Graco 15A052 Cylinder Cover – In‑Depth Description
The Graco 15A052 Cylinder Cover is a high-quality OEM component engineered to enclose and protect the internal workings of your pump’s fluid cylinder. This cover ensures alignment of critical parts while helping to prevent fluid leaks and contamination, making it a vital piece for reliable and efficient pump operation.
Key Features
- Genuine factory-specified Graco part
- Rugged, precision-machined metal construction
- Seals internal cylinder components against external contaminants
- Maintains alignment of diaphragm, piston, and shaft
- Resists pressure-induced wear and fatigue
Ideal Applications
- Routine rebuilds of Graco diaphragm or fluid pumps
- Industrial systems where fluid integrity is critical
- High-cycle, high-pressure pump operations
- Pumps used for chemical, coating, or solvent transfer
Installation & Maintenance Advice
To ensure optimal functionality and longevity, take care during installation and follow these service guidelines.
- Thoroughly inspect and clean mating surfaces before fitting.
- Remove any debris to avoid damaging internal seals or parts.
- Torque fasteners evenly per OEM recommendations.
- After installation, run the pump at low pressure to check for proper sealing.
- Inspect this cover during each major rebuild to catch early signs of wear or deformation.
When to Replace the Cover
- Deformation or warping of the cover surface
- Evidence of internal leaks or seepage
- Corrosion, pitting, or mechanical damage
- Instability or misalignment of internal components after assembly
- Frequent rebuilds indicating cover fatigue
Technical Specifications
| Specification |
Detail |
| Part Number |
15A052 |
| Component Type |
Internal Cylinder Cover |
| Material |
Hardened metal / alloy |
| Function |
Seals and protects the pump’s internal fluid section |
| Use Case |
High-pressure industrial Graco pumps |
Advantages of the OEM Cover
Installing the authentic Graco 15A052 Cylinder Cover helps maintain your pump’s original design integrity, protecting internal components and supporting dependable, leak-free operation.
- Ensures proper alignment of the diaphragm, piston, and shaft
- Prevents internal contamination and prolongs seal life
- Reduces risks of leaks under high-pressure cycling
- Simplifies maintenance and rebuilds using factory-spec parts
- Boosts the longevity and reliability of your pump system
Frequently Asked Questions
It serves as a protective and sealing cover for the internal cylinder section, maintaining alignment and preventing internal fluid leaks.
Yes — using a new OEM cover during a rebuild helps preserve proper alignment and sealing performance.
Look for warping, leakage, corrosion, or misalignment inside the cylinder — these are common indicators that replacement is needed.
While alternatives may exist, OEM covers like the 15A052 provide guaranteed fit, tolerance, and durability that aftermarket parts may not match.
