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  • Innovation of Chinese Pneumatic Control Valve
    Posted: 06/05/2015 09:28:27  Hits: 310
    Pneumatic control valve industry in China is facing great competition and the future trend of pneumatic control valve is the concern for businesses and customers. It has become an important topic in valve market. Pneumatic control valve plays a very important role in automatic control of modern fac...
  • Some Knowledge of Eccentric Semi-ball Valve
    Posted: 05/29/2015 09:09:34  Hits: 254
    Economic development has provided the safeguard for the progress of many industries. For valves concerned, after decades of development, China's valves are strong enough to compete with the international valves. Therefore, for new users, it is very important to know some information about eccent...
  • Features of Trunnion Mounted Ball Valves
    Posted: 05/23/2015 17:22:00  Hits: 347
    1.Blocking and excretion: with spring preload floating seat, no matter the trunnion mounted ball valves are in full open or closed situation, the upper and downstream of the seat can block the fluid. Also, the retentate in the valve cavity can be discharged by drain valve. 2. Automatic pressure r...
  • The Application Field of All Kinds of Valves
    Posted: 05/15/2015 11:18:22  Hits: 257
     Valves are widely used in various industries, such as oil, petrochemical, chemical, metallurgy, electric power, water conservancy, urban construction, fire protection, machinery, coal, food and other industries. At present, on the market, the most-used and most common valves are ball valves, g...
  • Electric Actuator Selection for Electric Butterfly Valve
    Posted: 05/09/2015 11:41:17  Hits: 364
    Electric butterfly valve is made up by butterfly valve and electric actuator, therefore, after the butterfly valve is determined, how to correctly choose electric actuator to meet the engineering need in practical use is becoming important. 1. Allowed value of stem diameter For lifting lever valve,...
  • Reason and Solution for the Failure of Locator Calibration
    Posted: 04/30/2015 07:50:00  Hits: 286
     Usually, when calibrating the locator of small valves, you can use the automatic calibration function of hand operator directly. But sometimes, it may have something wrong. In this case, you can use the manual calibration function instead.  But if both of the functions don not work, you ...
  • Common Materials of Valve Stem
    Posted: 04/21/2015 11:09:12  Hits: 308
    These following factors will have an influence on how to choose the material of valve components. 1. The pressure, temperature and feature of working medium. 2. The force situation of this component and the role it plays in valve structure. 3. Good manufacturability. 4. When meeting the conditions ...
  • The Equipment Features of General Valves
    Posted: 04/14/2015 14:25:11  Hits: 268
    Screwed connection valve:  This kind of connection is usually carried out by processing the valve inlet and outlet into taper or straight pipe thread so as to connect it to the tapered pipe thread or pipeline. However, this connection may lead to large channel leakage, so you have to use sealan...
  • How to Deal With Internal/External Leakage of Glove Valves
    Posted: 04/08/2015 11:33:11  Hits: 411
    For flange leakage, you need to tight the bolt again. If not yet, open the flange to see if there is any damage to the flange gasket. For packing leakage, you need to compress the packing gland. If the packing is too loose, then add more packing. If the leakage is directly on the body, weld it (only...