• pressure drop of control valve
    knowledge,  other valves

    Press Drop: An Important Selection Criteria for Choosing Control Valves

    Pressure drop, also known as pressure loss, is an important selection criteria for control valves as it’s used in the sizing calculation. Let’s define the term pressure drop, show how it’s calculated, and discuss why it’s important for engineers designing flow systems. Definition of Pressure Loss Pressure drop is the difference in pressure as measured between two points in a pipe with flowing fluid. For a control valve, the pressure drop is the difference between the inlet pressure and the outlet pressure. It varies with the flow. Calculation of Pressure Loss The calculation for pressure drop looks like this △P=P1 + P2. The pressure drop is usually measured in pounds per…

  • knowledge,  other valves,  sanitary ball valves

    Several Common Valve Applications

    Valves can be said to be everywhere in life, no matter the family or the factory, any building can not do without valves. This article will introduce you to several common valve application areas: Field Application Types of Valves Oil plant Oil refining device Most of them are pipeline valves, mainly gate valves, globe valves, check valves, safety valves, ball valves, butterfly valves, steam traps, among which, gate valve demand accounts for about 80% of the total number of valves. Chemical fiber device Chemical fiber products mainly include polyester, acrylic and vinylon. Ball valve and jacketed valve (jacketed ball valve, jacketed gate valve, jacketed shut-off valve) are used. Acrylonitrile device…

  • valve name
    knowledge,  other valves

    Valve Encyclopedia: Ten Basic Types of Valves

    In this passage, I’m gonna explain to you how the globe, gate, ball, plug, butterfly, diaphragm, check, needle, pinch, and safety valves work. I’m also gonna tell you about the different types of valve classification, how valves get their names, and what valves actually do. So let’s start with the basics. How do we name a valve? Almost always, valves get their name from the type of discs used. The disc is the part of the valve that is used to open, close, or regulate the flow through the valve. Regulating the flow is referred to as throttling. Ball valve gets its name because of the ball-like shape of the…

  • other valves

    How to Choose the Right Butterfly Valve?

    The butterfly valve controls the flow of fluid through the conduit by a single valve disc mounted on the central shaft. The disc creates a variable orifice (see Figure 1). Butterfly valves can generally be divided into three basic types: damping valves, elastomeric seat valves, and high-performance valves. Damping valve The damper butterfly valve is actually a butterfly valve without a valve seat (see Figure 2). The valve disc in the valve does not touch the inner wall of the valve body. It does not cut off the fluid; it only decelerates the fluid in the pipe or flue because there is a gap between the outer diameter of the…