They are the vt series valve, the cage trim style valve, and the iron body flange valve. The concentric design principle center of the shaft in center of the disc and valve seat. Different worksheets are reported for a complete verification of common configurations. Long lasting butterfly valves with a sturdy reputation emersons keystone offer a complete range of butterfly valves from general purpose through to heavy duty and high performance models. Wafer and lug type butterfly valve 2 trough 24 note. The spherical disc design for higher cv values shall be of solid, abrasionresistant plastic.
A wafer type butterfly valve is easy to installed but it cannot be used as an isolation valve. Techno dualplate, metalhinged, wafer style check valves are designed, rated and manufactured in accordance with the following industry standards. The milwaukee valve cl223e series lug style butterfly valve with a lever handle is made of cast iron and has ethylene propylene diene monomer epdm seats and seals, an aluminumbronze disc, and flanged connections. Other type and styles available 2 50 mm through 24 600 mm. Butterfly valves shall be wafer style, as manufactured by asahiamerica inc. Usually used in water pipework systems and installed immediately after the pump. In response to market needs for an all plastic lug style butterfly valve, gf piping systems has introduced the second generation 5series lug style butterfly valves.
Globe valve to dinen with wafertype body, supercompact dn facetoface. Lug style stainless steel 304 or 316 for blocking and. 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. Full lug style butterfly valves from robertjames sales, inc. Emersons keystone offer a complete range of butterfly valves from general purpose through to heavy duty and high performance models. Techno dualplate, metalhinged, waferstyle check valves. 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. You will receive a pdf with stock valve pricing emailed to you. You also get the assurance of the nibco warranty, along with superior customer service expertise. Full 360 degrees sealing isolates the body components from the media and provides the primary shaft seal. Imi hydronic engineering north america imi flow design. Check valves or non return valves are designed to ensure one way flow only. Basically, these valves are ductile iron body, like i said wafer lug.
A butterfly valve is a valve that isolates or regulates the flow of a fluid. Wafer butterfly valves whose bodies are sandwiched between pipe flanges. Bf series waferlug butterfly valves milliken valve. Garlock butterfly valves valve terialma design type 1 valve body 2 body liner 3 disc 4 specific design body liner 5 valve type 6. Butterfly valve, lug style, body material ductile iron, max. Introduce the concept of summation of forces, needed in valve design learn what the actuator force, the spring force, the bernoulli flow force, and the two friction forces are. Butterfly valves wafer and lug butterfly valves valtorc usa. If the downstream side of the butterfly valve acts also as a point of disconnection while the upstram side is under pressure, the lug style must be used. Duochek valves 5 installs between mating flanges with 10 to 20% the weight of flanged swing checks in popular sizes saves money in initial valve cost and provides lower installation cost.
Gf introduces new type 587 butterfly valve rhfs pulse. Here you can quickly locate information related to products such as submittals, specifications, installation, operation, and maintenance guides, etc. The lug version of the butterfly valve s design is similar to a 3piece ball valve in that one end of the line can be taken off without having an effect on the opposing side. Butterfly valve types wafer, lug, double offset and. The difference between a wafer and lug type butterfly valve is only the mounting scheme 1 and 2. Design and selection of check valves 3 nozzle check valve silent check valve categories of check valves, lift, swing, and dashpot.
Wafer type butterfly valves flange bolt dimensions. One advantage of using a wafer design instead of a flanged end design is that. A wafer style butterfly valve is a valve that is sandwiched between two flanges. This can be executed by using threaded inserts, flanges, along with two sets of lugs bolts that dont utilize nuts since each flange features its own bolts. Scallop is furnished no matter when possible to keep weight to a minimum. The ld ratio for this type of valve is approximately onethird of that of a gate valve. Duochek ii valves style h lug retainerless valve design. The spreadsheet verifies some configurations of lifting lugs and padeyes. Lug valves are furnished in scallop and full body designs. We are innovators of new engineering and manufacturing techniques, dedicated to quality and continued growth. Valve design api 609, msssp 67, en 593, jis b 2032 face to face dimensions api 609 category a, msssp 67 w1. Assisted are each designed with unique features for specific applications and each contribute differently to the system response and costs.
Keystone valves lug style butterfly valve, 3, 222 series. With a tradition of more than 70 years, keystone built its reputation on providing industrial process butterfly valves known. Both lug and wafer series valves are designed for ansi 125150 lb. The high pressure pneumatic rack and pinion and electric actuators can be utilized to modulate any size of vf series butterfly. Lcc1 body in stainless steel 2 1 body astm a216 wcc astm a352 lcc astm a351 cf3m cf8m. This paper compares facetoface wafer type valves and double flange. Ian sutton, in plant design and operations second edition, 2017. To make your selection easier, nibco offers specification and submittal assistance. The seat is held in the valve body by a seat retainer cap screw retainer doubledeadend lug style this wedge ring design is for wafer and old design standard lug style valves. See all our latest ways to save you repair time, money and effort by subscribing to our monthly new product announcements. So, effectively you had a design that was lower in weight but had no greater stress than the original design. They are furnished in scallop and full body designs. This more labor intensive than installing a single machine bolt on each side of the valve. Ricker, pe, aisc engineering journal, fourth quarter1991 and its.
Shaft onepiece shaft delivers positive disctoseat location with maximum strength. Keystone valves lug style butterfly valve, 3 dultmeier sales. These valves offer the same great features and construction as the series 221 wafer style, except lug style bodies are drilled a. Milliken believes that in order to satisfy customers, our products. Series 31h lug resilient seated butterfly valves are drilled and tapped to meet asme class 125150 and pn16 flanges. Properly selected and maintained control valves increase efficiency. This book includes extensive and proven knowledge from leading experts in the process control field including contributions from the isa and the crane company. All ld141 series apollo lug style butterfly valves may be used for deadend service in either direction at their full pressure rating.
The latest engineering related news and articles from around. The normally open versions of these valves are shown in figures 1, 2, and 3. The wafer style butterfly valve is designed to maintain a seal against. 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. That was a major point in the high performance days of the 60s. Manufacture, according to customers drawings, metallic turned parts, hot forged and machined brass items. Please also add 30% for safety margin on actuator sizing. This highperformance valve is offered with a full variety of options for greater application versatility in industrial and chemical processing applications. Pdf ball and butterfly valves are quarterturn type valves that are widely used in the. When open, the disc is edgeon to the flow and the fluid passes around it, offering limited resistance. The control valve handbook is both a textbook and a reference on the strongest link in the control loop. Range 30 to 250 degrees f, liner material epdm, disc material aluminumbronze, handle type lever, number of bolt holes 8, bolt circle dia. Preface control valves are an increasingly vital component of modern manufacturing around the world.
The common body types are lug style and wafer style, and flanged ends are used in some large diameter designs. Lug style valves cover the bolting the entire length of the body. Properly selected and maintained control valves increase efficiency, safe. Applicable for butterffly valves with elastomer lining. They meet or exceed the design requirements of mss sp67 and api 609. All apollo resilient seated butterfly valves are bidirectional with the ability to control flow equally in either direction. Design and verification of lifting lugs mec engineering.
To show that the system is balanced the chair supports the man, the equation can be written f w f c. Not suitable for fluids containing mineral oils, steam or fluids. Lug type valve as the name suggests has lugs that are used to mount the valve to lugs that are attached the flanges on then ends of sections of pipe so that each length of pipe can be removed and replaced independently. Milwaukee valve lugstyle butterfly valve, ductile iron, 200. Valves 1 contents primary isolation valve applications market. The type 578 valve offers excellent corrosion resistance with long service life and is available in manual, electric and pneumatic actuated versions. Butterfly valves wafer style full lug style semi lug style grooved end dimensions 212 dimensions 1424 operators elastomer guide.
Reliapak kits for series b flanges are available by request. When the system pressure overcomes the spring pressure the valve feather will move in the seat creating an exit to atmosphere allowing the system gas or liquid to escape. Butterfly valve type 578 gf piping systems english. The type 578 valve offers excellent corrosion resistance with long service life. Valve design objectives the objectives for this chapter are as follows.
The vbflyphl stayflow butterfly valve design in pvc or cpvc provide exceptional chemical and corrosion resistance and improves on traditional linerseat type valve. Pearson 4 hand book of valves and actuators by brain nesbitt standard refer api 594, asme b16, astm a126 5 design data hand book 3rd edition by k. Lug style butterfly valves type 578 of gf piping systems gf piping systems butterfly valves reliable product solutions, now updated by means of. Because of the unique seat design, nibco 248 butterfly valves do not require the use of flange gaskets and can be used for dead end service without a downstream flange. The wafer body is placed between pipe flanges, and the flange bolts surround the valve body. Facetoface dimensions comply with din 3202, part 3, k1 corresponds to iso 575220 and api 609.
Butterfly valves provide bidirectional deadend service in commercial and industrial service. When flow reduces or reverses if the pump fails then the disc. How to specify rx butterfly valves rx size type end drilling body disc shaft seat operator example. Scallop is furnished whenever possible to keep weight to a minimum.
Flowseal hpbvs are designed to be easily maintained and, in particular, to allow rapid and simple replacement of the seat. Butterfly valves engineered by bray including resilient seated butterfly valves, double offset high performance butterfly valves, triple offset premier isolation butterfly valves and high performance valves for the sugar industry. Lug valves are furnished with thruhole bolting in accordance with api 594. Lug valves can be specified with threaded or thruhole bolting. Valves shall be of the wafer or lug design for installation between ansi 125150 flanges. For wafer style valves, the seat shall cover the entire inner surface of the.
The latest engineering related news and articles from. The verification is performed considering the reference design and construction of lifting beams david t. Pdf wafer design valves verification based on asme b16. Select a link below to search our extensive inventory of engine oil drain plugs, wheel lug nuts, and wheel lug studs.
Ok so these are butterfly valves, we offer them in a ductile iron body, we will cover it in a wafer style, a lug style, as well as a wafer with alignment holes. Looking for milwaukee valve lugstyle butterfly valve, ductile iron, 200 psi, 12 pipe size 5mpc6. L1 and m1 refer to lug style valves, l 2 and m 2 refer to wafer style. Description product group 200 butterfly valves wafer type lug type double flanged type. Installation and maintenance guide for nibco butterfly valves. For information on butterfly valves consult the engineering data book section vb2. Valve product bulletins to determine which size valves can utilize the piston actuators.
Kitz lug style butterfly valves are rated for bidirectional dead end service to full working pressure of the valve. Installation and maintenance guide for nibco butterfly. Keystone emerson us keystone valves keystonevalves. Because it has threaded bolts around the entire area, the lug valve is a safer optionmost customers can switch from a wafer valve to a lug valve. The garseal valves are available in wafer and lug type. The 26 and larger reliapak kit bolt sizes and quantities shown above are for series a flanges, and will not work in series b flanges. Series 815 asme class 150 and series 830 asme class 300 waferffsphere high performance butterfly valves w1016 en technical bulletin 919 3 flow data continued to determine c v values for a valve in an intermediate position. Butterfly valve consists of a disc that rotates on a shaft at right angles to the fluid flow.
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 construction and materials 17 valve dimensions and operators 19 pressuretemperature ratings 21. New allplastic lug style butterfly valve extends service life robust, highquality valve solution for applications requiring an all plastic system in response to market needs for an all plastic lug style butterfly valve, gf piping systems has introduced the second generation 5series lug style butterfly valves. An economic, general purpose, full performance butterfly valve, bubble tight rated at 200 psiwog that meets the stringent demands of the processing industries as well as the needs of the mechanical contractor in hvac applications. Compared to globe valves selected for the same design flow rate. Pdf why are butterfly valves a good alternative to ball valves for. The difference between a lug and wafer butterfly valve. High pressure resilient seated butterfly valve series 31h.
Valve sizes from 2 to 12 are rated at 200 psig wog service and valve sizes from 14 to 30 are rated at 150 psig wog service. Please consult your local bray representative for your specific condition. Butterfly valves bf series available in sizes dn 50 to dn 2600. Plate heel is lifted first by design to prevent seat wear. The maximum valve disc rotation which can be obtained for a butterfly valve driven by a johnson controls piston actuator is 70. Valve withstood proofof design testing of 100,000 cycles awwa only requires a maximum 10,000 cycle proofof design testing.
The economic and short wafer body is clamped between two pipeline flanges. Milwaukee valve cl223e series cast iron butterfly valve, lug. The most common check valve is the disc type horizontal or vertical. Grooved style valves connect to metallic pipe of ips per awwa c606.
Lug style butterfly valves have the same face to face dimensions as a wafer style butterfly valve. Kitz butterfly valves are designed and manufactured to perform in a broad range of applications. Our butterfly valves are available in various materials, such as stainless steel, carbon steel, pvc, ductile iron and aluminum. All valves shall be capable of bidirectional, end of line, bubble. Liner shall be molded and formed around the body, functioning as gasket seals with convex ring design on each side of the valve for lower bolt tightening torque and valve. Butterfly valves are generally favored because they cost less than other valve designs, and are. Butterfly valves dimensions 212 robert james sales.