Ball valve learn about floating and trunnion mounted ball. In some valve designs, the pressure of the flow fluid itself or pressure. Nonremovable antistatic devices assure electric continuity between ball and body through the stem. Steel ball valves kitz corporation uk office valve. All the ball float shutoff valves i could find were designed as a simple shutoff valve to prevent overfilling of large storage tanks. The valves are offered in combination of size, pressure class, material of construction, endconnection, etc. The barrier to flow is a ball which is rotated 90 degrees to the direction of flow. Ktm virgo series floating ball valve brochure, ktm. 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. Ball valves floating series f fractional balon continues as an innovator in valve design with the extension of our series f threaded end ball valve. 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.
Floating ball valves are more than just floating ball valves. They can either be selfrelief seats, as illustrated in fig. They are characterized by simple design, easy maintenance, low cost and quick delivery. Scv reserves the right to change any technical design and dimensional. A floating ball valve has a ballshaped closure member that is not fixed to the valve stem and is allowed some freedom of movement through the valve cavitys key slot. 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. The torque is also lower than that of trunnion mounted design. Many ball valves do not have bonnets since the valve body is put together in a. Trunnion mounted ball valves are utilized in some of the most demanding processes in practically every industry. Forged steel floating ball valves for heavyduty, reduced maintenance performance. They do make the simple ball float shutoff valves but they are much too large for my application. The long experience gathered during more than 60 years of activity ensures that dafram is one of the most famous and competitive ball valve companies in the world.
The present study deals with the design of a high pressure ball valve. Ball valve design feature valve building engineering scribd. For more information on cut floating ball valves an. Trunnionmounted ball on larger valves allows the ball to float in case of fire and shut off on the secondary metal seat. Floating ball valve catalog api 6d monogrammed iso 9001. Invaco, manufacture ball valve siz e from 1 2 to 8 15mm to 2 00mm with pressure range from class 150 to class 2500 and equivalent en pressure ratings. Valves design features ball valves are straightthrough flow valves which provide positive shutoff with minimal pressure drop and flow tur bulence. Trunnion mounted valve is a solution to the problem of excessive torque required by a floating type valve in highpressure service. The floating design utilizes natural line pressure to press and seal the ball against the downstream seat. Body construction can be two or three pieces, bolted or screwed body, made by forging, forged or rolled bar. We reserve the right to modify or improve the designs or specifications of. In this design steam and ball work as a single unit. This valve is economical and includes many of the premium design features found in the wkm dynaseal 310 carbon steel ball valve. The floating ball design allows for positive shutoff in either flow.
Ball valves ball valves, as the name implies, have a ball with a hole drilled through the centre swivel mounted within the valve body. Trunion mounted ball valves are uses a spring mechanism andor line pressure assistance to drive the upstream seat against the stationary ball. Cv ratings of full bore valve manufacturer of floating ball. Dn 25 nps 1 up to dn 50 nps 2 trunnion ball design. The critical components are analyzed using the finite element analysis. Ta1c3 class 300 full bore ball valve designed to api 6d cast steel ball valve, twopiece body design, double block and bleed, blowoutproof stem, antistatic device, spring loaded seats, firesafe to api 607api 6fa cast steel ball valve, twopiece body design. Floating ball design features floating ball design stainless steel trim adjustable packing levergear included tested to api 598 8. Simple ballfloat shutoff valve design valve engineering. Proven technology for individual valve solutions worldwide. Balons value added approach to valve automation has made the actuation of balon ball valves, either currently in service or new valves, simplistic while adhering to the highest levels of quality and accuracy our customers expect. Ball valves for onoff and those that are used in control. All gwc ball valves have antistatic devices which provides contact between stem and ball, and stem and body to eliminate static electricity. Aop 0611 4 flaopballseriesfb01 series fb floating ball valve introduction aop offers a wide range of floating ball valves. Ball valve, leakage, design, manufacturing, casting, analysis.
An advantage of trunnion ball design over floating ball is the lower operating torque of the ball. It is open when the ball s hole is in line with the flow and closed when it is pivoted 90degrees by the valve handle. With our state of the art manufacturing techniques, our. Because the ball and stem in a ball valve are suspended on nonmetallic parts, i. All books are in clear copy here, and all files are secure so dont worry about it.
Fire safe seat sealing when static are generated and concentrated on the ball. When floating seats are used in a floating ball valve, they can be one of two basic designs. Instead, the line pressure forces the upstream seat onto the ball to cause it. Integrating components to provide the ideal automation system can be a daunting task. Uncompromising commitment to high quality and reliable valve performance. With the exception of the actuator, balons actuation package will include everything required to safely and precisely mount an actuator to a floating balon ball valve. Product range flanged floating ball valves shell material class kitz product code bore 1 nominal design size body nps 12 34 1114 112 2212 345681012 page dn 15 20 25 32 40 50 65 80 100 125 150 200 250 300 carbon steel class 150150sctdz f split 14 class 150g150sctdz f split 14 class 150150sctazm r uni 26. Pdf published april 28, 2009 ball float valves the chemline bf series ball float valve is a cost effective level control device for water or nonhazardous liquids. Post trunnion 2 rp 6 rp plate trunnion 6 fp and above. These valves are quick opening and provide a very tight closure on. Ball valves floating small bore apv ball valves small diameter dd 1 305 4.
A ball valve is a form of quarterturn valve which uses a hollow, perforated and pivoting ball to control flow through it. Api 6a valves floating ball valves trunnion mounted ball valves. Ive been looking for a simplistic ball float shutoff valve for weeks and cannot find them anywhere. Floating ball valves floating ball valve is a form of quarterturn valve which uses a hollow, perforated and pivoting ball called a floating ball to control flow through it. Design, construction, marking for floating ball valves product overview bfe manufactures the most complete line of quality ball valves, and can provide the exact ball valves and actuators to meet the most demanding application requirements. When one talks about floating ball valves, most people think of a valve with fixed seats and a floating balls usually smaller valves inrelatively low. Additionally, external trunnion design available in certain sizes. The key feature is that the ball does not shift as it does in a floating valve to press the ball into the downstream seat. Floating ball valves typical application is for smaller sizes up to 6 inches and lower pressure classes. This design also provides better stem sealing as the packing is relocated away from the temperature of the process. This is particularly advantageous when the ball valve is actuated because it reduce the size of the actuator and hence the overall costs of the valve actuation package. The valves are of floating ball design where the ball moves towards the downstream seat, under pressure, to effect a.
As the ball is rotated, in the fully open position the valve provides the through conduit or full bore required for unrestricted flow of the fluid and scrapers or pigs. Three piece ball valves is also offered with nonfire safe design. Soft seated 3piece body trunnion mounted ball valves t60s series1 3 component drawing 4 design features 5 construction and materials 7 valve dimensions and operators 9 material example metal seated 3piece body trunnion mounted ball valves t60m series1 14 component drawing 15 design features 16. Llever, ggear 3 worm gear operation is standardised for the sizes marked with the prefix g on each kitz product code. We have also incorporated features required by specific end users such as petrobras, aramco, bp and pemex including iso 158481,2 emissions testing. Fullbore and regularbore designs, variety of end connections and materials to suit customer requirements. Pbv flanged floating ball valves installed in a typical manifold application.
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. As the area on which the pressure acts is much lower. Kitz steel ball valves, floating ball design 002 design and inspection standards of kitz flanged ball valves product coding for kitz flanged ball valves pressuretemperature ratings general valve design shell wall thickness facetoface dimensions end flange dimensions and flange gasket facing pressure test fire test body resilient sealing parts. Features your pipeline to quality for tank level control will not corrode. Design and inspection standards of kitz flanged ball valves. Generally, floating ball valves are used for lower pressure ratings and smaller sizes. Seat designs, stembearing system and stem seal arrangements ensure consistent minimal torque values. Rugged bolted construction, 316 stainless steel ball and stem, and nace standard. Ail manufactures both floating and trunnion mounted ball valves.
Design, specifications and future challenges for cryogenic valves brandon bounds jim tesch bechtel oil, gas, and chemicals valve manufacturers association of america 2017 technical seminar, exhibits, and tour. Ball valve is the most used fluid shutoff valve in upstream oil and gas. The designs have been developed based on our customers requirements. Read online 3 piece bolted body full port floating ball valve book pdf free download link book now. A ball valve is a form of quarterturn valve which uses a hollow, perforated and pivoting ball to. This site is like a library, you could find million book here by using search box in the header. Wkm 320f ball valves can be supplied and certified to meet the requirements of fugitive emissions fe as regulated by iso and api positively retained stem the stem is positively retained and cannot be removed with the valve in service tightsealing floating ball design the ground, polished ball is free to float and mates perfectly with the. Firesafe certified, floating ball, blow out proof stem, flanged connections. The floating ball is not used in high pressure and large sizes for two reasons. Appearance the floating ball valve and the trunnion ball valve are easy to distinguish in appearance. The floating ball valve has simple structure, good sealing performance but the seat material is required to withstand the workload since the sealing pressure is bared by the seat ring. A short shaft like an extension that called trunnion set in the body.
When you specify an aop ball valve, you have selected a premier product. Viza floating ball valves fire safe is designed in accordance with. Ball valve design feature free download as pdf file. A floating ball valve in a closed position, with the ball pushed to the seal on the righthand side. Industryrecognized flanged and threaded end floating ball valves. At emerson, we offer a complete range of products, as well as the expertise to design the. Our floating ball design complies with ansi, asme and api standards. A available in casting and forging b available in casting only.
The key difference beteween a floating ball valve and a trunnion mounted ball valve is how each achieves a line seal. Alternate stop pin designs available for other sizes. Series fb floating ball valve introduction aop offers a wide range of floating ball valves. As you can see, only for the dn50 nps 2 size, you have the choice whether you want to have a floating or a trunnion ball. In a floating ball valve, the ball is held in the position by the compression of the two elastomeric seats against the ball. Our floating ball valves are available in an ex tensive range of designs, materials, sizes and. Valve is of a floatingball design, where sealing takes place by allowing. This manual shall be read in conjunction with manual ltvdep566. Camerons wkm dynaseal 210 ball valve is a twopiece design with a ductile iron body and. Kitz steel ball valves, floating ball design 3 product range 1 bore design. Due to unavailability of high performance seat material, floating ball valve is mainly used in middle or low pressure application.
Manual, bare stem, gear, hand lever, fully automated. In floating ball valves, the ball has some freedom to move along the axis of the valve while having no freedom to. The ball valve is an inexpensive alternative to other valves. Trunnion mounted ball valve 7 dimensions class 150 valve dimensions inmm size nps dn valve valve flange top works weight lb kg cv full open valve torque max. Fire safe design to increase safety, the valve is certified api 607 6fa. Designs for the valves are created by an experienced team of valve experts who have a deep. To keep your operations flowing smoothly, forum offers floating ball valve solutions ranging from durable, flanged floating designs to economical oil patch valves that help prevent stem blowouts and corrosion. Kitz carbon steel, low alloy steel, stainless steel and nickel based alloy. Fb2 two piece forged body floating ball valve material speci. In my opinion you should decide for a trunnion starting with class 600.
The valve may be mounted through a hole in the tank wall and anchored with the lock nut provided. Ball valve learn about floating and trunnion mounted. F ball valve f leading valves design and manufacturer. We have the valve to help lower your costs and achieve maximum process uptime bringing together some of the preeminent floating ball valve brands, our extensive range of full and reduced bore valves allows you to meet your unique process conditions and helps you achieve optimum results. Used in many hydrocarbon process applications, ball valves are capable of throttling gases and vapors and are especially useful for lowflow situations. Includes pressure equalization hole to prevent trapping of pressure in the body cavity. Ktm virgo series floating ball valves are available in a full range of sizes and pressure. Design, specifications and future challenges for cryogenic. The gasification process converts coal to gas using a combination of oxygen and superheated steam.
Daframs factory is located in urbisaglia macerata, in the centre of italy, on an industrial complex covering 32000 square meters. Bonney forge manufactures forged floating ball valves in an extensive range of designs, materials, sizes, pressure classes and end connections that are designed in accordance to asme b16. In the closed position, the ball is pushed against the seat by the pressure of the fluid from upstream and hence can pressure seal the downstream of the valve. Heavy duty construction valve designed to take heavy piping loads and distortion. Our navco floating ball valves are ideal for offshore production, onshore production, unconventional, transmission and storage, topside processing, gas processing, lng, and industrial applications. For this reason, most ball valves are referred to as quarterturn valves. Ball valves are designed using the latest cad software to achieve the highest level of. Company overview kunshan viza is specialized in manufacturing forged steel and cast steel trunnion mounted and floating type ball valves, size from 12 to 40, class from 150lbs to 2500lbs, with body materials as a105n, lf2. A valve is a device or natural object that regulates, directs or controls the flow of a fluid by. Balon lever operated floating ball valves balon offers a valve actuation package for balon ball valves 1.
With our state of the art manufacturing techniques, our valves are manufactured to the highest standards. Floating ball valve design f eature additionally, the fire safe metal seat can prevent the line pressure erosion on soft seat and minimize soft seat creep deformation. Instead, the line pressure forces the upstream seat onto the ball to cause it to seal. Pdf design, manufacture and simulation of ball valves for oil. Valve designs combined with the selection of advanced materials are such that. Floating ball valves are more than just floating ball valves part 1.
Antistatic design ball spring devices eliminate static electrical buildup between stem, ball and body. Ball valves are intended to be used as onoff flow control devices and are not to be used to throttle fluid flow. The handle lies flat in alignment with the flow when open, and is perpendicular to it when closed, making for easy visual confirmation of the valves status. Figure number code description 1 serial number identifies certified manufacturers serial number 2 figure number identifies the detailed valve configuration valve type, bore size, pressure class, materials, etc. Size range onehalf to 12 inches, american national standards institute ansi 150300.
The designing of valve depends upon the pressure and temperature ratings and also other factors. Of these metal seated ball valves supplied, some are floating design, while the rest are trunnionmounted with extension bonnets for low to high temperature service. Swi free floating seat supported ball valves have been. Shashi menon, in transmission pipeline calculations and simulations manual, 2015. You can learn the design requirements in the standards such as asme b16.
Abc manufacturer of floating ball valves, trunnion ball. The valves should always be either fully open or closed. All valves are designed as per en 17292, api 6d, asme b16. Floating ball valves microfinish floating ball valves are available in both reduced bore and full bore designs. Bfe floating ball valve design is developed using the latest software based analysis tools. When the hole in the ball is orientated in the same direction as the pipe, this will result in full flowrate. All neway floating valves fire safe is designed and test certified in accordance with api 607.
Scv valve api 6d trunnion mounted ball valves in sizes 3 thru 20 in classes. Uncompromising commitment to high quality and reliable. A ball valve consists of a valve body in which a large sphere with a central hole equal to the inside diameter of the pipe is mounted. At the design stage, all projects are analysed using 3d solid modeling tools. Gwc italia proven technology for individual valve solutions worldwide 8 figure 1 ball valves present a particular problem with the build up of static electricity around the ball. All wetted component materials and bolting meet nace mr. You can get some good design information from the valve designers handbook or the valve book. Navco s20 floating ball valve schlumberger products. Ktm virgo series floating ball valves deliver reliability to your process. Ball valves use a metal ball with a hole bored through the center, sandwiched between two seats to control flow. Floating ball valve table of index page introduction, features 34 overview, split body 5 dimensions and weights, class 150 pn 20 6.
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