The Graco 803919 Anti-Extrusion Ring is a sealing support component designed to protect O-rings in high-pressure pump systems. It helps maintain reliable sealing performance and prevents seal damage.
The Graco 803919 Anti-Extrusion Ring is used in specific Graco pump assemblies where it supports the sealing system and prevents seal extrusion under high pressure.
The Graco 803919 Anti-Extrusion Ring is a precision sealing support component designed to protect O-ring seals in high-pressure pump systems. It is installed alongside an O-ring within the pump assembly to prevent the seal from being forced into gaps caused by high operating pressure.
By supporting the sealing element, this ring improves the durability of the pump’s sealing system and helps maintain consistent pressure performance. It plays an important role in extending the service life of pump components used in demanding cleaning and fluid handling applications.
| Part Number | 803919 |
| Part Type | Anti-Extrusion Ring |
| Brand | Graco |
| Function | Supports O-ring seals and prevents extrusion under pressure |
| Application | High-pressure pump sealing systems |
Within a pump assembly, the Anti-Extrusion Ring works together with O-rings to maintain effective sealing performance. During high-pressure operation, O-rings can deform and push into small clearances inside the pump. The ring acts as a reinforcement barrier that protects the O-ring and ensures the seal maintains its shape.
This design helps prevent leakage, reduces premature wear of sealing components, and ensures reliable pump operation in professional cleaning and fluid transfer equipment.
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