Graco 15A118 Piston Pump D50 – Detailed Overview
The Graco 15A118 Piston Pump D50 is a robust and precision-engineered component built for high‑performance fluid transfer. Designed specifically for Graco’s D50 series pumps, this piston pump offers reliable pressure generation, durability under harsh operating conditions, and long-term stability for industrial fluid-handling applications.
Compatible Systems
- Graco D50 Piston Pump Assemblies
- High‑viscosity fluid transfer systems using D50 series
- Industrial coating, sealant, and adhesive dispensing systems
Key Features & Advantages
- High-Pressure Performance: Delivers consistent pressure for reliable fluid output.
- Durable Construction: Built from premium materials to withstand cyclic stress and wear.
- Precision Engineering: Machined to exact tolerances to ensure smooth piston travel and long life.
- Seamless Integration: Designed to fit directly into Graco D50 pump modules for easy replacements.
- Minimal Maintenance: Simplifies rebuilds by providing a core component that can be serviced or replaced.
Technical Specifications
| Part Number | 15A118 |
| Name | Graco Piston Pump – D50 |
| Type | Piston / Displacement Pump Component |
| Compatible Series | Graco D50 |
| Weight | Approximately 2.8 lb (per vendor spec) |
| Condition | OEM New / Replacement Part |
Installation & Maintenance Tips
- Always isolate and depressurize the system before removing or installing the piston.
- Clean the pump housing thoroughly to remove any residue or old fluid before inserting the new piston.
- Inspect the piston surface for scoring, corrosion, or wear during routine maintenance.
- Lubricate lightly if recommended by Graco or your system’s maintenance manual to ensure smooth movement.
- Torque the pump housing bolts evenly and according to specification to avoid misalignment.
Frequently Asked Questions
The 15A118 Piston Pump is a core component for Graco D50 piston pump assemblies, used to transfer fluids under pressure in industrial applications.
First, make sure the pump is fully depressurized and clean. Then carefully insert the piston into the housing, ensuring it aligns properly, and torque the assembly bolts evenly.
Inspect the piston regularly for wear, scoring, or corrosion. If performance drops or damage is detected, replace it to maintain pump efficiency.
