DELPHI FITTINGS
Part Number: 2705-SS
NPTF Female Pipe x 37° JIC Bulkhead Straight Adapter (316 Stainless Steel)
Product Overview
The Delphi Fittings Part 2705-SS is a specialized bulkhead straight adapter designed to transition between a JIC connection on one side of a panel and an NPTF connection on the other. This fitting features a male 37° JIC flare end (typically for external connection to a female JIC swivel/tube) which passes through the bulkhead and is secured with a locknut. The other end, inside the panel, is a female NPTF (Dryseal) pipe thread, designed to connect to a male NPTF pipe or fitting. This adapter is ideal for creating a secure, through-panel connection where different hydraulic thread standards need to be interfaced. Manufactured from corrosion-resistant 316 stainless steel for demanding environments, it ensures reliability in various hydraulic applications.
Key Features & Specifications
| Material | 316 stainless steel |
|---|---|
| End 1 (Bulkhead/External) | Male 37° JIC Flare (per SAE J514 / ISO 8434-2) |
| End 2 (Internal) | Female NPTF Pipe (Dryseal) (per ANSI B1.20.3 / SAE J476) |
| Body Style | Straight Bulkhead Adapter with hex features for wrenching and a separate locknut for the JIC end. |
| Sealing Mechanism | JIC End: Metal-to-metal seal on the 37° flare cone with mating female JIC swivel nut/flared tube. NPTF End: Metal-to-metal seal on the tapered Dryseal threads with a mating male NPTF fitting. Bulkhead Seal: Relies on the locknut compressing the fitting shoulder against the panel. For enhanced environmental sealing, an appropriate flat washer or sealant may be used by the user. |
| Included Component | Locknut for the JIC bulkhead end (e.g., Part #306 JIC Bulkhead Locknut). |
| Primary Function | To connect a female JIC swivel fitting or flared tube on one side of a panel to a male NPTF pipe or fitting on the other side, with the JIC end providing the secure bulkhead mounting. |
316 Stainless Steel for Corrosive Service
This 316 stainless steel bulkhead design is suited to JIC lines passing through panels or equipment walls where corrosion protection and a secure mechanical installation are important. Verify panel thickness, locknut requirements, and the mating JIC connection before ordering.
Commonly Available Sizes (Part #2705-SS Series)
Delphi Fittings offers the Part 2705-SS adapter in a range of common JIC and NPTF size combinations. Sizes are typically denoted by JIC dash numbers (for the male JIC bulkhead end) and NPTF nominal pipe sizes (for the female NPTF end).
Examples include (Male JIC Bulkhead x Female NPTF):
- 2705-04-02: 1/4" (7/16-20 UNF) JIC Male Bulkhead x 1/8" NPTF Female
- 2705-04-04: 1/4" (7/16-20 UNF) JIC Male Bulkhead x 1/4" NPTF Female
- 2705-06-04: 3/8" (9/16-18 UNF) JIC Male Bulkhead x 1/4" NPTF Female
- 2705-06-06: 3/8" (9/16-18 UNF) JIC Male Bulkhead x 3/8" NPTF Female
- 2705-08-08: 1/2" (3/4-16 UNF) JIC Male Bulkhead x 1/2" NPTF Female
- 2705-10-08: 5/8" (7/8-14 UNF) JIC Male Bulkhead x 1/2" NPTF Female
- 2705-12-12: 3/4" (1-1/16-12 UNF) JIC Male Bulkhead x 3/4" NPTF Female
Note: The fitting includes a corresponding locknut for the JIC bulkhead end. For unlisted size combinations or specific requirements, please contact our sales team.
Applications
The Part 2705-SS NPTF Female x JIC Bulkhead Straight Adapter is crucial for:
- Interfacing JIC hydraulic lines, typically from outside an enclosure or panel, with NPTF-threaded components (such as valves, manifolds, pipes, or sensors) located inside the enclosure.
- Providing a fixed, secure connection point on a panel that transitions fluid lines from JIC standard to female NPTF standard.
- Use in control panels, machinery guards, vehicle chassis, and any application requiring a robust, through-barrier connection between these two common hydraulic thread types.
- System retrofits or integrations where components with differing thread standards need to be connected across a bulkhead.
Installation & Usage Guidelines
- Prepare the panel by drilling or punching an appropriately sized hole to accommodate the JIC male threaded body of the adapter.
- Ensure the panel surface around the hole is clean and flat.
- Insert the JIC male end of the adapter through the hole from the side that will house the NPTF connection (typically considered the "internal" side).
- Secure the adapter to the panel by sliding the provided locknut over the JIC male threads (on the "external" side) and tightening it firmly against the panel surface. Use a wrench on the adapter's hex body to prevent it from rotating during tightening.
- Connect the female NPTF end of the adapter to a mating male NPTF pipe or fitting. While NPTF is designed as a Dryseal thread, the use of a compatible thread sealant on the male NPTF threads is often recommended for high-pressure applications or if mating with standard NPT male threads to ensure a leak-proof connection.
- Connect the male JIC flare end (now on the "external" side of the panel) to a female JIC swivel nut on a hose or tube. Ensure all JIC sealing surfaces (flare and cone) are clean and free from damage. Apply a light coat of system-compatible lubricant to the threads of the female JIC swivel nut (not the flare sealing surface) and tighten to the recommended torque.
Why Choose Delphi Fittings Part 2705-SS?
- Effective Thread Transition: Allows for a seamless and secure through-panel transition between JIC (external) and female NPTF (internal) thread standards.
- Reliable Dual Sealing: Combines the proven JIC 37° flare metal-to-metal seal with the robust NPTF Dryseal tapered thread for dependable connections.
- Secure Panel Mounting: The bulkhead design with an included locknut ensures a stable and fixed connection point on any panel or enclosure.
Get a Quote for Part 2705-SS - NPTF Female Pipe x 37° JIC Bulkhead Straight Adapter
For reliable through-panel connections that transition from an external JIC line to an internal female NPTF port, the Part 2705-SS adapter is an ideal and robust solution. Contact Delphi Fittings for wholesale pricing, bulk order information, and expert technical support.
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