Buschjost has developed valves which will operate down to minus 60C. Even under these extreme ambient temperatures they achieve short but fierce air blasts for the reverse jet cleaning of the filter media. The series ranges from DN20 to DN 80 valves and therefore offers solutions for small up to very big filter units. All valves of this series are equipped with one-piece TPE-diaphragms with integrated spring function. In areas of extreme low temperature of -41C to -60C the valves need to be operated from a suitable pilot valve box, down to -40C they can be equipped with solenoid actuators directly on the valves. In areas of down to -20C even with the patented Buschjost Twist-on solenoid system which includes all functional elements captive in the coil assembly and can be installed without tools and in the smallest installation area. All electromagnetically operated valves come with a pilot area which gives maximum protection against freezing in that section. Solenoids are available in all usual voltages from 12 to 230 V AC and DC and can come in various versions with different ATEX or UL ratings.