Graco 107078 O-Ring
$6.90
Available to Order
Graco 107078 O-Ring is a genuine OEM seal designed to prevent leaks and maintain system pressure in Graco fluid-handling and spray equipment.
- Ensures reliable pressure sealing
- Used in Graco BPR Models 288262 & 288311
- Durable, chemical-resistant material
- Easy replacement and maintenance
Quantity
Genuine OEM Part
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Comprehensive Overview of Graco 107078 O-Ring
The Graco 107078 O-Ring is a genuine OEM sealing component designed to maintain pressure integrity and prevent fluid leaks in high-performance spray, coating and fluid-handling equipment.
Compatible Machines
- Graco Pneumatic Back-Pressure Regulator – Model 288262 (2 in sanitary inlet/outlet) — part 107078 is specified as the O-ring seal for this model.
- Graco Pneumatic Back-Pressure Regulator – Model 288311 (1-1/2 in NPT inlet/outlet) — this model also lists part 107078 in its parts list.
- Graco Surge Tank & Inlet/Outlet Fitting Assemblies — documentation shows “107078 O-ring (one required with each inlet/outlet fitting)”.
Key Features
- OEM-certified design ensures exact fit and performance with Graco machines.
- Critical sealing component used in high-flow, high-pressure fluid systems to prevent leaks and maintain system integrity.
- Compact and lightweight replacement part—easy to service without altering machine configuration.
- Compatible with various fluid & system types when used in the specified regulator or surge tank assemblies.
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 107078 |
| Component Type | O-Ring / Sealing Ring |
| Used In Machines | Graco BPR Models 288262 & 288311, Graco surge tank inlet/outlet fittings |
| Material | Specified as PTFE in some listings. |
| Application | High-pressure fluid handling, back-pressure regulator sealing, surge tank fittings |
Installation & Maintenance Tips
- Depressurize the system fully and isolate fluid flow before replacing the O-ring.
- Inspect the sealing surface and grooves for wear or damage prior to installation.
- Lubricate the new O-ring with compatible lubricant (if recommended) and install carefully without twisting or stretching.
- Replace the O-ring as part of regular maintenance when fluid leaks, pressure loss or frequent system interventions are observed.
Frequently Asked Questions
The O-ring provides a pressure-tight seal in fluid inlet/outlet or regulator assemblies, preventing leaks and preserving system pressure integrity.
Refer to your machine’s parts list or service manual. If the O-ring or “packing O-ring” is listed as 107078 among inlet/outlet or regulator parts, this is the correct replacement.
While the size and shape may physically fit other equipment, this part is designed to meet Graco’s tolerance, material specification and performance requirements. Using it outside its designated machines may compromise performance or warranty coverage.
Replace the O-ring during scheduled maintenance if you observe signs of wear, leakage, material hardening, cracking or if the system has undergone frequent disassembly or flush cycles.
Selecting the correct sealing component such as the Graco 107078 O-Ring helps maintain reliable operation, leak-free performance and pressure integrity in demanding fluid-handling systems.
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