A commonly used design is the wafer type that fits between two flanges. All butterfly valves are full rated on deadend service. 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. Valves 2 to 20 meet the intent and have passed the awwa c50487 section 5 proof of design tests. The disc remains in the fluid path when open, but there is relatively little pressure drop. Wafer, semi lug, lug and flanged type global valve center. All sure flow butterfly valves meet api609, mss sp67, and iso 5752 facetoface dimensions. A 90 rotation of the handle provides a complete closure or opening of the valve. Rated at 200 psig 212 and 150 psig 1424 bubbletight shutoff between flanges, these general purpose valves offer reliable performance in all types of water. As shown in picture 3, they can be used to lift the vag ekn butterfly valve.
Butterfly valves take up approximately 16 the space of a gate valve. The lug body has protruding lugs in the periphery of a body that provides passage to bolt holes that match with those in the flanges. Valves common types butterfly valves butterfly valves use a similar principle to ball valves. Instruction manual form 5338 february 2007 a11 valve. The vag ekn butterfly valves sized dn 900 and larger are provided with suspension bores located above the flange. Type approval certification from abs for marine applications 2 to 48. Off set type butterfly valves standard age hp butterfly valve is designed for medium low pressure and temperature16barg203.
Whether for potable water, mechanical systems or gas applications, viega offers a valve for your needs, ranging in size from. This valve is not designed to handle impacts of any kind. Like viega fittings, valves offer smart connect to provide installers added confidence in their ability to ensure secure connections. May 11, 2020 concentric butterfly valve, also know as zero offset butterfly valve, is the most basic type of butterfly valve design. All valves shall be either prattmodel 2fii or monoflange mkii and comply with the following details. Butterfly valves can be used as a control valve at an opening angle between 30 and 90. Unique construction of dual seat provides excellent endurance to the thermal deformations of the body, valve disc and seat ring.
Upper shaft seal shall be self adjusting vtype and shall be suitable for pressure or. Resilient seated flange type butterfly valves keystone size. Vf series butterfly valve with a cv 496 at 70 rotation weighs only 19 pounds including a va909x series actuator. While we suggest use of weld neck flanges, apollo models are configured to also accept slipon flanges that eliminate failures associated with conventional butterfly valves. A different installation procedure is used for each one. Basics of butterfly valves animation of butterfly valve. Butterfly valves type 57il isolator lug style pvc 1 this users guide contains information important to the proper installation, maintenance and safe use of the asahi av product store in an easily accessible location. For valves that have been factorypacked in transport crates wooden crates, the centre of gravity of the entire unit must be taken into account.
Sudmo hygienic butterfly valves can be operated either by a manual handle or remotely controlled by an automated pneumatic actuator. These valves feature a dynamic sealing design that is used in a variety of demanding applications. The handle blocks the valve in the open or closed position, although there are also other models with intermediate positions. Gate valves wedgeparallel slabparallel expandingparallel slide. Viega offers shutoff valves to support system installations of propress, megapress or pureflow. The quality of butterfly valve installation is one of the most important factors that affect the overall operation. The manufacturer shall have produced awwa butterfly valves for a minimum of five years. Its available in wafer, lug and flanged type design.
E 10 butterfly is about 21 high 10 iron gate is about 43 high bubble tight gate and globe metal to metal seats cannot provide bubble tight shutoff. Our comprehensive valve line features both manual and pneumatic actuator options. A typical flanged butterfly valve is illustrated in fig. Resilient seated flange type butterfly valves size 65mm to 1,800mm 2. When the valve is closed, the disc is turned perpendicular to the flow so that it completely blocks off the waterway. Plug valves lubricated balancedsleeved, linedexpandinglift. Sandwich butterfly valves, whether manually or automatically operated, can be used in most liquid product applications in the foodprocessing, pharmaceutical and chemical industries. Bidirectional deadend capability to 200 psi 2 to 12. The mud king wafer and lug type butterfly valves are designed to meet the stringent requirements of. It was introduced to alleviate installation problems associated with the dove tail design booted seats. Bf series waferlug butterfly valves henry pratt company. Wafer, flange, lug unidirection for steam bidirection for water, air.
The wafer body is placed between pipe flanges, and the flange bolts surround the valve body. An epdm seated butterfly valve shall not be used for all oil applications. En 558, api 609, iso 5752, ksv 7490, jis f7480, jis b2032, jis b2064 or bs 5155. Butterfly valves are produced in sizes ranging from nps 1 dn 40 to over nps 200 dn 5000. Butterfly valves shall be type 57p lug style pvc, cpvc, pp or pvdf body with pvc, cpvc, pp or pvdf disc and either epdm or fkm seat and seals. An elastomer lining seat is used to obtain tight closure in all but the high performance butterfly valves, which have a longer lasting seal. Butterfly valves provide bidirectional deadend service in commercial and industrial service. Compact and light weight wafer type provides low cost and space utility. Butterfly valves have fewer parts and are easy to maintain. Flange accommodation and pressure rating must be specified.
The cartridge seat is a unified, rigid component that is formed by bonding an elastomer to a hard, dense phenolic composite ring, which is inserted into the valve body. The structure of the wafer type butterfly valve is short and takes up a small space. Butterfly valves shall be manufactured in accordance with the latest revision of awwa c504, class 150b and conform to ansinsf 61 and ansi nsf 372. Type 57p5675 wafer elastomer seated butterfly valves. We engineer our valves and actuators with efficiency and safety in mind and have done so for over 90 years. Stainless steel seat ring provides tight shutoff with discseat. At dezurik, our team prides itself on designing and manufacturing a variety of highquality butterfly valves with bestinclass features.
Sudmo hygienic butterfly valves k 580 k 660 k 680 are used in all segments of the process industry. Valve design api 609, msssp 67, en 593, jis b 2032 face to face dimensions api 609 category a, msssp 67 w1. Resilient seated flange type butterfly valves keystone. This simplifies the operation of the valve, but at the expense of speed.
The two piece design of shaft and disc allows for an easy change of the disc and liner. The valve is available in sizes up to 48 1200 mm, in asme classes up to 900, with long pattern body and buttweld ends. Lug type and wafer type butterfly valves should have body pressuretemperature ratings for the selected american society of testing and materials astm material specification in accordance with the applicable ansi b16 standard the wafer type butterfly valves, other than lugged type, should be provided with or without holes for the passage of bolts. Again the orientation of the butterfly determines the flowrate. Rubber seated butterfly valve, sizes 3 through 20 inches general butterfly valves shall be manufactured in accordance with the latest revision of awwa c504, class 150b and conform to ansinsf 61 and ansi nsf 372. Fits butterfly valve sizes 112 8 download the asahi series 94 electric actuator datasheet. They are normally used as throttling valves to control flow. Due to the valve design, incorporating a small facetoface dimension and lower weight than most valve types, the butterfly valve is an economical choice for larger line sizes i.
A butterfly valve exhibit 1 operates by opening and closing via a disc the butterfly. Download the asahi series 92 electric actuator datasheet. Dezurik butterfly valves for a variety of applications. Concentric lug type rubber lined butterfly valve series cfr. Introduction to butterfly valves the process piping. Apollo butterfly valves are designed for installation between ansi class 125150 lb. In dead end service exceeding 96 hours, a downstream flange is recommended.
The manual version comes standard with a dualmultiposition handle notch plate, which can be easily reconfigured to suit the specific installation by being positioned in any of the four operating quadrants, and also is supplied standard with a padlock facility. Valve name soft seat butterfly valve design standard en 593 test standard en 12266 connection standard en 1092 presentation highlights concentric type butterfly valve, as one of the most resilient seated valves in the industrial fields, has a wide range of applications. Browse ld2000 butterfly valve ductile iron, lug type, 200 psi in the nibco catalog including material number,upc code,connection type, valve size,description,turnsoperation. Ld2000 butterfly valve ductile iron, lug type, 200. Wafer style butterfly valves wafer style is the more common of the two and is less expensive than the lug style. Valve types and features the three basic functions of valves are. 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. To connect pipe to another pipe connection, two flanges are needed to clamp the butterfly valve in the middle. The wafer type butterfly valves, other than lugged type, should be provided with or without holes for the passage of bolts securing the connecting flanges dependent upon valve design. 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. To make your selection easier, nibco offers specification and submittal assistance. The stem passes through the centerline of the disc which is further placed in the center of the pipe bore and the seat is the inside diameter periphery of the valve body. Butterfly valve types wafer, lug, double offset and triple offset types a butterfly valve is a quarterturn rotary motion valve, that is used to stop, regulate, and start the flow. A wafer type butterfly valve is easy to installed but it cannot be used as an isolation valve.
Thermoplastic butterfly valves are available in two types styles. Pentair hygienic butterfly vavles k 580 k 660 k 680. They are usually manufactured in flanged, wafer, and lug, or singleflangetype designs. You also get the assurance of the nibco warranty, along with superior customer service expertise. Type a11 high performance butterfly valves are available in either a flangeless wafer or a single flange design, with a variety of seal, valve body, and internal components. Not all pipes and fittings companies are created equal. Find butterfly valves on globalspec by specifications. The wafer style butterfly valve is just about the standard.
Apollo ldwd 141 series ductile iron butterfly valves offer an economical design thats ideal for use in industrial and hvac mechanical applications. Butterfly valves are available in sizes up to 20 in. Series 815 ansi class 150 and series 830 ansi class 300 wafersphere high performance butterfly valvesw1016en series 815 part no. Thermoplastic butterfly valves are available in two typesstyles. Kitz lugged type butterfly valves are rated for dead end service to full working pressure of the valve with the downstream flange removed. A regulation to an opening angle below 30 is not recommended due to high flow rates and cavitation, which results in early damage of the valve. Butterfly valve figure v11 valve dimensions notes 1 valve size shown is for 125mm, 1,000mm, 1,200mm. Fits butterfly valve sizes 112 4 download the asahi series 10 electric actuator datasheet. The weldingend style is a specially engineered valve for a specific application. Resilient seated butterfly valves are bubble tight by design. A 90 rotation of the handle can completely close or open the valve.
Large butterfly valves are usually equipped with a socalled gearbox, where the handwheel by gears is connected to the stem. Lugged type, wafer valves should be supplied with threaded or drilled holes the lugs to the size, nominal pressure rating, and type of connecting flange. 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. Butterfly valves double or triple offsetrubber lined. The contents of this website are presented for information purposes only, and while effort has been made to ensure their accuracy, they are not to be contrived as warranties or guarantees, expressed or implied, regarding the products or services described herein or their use or applicability. Butterfly valve series ne style information the mud king wafer and lug type butterfly valves are designed to meet the stringent requirements of chemical plants, processing plants, power plants, refineries, shipbuilding, pulp and paper mills, and wherever positive shutoff is required for liquids, oil, gas, and gas slurries. Garlock does not offer rubber or metal valves, so our main focus will be on plasticlined valves. Butterfly valve types wafer, lug, double offset and triple. Butterfly valves, hard seal butterfly valve, triple offset butterfly valve chinagangye 20180916t04. Specifications and applications butterfly valves sure flow. Concentric flanged type rubber lined butterfly valve face to face.
The butterfly valve complies with asme facetoface dimensions and pressure ratings. Garlock butterfly valves valve terialma design type 1 valve body 2 body liner 3 disc 4 specific design body liner 5 valve type 6 body type code material code material code material code material code material code material 1 ductile cast iron enjs 1049 0. Size 16 to 24 en 558 basic series 20, iso 5752 20 series, jis b 2002 46 series coupling flanges wafer type asme class 125150 kitz dj series butterfly valves kitz dj series butterfly valves 2 10. Erhard butterfly valves 6 erhard roco premium butterfly valve dismantling type the overview brief specifications butterfly valve according to din en 593 materials and finishes body.
Features conform to the specification of jis and japanese government offices it conforms to the specification of jis b2032 wafer type rubberseated butterfly valves and japanese government offices as a valve used for supply water services or air. The garseal valves are available in wafer and lug type. Butterfly valves control flow through a circular disc or vane by turning the valves pivot axis at right angles to the direction of flow in the pipe. A butterfly valve is a quarterturn valve from the family of valves known as wafer type valves. The valve body shall be factorymachined on both sides to accept 316ss lug outserts and nuts. Butterfly valves types, construction, applications and. Sanitary butterfly valves can be operated automatically through an actuator or manually with a handle. Ductile iron epdm locking lever handle butterfly valve. The liner shall be full seat design fully molded around the body where as only the disc and seat are.
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