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  • How to Improve the Service Life of Valve Filler?
    Posted: 02/17/2017 10:54:35  Hits: 5
    In the design of valves, the valve filler of lift valves are asbestos packing, grafoil and V type PTFE. But these filler are limited by the times of opening and closing of valves. With the increasing of opening and closing times, the filler will be weared and the gap will increase. The valve will le...
  • How to maintain check valves?
    Posted: 01/12/2017 17:50:15  Hits: 14
    As automatic valve, the function of Muffle check valve is to prevent the media flow backward into the pipeline. It's mainly applied to one-way medium flow pipeline to avert accidents.     The maintenance of Muffle check valve:    Headstock piece should be in the closing ...
  • The Main Reason for Noise of Pressure Relief Valve
    Posted: 08/30/2016 11:55:57  Hits: 58
    The main reason for noise generated by pressure relief valve can be divided into three parts: mechanical vibration noise of pressure relief valve, hydrodynamic noise, aerodynamic noise. Noise generated by Mechanical vibration When the fluid flows, the component of pressure relief valve, pneumatic co...
  • Valves Used for Flue Gas Desulfurization
    Posted: 08/18/2016 16:40:13  Hits: 28
    Flue gas desulfurization is the main measure used to control emission of sulfur dioxide in current coal-fired power plant. Among that, limestone-gypsum flue gas desulfurization is the most mature technology having been the mostly applied around the world. Valves are control device used to deal with ...
  • Methods Used to Install Flanged Valves
    Posted: 07/08/2016 16:00:01  Hits: 28
    The followings are the methods which used to install flanged valves: 1. The surface of valve and piping flange should have damage, scratch and other defects. Besides, they should be kept clean. Especially when valve adopts metal gasket, grooving on flange disc should coincide with gasket. Flange di...
  • Properties of V-port Ball Valve
    Posted: 03/02/2016 17:51:20  Hits: 289
    V-port ball valve also called as V-port stop valve or V-port controlling ball valve, is a kind of trunnion ball valves. It is also single-seat sealing ball valve, having the best controlling performance in all of ball valves. The V port has shearing with the metal seat, especially suitable for media...
  • Installation Considerations of Ceramic Valves
    Posted: 12/28/2015 14:51:12  Hits: 603
    As the new products, ceramic valves now have been widely used in thermal power plants, iron and steel, petroleum, chemical, papermaking, bio-engineering and other industries. And there are five points which you should pay attention to when installing and maintaining a ceramic valve. 1 Ceramic valve...
  • Advantages of Fully Lined Plug Valve & Sleeved Plug Valve
    Posted: 12/03/2015 11:50:47  Hits: 582
    Advantages of Fully Lined Plug Valve & Sleeved Plug Valve: 1. Working media flowing directly, fully lined plug valve and sleeved plug valve have the advantages of small pressure loss and faster operating speed. What's more, with just 90 degrees rotation, the conical plunger can easily make ...
  • Introduction and Installation of Y Strainer
    Posted: 11/10/2015 16:58:57  Hits: 657
    Y-type strainer is often used in steam system, which usually installed on the upstream of the trap, control valve and other equipment. To facilitate maintenance, the end of the strainer pipe is removable. And there can be a discharge connection on the cover. Y-type strainer has the advantages of ad...