Graco Check Valve ISO Repair Kit
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Product Overview
The Graco ISO Check Valve (#246731) is a high-performance component designed for use in Graco Fusion AP spray guns, specifically on the isocyanate (A-side) of spray foam systems. Engineered to prevent backflow and cross-contamination, this valve ensures consistent spray patterns and protects your equipment from damage caused by material mixing. With durable construction options--including aluminum, stainless steel, and titanium-coated steel--and easy identification via color-coded anodizing, it’s a reliable upgrade that enhances spray efficiency and reduces maintenance downtime.
Purpose & Function
The Graco ISO Check Valve is a critical component in spray foam insulation systems, specifically designed for the A-side (isocyanate) of the Graco Fusion AP spray gun. Its primary function is to:
- Prevent backflow of ISO material
- Maintain separation between A-side and B-side chemicals
- Ensure consistent spray patterns and proper atomization
Applications
This valve is used in:
- Spray foam insulation
- Polyurea coatings
- Industrial protective coatings
- Roofing and building envelope systems
It’s ideal for contractors and professionals working with high-pressure plural-component spray systems.
Features
- Precision-machined housing for durability and reliability
- Color-coded anodized aluminum (red for A-side) with “A” marking for easy identification
- Multiple material options:
- Aircraft-grade aluminum (standard)
- Stainless steel
- Titanium Gold A2 Tool Steel
- Complete internal kit includes:
- Rings
- Screen
- Housing
- Screw
- Carbide ball
- Spring
- Face O-ring
- Housing O-ring
Benefits
- Reduces downtime by preventing clogging and cross-contamination
- Improves spray consistency and finish quality
- Extends equipment life by protecting internal components
- Quick identification and replacement thanks to color coding
- Customizable durability with material upgrades
Instructions for Use
- Ensure system is depressurized before installation or maintenance.
- Remove old check valve from the A-side of the Fusion AP gun.
- Install new valve, ensuring all O-rings and seals are properly seated.
- Tighten securely and test for leaks before resuming operation.
Safety Information
- Always wear protective gloves and eyewear when handling ISO materials.
- Follow manufacturer guidelines for installation and maintenance.
- Dispose of used components according to local hazardous waste regulations.