Ventilation fans enclosure Nema 12, 3r indoor outdoor delvalle manufacture elnclosures and ventilations with fan certifiqued Nema 12, 3r. delvalle specialized in manufacturing enclosures with fans nema 4x, nema nema 3r, nema 12. Related News cooling nema 4x |delvalle cooling nema 4x |delvalle call us for information Cable glands Delvalle: Solutions against condensation water Cable glands Delvalle: Pressure, temperature and air humidity are in a constant state of