DELPHI FITTINGS
Part #: 1704 / NB6890
37° JIC Male x Code 61 Flange 90° Elbow
Product Overview
The Delphi Fittings Part 1704 (also referenced as NB6890) is a 90° elbow flange head adapter, robustly designed to create a secure, right-angle connection between a SAE Code 61 flange port and a JIC (37° flare) hydraulic line. This fitting features a Code 61 flange head with an O-ring groove on one end, and a male JIC 37° flare on the other, with the two ends oriented at a 90-degree angle. It is intended for use with a Code 61 split flange kit (comprising two halves, bolts, and washers) or a captive flange, which effectively clamps the flange head to the port face, compressing the O-ring to ensure a reliable, high-pressure seal. The male JIC end facilitates straightforward connection to female JIC swivel fittings on hydraulic hoses or tubes. Constructed from high-quality carbon steel and zinc-plated for enhanced corrosion resistance, this adapter conforms to SAE J518 (for the flange end) and SAE J514 (for the JIC end) standards, ensuring dependable performance in demanding hydraulic systems that require a 90-degree directional change at the flange connection point.
Key Features & Specifications
| Material | High-Grade Carbon Steel |
|---|---|
| End 1 Configuration | Male 37° JIC Flare (conforming to SAE J514 / ISO 8434-2) |
| End 2 Configuration | SAE Code 61 Flange Head (conforming to SAE J518 / ISO 6162-1) |
| Angle | 90 Degrees |
| Body Style | 90° Elbow Flange Head Adapter, typically forged for strength, with hex or flats for orientation during installation. |
| Sealing Mechanism | JIC End: Achieves a metal-to-metal seal on the 37° flare cone. Flange End: Utilizes an elastomeric O-ring (seated in the groove on the flange head) which compresses against the flat face of the mating Code 61 port, secured by a split or captive flange kit. |
| Corrosion Protection | Standard Zinc Plating for enhanced durability and resistance to environmental corrosion. |
| Primary Function | To provide a 90-degree, leak-proof connection from a SAE Code 61 flange port to a female JIC swivel fitting or flared tube, facilitating a right-angle take-off for hydraulic lines. |
| Working Pressure | Suitable for standard duty high-pressure hydraulic systems as defined by SAE Code 61 (typically ranging from 3000-5000 PSI depending on size). |
| O-Ring Material (for Flange end) | Typically Buna-N (Nitrile) 90 Durometer as standard. Viton® (FKM) or other materials available upon request. The O-ring is supplied with the fitting. |
Commonly Available Sizes (Part #1704 / NB6890 Series)
Delphi Fittings offers the 37° JIC Male x Code 61 Flange 90° Elbow in a variety of common JIC and Code 61 flange sizes.
Examples include (Male JIC x Code 61 Flange Size):
- 1704-08-08 / NB6890-08-08: 1/2" (-08) JIC Male x 1/2" (-08) Code 61 Flange
- 1704-10-10 / NB6890-10-10: 5/8" (-10) JIC Male x 5/8" (-10) Code 61 Flange
- 1704-12-12 / NB6890-12-12: 3/4" (-12) JIC Male x 3/4" (-12) Code 61 Flange
- 1704-16-16 / NB6890-16-16: 1" (-16) JIC Male x 1" (-16) Code 61 Flange
- 1704-20-20 / NB6890-20-20: 1-1/4" (-20) JIC Male x 1-1/4" (-20) Code 61 Flange
Note: Each flange head includes an appropriate O-ring. This adapter requires a separate Code 61 split flange kit (e.g., Part 61SF-KIT) or captive flange and bolts for proper installation. For unlisted size combinations, specific material requirements (e.g., stainless steel options), or other custom needs, please contact our sales team.
Applications
The Part 1704 / NB6890 JIC Male x Code 61 Flange 90° Elbow is essential for:
- Connecting JIC hydraulic lines (such as hoses or tubes with female JIC swivel ends) to SAE Code 61 flange ports on hydraulic components like pumps, motors, valves, cylinders, and manifolds, where a 90-degree change in line direction is necessary for optimal routing or component placement.
- Integrating JIC standard lines into systems that primarily utilize Code 61 flange connections, especially when space constraints demand an immediate right-angle turn from the flange port.
- Use in mobile equipment (e.g., construction, agricultural machinery), industrial machinery, and various hydraulic systems where a secure and reliable angled transition from a flange port to a JIC connection is required.
- Applications that benefit from the robust, bolted nature of flange connections for resistance to vibration and high pressures, combined with the versatility of a JIC flare connection at a 90-degree angle.
Installation & Usage Guidelines
- Thoroughly inspect the Code 61 flange head, O-ring groove, O-ring, mating port surface, and the JIC male flare to ensure all surfaces are clean, undamaged, and free from any contaminants or debris.
- Verify that the O-ring is the correct size and material for the application and is properly lubricated with a system-compatible fluid.
- Carefully install the lubricated O-ring into the groove on the flange head of the adapter.
- Position the flange head against the mating Code 61 port face, ensuring the elbow is oriented to the desired 90-degree direction for the JIC connection. Place the Code 61 split flange halves (or captive flange) behind the adapter's flange head.
- Insert the four mounting bolts (typically with lock washers) through the flange halves/captive flange and into the tapped holes in the port.
- Lightly snug all four bolts. Then, progressively and evenly tighten the bolts in a diagonal or cross-pattern sequence to the manufacturer's recommended torque specification for the Code 61 flange size and bolt grade. This ensures even O-ring compression.
- Connect the male JIC flare end of the elbow to a mating female JIC swivel fitting. Ensure the 37° flare surfaces align correctly. Lightly lubricate the threads of the JIC swivel nut (not the flare sealing surface itself). Tighten the JIC swivel nut to the recommended torque for the specific JIC size.
- Always use appropriate backup wrenches on the elbow body (if features allow) and mating components during the tightening process to prevent distortion or damage.
Why Choose Delphi Fittings Part 1704 / NB6890?
- Reliable 90° High-Pressure Connection: Effectively combines the robust, bolted Code 61 flange seal with the widely used JIC 37° flare connection at a critical 90-degree angle.
- Superior Leak-Resistant Design: The O-ring seal on the flange end provides excellent protection against leakage in demanding hydraulic applications.
- Adherence to Industry Standards: Meets SAE J518 (Code 61) and SAE J514 (JIC) specifications, ensuring compatibility and interchangeability with other standard components.
- Optimized Hydraulic Routing: Enables efficient changes in fluid direction from flange ports, crucial for compact or complex system layouts.
- Durable Carbon Steel Construction: Manufactured from high-grade carbon steel for outstanding strength and longevity in industrial and mobile hydraulic environments.
- Enhanced Corrosion Resistance: Standard zinc plating provides robust protection against environmental factors, extending the fitting's service life.
- Quality-Assured Manufacturing: Produced under Delphi Fittings' rigorous ISO 9001:2015 certified quality management system, guaranteeing consistent high quality and performance.
Get a Quote for Part 1704 / NB6890 - 37° JIC Male x Code 61 Flange 90° Elbow
For robust and reliable 90-degree connections adapting Code 61 flange ports to JIC flare systems, the Part 1704 / NB6890 elbow is an industry-standard solution designed for performance and durability. Contact Delphi Fittings today for wholesale pricing, bulk order information, and expert technical support for your hydraulic fitting needs.
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