Graco 16E987 Plug Ratio Check
The Graco 16E987 Plug Ratio Check is a precision plug used during ratio-verification on Graco 2-component mix manifold systems. It ensures accurate isolation of resin and hardener flow for proper mix calibration.
- For Graco XP70 and compatible 2K mix manifolds
- Essential for accurate ratio-check testing
- Helps diagnose imbalance and pump wear
Graco 16E987 Plug Ratio Check – Detailed Part Information
Graco 16E987 Plug Ratio Check is a precision plug used in ratio-check procedures on select Graco 2-component mix manifold systems. It allows accurate isolation and verification of resin and hardener flow during maintenance or calibration.
Compatible Machines
This part is used specifically on Graco multi-component sprayers equipped with the required mix manifold design.
- Graco XP70 Proportioner Systems (mix-manifold equipped)
- Graco 2-Component Mix Manifold Assemblies that accept Ratio Check Plug 16E987
Part Overview
The 16E987 Plug Ratio Check is designed to temporarily divert material flow during ratio-verification tests. It fits over the hardener outlet tube of supported Graco mix manifolds and functions as part of the ratio-check assembly to ensure the correct resin-to-hardener mix ratio for 2K systems.
Key Functions
- Enables accurate ratio-check procedures on compatible Graco 2K systems
- Helps diagnose pump wear, flow imbalance, or material delivery issues
- Supports quality assurance by confirming correct mix ratio before spraying
- Used during temporary removal of the static mixer hose for sample collection
Usage Notes
- Install during ratio-check procedure as instructed in the system manual
- Remove after testing and reinstall the standard outlet/mixer configuration
- Ensure feed pressure remains below 25% of proportioner output during testing
Frequently Asked Questions
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