Graco 104585 Ball – Precision Pump Component Overview
Compatible Machines
- Graco Model 215955
- Graco Model 237253
- Graco Model 237256
- Graco Model 220440
- Graco Model 220439
- Graco HydraMax Series
- Graco Magnum Pro Series
- Graco Magnum X5 and X7 Airless Paint Sprayers
Product Description
Graco 104585 Ball is a high-performance piston-valve ball designed to deliver reliable fluid control in professional airless sprayer systems. Engineered for durability and corrosion resistance, it ensures consistent seal integrity, minimizing internal leakage and maintaining optimal pressure during coating operations.
Key Features
- Durable stainless steel construction for long-lasting use
- Precision ground surface for accurate sealing
- Corrosion and wear resistance in high-pressure environments
- Compatible with multiple Graco displacement pumps
- Supports fluid pressures up to 4,000 PSI
Technical Specifications
| Specification | Details |
| Part Number | 104585 |
| Component Type | Piston Valve Ball / Check Valve Ball |
| Diameter | 22 mm |
| Material | High-hardness stainless steel or tungsten carbide |
| Operating Pressure | Up to 4,000 PSI |
| Temperature Range | −20°C to 80°C |
| Seal Life | Over 1,000,000 actuation cycles |
Applications
The Graco 104585 Ball is suitable for use in architectural coatings, industrial finishing, protective coatings, and automotive refinishing. It’s engineered to integrate seamlessly with professional Graco spray rigs, offering smooth flow control and reduced maintenance downtime.
Performance Advantages
- Improves pump efficiency and seal longevity
- Enhances atomization consistency for even coatings
- Supports high-flow manifold designs with minimal configuration
- Reduces hydraulic load on motors and moving parts
- Maintains chemical resistance across solvents and coatings
Maintenance Tips
For optimal performance, inspect the piston seat and valve area during each maintenance cycle. Apply manufacturer-approved pump grease before reassembly and use proper torque tools for installation. Routine inspection ensures consistent fluid metering and longer system life.
Frequently Asked Questions
It’s a piston-valve ball that controls fluid flow in Graco airless sprayer pumps, maintaining proper sealing and pressure during spraying.
It fits Graco pump models 215955, 237253, 237256, 220440, 220439, and is also used in HydraMax and Magnum Pro series including the Magnum X5 and X7.
The ball is constructed from high-hardness stainless steel or tungsten carbide, providing exceptional corrosion and wear resistance.
Replacement intervals depend on operating conditions, but it’s recommended to inspect the ball and seat during each maintenance cycle and replace if wear or pitting is observed.
