Headquartered in italy, with stateoftheart manufacturing facilities in milan, italy, bakersfield, ca, usa and shanghai. Advantages of trunnion ball design is the lower operating torque, ease of operation, minimized seat wear. A trunnion mounted valve means that the ball is constrained by bearings and is only allowed to rotate, the. Two way ball valve, ball valve manufacturer, floating ball. 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.
All dafram trunnion mounted ball valves have a threaded vent antiblowout valve as per api 6d. Ball valve learn about floating and trunnion mounted ball. Contents product coding for kitz trunnion mounted ball valves 2 soft seated 2 metal seated 2 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. All standard trunnion mounted ball valves shall be provided with self relieving seats allowing automatic body cavity. By contrast, balons multiseal seats provide multiple sealing surfaces for fullrange sealing. Our trunnion mounted ball valves are utilized in some of the most demanding processes in virtually every industry. Table of contentsspecial ball valves, rising stem ball valves.
The ball is operated by a sealed spindle to which the operator is attached. When end users evaluate safety and total cost of ownership, tk ball valves provide great value. Oswals trunnion mounted ball valve is the result of innovative engineering. 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. Among them are an antiblow out stem, longlife, doublestem seal system and stem supported in bearings to ensure seals are free from operation loads. Most trunnion mounted ball valves seal poorly at low pressure. 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.
Trunnion mounted ball valves kitz corporation of europe. In the floating ball design, the ball is allowed to float and the upstream line pressure will apply against the ball to press it against the seat to produce the seal. A valve designed to meet every perceived operating condition would be extremely overdesigned for what is generally required. Floating ball valve trunnion mounted ball valve standard design. A trunnion ball valve has additional mechanical anchoring of the ball at the top and the. Trunnion mounted ball valves sgs special gas systems. With the spe design the trunnion valve only seals on the upstream side. The robust design tolerates the heavy loads applied to the valve trim that result from of large sizes, high pressures and dynamic temperature cycles.
Metal seated 3piece body trunnion mounted ball valves t60m series1. Designed, tested and manufactured to provide peak performance in your process our trunnion mounted ball valves are utilized in some of the most. It features a modular design that allows simplified adaptation to diverse safety, emissions and performance requirements. Cast steel trunnion mounted ball valve metals valve. Trunnion mounted ball valves a global leader in the design and manufacture of high performance ball valves, butterfly valves, knife gate valves, actuators and accessories for industrial applications. It embodies all the quality, performance, value and safety features required for critical applications. Its superfinefinished, trunnion mounted ball design is just one of its many important design features. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. Of these metal seated ball valves supplied, some are floating design, while the rest are trunnion mounted with extension bonnets for low to high temperature service. Scv valves newly designed api 6d 3piece trunnion mounted ball valve was built to exceed the performance requirements for specification iso 158481.
Trunnion ball valve special features balon corporation. The single piston effect is the the standard design for trunnion mounted ball valves. Product coding for kitz trunnion mounted ball valves 3 soft seated 3 metal seated 3 soft seated 3piece body trunnion mounted ball valves t60s series1 4 component drawing 5 design features 6 construction and material 8 valve dimensions and operators 10 material example 12. Trunnion mounted ball valves ball valve mga controls ltd. Nylon for lowpressure sealing, acetal for highpressure sealing. This type of ball valve is known as cavity filler ball valve. Integral ball stem machined from single piece of bar. 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.
The trunnion ball valve is featured by blowoutproof design with cylindrical extensions at the top and bottom of the ball. The trunnion prevents the ball from shifting and permits the ball to rotate on a vertical axis. Ball valves types, construction, applications and advantages. Jan 11, 20 all dafram trunnion mounted ball valves have a threaded vent antiblowout valve as per api 6d. A trunnion mounted valve means that the ball is constrained by bearings and is only allowed to rotate. The technical definition, design features and standards, as well as material selection of cast steel trunnion mounted ball valve, 2 piece split body design. 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. Soft seated 3piece body trunnion mounted ball valves t60s series1 4 component drawing 5 design features 6 construction and material 8 valve dimensions and operators 10 material example 12 metal seated 3piece body trunnion mounted ball valves t60m series1 component drawing 14 design features 15. A trunnion mounted valve means that the ball is con.
Designed, tested and manufactured to provide peak performance in your process our trunnion mounted ball valves are utilized in some of the most demanding processes in virtually every industry. Isv figure number bt3ef0601110rfnhnfg describes an asme class 600, 3 piece bolted body design, full port, trunnion supported ball valve, raised face flange ends, with a105 body material, carbon. The torque requirement of a trunnion mounted ball valve is significantly less than that for a. Metal seated ball valves are mainly used for heavy duty applications. In my opinion you should decide for a trunnion starting with class 600. We manufactured all kinds of ball valves supplying for oil and gas plant, petrol chemical, oil refineries and power plant. Trunnion mounted ball valve standard design optional design api 6d, api 608, iso 17292 asme viii design and construction asme b16. The valbart vb2 and vb3 are repairable, bolted body, sideentry, trunnionmounted ball valves featuring a fixed ball and floating seat rings.
Trunnion mounted valve is a solution to the problem of excessive torque required by a floating type valve in highpressure service. Advantages of trunnion ball design is the lower ope. Trunnion ball valve introduction contd features fire safe design during a fire, nonmetallic soft material will be burnt, subsequently seat leakage or external leakage may occur and cause the fire spread or contaminate the environment. Trunnion ball valve introduction features introduction a ball valve is a valve with a spherical disc, the part of the valve which controls the flow through it. Ball valve learn about floating and trunnion mounted. Advantages of trunnion ball design is the lower ope rating torque, ease of operation, minimized seat wear.
The gasification process converts coal to gas using a combination of oxygen and superheated steam. Pressuretemperature ratings and the flange design conforms to asme b16. General design the ball is fixed by trunnion shaft size 4and smaller or retaining plate size 6 and above. In trunnion mounted ball valve, the ball rotates without moving on the horizontal axis, where as. 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. Floating type ball valves conform to iso5211, flanged ends.
If process uptime and valve performance are important to you, then look no further for all your valve needs. It is essential to understand that these traits are common in all trunnion mounted ball valves irrespective of design or manufacturer. Trunnion mounted ball valve complete solutions for industrial valves. Argus fk76m trunnion mounted ball valves are engineered to deliver longlasting, tight shutoff performance in oil and gas, petrochemical and chemical industry applications.
The fk76m ball valve is available in standard and severe service designs and offers metalseated and softseated configurations for reliable sealing performance. Dn 25 nps 1 up to dn 50 nps 2 trunnion ball design. Trunion mounted ball valve valve engineering engtips. Secondary stem sealant injection firesafe packing bleed valve secondary seat injection sealant robust design with heavy wall thickness drain plug large. Global valve and controls trunnion ball valves, double. Fire safe design blow out proof stem construc on an sta c design locking device for lever handle opera on iso 5211 actuator moun ng emergency grease injec on op on pn design can be available trunnion mounted ball valve series f18tkt60 3. A ball valve is a form of quarterturn valve which uses a hollow, perforated and pivoting ball to. Our ball valves mainly is supplied for north and south america and north sea oil and gas industries.
The 3 piece design allows for the center part of the valve containing the ball, stem. Fire safe design blow out proof stem construction anti static design locking device for lever handle operation iso 5211 actuator mounting kitz trunnion mounted ball valves are furnished with an integral actuator mounting pad designed in accordance with iso 5211. We also oem manufacturing in accordance to customers design and requirement. 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. Seat wear due to ball movement should be evenly distributed on. New model trunnion mounted ball valve fire safe design. This feature facilitates the installation of actuators to the valves. See more ideas about forged steel, steel and stainless steel flanges.
Abc manufacturer of floating ball valves, trunnion ball. Our near perfect ball valve design is the result of almost 50 years of engineering evolution. An advantage of trunnion ball design over floating ball is the lower operating torque of the ball. Double blockandbleed design the tk of valve is an endentry, trunnion mounted ball valve. The fk76c splitbody, fullbore, trunnion mounted ball valve represents the highest standards in valve technology. A short shaft like an extension that called trunnion set in the body. Whether produced in stafford or internationally, all isv trunnion mounted ball valves are designed and manufactured in strict accordance to industry standards and isv product design specifications. In this design steam and ball work as a single unit. Ball valve design feature valve building engineering scribd. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. The extensive range includes softseated designs that provide excellent leakresistance.
Single two three piece design, full bore regular reduce bore two way floating trunnion mounted ball valves. The primary difference between a floating ball valve and a trunnion mounted ball valve lies in the mechanism for how the seal is achieved. The torque requirement of a trunnion mounted ball valve is significantly less than that for a floating ball design. 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. Similarly, trunnion mounted ball design is also capable of bidirectional sealing.
Also, every operating condition cannot be analyzed to determine performance boundaries. Specifying isv three piece trunnion ball valves example. Design dafram trunnion mounted ball valves design, manufacturing and materials comply with the requirements of the 9723ec directive ped, api 6d and asme viii. The valbart vb2 and vb3 are repairable, bolted body, sideentry, trunnion mounted ball valves featuring a fixed ball and floating seat rings. The bearings act on the trunions which may integral to the ball, or may be separate depending on the valve design. Integral ball stem machined from single piece of bar stock eliminates the backlash during handle actuation. In trunnion mounted ball valve, the ball rotates without moving on the horizontal axis, where as seats are floating and free to move on the same axis. Standard end flanges shall be furnished in accordance with asme b16. 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. The sphere has a hole, or port, through the middle so that when the port is in line with both ends of the valve, flow will occur. Ball valves are intended to be used as onoff flow control devices and are not to be used to throttle fluid flow. Trunnion mounted ball valvetrunnion mounted ball valve. Trunnionmounted designs with independently sprung seats are preferred for these applications.
The valves should always be either fully open or closed. The balon trunnion mounted ball valve is equipped with a body bleed fitting that can be used for. Trunnion mounted ball valves, both manual and automated. One of the main advantages of using jc metal seated ball valves is the fact that we can transform a soft seated stock valves into a metal seated valve. A ball valve, one type of continue reading ball valve. Unique operating dynamics of trunnionmounted ball valves. The bearings act on the trunnions which may integral to the ball, or may be separate depending on the valve design. The ball of trunnion mounted ball valve is made by forging process.
Ball valves are available in both sideentry and topentry configurations, along with fullor reducedbore, in weldedand bolted body constructions. The valve constitutes of body and end connector material of casting grade astm a351 cf8m. Both trunnionmounted ball valves and floating ball valves are available with a wide range of additional options. Trunnion mounted ball valves trunnion mounted ball valves general single piston effect spe a trunnion valve seat design that allows automatic relief to the pipe line from excessive pressure built up inside the body cavity. There are a few types of ball valves related to the attachment and lateral movement of the ball. Trunnion mounted ball valves oswal industries limited.
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