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About DingSen

Shaoxing DingSen Refrigeration Technology Co., Ltd. founded in 2008, is a China Three tube high-temperature welding gun Manufacturers and Three tube high-temperature welding gun Factory, mainly producing refrigeration accessories and auto air-conditioning accessories. Having been established for more than 10 years, the company has since taken "Honesty and Innovation" as its goal, and "Superb Manufacture, Good Virtue, Serious Attitude, and High Quality" as its business philosophy. Guided by high-tech development, it adheres to a sustainable path of growth focused on quality and benefit.
Through continuous innovation and practice, the company has built a solid quality foundation and a guaranteed reputation in the manufacturing industry. Meanwhile, with efficient and high-quality service and a belief in mutual benefit, the company actively cooperates with businesses from all fields, constantly explores the market, and strives to create a better tomorrow.
Dingsen: Refrigeration & auto AC parts since 2008.
Decades of precision manufacturing.
Durable evaporators, condensers, connectors.

shaoxing DingSen Refrigeration Technology Co Ltd.

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latest News
  • An air conditioning reducing nut works by mechanically compressing a flared copper pipe end against a tapered sealing seat inside the nut body, creating a leak-free refrigerant connection between two pipes of different diameters. The nut has different thread sizes and bore diameters on each end — o...

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  • An air conditioning three-way valve is a precision refrigerant flow control component with three pipe connections — one inlet and two outlets, or two inlets and one outlet — that directs refrigerant along different circuit paths within an air conditioning system. Its core functions are switching re...

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  • An air conditioning three-way valve works by redirecting refrigerant flow between two alternative paths using a mechanically or electronically actuated internal spool or ball mechanism. It has three ports — one inlet and two outlets (or two inlets and one outlet, depending on configuration) — and c...

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