an extended service life in the most demanding and corrosive environments.
- High-Integrity ORB Sealing on Both Ends: Utilizes the reliable SAE O-Ring Boss seal for both connections, ensuring superior leak-proof performance under high pressure, vibration, and impulse conditions.
- Durable Straight Connection: Provides a robust and direct in-line union between two female ORB ports, maintaining system integrity.
- Broad Chemical and Temperature Tolerance: Stainless steel construction offers a significantly wider range of compatibility with aggressive fluids and extreme operating temperatures compared to carbon steel alternatives.
- Full Adherence to Industry Standards: Meets SAE J1926 (ORB) specifications, ensuring proper fit, function, and global interchangeability with other standard ORB components.
- 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 6407-SS - Stainless Steel SAE ORB Male x SAE ORB Male Union
For superior corrosion resistance and highly reliable sealing when connecting two female ORB ports in a straight line, the Part 6407-SS stainless steel union is an excellent and durable choice for your critical hydraulic systems. Contact Delphi Fittings today for wholesale pricing, bulk order information, and expert engineering support.
Request a Quote Back to Stainless ORB Fittings