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Graco 128779 Blue Vee Packing

$13.40
In Stock
Part #: 128779

Graco 128779 Blue Vee Packing is a durable piston seal designed for high-pressure pumps, ensuring leak-free performance and extended service life.

  • Material: PTFE and polyurethane composite
  • Design: Vee profile for uniform load distribution
  • Pressure Rating: Up to 3,000 psi
  • Compatible Machines: Hydra-Max, ProMix, Reactor pump series
  • Applications: High-pressure airless sprayers and bulk coating systems
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Graco 128779 Blue Vee Packing Overview

Compatible Machines

  • Graco Hydra-Max Pump Series – High-pressure piston pumps for professional coatings
  • Graco ProMix Pump Series – Modular bulk material handling and spray systems
  • Graco Reactor Pump Series – Advanced plural component spray applications
  • Equivalent third-party high-pressure filtration and pump systems

Product Highlights

  • Material: PTFE and polyurethane composite for high wear resistance
  • V-Profile Geometry: Ensures uniform load distribution and minimal leakage
  • High-Pressure Resilience: Supports up to 3,000 psi continuous operation
  • Maintenance-Friendly: Easy installation, precise stack orientation, and lubrication port
  • Durability: Resistant to abrasive particulates and chemical attack

Performance & Applications

Designed for high-performance airless sprayers and bulk coating systems, the 128779 maintains consistent pressure, minimizes internal leakage, and ensures smooth material flow. Ideal for professional coatings, repeated cycles, and demanding industrial conditions.

Frequently Asked Questions

It is a piston Vee packing seal designed for high-pressure pump systems to prevent leakage and maintain consistent pressure.

Compatible with Graco Hydra-Max, ProMix, Reactor series, and equivalent third-party high-pressure pumps.

Made from PTFE and polyurethane composites, it resists abrasive and chemical wear, with extended service life over repeated cycles.

Maintenance & Installation

Installation requires proper stacking orientation around the piston rod, correct gland torque, and lubrication. Periodic inspection and cleaning of rod surfaces ensure consistent seal performance and extended service life.

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