Special Circular Manual Valve for HVAC Ventilation Duct
Foshan Zhongjing Purification Equipment Co., Ltd.
Guangdong, China
Last Login Date:
Sep 06, 2025
Main Products:
Airshower, Passbox, Laminar Flow Hood, Louver, Damper, Air Filter, HEPA, Flow Clean Bench, Stainless Steel Cabinet
Product Description
Company Info
Basic Info.
Product Description
Zhongjing Circular Air Volume Control Valve and Round Manual Damper for HVAC
| Model | Standard Size (mm) | Actuator | Material |
| Round damper | Diameter 200~600 | 4 types for choice | Stainless steel or Galvanized steel, as per customized design |
1. **Flow Control:** Adjusting the rate at which fluids pass through the system.
2. **Shutoff:** Completely stopping the flow of fluid when necessary.
3. **Pressure Regulation:** Helping to maintain consistent pressure within the system.
4. **Isolation:** Allowing for sections of the plumbing system to be isolated for maintenance or repair without shutting down the entire system.
The structure of a circular galvanized manual valve typically includes several key components:
1. **Valve Body:** The main cylindrical component made from galvanized steel, which provides strength and corrosion resistance.
2. **Handle or Lever:** A mechanical part attached to the top of the valve that allows for manual operation. This can be a simple lever, a wheel (wheel-handle), or even a gearbox for larger valves.
3. **Stem:** A rod that connects the handle to the internal mechanism of the valve. When the handle is turned, the stem moves up or down.
4. **Seal or Seat:** The part where the stem presses against to stop the flow. This is usually made from materials designed to create a tight seal when closed.
5. **Gaskets or Packing:** Materials used to ensure there are no leaks around the stem as it moves within the valve body.
6. **Connection Points:** Ends of the valve where it attaches to pipes or other sections of the plumbing system, often threaded or flanged for secure connection.
7. **Galvanized Coating:** A layer of zinc applied to the valve body to protect against rust and corrosion, extending the lifespan of the valve.
Overall, a circular galvanized manual valve is a robust and reliable component commonly found in residential, commercial, and industrial plumbing systems due to its durability and ease of use.
Founded in 2006, Foshan City Zhongjing Purification Equipment Co.,
Ltd. (Zhongjing in Chinese) is a provincial high-tech enterprise integrating design, development, production, sales and installation services for high-class purification equipment.The company is located in Nanhai, Foshan, a famous manufacturing city in China. The company covers an area of more than 20,000 square meters and has more than 200 employees, including more than 20 R&D personnel, and production technicians account for more than one-third of the total employees.
The products produced by Zhongjing Purification include 6 series of Pharmaceutical factory/laboratory equipment, hospital construction equipment, purification equipment, purification filters, stainless steel products, and purification engineering supporting products, with more than 400 varieties. The products are produced according to the national GMP standard, the US federal FS209E standard and the IS09001 quality certification standard.
Products are widely used in the medical industry, bio-pharmaceuticals, cosmetics, food production, electron-ic products and other industries, and have been serving the Guangdong product quality supervision and Inspection Center,Nanfang hospital,Guangdong Provincial People's Hospital,the First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine,Zhuhai people's hospital, Guangdong Livzon Pharma-ceutical Group Inc., Guangzhou baiyunshan medicine co,Itd,Zhuhai United laboratories,LEE KUM KEE,Wat-sons,FAW-Volkswagen,
Lenovo Group,Beijing Genomics institutionand other well-known enterprises.
All along, our company pays attention to technological innovation, and its products have obtained a number of national invention patents and utility model patent certificates.The company now has a group of imported CNC punching machines, CNC shearing machines, CNC bending machines, fiber laser machines, automatic welding equipment and other advanced production equipment.The company selects raw materials and accessories from well-known manufacturers such as Baosteel, Yongjin, etc., to ensure the manufacture of high-quality products for customers.The company's products sell well all over the country and serve more than 2,000 customers. The company's brand enjoys a high reputation in southern China!
Zhongjing Purification is also the vice president unit of Guangdong Association of Cleanroom Technology, the governing unit of Guangdong Laboratory Design and Construction Technology Association, the member unit of Shenzhen HVAC Cleaning Industry Association, and the member unit of Shenzhen Cleaning Association,a member unit of the Medical Clean Equipment Engineering Branch of China Medical Equipment Association, contributing to the advancement of the industry.
Zhongjing Purification takes "making clean space safer and making customer products more high-quality" as its mission, "becoming a trusted partner of high-quality clean space" as its goal and vision, and "realistic, talented, enterprising, professional, and trustworthy" as its Entrepreneurial spirit; abide by the value concept of "service first, keep improving, Good Quality Management, Dedication, Responsibility , and Create and share together", and wholeheartedly provide customers with high-quality products with reasonable design and well-made, and continue to create value for customers.
Service first - Customer is the God ,we regard ourselves as a member of customers, in order to allow customers to make better solutions, we will understand the needs of customers in more detail and make the best product solutions.
Keep improving-Today's best performance is tomorrow's minimum requirement.
We strive to be the best at everything we do, in order to provide customers with better services and products.
Good Quality Management-We regard product quality as our life, from material selection to processing technology, we strictly control and strive for perfection
Dedication our own post, we do what we should do well, do not need the supervision of others, are self-conscious, result-oriented, and go all out to make achievements.
