Ball valves are a type of piping equipment that shuts off or controls the flow in a pipeline by using a hollow sphere and round seats held in a valve body. The 4 types of ball valves single body, split body, top. There are two basic technologies for the design of ball valves, floating ball design and trunnion mounted ball design. Every engineering process requires the ability to stop, start and regulate throttle flow. Ball valves types, construction, applications and advantages posted by akki on 2. Ball valves are suitable for use with fullon, fulloff flow control in general service. The press systems ball valve design includes a leakdetection feature. Butterfly valves use a similar principle to ball valves. The valve seat on the other hand is made of two pieces. Valves can be categorized into the following types, based on their operating mechanism. A trunnion ball valve has additional mechanical anchoring of the ball at the top and the bottom, suitable for larger and higher pressure valves say, above 10 cm and 40 bars. Process valves symbols icons for planners, designers and. For example, they can be used to divert the flow of oil from one tank to another.
Different types of valves used in piping a complete. Downstream sealing slab gate valve upstream and downstream sealing slab gate valve the latter design may be used to provide double isolation in which the gate is free to float on the end of the stem, but operating forces are higher than for comparable downstream only sealing types. There are a few types of ball valves related to the attachment and lateral movement of the ball. Each type of valve has been designed to meet specific needs. What types of valves are used in plumbing and where are. The following article will cover the general mechanism and function of the most typical of these valves used in steam systems, such as ball valves, butterfly valves, globe valves, gate valves, and diaphragm valves according to jis, a valve is defined as.
Chapter 4 describes digital valve controllers, analog positioners, boosters, and other control valve accessories. Types of valves use in plumbing there are different valves used in plumbing applications so you might want to understand when and where to use it. Gate valve is the most common type of valve in any process plant. This 3d animated video explains how the ball, butterfly, diaphragm, gate, globe, needle, pinch, plug, relief and safety valves work. Control valve types gate valve, globe valve, ball valve. Ball valve, for onoff control without pressure drop. Types of ball valves ball valves are basically available in three versions. Threeway ball valves are especially useful because they can be set up in ways that simplify the control of gas and fluid flow. Used in many hydrocarbon process applications, ball valves are capable of throttling gases and vapors and are especially useful for lowflow situations.
Again the orientation of the butterfly determines the flowrate. Our online and pdf flow control valve catalogs provide. A full port ball valve has an oversized ball so that the hole in the ball is the same size as the pipeline resulting in lower friction loss. To select the correct valve to fulfill these functions properly, an outline of the different types of valves and their features is given below. The ball valve is an inexpensive alternative to other valves. In a floating ball valve, the ball is held in the position by the compression of the two elastomeric seats against the ball. Forxar offers a variety of high quality ball valve and their types. A t60m thermal 60 series ball valve maintenance instructions. Some valves are capable of throttling flow, other valve types can only stop flow, others work well in corrosive systems, and others handle high pressure. Utilizing an otherwise solid ball with a hole bored through the center, a ball valve is a quarter turn valve that is normally open, or normally closed. Get free 2day shipping on qualified 1, ball valves products or buy plumbing department products today with buy online pick up in store.
See the highlighted portion in the image and remember as you will see the difference when i will explain to you about the trunnion mounted valve. Valve design testing manufacturing international standard download free. Maintenance instructions for steam 60 series ball valves. When the solenoid valve is energized, the ball valve should open and when deenergised the ball valve should close. This type of ball valve is known as cavity filler ball valve. Assembly instructions for 60 series ball valve locking handles. Forxar industries can manufacture and supplythese at most affordable prices and excellent quality. Butterfly valve butterfly valve and globe valve butterfly valve and ball valve butterfly valve and gate valve check valve gate valve globe valve ball valve valve shaped like a. Mechanical science module 4 valves a free resource for. If the ball valve is used to control the flow, cavitation and potential damage of the ball surface particles in media can decrease the lifetime of the product and result in unstable system flow control. A valve in which the fluid flow is regulated by a ball moving relative to a spherical socket as a result of fluid pressure and the weight of the ball.
Pdf an actuator is a machine or component installed on the top of an industrial valve for automatically moving and controlling the valve. Whether you are looking for single piece ball valve, two piece ball valve or three piece ball valve. Industrial valves books handbooks and training materials related to industrial valves design operation and maintenance. Control valve basics online video course free online. Solenoid valve rating is 110v plus or minus 10% and 50 hz. Many different types of manual valves are used in industrial applications worldwide.
The perforation through the ball allows media travel when in line with the inlet and outlet ports, and visa versa. Bronze ball valves for use in commercial and light industrial applications. Ball valves are shutoff valves and must as such always be in a complete opened or closed position. 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. Lead free bronze domestic ball valves lfb6080g2, lfb6081g2 2piece, full port, lead free bronze ball valves these forged ball valves are used in commercial and industrial applications for a full range of liquids and gases. Ball valve learn about floating and trunnion mounted. The fullport valve has an inside diameter equal to the inside diameter of the pipe. Major components of the ball valve are the body, spherical plug, and seats. This produces zero clearance between the lifter unit and push rod, and between the rocker arm and valve stem.
Due to their material and construction, ball valves are not appropriate for use in. Please note that full bore valves in sizes dn 15 to dn 25. The valve guard, poppets, springs and wear shims are conventional. The slots relieve upstream pressure when the valve is in closed position and prevent seat damage. Click on the link to learn about each of valve in more detail.
In case of a heavy duty application the inspection interval has to be abbreviated. The following types of valves are used in a variety of applications, these descriptions may provide a basic guideline in the selection of valves. Twoway and threeway ball valves are the most common types of ball valves. Types of manual valves tlv a steam specialist company. The fullport valve has an internal diameter equal to the inner diameter of the pipe. Process valves symbols icons for planners, designers and piping engineers.
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 download from here free. Complete introduction selection sizing of control valves, gate valve, butterfly valve,safety an d relief valves for power plant operators and oil and gas process industry. Ball valves article about ball valves by the free dictionary. Quarterturn valve the disk is a solid plug with a bored used as onoff stop valves capable of providing bubble tight shutoff ball valve rotary motion quarter turn valve uses a ballshaped disk to stop or start flow quickacting type smaller and lighter than gate valve of same size and rating butterfly valve. Plug valves lubricated balancedsleeved, linedexpandinglift. Ball valves use a metal ball with a hole bored through the center, sandwiched between two seats to control flow. When the hole in the ball is orientated in the same direction as the pipe, this will result in full flowrate. This free online course industrial engineering control valve basics will give you all the information you need to know about valve types and can also be used as a refresher course. With the new ultrapure valves added to our existing highquality product lines, milwaukee valve remains your single source for virtually every residential, commercial or institutional application. They are 2way inlet and outlet, 2position open and closed valves that are used for shutoff or isolation of a system, or a loop or component within a system. Common types ball valves ball valves, as the name implies, have a ball with a hole drilled through the centre swivel mounted within the valve body. Suitable asco make model aeb 342c3 or equivalent with 38 pneumatic tubing flame proof for onoff application. Specification for ball valves bharat heavy electricals. 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.
Chapter 5 is a comprehensive guide to selecting the best control valve for an application. Ball valves quarterturn 2way ball valves are by far the most common type of process control valve. In terms of main body parts single piece two piece 3 piece design. Valves are used to control and regulate the flow of water so here you will have the pros and cons of. Learn about the different control valve types used in engineering. Ball valves with presstoconnect end connections are quick and easy to install. Ball valves must be inspected at regular intervals for tightness, function and damage. Stainless steel replacement ball kit for 67 series ball.
It is a linear motion valve used to start or stop fluid flow. Gate valves wedgeparallel slabparallel expandingparallel slide. Valve types and features the three basic functions of valves are. When the valve is closed as at a cam on the lower side, oil from the reservoir opens the ballcheck valve and raises the plunger by passing between it and the cylinder bottom. A60 fire and s60 steam series ball valve panel mounting instructions.
419 1004 174 9 17 680 859 765 1522 42 687 263 1447 996 1028 643 264 581 818 876 372 864 450 945 814 1324 249 21 270 762 1203 597 62 1316 1167 740 958 1182