DELPHI FITTINGS
Product Overview
The Delphi Fittings Part 4501 is a versatile 90° elbow adapter designed to connect a low-pressure hose to a female NPTF (National Pipe Taper Fuel / Dryseal) port at a right angle. This fitting features a beaded hose barb on one end, engineered to provide a secure grip for a hose secured with an external clamp. The raised bead offers a positive stop and an excellent shoulder for the clamp to tighten against, preventing hose slippage. The other end features a male NPTF thread for a reliable, tapered seal into standard pipe-threaded ports. Manufactured from high-quality carbon steel and zinc-plated for corrosion resistance, the 4501 adapter is a durable and cost-effective choice for a wide range of low-pressure fluid transfer applications requiring a directional change.
Key Features & Specifications
| Material | High-Grade Carbon Steel |
|---|---|
| End 2 Configuration | Male NPTF Pipe (Dryseal) (conforming to ANSI B1.20.3 / SAE J476) |
| Angle | 90 Degrees |
| Body Style | 90° Elbow Adapter with hex features for wrench tightening. |
| Plating & Finish | Cr3+ Trivalent Zinc Clear (ASTM B117 salt spray tested) |
| Reference Standard | SAE J1231 (Formed Tube Hose Fittings / Beaded Barbs) |
| Sealing Mechanism | Smooth Beaded Retention Rib Compressed with Hose Clamp against Flexible Hose I.D. |
Commonly Available Sizes (Part #4501 Series)
Delphi Fittings manufactures standard and custom dash sizes for Part 4501. Engineering specifications, dimensions, and thread/flange sizes are detailed below:
| Delphi Part # | End 1 Specification | End 2 Specification | Hex / Flange Size |
|---|---|---|---|
| 4501-04-04 | 1/4" Hose Barb | 1/4" NPTF Male | Standard |
| 4501-06-04 | 3/8" Hose Barb | 1/4" NPTF Male | Standard |
| 4501-06-06 | 3/8" Hose Barb | 3/8" NPTF Male | Standard |
| 4501-08-08 | 1/2" Hose Barb | 1/2" NPTF Male | Standard |
| 4501-12-12 | 3/4" Hose Barb | 3/4" NPTF Male | Standard |
Need non-standard dash sizes, custom flange drops, special port configurations, or alternative material grades (AISI 316 Stainless / Brass)? Delphi manufactures custom components to client blueprints.
Specific Applications & Hydraulic Circuit Routing
Part 4501 fittings provide reliable fluid power conveyance in demanding mobile and stationary equipment circuits:
- Hydraulic Suction & Reservoir Lines: Facilitates smooth, laminar fluid intake from hydraulic reservoirs into main pumps using Part 4501.
- Low-Pressure Return & Drain Circuits: Ensures secure, non-slip hose retention on system return manifolds, case drains, and cooling lines.
- Engine Coolant & Transmission Cooling: Widely used in heavy equipment and mobile power cooling loops requiring reliable beaded hose connections.
Installation & Assembly Guidance
- Hose I.D. Compatibility: Ensure the flexible suction or return hose inside diameter matches the nominal beaded barb specification.
- Clamp Positioning: Slide hose fully over the bead until seated, and position the hose clamp immediately behind the retention bead.
- Proper Clamp Torque: Tighten worm-drive or constant-tension T-bolt clamp to recommended torque without cutting the rubber jacket.
- Port Sealing Confirmation: Ensure the mating threaded end (NPTF or ORB) is torqued to standard specifications with proper thread sealant or lubricated O-ring.
Why Source Part 4501 from Delphi Fittings?
- Strict Dimensional Precision: CNC machined to exacting tolerances for 100% interchangeability with North American and international systems.
- ASTM B117 Salt Spray Corrosion Protection: Electroplated with eco-friendly Cr3+ trivalent zinc clear for extended service life in harsh operating environments.
- 100% Thread & Seal Inspection: Every production batch undergoes strict optical and mechanical gauge inspection before packaging.
- Factory-Direct OEM Supply: Direct manufacturer pricing, full mill test reports (MTR), and ISO 9001:2015 quality assurance from Yuhuan, China.
Get a Quote for Part 4501 - Beaded Hose Barb x NPTF Pipe Male 90° Elbow
Direct OEM container-load and distributor replenishment pricing, complete material test reports (MTR), and inspection samples available upon inquiry. Connect with our engineering sales team for rapid quotations and delivery schedules.
Complementary & Mating Hydraulic Fittings
Commonly paired with Part 4501 in hydraulic valve manifolds, power units, and industrial fluid power circuits:
