KP3700-1 - Lincoln Electric KP3700-1 Outside Cover Lens 5-Pack for Viking 3250D FGS

Essential Protection for Precision Welding Optics

The Lincoln Electric KP3700-1 Outside Cover Lens is a critical consumable component designed specifically for the Viking 3250D FGS Series welding helmets. In industrial environments, the integrity of the Auto-Darkening Filter (ADF) is paramount for both welder safety and work quality. This outside cover lens serves as the first line of defense, shielding the sophisticated ADF technology from the harsh realities of welding, including molten spatter, high-velocity sparks, and radiant heat. By maintaining a pristine barrier, the KP3700-1 ensures that the helmet's sensors function correctly and that the optical clarity remains uncompromised.

Manufactured from high-grade polycarbonate, these lenses are engineered to withstand significant thermal and mechanical stress. The specific dimensions of 158.2 x 100 x 1.2 mm are precision-cut to fit the unique geometry of the 3250D FGS shell. This exact fitment is crucial; ill-fitting generic lenses can leave gaps that allow smoke and particulate matter to damage the ADF or obscure the welder's vision. The 1.2 mm thickness provides a robust shield without introducing optical distortion, ensuring that the welder sees the weld pool with the accuracy required for high-specification fabrication.

Maintenance managers and procurement specialists will appreciate the packaging efficiency of the KP3700-1, which comes as a pack of five. Regular replacement of the outside cover lens is a standard maintenance protocol that extends the lifecycle of the entire helmet assembly. A pitted or scratched lens can cause arc sensor obstruction, leading to flash blindness or erratic switching. By keeping a stock of these genuine Lincoln Electric replacements, facilities ensure uninterrupted operations and adherence to safety standards. This product is strictly compatible with the Viking 3250D FGS and is not interchangeable with other Viking series helmets.