Product description

Brass ball valve - Yuanda valve Gost Ball Valves Supplier Gost Ball Valves High Temperature Ball Valves China

Ball valves came out in the 1950s. It is a valve that has been used more and more in thermal systems in recent years. Its superior performance is unattainable by other valves. There is no fluid resistance, lightweight, good sealing performance, no leakage, and can be opened and closed. The advantages of fast switching, non-corrosion by medium, and long service life have gradually gained the favor of enterprise valve selection. However, how to perform routine maintenance and repair of valves in daily operation has also become a work that cannot be ignored by heating companies.
By understanding the working principle of the valve and the characteristics of the product, as well as the operation method and troubleshooting, the corresponding production operation system can be formulated in the company's normal production to ensure the safe operation of the valve equipment.
The correct use, installation, and maintenance of the ball valve are very important, and it is also the content that the heating company must refer to when formulating operating procedures. Scientific management and maintenance of the ball valve during construction can not only ensure safety but also reduce construction and operation management. Pay attention to the following aspects:
1) Use correct methods to load and unload the valve to avoid mechanical damage to the valve. When lifting the valve, do not tie the lifting belt to the valve stem or actuator for lifting. If the valve is operated in violation of regulations, the valve stem will bend, the valve stem seal will fail, and the turbine box will be destroyed.
2) Before the valve leaves the factory, the blind plates or covers should be sealed at both ends of the valve to prevent impurities such as water and sand from entering the valve cavity at the transportation and construction site, causing seal damage and corrosion.
3) At the construction site, the valves should be placed neatly and should not be placed randomly, otherwise the drain valve or the grease injection valve of the valve will be broken and damaged.
4) Before the welding construction of the fully welded ball valve, confirm that the valve is welded in the fully open position to avoid damage to the ball and scratches on the sealing surface caused by welding spatter. The welding temperature between the valve seats is controlled at 140 degrees.
5) After the water pressure test is completed, the water in the valve cavity should be drained to prevent corrosion and freezing.
The valve is the control component in the fluid conveying system. It has the functions of cutting off, adjusting, diverting, preventing backflow, stabilizing, diverting, adjusting the balance of medium flow, etc.
Valves are also one of the most typical equipment in thermal systems. The quality of the valve and whether the valve is reasonably selected according to the characteristics of the valve play a decisive role in the heating quality.
Since these valves are laid in-ground wells, they are not easy to find because they will run, leak, and drip. Under normal circumstances, it will only be discovered when the user complains, the inspection is discovered, or the equipment is damaged.

Daily Maintenance And Maintenance Of Ball Valves
1) For ball valves, regularly check the sealing performance of the valve and check it through the drain valve. If there is internal leakage, follow the steps.
2) According to the frequency of valve movement, inject a certain amount of grease into the valve seat. Generally, a proper amount of grease should be injected after the valve is moved once, and the amount injected each time is 1/8 of the sealing system to avoid impurities in the pipeline to the greatest extent. The back cavity of the valve seat affects the movement of the valve seat, thereby causing sealing failure, while ensuring that the sealing surface is always in a lubricated state, prolonging the service life.
3) For valves with small movements, open and close operations should be carried out once a year, and a certain amount of grease and cleaning fluid should be injected to avoid dry grinding of the ball during movement and reduce the operating torque of the valve.
4) The ball valve should be maintained before winter. The key is to drain the water in the valve cavity and the water in the actuator to avoid freezing and freezing in winter, which will affect the function of use.
5) Add wear-resistant grease to the valve worm gear head actuator every year, regularly check the valve stem sealing, remove rust, and do external protection.
In order to improve the reliability of the valve and prolong the service life of the valve, it is very important to do a good job in the early maintenance and supervision of the valve. Many problems can be avoided through early detection and timely treatment.
Therefore, the management and maintenance of the ball valve must not only strengthen professional training to ensure that the maintenance is scientific, standardized, and safe but also this concept must be changed. Preventive maintenance management and the safety of the heating system must ensure heating quality.
We are ball valve suppliers. If you are interested in our products, please feel free to contact us.

https://www.yuandavalves.com/gb-standard/brass-ball-valve---yuanda-valve.html

Product specifications

Company introduction

Yuanda Brand
Founded in 1994, Yuanda Valve Group Co., LTD. Has made use of the short 30 years to rise and expand at a speed of 100 times. We are advancing with time, updating equipment, elaborately carving out our brand, focusing on developing high-end products, and actively responding to market demands with creativity. Every step we take is a breakthrough in China's valve industry.

In recent years, Yuanda has witnessed a rising awareness in engineering field and international field, established long-term and stable cooperation relationship with famous enterprises and several transnational groups in fields such as petroleum, petrochemical, water conservancy and steel and made its vision a reality. Yuanda attaches importance to after-sales services, continues to improve after-sales service mechanism: it's Yuanda's service philosophy to stay customer-oriented and provide quick-response and quality services. We commit that we are always ready to help no matter where you are.

Tremendous changes have taken place in China's manufacturing industry amid the transition process of Chinese society from high-speed development to high-quality development. The manufacturing industry embraces unprecedented development opportunities. However, the challenges that come along are also crucial to each enterprise. Yuanda adjusted its strategy to change from high-speed development of over 20 years to high-quality development; and change from the largest valve manufacturer in China to the strongest valve manufacturer in China, during which, Yuanda centers on quality, aims at quality customer service, upgrades enterprise against the backdrop of "Made in China 2025", "Industry 4.0" and highlights technical innovation, green development, sustainable development, people-oriented development. We believe that Yuanda will stand out in the manufacturing industry in China with a new brand image in the near future.

Yuanda aims high and embraces all diversities. It attracts best minds from all over the world with a high degree of inclusiveness and provides a stage for purpose-driven people with dreams and passions to showcase their talents and improve self-values. In the principle of "good faith and quality first", we make friends from all over the world and we welcome more friends to join Yuanda and work hand in hand for a better future.

Group Profile
China Yuanda Valve Group Co., Ltd. located in the hinterland around the Beijing, Tianjin and Bohai economic center, it’s founded in 1950s, restructuring on the basis of the former mechanical ministry longyao valve factory. It is the largest valve manufacturer in China engaged in researching and developing, manufacturing and selling middle pressure and low pressure valves. It located in Yincun Town, Longyao County, Hebei Province, there are five branches under the group, the registered capital of 100 million yuan in RMB, and the headquarter covers an area of 400,000 square meters, more than 3,000 staffs. Yuanda has passed the authentication of ISO9001: 2008 quality management system and ISO14001:2004 environmental management system, OHSAS18001:2007 occupational health & safety system, API certification, CE certification, KS certification and ΓOST certification; The brand is evaluated as Famous trademark of china and the famous brand in Hebei province, and the series of the products has been honored as the famous products in Hebei province, and was granted the right of self-management of import and export; and awarded China Quality Credit Enterprise by the China Entry-Exit Inspection and Quarantine Association; and awarded credit management class AA enterpnse by AQSIQ and has achieved Manufacture License of Special Equipments of the People’ s Republic of China, Grade A, and B1、B2、B3 foundry certification; and has taken part in the valve Branch Association, China General Machinery Industrial Association.

Yuanda is also the first class supplier of Sino Petroleum Corp., China national Petroleum Corp.(CNPC) and the member of China Guodian Corp. supply network and the member of China Huadian Corp. supplier network, China Power Investment Corporation, China Huaneng Group, China Datang Corporation. Yuanda is the qualified tenders of the China Nonferrous Metals Industry Group, China National Chemical Construction Group, Shougang Group, Wuhan Iron and Steel (group) Corp, Hebei Iron and Steel Group Co., Ltd. Yuanda Valve Group manufacture the products include : GB/JB(china), API, ANSI, AWWA, DIN, JIS, ΓOST, NF and etc. the material include HT200、HT250、QT400、QT450、WCA、WCB、WCC、CF3、CF8、CF3M、CF8M、1Cr5Mo、LCB and etc. The products have 12 kinds, 200 series and 4000 sizes, include gate valve, globe valve, ball valve, butterfly valve, check valve, diaphragm valve, reducing valve, plug valve, traps valve. Totally amounted 80,000 tons per year. All the products are widely used in petrol, petro-chemical, chemistry, power, metallurgy, water conservation, construction, pharmacy, and water drainage fields. Yuanda Valve Group has established a sound cooperation relationship with US Crane Co,Ltd. Japan Yamato, Korea Wondae TGK Co.Ltd. Korea Daehwa Co., Ltd., Russia ADL and Turkey FAF. Our products sell well on the market of Germany, England, French, Italy, Brazil, Poland and Europe, central Asia and west Asia, all about 30 countries and areas. Yuanda brand enjoyed a great reputation among our customers.

Our website:www.yuandavalves.com

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