Graco 104640 Gasket – Precision-Seal Component for Airless Sprayer Systems
Compatible Machines
- Graco airless spray pumps used in coating and finishing operations
- Graco pump assemblies in industrial & commercial finish systems
- Graco mobile spray rigs requiring reliable high-pressure gaskets
- Graco OEM replacement kits for airless spraying equipment
Product Description
The Graco 104640 Gasket is a precision-engineered sealing component crafted for high-performance airless sprayer systems. Designed to maintain optimum pressure integrity and prevent leaks, this gasket ensures consistent fluid delivery and supports system longevity under demanding operating conditions.
Key Features
- Exact OEM replacement gasket for Graco spray pumps.
- Durable elastomer construction resists wear, fluid intrusion and chemical exposure.
- Precision-molded design for ideal sealing fit and minimal leakage.
- High-pressure rated to sustain performance in demanding finish-systems.
- Reduces maintenance downtime by improving seal reliability and service intervals.
Technical Specifications
| Specification |
Details |
| Part Number |
104640 |
| Component Type |
Gasket – sealing ring |
| Material |
High-grade elastomer (e.g., nitrile or equivalent) |
| Intended Use |
Sealing in Graco airless spray pump assemblies |
| Operating Pressure |
High-pressure spray systems (up to typical airless pump ratings) |
Applications
The Graco 104640 Gasket is used in industrial and commercial coating systems where high-volume fluid transfer, high pressure and consistent spray performance are essential. It supports finishing lines, mobile spray units and maintenance kits designed to restore pump sealing integrity and prolong equipment uptime.
Performance Advantages
- Enhances sealing performance and prevents fluid bypass in pump systems.
- Contributes to stable spray pressure and consistent coating delivery.
- Extends service intervals by providing reliable seal under cyclic loading.
- Reduces the risk of leaks and maintain-down events in finishing operations.
- Supports overall equipment reliability by maintaining foundational sealing elements.
Maintenance Tips
During pump servicing, ensure the mating surfaces are clean, dry and burr-free before installing the gasket. Confirm the gasket is seated correctly and evenly compressed across the gland. Replace the gasket if you observe extrusion, deformation, chemical damage or any deterioration that could compromise sealing performance.
Frequently Asked Questions
Its primary function is to provide a reliable seal within high-pressure airless spray pump assemblies, preventing leaks and maintaining consistent fluid delivery.
Replace the gasket if you notice fluid seepage, extrusion, deformation, chemical swelling or any sign of compromised sealing during pump operation or maintenance inspection.
Clean and inspect the mating surfaces, align the gasket correctly in the groove, apply even torque when reassembling, and ensure the gasket remains undistorted to maintain full contact around the seal.
It is designed for use in high-pressure airless spray systems and is compatible with a range of fluid types used in industrial finishing—albeit specific compatibility should be checked against fluid chemical composition and temperature range.
