The top ten brands of valves are listed as follows:

1. Jingpai: Beijing Valve General Factory Co., Ltd., Jingpai BVMC, a famous trademark in Beijing, the chairman of the National Valve Industry Association, specializing in manufacturing high and medium pressure valves and steam traps.

2. KF Valve Opening: Henan Kaifeng High-pressure Valve Co., Ltd., a famous trademark of Henan Province, a subsidiary of China Valve Technology, and a vice-chairman unit of China General Machinery Association, is a large-scale backbone enterprise specializing in the production and operation of high and medium-pressure valves.

3. Yao Zi: Yuanda Valve Group Co., Ltd., Yao Zi, a valve brand, a famous trademark in Hebei Province, a famous brand product in Hebei Province, an associate unit of China Valve, an enterprise technology center in Hebei Province, and a first-class supplier of PetroChina and Zhongshidai.

4. Sanhua: established in 1994, it is a high-tech enterprise specializing in the refrigeration/air-conditioning control components industry, with the top ten products of valves advertised, and its four-way reversing valve/stop valve products have a high market share.

5. Newway: Suzhou Newway Valve Co., Ltd., one of the top ten brands of valves, a listed company and a famous trademark in Jiangsu Province.

6. CNNC Sufa: CNNC Sufa Technology Industrial Co., Ltd., one of the top ten brands of valves, is a famous trademark in Jiangsu Province.

7. Jiangyi: Jiangnan Holding Group, Jiangnan Nianyinna Valve Co., Ltd., the top ten brands of valves, a national high-tech enterprise and a national protected trademark.

8. Dun 'an: the core industry of Dun 'an Group, which is dedicated to product development in the field of high, medium and low pressure valves, and specializes in R&D and manufacturing of a series of valve products.

9. Chaoda: Chaoda Valve Group Co., Ltd., a well-known valve brand, was founded in 1984. It is a famous brand in Zhejiang Province and a famous brand product in Zhejiang Province. It is a large-scale valve enterprise group focusing on valve equipment manufacturing.

1. Shentong: Valve brand, vice chairman of China Valve Industry Association, listed company, state-level high-tech enterprise, China special equipment manufacturing enterprise, member of Baosteel Equipment and Spare Parts Joint R&D and Supply Center.