Graco 128779 Blue Vee Packing

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

$15.23

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Description

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.