Service Station Hardware

The Defender Series® Overfill Prevention Valve (OPV) prevents overfilling of underground tanks during gravity-fed fueling. This valve utilizes an innovative magnetically coupled actuator system that provides high-precision positive shutoff. The valve's non-penetrating body design makes it vapor-tight and leak-proof, while also enabling remote functional testing from the ground surface (grade level testing) without removing the valve from the tank. This solution provides maximum safety, ease of maintenance, and compliance with modern petroleum industry safety standards.