The Jiangsu Provincial Economic and Trade Commission, in collaboration with the Changzhou Municipal Science and Technology Bureau, recently brought together a panel of experts specializing in gear manufacturing, testing, materials, and heat treatment to evaluate the scientific and technological achievements of the "small modulus precision worm pair for fluid control valves" project developed by Changzhou Dehao Precision Transmission Co., Ltd. The expert panel concluded that the product's key technical performance indicators have reached international advanced standards. It is reported that this project was entirely developed according to the American standard AGMA2111-A98. The product has now entered mass production and is being widely used by global industry leaders such as FLOWSERVE in oil and gas pipeline control valves and other critical applications.
Fluid control valves are essential components in industries such as petroleum, natural gas, chemicals, and water treatment. These valves are typically engineered to endure extreme conditions, including high and low temperatures, corrosion, and high pressure, making their reliability crucial. Within these valves, the small modulus precision worm pair serves as a vital component, ensuring stability, precision, and efficiency in operation. For many years, the efficient mass production of such components has been a major challenge in China, limiting the development of high-end fluid control valves.
Changzhou Dehao Precision Transmission Co., Ltd. has over a decade of experience in manufacturing small modulus gears, pinions, and worm gears. In recent years, the company has focused on innovation and the development of high-end products, targeting specialized markets. The small modulus precision worm pair series for fluid control valves was introduced in 2007 and has since undergone rigorous quality testing by both national inspection agencies and FLOWSERVE. To meet growing domestic and international demand, the company has upgraded its production line, enabling it to produce up to 50,000 sets of precision worm pairs annually. This advancement significantly supports the growth and competitiveness of China’s high-end control valve industry.
Filter Press With Flex And Vibration
Filter Press with flex and vibration is suitable for materials with large viscosity and difficult to automatically fall off.
The filter cloth varicose system developed by our company can enable the filter press to change the inclination angle of the filter cloth during operation to form an inverted V shape, and at the same time, the springs held on the filter cloth expand and contract to generate vibration, so that the filter cake will fall off automatically. The varicose rod is made of reinforced polypropylene, which is light in weight, corrosion-resistant, flexible in movement and easy in maintenance. The varicose vibrating filter press is suitable for materials with high viscosity and difficult for the filter cake to peel off automatically.
This machine is widely used in wastewater treatment in various industries, such as food wastewater treatment, slaughterhouse wastewater treatment, meat processing sludge dehydration, cooked food processing factory wastewater treatment, soybean product wastewater treatment, urban sewage treatment, papermaking sludge dehydration , chemical fiber textile printing and dyeing sewage treatment, petrochemical sewage treatment and sewage treatment plants and other industries that require solid-liquid separation.
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