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  • Factors to Be Considered in Butterfly Valves' Design (Part Two) 
    Posted: 08/12/2017 16:06:52 Hits: 3

    2. Process conditions We must fully understand the process conditions of butterfly valves' process systems before we design butterfly valves, and the process conditions include media's types (gases, liquid, solid phase and two-phase, multiphase mixture, etc.), medium temperatures, medium pre...

  • Factors to Be Considered in Butterfly Valves' Design (Part One)
    Posted: 07/27/2017 16:48:33 Hits: 9

    An simple introduction of butterfly valves Butterfly valves are kinds of regulating valves that have simple structures, which can be applied to controlling flows of various fluids, such as air, water, steam, corrosive media, mud, oil products, liquid metal and radioactive media. Butterfly valves'...

  • The Performance of Ball Valves
    Posted: 07/20/2017 17:09:24 Hits: 6

    The Performance of Ball Valves The ball channel of the ball valve is circular; the circular flow runner of the non-reduced ball is connected with the circular flow runner of the valve body, which forms a straight section. So the ball valve has small flow resistance. According to different working co...

  • The Characteristics of Valves' Outer Leakage
    Posted: 07/06/2017 17:05:45 Hits: 8

    1. The harms of outer leakage  There is no lack of inflammable, explosive, toxic, corrosive media in industrial production. The media entering the atmosphere through the outer leakage of valves will cause more damages than inner leakage. Reasons are as follows:  If the media are corr...

  • Differences among Single Offset Butterfly Valves, Double-offset Butterfly Valves and Triple Offset Butterfly Valves
    Posted: 05/08/2017 17:17:16 Hits: 18

    ​1.Centerline butterfly valve A centerline butterfly valve features in the structure that the axle center of valve stem, valve disc and body are in the same position. It has simple structure and is easy to manufacture. The common-used rubber lined butterfly valve is also a sort of centerline ...

  • The Introduction of Valve Connection and Valve body Material
    Posted: 02/09/2017 11:44:47 Hits: 12

    Valve is a control unit in fluid conveying system, with functions of cut-off, regulation, guidance, pressure regulator, pressure relief, diversion and effusion, preventing the reverse flow, etc. All kinds of valves from the most simple globe valve to extremely complex and automatic control system ha...

  • Valves in Water System of Heating Air Condition
    Posted: 09/23/2016 16:07:21 Hits: 13

    Common valves in water system of heating air condition include gate valve, globe valve and butterfly valve.   Gate vale For its moderate length, rotary adjusting rod and good regulating performance, gate valve is widely utilized in large caliber pipes.   Globe valve  Glo...

  • Features of Pull Rod Welding Ball Valve
    Posted: 09/23/2016 16:07:21 Hits: 19

    Pull rod welding ball valve has impressive performances in various industries. Because of excellent properties and high reliability, pull rod welding ball valve attracts more attentions than cast steel ball valve. Currently, pull rod welding ball valve has been widely applied in urban gas, urban h...

  • Learining How to Choose Materials for Gas Valves
    Posted: 09/23/2016 16:07:21 Hits: 15

    The materials and the quality of gas valves are so important that their disqualification will lead to leakage in-or-outside the body of the valve. If the strength, rigidity and overall performance of the components of the valve body cannot meet the requirements or even break, it will result in the...

  • Influences of Temperature on High Vacuum Butterfly Valve
    Posted: 09/23/2016 16:07:21 Hits: 10

    When high vacuum butterfly valve is used, temperature has great influences on its performance.   High temperature impacts on high vacuum butterfly valve: When the valve is used in the scope of creep temperature, prestressing force on bolts falls due to flanges, bolts and gaskets looseni...