Midland Industries 500086 Reducing Pipe Coupling Steel

Product Description

The MIDLAND INDUSTRIES 500086 is a steel reducing pipe coupling designed to connect two female NPTF ports of different sizes in hydraulic and fluid power systems. It transitions a 1/2-in Female NPTF (1/2-14 thread) to a 3/8-in Female NPTF (3/8-18 thread) in a compact, one-piece body. Rated to 3000 psi maximum operating pressure and a maximum temperature of 375 degrees F, this coupling suits demanding industrial and mobile hydraulic applications. Licensed plumbers, pipefitters, and hydraulic system technicians are the typical installers. Compliance with SAE 140138 dimension standards ensures consistent fitment across qualifying system assemblies.

This coupling is used in hydraulic plumbing runs where a line size reduction is needed between two female-threaded ports. It is commonly installed in industrial machinery, mobile equipment hydraulic circuits, and fluid power distribution manifolds. The steel construction stands up to high-pressure hydraulic fluid, making it appropriate for both stationary and mobile hydraulic applications. Its compact envelope fits tight plumbing layouts where space between components is limited.

Key Features

• Reduces 1/2-in Female NPTF to 3/8-in Female NPTF in a single fitting
• Rated to 3000 psi maximum operating pressure
• Maximum operating temperature of 375 degrees F
• Meets SAE 140138 dimension standards for consistent fitment
• Steel construction for durability in high-pressure hydraulic environments
• Thread sizes: 1/2-14 NPTF x 3/8-18 NPTF

Compatibility

Designed as an OEM-style replacement or service fitting for hydraulic and fluid power systems using standard NPTF-threaded connections in the 3/8-in to 1/2-in size range.

Installation Notes

Installation is typically performed by a licensed pipefitter or hydraulic system technician. Depressurize and isolate the hydraulic circuit completely before removing or installing any fitting. NPTF threads are designed for a dry-seal connection, but confirm system requirements before applying thread sealant. Torque to the system plumbing specifications provided by the equipment manufacturer.