On November 18, 2010, Sinotruk Family Co., Ltd.'s Yantai Concentric Sales Center opened a grand business in Zhifu District of Yantai and will meet the demand for after-sales service parts in the vehicle market in Yantai and Weihai. Check Valve is usually used for stopping back flow of medium. Check Valve Check Valve,Brass Check Valve,Spring Check Valve,Water Check Valve Ningbo Jiekelong Precision Manufacturing Co., Ltd. , http://www.jklvalve.com
The opening ceremony was attended by Wang Yuechang, deputy general manager of China National Heavy Duty Truck Parts Sales Department, Jiang Guogang, Assistant to General Manager, Wang Lin, Assistant to General Manager and Director of Marketing Department, and Tang Shijun, Director of Department of Resource Protection; Hao Yuntai, Deputy Manager of Sinotruk Sales Department Qingdao Branch. Wen Hongbing, Manager of Jiaodong Branch of CNHTC Commercial Vehicle Sales Department, Chao Chao, Regional Manager of Lubei, CNHTC Parts Sales Department, Tang Xilei, General Manager of Yantai Tongxin Sales Center, Liu Xinzhang, Deputy General Manager, 4S shops and service stations in Yantai and Weihai, All accessories dealers are present.
Wang Yuechang, Deputy General Manager of China National Heavy Duty Truck Parts Sales Department, delivered a speech on behalf of China National Heavy Duty Truck Corporation and introduced to the guests the 2010 business performance of China National Heavy Duty Truck Parts Division and the development of the marketing network. He also wished the Yantai Concentric Sales Center to start its business. Jiang Guogang, assistant to the general manager, awarded the brand for the sales center of Yantai Concentric Sales of China National Heavy Duty Truck Parts. Hao Yuntai, deputy manager of China National Heavy Duty Truck Sales Qingdao Branch made a wonderful speech at the ceremony. 
China National Heavy Duty Trucks Yantai Tongxin Sales Center will provide services to CNHTC's partners and users of CNHTC to increase the brand awareness and market share of China National Heavy Duty Trucks and relatives, and steadily promote the entire vehicle market in China's heavy trucks such as Yantai and Weihai. healthy growth.
The maximum permissible leakage of the check valve with non-metal elastic seals is zero, and that of the check valve with meal seals is 0.1xDNmm3/s. Therefore, QC passed valves with metal seals possibly have slight leakage. Hence, in the applications where check valves must not have any leakage, non-return valves with soft seals should be used.
Nominal pressure of Brass Check Valve is 1.6MPa and medium temperature for metal seal is -20℃~150℃, and medium temperature for non-metal seal is -20℃~100℃. When the non-return valve is used for saturated steam, the pressure of the saturated steam should be≤0.6MPa.