

The Graco 127721 Impact Control Preventer Knob provides precise adjustment and safety control for Graco electric driver systems.
The Graco 127721 Impact Control Preventer Knob is a precision-engineered control knob designed for regulating and preventing excess impact in Graco electric driver systems. It ensures precise adjustment of control settings, providing consistent operational safety and improved user control over high-pressure spraying or pumping equipment.
This impact control knob offers improved handling and fine-tuning capability, allowing operators to safely prevent excessive pressure or vibration during high-torque operations. Its durable construction ensures long-lasting reliability in industrial, construction, and coating applications.
| Specification | Details |
|---|---|
| Part Number | 127721 |
| Type | Impact Control Preventer Knob |
| Material | High-strength polymer composite |
| Function | Prevents excessive torque or impact in control mechanisms |
| Applications | Used in Graco Electric Driver systems such as Z60 and E70 |
The Graco 127721 Knob is an essential replacement part for Graco electric driver units, allowing precise control adjustments on the e-Xtreme Z60 and King E70 systems. It’s ideal for operators requiring dependable mechanical control over pump impact settings in coating and pressure delivery systems.
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