Types of ball valve pdf

However, instead of a ball mounted in the valve body a circular disc called a butterfly because the two half circles around the vertical shaft appear like wings. Our ball valve program covers floating type ball valves, and trunnion mounted. These valves are often used to direct flow between. For this reason, most ball valves are referred to as quarterturn valves. Ball valves use a metal ball with a hole bored through the center, sandwiched between two seats to control flow. The two key types of ball valves are the floating and the trunnion designs side or.

Construction and materials flanged floating ball valves. The essential element in the ball valve is a ball which has a hole in the the middle. Types of valves classification and description valvias. The ball is rotated usually 90 degrees by a shaft that protrudes outside of the valve body and is connected to some form of operator. Dimensions of diameters of drills iso 5211 refer to table from page 60. Types of ball valves floating, trunnion projectmaterials. Major components of the ball valve are the body, spherical plug, and seats. Endtoend dimensions of valves are also used for the design of ball valves. They are 2way inlet and outlet, 2position open and closed valves that are used for shutoff or isolation. Types of valve used in piping learn about 9 types of. Classification of gate valves is usually made by the type disk used. Valves can be categorized into the following types, based on their operating mechanism.

Note 1 the balltype valves have dead spaces for structural reasons. Pdf an actuator is a machine or component installed on the top of an industrial valve for automatically moving and controlling the valve. The following types of valves are used in a variety of applications, these. Ball valve, for onoff control without pressure drop. In terms of main body parts single piece two piece 3 piece design. Type data sheet ball valve butterfly valve with pneumatic.

Direct flange ball valve khzf3 khzf6 up to dn50 pn420 79 iso 6164 flanged ball valves khf dn 80 up to pn400 81 32 way ball valves khb3k up to dn50 up to pn500 85 changeover low pressure. A ball valve is a quarterturn valve used for shutoff application. The econ wafer type ball valve with din flange connections can be supplied in. Many different types of manual valves are used in industrial applications worldwide.

The following article will cover the general mechanism and function of the most typical of these valves used in steam. Download valve catalogue, pdf drawing, ga drawing, cross sectional arrangement design drawing, 3d model drawing, valve strainer filter sight glass flow indicator operation and maintenance manual. Valve types and features the three basic functions of valves are. Plumbing valves are controlled liquid passes from one pipe to another, can be found throughout a home. Please note that full bore valves in sizes dn 15 to dn 25. The fullport valve has an inside diameter equal to the inside diameter of the pipe. Again the orientation of the butterfly determines the flowrate. Bubbletight sealing performance with hypatite ptfe ball seats. A fire prevention valve which has a weighted lever hold open by a wire and fusible link which. If quality is the issue, i usually supply a list of. Fundamentals of valves and their types instrumentation tools. The valve guard, poppets, springs and wear shims are.

Opening or closing a ball valve too quickly can cause fluid hammer. Examples of the common types are the globe valve, gate valve, ball valve, plug valve, butterfly valve, diaphragm valve, check valve, pinch valve, and safety valve. Both valve facetoface dimensions and body facetoface dimensions are compatible. When the hole in the ball is orientated in the same. There are two common types of ball valves, floating ball and trunnion. Ball valves are suitable for use with fullon, fulloff flow control in general service. To select the correct valve to fulfill these functions properly, an outline of the different types of valves and their features is given below. Different types of valves with pdf file engineering. Ball valves quarterturn 2way ball valves are by far the most common type of process control valve.

The slots relieve upstream pressure when the valve is in closed position and prevent seat damage. Control valve types gate valve, globe valve, ball valve etc. The trunnionmounted ballvalve design is used with splitbody large size valves, whereas the floatingball design is the most common design for all other types of ball valves. Unlike other valves, ball check valves use a spherical ball inside their bodies to help control the flow direction in pipes and systems. Butterfly valves use a similar principle to ball valves. Hypatite ptfe ball seats, standard stem seals of kitz ball valves, are made of denatured ptfe, a molecularly reinforced ptfe copolymer, and specifically engineered for high. A valve in which a ball is free to rotate in any direction. Types of manual valves tlv a steam specialist company. The valve opens and closes the flow of the fluid via a builtin ball, that rotates inside the valve body. A floating design ball valve sandwiches the hollow ball between two or more cupped seats that form a tight seal between the body and the ball at the inlet and outlet ports of the valve body.

Different types of valves used in piping a complete. Due to their material and construction, ball valves are not appropriate for use in applications that require partial opening of. The following types of valves are used in a variety of applications, these descriptions may provide a basic guideline in the selection of valves. Solid wedges, flexible wedges, and split wedges are used in valves having inclined seats. There are several different types that are typically used in pipelines, some of the most popular include.