There are many Chinese butterfly valve manufacturers, the following companies have outstanding performance in terms of technical strength, market share and industry influence:
Top 10 butterfly valve manufacturers in China
CNCC Sufa Valve
It has deep technical accumulation in the field of nuclear-grade valves, with a domestic market share of 53% for nuclear-grade butterfly valves, leading the butterfly valve supply for more than 30 nuclear power plants such as Qinshan and Daya Bay, and participating in national projects such as “Hualong One”.
Suzhou Newway Valve
The world’s first 1,500-meter deep-sea butterfly valve (pressure resistance 25,000 psi) has passed DNV certification, with a global market share of 40% for LNG marine butterfly valves, and a localization rate of over 90% for nuclear power butterfly valves. Its large-diameter high-temperature purge three-eccentric butterfly valve (diameter 40 inches) has filled the domestic gap and is suitable for high-temperature working conditions such as propane dehydrogenation.
Shanghai Guanlong
The product has been widely used to municipal, energy and other fields, and the intelligent flow regulating butterfly valve integrates the Internet of Things module, and the AI quality inspection yield rate reaches 99.7%. Its low-carbon stainless steel butterfly valve has a 40% lower carbon footprint and is used in the Jakarta urban pipeline reconstruction project.
NSW Valve Manufacturer
NSW Valve is located in Wenzhou, Zhejiang, China’s pump and valve capital, and has a professional butterfly valve factory production line. Their high performance butterfly valves, triple offsets butterfly valves, metal sealed butterfly valves, cryogenic butterfly valves, and high pressure butterfly valves are designed entirely in accordance with the European market quality, with light torque and stable performance. The ISO 5211 upper flange connection can be freely installed with electric actuators and pneumatic actuators. The company’s butterfly valves have passed API 607, API 6FA, ISO 15848-1, ISO 15848-2, and ISO 9001 certifications.
Jiangsu Shentong
The technical parameters of nuclear-grade butterfly valves have been adopted by the International Atomic Energy Agency, the 70MPa hydrogenation valve has passed the German TÜV certification, and the failure rate of the leading hydrogen storage and transportation valves in the Tianjin Port demonstration project is less than 0.5%.
Tianjin Gaotong
It has more than 50 patented technologies, such as the “quick-disassembly structure stop valve”, which increases maintenance efficiency by 70%, covering the Sinopec long-distance pipeline project, and its comprehensive strength ranks among the top five in the domestic valve industry.
Zhejiang Hantum Valve
In 2024, it obtained the patent for “high reliability, corrosion-resistant center line fluorine-lined butterfly valve”. The rotating structure of this product is reliable and suitable for highly corrosive working conditions.
Shanghai Qizhong Valve Manufacturing Co., Ltd.
Shanghai Qizhong Valve also has an outstanding performance in the field of butterfly valves. The company pays attention to product quality and brand building, and has won market recognition with high-quality and high-performance butterfly valve products. Qizhong Valve continues to innovate in product research and development, actively introduces advanced technology and management experience, and improves the technical content and added value of products. At the same time, the company also pays attention to communication and cooperation with users, providing users with personalized customization services and technical support.
Jiangnan Valve Co., Ltd. Holding Group
Jiangnan Valve provides customers with high-quality butterfly valve products with its exquisite craftsmanship and strict quality management. The company pays attention to the details and quality improvement of the products, and strictly controls from raw material procurement to production and processing to ensure that the quality of the products meets high standards. At the same time, Jiangnan Valve also pays attention to communication and cooperation with users, providing users with personalized customization services and technical support.
Chaoda Valve Group Co., Ltd.
Chaoda Valve Group has occupied a place in the butterfly valve market with its excellent quality and professional technical strength. The company pays attention to the technological innovation and quality improvement of products, and continuously launches new products that meet market demand. At the same time, Chaoda Valve also performs well in after-sales service, providing users with timely and professional technical support and solutions.
Note: The ranking order of the above butterfly valve manufacturers does not represent the quality of the valve.
Butterfly Valve | Knowledge Encyclopedia
What is a Butterfly Valve
Butterfly valve refers to a valve with a closing part (valve disc or butterfly plate) as a disc, which rotates around the valve axis to achieve opening and closing. It is mainly used for cutting and throttling on the pipeline. The butterfly valve opening and closing part is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve the purpose of opening and closing or regulation.
1. Structure of butterfly valve
The butterfly valve is mainly composed of valve body, butterfly plate, valve stem, sealing ring and transmission device. The valve body is cylindrical, with a cylindrical boss on the upper and lower parts for installing the valve stem. The butterfly valve is mostly connected to the pipeline by flange; if the clamp connection is adopted, its structural length is the smallest. ?The valve stem is the rotating shaft of the butterfly plate, and the shaft end adopts a stuffing box sealing structure to prevent the leakage of the medium. The upper end of the valve stem is directly connected to the transmission device to transmit torque. The butterfly plate is the opening and closing part of the butterfly valve. According to the connection type, it can be divided into flange connection and clamp connection; according to the transmission mode, it can be divided into manual, gear transmission, pneumatic, hydraulic and electric.
The angle from full opening to full closing of the butterfly valve is usually less than 90°. The butterfly valve and butterfly stem themselves have no self-locking ability. In order to position the butterfly plate, a worm gear reducer should be installed on the valve stem. The use of a worm gear reducer can not only make the butterfly plate have self-locking ability and stop the butterfly plate at any position, but also improve the operating performance of the valve.
2. Working principle of butterfly valve
The valve disc is a disc. Through the rotation of the valve stem, the valve disc rotates 90° within the range of the valve seat to realize the opening and closing of the valve. It plays a shut-off role in the pipeline. It can also adjust the flow. ??
Advantages of butterfly valve: simple structure, light volume, easy operation, good sealing.
3. Classification of butterfly valves
Butterfly valves can be divided into three eccentric (Triple offset )butterfly valves, high performance butterfly valves (also called double-eccentric butterfly valves), and center-line butterfly valves (also called rubber valve seat butterfly valves) according to the structural form.
According to the sealing form, they can be divided into soft sealing type and hard sealing type (hard sealing butterfly valves are divided into multi-layer sealing butterfly valves and pure metal sealing butterfly valves). Soft sealing type generally uses rubber ring sealing, and hard sealing type usually uses metal ring sealing.
4. Selection principles of butterfly valves
- Since the pressure loss of butterfly valves is relatively large compared with gate valves and ball valves, they are suitable for pipeline systems with less stringent pressure loss requirements.
- Since butterfly valves can be used for flow regulation, they are suitable for pipelines that require flow regulation.
- Due to the limitations of the butterfly valve’s structure and sealing materials, it is not suitable for high-temperature and high-pressure piping systems. The general working temperature is below 300°C and the nominal pressure is below PN40.
- Since the butterfly valve has a relatively short structure length and can be made into a large diameter, it is advisable to use a butterfly valve in situations where the structure length is required to be short or a large-diameter valve (such as DN1000 or above).
- Since the butterfly valve can be opened or closed by rotating only 90°, it is advisable to use a butterfly valve in situations where fast opening and closing are required.
Summary
China’s valves have been developing rapidly in recent years, and the ranking of butterfly valve suppliers has been changing. When we choose a butterfly valve factory, we need to combine our own needs, such as quality, price, service and other factors, to choose a butterfly valve manufacturer that meets our requirements.
Post time: Jul-04-2025