Compatible Machines & Applications
The Graco 02/0728-M/50 Valve Assembly Ratio Check 3/4 MS is designed for use in advanced plural-component proportioning systems where accurate material ratio and backflow prevention are critical.
- Graco Reactor E-Series plural-component systems
- Graco Reactor H-Series proportioners
- Graco XP Series plural-component sprayers (e.g., XP50, XP70)
- Graco hydraulic and pneumatic proportioning units
- Industrial polyurea and polyurethane spray systems
- Epoxy and multi-component coating systems requiring ratio control
Product Overview
The Graco 02/0728-M/50 Valve Assembly Ratio Check 3/4 MS is a precision-engineered component used in fluid handling systems to maintain accurate mixing ratios between multiple materials. It plays a vital role in ensuring consistent performance in applications such as coatings, sealants, and spray foam systems.
Key Features
| Part Type | Ratio Check Valve Assembly |
| Part Number | 02/0728-M/50 |
| Connection Size | 3/4 inch |
| Material | Mild Steel (MS) |
| Function | Maintains ratio accuracy and prevents backflow |
Function & Benefits
This valve assembly ensures that each component in a plural system flows correctly without contamination or reverse movement. It is essential for maintaining consistent output quality and protecting system components.
- Prevents cross-contamination between fluid lines
- Maintains precise ratio control in multi-component systems
- Enhances system reliability and operational efficiency
- Supports high-pressure industrial applications
Typical Applications
- Polyurethane and polyurea spraying
- Epoxy coating and sealing systems
- Industrial adhesive dispensing
- Protective coatings and lining systems
Frequently Asked Questions
A ratio check valve ensures that two or more materials flow in the correct proportion while preventing backflow or mixing inside the fluid lines.
No, this valve is designed for specific plural-component systems. Always verify compatibility using your machine’s parts manual or part number reference.
Proper ratio control ensures correct curing, performance, and finish quality of materials like epoxy, foam, and coatings.
