... pneumatic valve. 6. High protection class,can be worked in moist conditions. IP65.Material of main parts: Actuator: heat ... ,drinking water equipment,solar water heaters,washing machines,water heaters,industrial humidifier.6.Solar thermal,under-floor,rain water,irrigation,plumbing service,hot water heating and ... Road No,16. Tianjin City, China QA/QC: In House Number of Production Lines: 6 Number of R&D ...