They are used in throttling service, particularly where largesize valves with automatic actuators are required. The valve delivers bidirectional deadend service without a downstream flange at pressures of 200 psi 2 to 6, 150 psi 8 and 100 psi 10 to12. Typically can be operated with onetenth the number of turns required to achieve the same effect with a slide valve in the same service. Verify that product is defect free and meets specifications. Mar 24, 2018 butterfly valves use a flat circular disc to control the flow of system product in a piping system. Electric actuators provide a reliable and economical method of operating these valves from a remote location. Both types has a wafer pattern body and can be used. These valves feature precisionmachined parts insuring years of dependable operation. A valve with a circular body and a rotary motion disk closure member, pivotally supported by its shaft.
A butterfly valve is a valve which can be used for isolating or regulating flow. When the edge of the disc faces the system product flow, the valve is in the fully open position. This users guide contains very important information for the proper. The butterfly valve boasts a long life span and has few faults. Butterfly valve electric actuated, air actuated, manual. Ian sutton, in plant design and operations second edition, 2017. The handle for manual operation is fitted onto the valve by means of a capblock system and a screw.
The disc is the component of the valve which actually performs the liquid throttling function. The braymccannalok cryogenic highperformance butterfly valve combines the advantages of trunniontype ball valves with the easy operation, light weight, and low cost of butterfly valves one basic design is suitable for a wide range of services, including liquid oxygen, lng and air separation. For modulating valve applications, an electric actuator with eps positioning can control the valve flow with a 420ma command signal. The travel of the valve disc is limited by limit switches in the motor housing and physical stops in the actuator housing. In each case, the affected check valve was located in a large. This simplifies the operation of the valve, but at the expense of speed. It is noticeable that wafer type butterfly valves are much cheaper than globe valves, especially when it comes to exotic materials. Valworx electric actuators rotate an output drive to open and close butterfly valves. These butterfly valves are quarter turn, resilient seated type. Butterfly valve electric actuated, air actuated, manual lever. Mode of operation the force required to operate a valve can be carried out either manually by hand or mechanically.
Selecting a butterfly valve instead of a globe valve for. Page minimum mating id for butterfly valve installations page 14 mechanical joint end assembly. To use the system to its full life span, you should install it correctly according to the manual and maintain it according to the prescribed procedures while using it. Piping must be large enough to allow the disc to clear the pipe. Again the orientation of the butterfly determines the flowrate. This table is intended to explain the significance of the vff butterfly valve part numbering system, and is not a product configuration tool. A part of a valve trim that surrounds the closure member and may provide flow characterization and or a seating surface. The actuator selection charts incorporate a 25% safety factor for 2 in. Braymccannalok en high performance butterfly valve. Circuit balancing valve f721apxx y strainer connected to ld2000 n200 butterfly valves flobossautomatic balancing valve w1880 floboss flow canister replacement guidelines w1880. The manual valves on the bypass of the control valves were evaluated for globe or butterfly valve selection. Nov 28, 20 the animation shows an example of how a butterfly valve works.
Like other types of block valve they are not generally used for controlling flow rates. They are used for handling large flows of gases or liquids, including slurries. This valve is not designed to handle impacts of any kind. The butterfly valve is designed for easy maintenance. 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. The vf series butterfly valve product data sheets contain the necessary actuator sizing sheets. Masoneilan conventional butterfly control valves valves. When moving butterfly valves, you should handle them carefully so that the components and air piping will not be damaged. Flowseal high performance butterfly valves are a standard in many industries. Butterfly valve installation guidelines nibco butterfly valves are bidirectional and may be installed with flow in either direction. Additionally, our design and manufacturing facility is certified to the pressure equipment directive ped, and flowseal valves can be ordered as ce marked see page 23.
Keystone figure 990991 butterfly valves installation, operation and maintenance instructions 1 introduction keystone figure 990991 is a rubber lined butterfly valve suitable for use on all fluids except those designated as unstable according to the pressure equipment directive, 9727ec. Concentric rubber lined butterfly valve 2 piece split body ptfe lined butterfly valve double eccentric high performance butterfly valve triple eccentric high performance butterfly valve dual plate check valve engineering data 04 12 14 17 20 22 valve configurations scale drawing to actual size application this catalog remains the property of ms. Cast iron flatface, steel raisedface, both slipon and weld. The final component of the vf series butterfly valve is the disc h. Disc seat o ring unique valve seat design soft seat. The valve is assembled by means of screws and nuts. Due to the fact that the valves are available with different body types wafer or lug type and. In order to meet your just in time delivery requirements, we. Manually operated valve manually operated butterfly valves are powered with gear actuators, which convert multiple handwheel, chainwheel or nut input turns into 14 turn valve operation. Braymccannalok cryogenic high performance butterfly valve. Byv butterfly valves should be installed between flanges matching the bolt pattern of the valve.
With many bodytrim combinations, there is a series 42 or 44 valve to meet your application. High performance butterfly valve design offered by other. Kitz dj series butterfly valves kitz dj series butterfly valves. The minitork ii is a heavy duty automatic throttling control butterfly valve that provides superior performance by incorporating the following features. This manual contains information concerning the installation, operation, and maintenance of titan flow control titan fci. Grooved valves are awwa rated for potable water in the. Butterfly valve typical view figure 1 kirloskar butterfly valves generally c onform to bs 5155 bsen 593 is 95 awwa c504 standards for dimensions, materials of construction and constructional features, as per the need of the application. The actuator is fitted onto the valve by means of a bracket and screws.
They are characterized by fast operation and low pressure drop. Braymccannalok en high performance butterfly valve operation. The tx3 triple offset butterfly valve is a torqueseated valve, utilizing the torque provided by the operator to create a seal, rather than by positioning of the disc. If the valve is to be operated from the panel on the opposite side of the vehicle, rotate the valve actuator 180 per the drawing below. Dimensions wafer type lug type b a e d7 d6 b a e aantal gaten o boutgat d2 d4 c d5 cross section mounting pad l1 dn 300 600 dn 50 250 standard handle dimensions l m r valve size l m. Econ butterfly valves are being supplied by several eriks operating companies worldwide. Danfoss vfy are concentric butterfly valves with a replaceable epdm liner design that ensures reliable. The seat in a resilient seated butterfly valve has molded orings on its flange face. The globe valve is suitable for use on a wide variety of applications, from flow rate control to openclose operation. Vf series highpressure, hightemperature butterfly valve assemblies are specifically designed for a wide range of heating, ventilating, and air conditioning hvac applications including twoposition and modulatingthrottling control of hot water, chilled water. Danfoss vfy are concentric butterfly valves with a replaceable epdm liner design that ensures reliable operation and tightness in both directions. Otherwise, the electronic and electric parts such as solenoid valve, positioner, and limit switch may get damaged or the valve travel may change. This article explains the workings of a butterfly valve and its operation.
In addition, the type of actuator, electric or pneumatic, gives you a unique level of flexibility in configu rating and operating your system. In this manual these will be referred to as eriks, the individual. Description of function for butterfly valves pneum. Low dynamic torque the unique cupped shape disc results in a dynamic torque considerably lower than conventional butterfly valves.
Keystone figure 990991 butterfly valves installation. Butterfly valves use a flat circular disc to control the flow of system product in a piping system. It may also provide stability, guiding, balance, and alignment, and facilitate assembly. Valves common types butterfly valves butterfly valves use a similar principle to ball valves. Seat replacement is a simple operation, requiring no special tools. Rubber seated butterfly valves are designed to provide a 100% shut off at operating pressures in accordance with. Braymccannalok butterfly valve is easily automated with your choice of manual operators. Assurance program that assures each valve we produce meets or exceeds your application requirements. Operation the valve stem is positioned at the factory for operation of the valve from the panel where the intake is located, the handle rotates ccw to open. Vf series highpressure, hightemperature butterfly valve. N200235 butterfly valve cast iron, 200 psi, international.
Valve shutoff is affected by limit switch and physical stop settings. To verify the valve operation, the disc position indicator on the actuator or the handle should rotate between. Pfa lined butterfly valves installation, operation. When the valve is open, the disc will extend into the pipe on both sides of the valve further on the body side than the seat retainer side of the valve. In this type of valve, flow rate control is determined not by the size of the opening in the valve seat, but rather by the lift of the valve plug the distance the valve plug is from the valve seat. Butterfly valves tsmart 7 significant product features robust valve disk low switching torque onepiece flange design selection of 2 metallic product wetted materials product wetted parts in aisi 304 1. Vf series highpressure, hightemperature butterfly valve assemblies. Kitz dj series butterfly valves kitz dj series butterfly. Installation and maintenance guidelines for nibco butterfly. By illustrating the way in which the medium flows through the body and how it is shut off, it demonstrates why butterfly valves are.
The butterfly valve is a rotary valve in which a diskshaped seating element is rotated 90 to open or close the flow passage. Wafer butterfly valve replace xxx by a number to give the diameter of the butterfly valve e. Butterfly valves are the components that provide onoff regulation of the district heating, hvac or water applications where limited space is available for components. Butterfly valves type 57, 56, 56d pneumatic actuated type ta, tw 3 3 general instructions for transportation, unpacking and storage when suspending and supporting a valve, take care and do not stand under a suspended valve. The assemblies are available with nema 2 or 4x housing and offer a range of cv values to provide an economical control valve solution for large high flow applications. In complete conformity to awwa standard c504, the pratt butterfly valve, coupled with the mdt actuator, offers single source responsibility for both actuator and valve. Butterfly valves, like ball valves, operate with a one quarterturn. Avoid horizontal piping if possible because it may adversely affect the function and performance of valves during operation.
For readers convenience, however, kgfcm 2 is also used as an additional information. Motor operated valve motor operated butterfly valves are powered with gear actuators, which convert multiple motor input turns into 14 turn valve operation. Vff1, vff2, vff3, vff6 resilient seat butterfly valves with flanged connections 63266106 4 note. Only part numbers printed in honeywell price books may be ordered.
This provides a robust, positive means for shutoff, particularly for highpressure andor high temperature applications. The assemblies are available with nema 2 or 4x housing and offer a range of cv values to provide an economical. Flanged, lug and wafer style valves are designed and suitable for installation between asme class 125 andor 150 flanges. Braymccannalok high performance butterfly valve operation. Forcing the handwheel, chainwheel or nut against the.
Types of butterfly valves butterfly valves has a short circular body, a round disc, metaltometal or soft seats, top and bottom shaft bearings, and a stuffing box. Waukesha cherryburrell brand 200 series butterfly valves introduction 112018 9503096 page 7 introduction general information for control top information, please refer to publication 9503083 wseries 2piece, h326406 cu4 asi, and h323871 cu4 direct connect. Wafer butterfly valve installation, operation and maintenance instructions installation 1 thoroughly clean and prepare the piping system before valve installation. The handle for manual operation is fitted onto the valve by. The butterfly valve offers many advantages that include quarterturn, openness for less plugging and good control capabilities. A valve is a device for isolating or regulating the flowrate of gases, liquids and slurries through pipework and launder systems. Resilient seated butterfly valves pipe, valve, fittings. Ae byv331 series butterfly valve has a through shaft with pin design meant for general purpose requirement at low to medium frequency cycle and the ae byv332 series butterfly valve has a through shaft without pin design meant for more demanding and higher frequency operation. The valve performs well in commercial applications including hvac, and hotcold potable water. Butterfly valve assemblies are available in sizes from 2 to 24 for both 2 and 3way applications designed for use in ansi pipe systems requiring zero leakage. Only flowserve replacement repair parts should be used. If this product is operated while the centers are not aligned, breakage, faulty operation, external leakage, or seat leakage may occur.
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