Graco 129631 Potentiometer Encoder
The Graco 129631 Encoder Potentiometer ensures precise control and reliable performance for your airless sprayer.
- Compatible with Ultra Max II 695, 795, 1095, 1595
- Provides accurate pump speed & flow feedback
- Durable, dust & water resistant (IP65)
- Long-lasting: ≥100 million shaft rotations
Compatible Machines and Overview
| Compatible Machines |
|---|
| Graco Ultra Max II 695 |
| Graco Ultra Max II 795 |
| Graco Ultra Max II 1095 |
| Graco Ultra Max II 1595 |
| Graco Contractor PC 495 |
| Graco Contractor PC 695 |
| Graco MISC family equipment |
Product Overview
The Graco 129631 Encoder Potentiometer delivers precise feedback for airless sprayers, ensuring accurate monitoring of pump speed for a consistent finish. Its sealed housing resists contaminants and provides long service life while maintaining steady voltage signals for automated controls.
- Compact design for easy integration
- Resistant to wear and high-pressure environments
- Compatible with Graco MISC family equipment
Key Features
- High precision potentiometer with encoder functionality
- Dimensions: 2.55 in × 2.10 in × 0.85 in
- Electrical specs: 5 kΩ nominal resistance, linearity tolerance ≤±0.25%
- Mechanical life: ≥100 million shaft rotations
- Voltage output: 0.1–4.9 VDC for 0–300° rotation
- IP65 rated for dust and water resistance
Materials and Construction
The potentiometer uses glass-reinforced phenolic resistive track and a 303 stainless steel shaft. Dual-lip NBR seals protect the sensor from contaminants. Silicone-based lubrication ensures smooth operation from –40°C to 85°C. The housing is made from glass-filled nylon for impact resistance.
Integration and Usage
The 129631 potentiometer mounts via two M3 threaded standoffs, with a 6 mm D-flat shaft for secure torque coupling. It can be used in closed-loop control systems with PLCs, flow sensors, or proportional valves, providing precise flow and pump stroke feedback for industrial and professional coatings applications.
Frequently Asked Questions
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