Parker 259IFHD-8-6 Brass Inverted 45 Flare Elbow

Product Description

The PARKER 259IFHD-8-6 is a brass inverted 45 degree flare elbow fitting designed for use in fluid and refrigeration line assemblies. It connects a 1/2 inch OD flared tube to a 3/8-18 male NPTF port, changing line direction by 45 degrees while maintaining a secure, leak-resistant joint. The inverted flare design seats against the mating surface to form a metal-to-metal seal without the need for thread sealant on the flare end. Rated to 750 psi maximum working pressure and 250 degrees F, this fitting suits demanding service conditions in HVAC, refrigeration, automotive, and hydraulic tubing applications. It is installed by licensed HVAC technicians, refrigeration mechanics, and plumbers working with flared copper or steel tubing systems.

This fitting is suited for residential and light commercial refrigeration and HVAC line sets, hydraulic tubing assemblies, and fuel or fluid transfer systems where a 45 degree directional change is required at a male NPTF port. The flare x MNPTF end configuration allows direct connection to threaded ports on valves, manifolds, compressors, and other equipment. It meets SAE J51 standards and carries UL listing, making it appropriate for installations governed by those specifications.

Key Features

• Inverted 45 degree flare geometry provides a metal-to-metal seal at the tube end
• Brass construction offers corrosion resistance in refrigerant, fuel, and hydraulic fluid service
• Rated to 750 psi maximum working pressure
• Rated to 250 degrees F maximum working temperature
• Meets SAE J51 standard and is UL Listed
• Flare x MNPTF ends for direct connection to NPT-ported components

Compatibility

Designed as an OEM-style replacement or service fitting for systems using 1/2 inch OD inverted flare tubing terminating at a 3/8-18 NPTF male port, consistent with SAE J51 flare standards.

Installation Notes

Installation should be performed by a qualified HVAC technician, refrigeration mechanic, or licensed plumber. De-pressurize and evacuate the system before removing or installing any fittings. Ensure the tube end is properly flared to the correct inverted flare angle before seating; an improper flare will prevent a leak-free metal-to-metal seal. Apply thread sealant to the NPTF threads only, never to the flare seat, and tighten to the fitting manufacturer and system manufacturer specifications.