Aiming to build a comprehensive enterprise serving for upgrading society, facilitating human being, SPT Inc. has closely worked together with universities and institutes to provide updated technology products.SPT Inc. has dedicated mainly to the following sectors: controls ( solution & control products including PMSM inverter driver & control ), industrial solution (Calciner & Temperature Pressure Reducing System) and equipments (mining equipment & industrial processing equipment). Each product will be introduced in separate sectors. We have started from Hangzhou Zhouju Electronic Technology Co., Ltd, which has dedicated in PMSM's inverter driver and electronic controls, which is the forefront control technology domestically. Now we reconstructed SPT Inc. including HONG KONG SPT INTERNATIONAL LIMITED, HANGZHOU SHIBODE TECHNOLOGY CO., LTD, to focus on international businessProduct Range:Solutions: Control Solutions, Industrial Solutions (Calciner & Temperature Pressure Reducing System)Controls & Electronic ProductsValves: Control Valves, Power Plant Valves, Valves for Alumina Production Process,General Application ValvesDryer & CalcinerTemperature & Pressure Reducing SystemIndustrial Transporting EquipmentHardware ToolIntelligent Constant Pressure Water Supply EquipmentPipingCablesElectronic Control System for CarsQuality System: The company has been well managed with ISO9001:2000 and ERP systems. Each sector has some specific certificate too, like API for valves.We design and produce gate valves, globe valves, ball valves, check valves, plug valves, cock valves, butterfly valves, control valves, power plant valves^ with more than 800 specifications according to international standards such as ASTM, PED, ASME/ANSI,API, JIS, NF, BS,DIN and national standards like GB, JB, HG and DL, etc. Customization is available too. The nominal diameter varies from DN15 to DN2000 (1/2 " to 80"), the nominal pressure differs within 1.6 Mpa to 42.5 Mpa (class150 lbs to 2500 lbs), and operating temperature from -196 to 750 degrees. The materials mainly include carbon steel, alloy steel, stainless steel, monel, 20# alloy and etc.. API & CE are with us. Our valves have been broadly applied in petroleum, chemical, power station, metallurgy, mining and etc. We have a wide range of clients domestically and abroad, like Chalco, Sinopec, CNPC, and overseas clients in USA, Spain, Korea, Turkey, Russia, U.A.E., Brasil, India, Vietnam, Egypt, Portugal^. Main Client List may be provided for reference if required.Main three categories are Control Valves, Power Plant Valves, Valves for alumina production progress, and other General Application Valves.Inverter Control: our inverter control team has dedicated in PMSM's inverter driver and electronic controls for Air Conditioner, VRV, Heat Pump System, refrigerator, fan-motor, air-cleaner, kitchen appliances, has researched & developed INVERTER TECHNOLOGY applied in motor from 5W-20KW, having been tested better than Panasonic and Hitachi, has manufactured wide ranges of products based on it and purchased by INNOVA S.R.L, YORK, Mitsubishi-Haier, Jiaxibeila, DE&E, MEIDA, etc. Related products have also being exported to USA, New Zealand, Italy ^Control ValveWe've developed, designed and manufactured our series of control valves based on assimilating advantages of products made by Japanese Azbil, German ARCA and America Fisher. Our range of control valves are: self pressure regulating valve, temperature control valve, flow control valve, film pneumatic cut-off valve, pneumatic control valve, precision small type valve, three way valve, micro differential pressure regulating valve, temperature & pressure relief valve and etc. Our products have been widely applied in automatic control systems of different industries.Please kindly refer to our company web: www.smartpowertech.net and contact us for Catalogues in USB.