Flexible Couplings

3/4″ NPTF Female x 1/2″ NPTF Straight Hex Coupling Hydraulic Pipe Thread Fitting

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$29.99
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Overview

The 3/4″ NPTF Female x 1/2″ NPTF straight hex coupling is a precision-manufactured hydraulic pipe thread fitting engineered for secure connections in fluid power systems. Built from forged carbon steel with a zinc-trivalent anti-corrosion coating, this straight hex coupling provides a robust solution for adapting and joining NPT-threaded pipes and components.

Key Features

  • Material: Forged carbon steel with zinc-trivalent anti-corrosion coating for durability in hydraulic environments
  • Thread Type: NPTF (National Pipe Tapered Fuel) on both ports for reliable mechanical locking
  • Design: Straight hex coupling (female-to-female reducer) with hex body for wrench engagement
  • Port Configuration: 3/4″ female inlet, 1/2″ female outlet for system adaptation
  • Sealing: Tapered thread design that crushes and locks when male threads mate with female tapers; compatible with Teflon tape or pipe thread sealant

Technical Specifications

  • Inlet Port: 3/4″ NPTF Female
  • Outlet Port: 1/2″ NPTF Female
  • Fitting Type: Straight Hex Coupling / Reducer
  • Material: Carbon Steel (SAE Grade)
  • Finish: Zinc-Trivalent Coating
  • Thread Profile: National Pipe Tapered Fuel (NPTF)
  • Operating Temperature Range: -40°F to +250°F (-40°C to +121°C)

Typical Applications

  • Hydraulic system pipe connection and adaptation
  • Industrial fluid power equipment assembly
  • Machinery and construction equipment hydraulic circuits
  • Petroleum and mineral oil-based hydraulic fluid systems
  • Pressure line reducers and port adapters

Compatibility & Replacements

Compatible With

  • Standard NPT pipe thread systems and components
  • Hydraulic hoses with NPT female adapters
  • Industrial hydraulic pumps and motors with tapered thread ports
  • Manifold blocks and directional control valves with NPT ports
  • Petroleum and mineral oil hydraulic fluids

Replaces / Drop-In Replacement For

This fitting is a direct replacement for any 3/4″ NPTF Female x 1/2″ NPTF Female straight hex coupling. Verify compatibility with your specific equipment or consult your system integrator before ordering if cross-referencing is required.

Works With

  • NPT (National Pipe Tapered) threaded components and assemblies
  • Teflon tape and pipe thread sealant compounds
  • Standard hydraulic wrench sizes for hex coupling engagement
  • NPTF straight connectors, elbows, tees, and other pipe thread fittings from Parker, Eaton, Weatherhead, and equivalent manufacturers
Inlet Port

3/4" NPTF Female

Outlet Port

1/2" NPTF Female

Fitting Type

Straight Hex Coupling / Reducer

Material

Forged Carbon Steel

Finish

Zinc-Trivalent Coating

Thread Standard

NPTF (National Pipe Tapered Fuel)

Operating Temperature

-40°F to +250°F

Sealing Method

Tapered Thread Lock with Sealant

Application

Industrial Hydraulic Systems

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