Petsaco provide you explosion-proof wall air conditioner, cooling and heating system from qualified manufacturer to meet different requirements of low, medium and high temperature zones for refineries, chemical plants, offshore platforms, drill ships, vessels, and other facilities. we have the expertise to provide a custom solution for your needs with full documentation support and FAT testing and certification. We offer you EX equipment, after sales service and technical support; our explosion proof systems give you peace of mind and superior safety through quality of engineering.