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Graco 159840 1/4 NPT Female to 1/8 NPT Adapter

Easily connect mismatched thread sizes with the Graco 159840 1/4 NPT Female to 1/8 NPT Adapter. Ensures reliable, leak-free connections in industrial fluid systems.

  • Thread Conversion: 1/4 NPT female → 1/8 NPT male for flexible connections.
  • Durable Construction: Solid metal for high-pressure applications.
  • Versatile Use: Fits pump elevators, Topper units, and other fluid-handling systems.
  • OEM-Grade: Genuine Graco part ensuring precise fit and seal.

$39.48
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Versatile Thread Adapter for Industrial Fluid Systems

The Graco 159840 1/4 NPT Female to 1/8 NPT Adapter allows seamless connection between mismatched thread sizes, ensuring leak-free fluid transfer in your Graco systems. Ideal for pump elevators, sprayers, and other industrial fluid-handling applications.

Compatible Machines

  • Graco Pump Elevators – used in pump-mounting assemblies
  • Graco “Topper” Units – connects hoses and valves in drum topping systems
  • General Fluid-Handling Configurations – any machine requiring 1/4 NPT female to 1/8 NPT male connection

Key Features

Feature Description
Thread Conversion Converts 1/4" NPT female port to 1/8" NPT male port for compatibility between components.
Compact & Durable Small solid metal adapter designed for high-pressure fluid systems.
Versatile Use Fits pump elevators, drum topping units, and other fluid-handling setups.
OEM-Grade Precision Genuine Graco part ensures proper sealing and thread alignment.

Specifications

Specification Details
Thread Size 1/4 NPT Female → 1/8 NPT Male
Material Metal (steel or brass) suitable for high-pressure fluids
Application Industrial fluid-handling and pump assemblies
Compatibility Graco elevators, topper units, general fluid systems requiring this adapter

Installation & Maintenance

Apply proper pipe sealant or PTFE tape on NPT threads to prevent leaks. Install carefully without over-tightening to avoid thread damage. Periodically inspect the adapter for leaks, especially in systems with vibration or cyclic pressure.

Frequently Asked Questions

It allows a 1/4 NPT female port to connect securely with a 1/8 NPT male fitting, enabling compatibility between components with different thread sizes.

Compatible with Graco Pump Elevators, Graco Topper Units, and other industrial fluid systems requiring a 1/4 NPT female to 1/8 NPT male connection.

No special tools are needed. Standard wrenches and proper pipe sealant or PTFE tape are sufficient. Avoid over-tightening to protect threads.

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