The butterfly valve actuator of choice for shutoff service in water. Assembly of the pratt industrial bf series butterfly valve. Full length upper and lower bearing materials are constructed of 316 s. Pratt indus trial engineering creative solutions for fluid systems since 1901 bf series waferlug butterfly valves. The amount of total torque tt required to modulate a butterfly valve disc. Pratt butterfly valve, coupled with the mdt actuator, offers single source responsibility for both actuator and valve. They are used for shutoff on clean water and gases.
Each valve is tested for five minutes with air pressure against a closed disc covered in a pool of water at the pressure above rated pressure required by ul rules. The actuator selection charts incorporate a 25% safety factor for 2 in. Pratt hp series highperformance double offset butterfly valves. Manual actuators shall be selflocking type and shall be. 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. Pratt bf series butterfly valves 2 48, 212 230 psi, 1448 150 psi. Hp series high performance double offset butterfly valve.
The travel of the valve disc is limited by limit switches in the motor housing and physical stops in the actuator housing. The rubber bonding process used on dezurik awwa butterfly valves is proven by more than 50 years of field experience. Components are selected for longterm reliability, so the valves will provide service life equaling or exceeding that of the pipeline. Growth of our company has also been closely associated with the increased use of rubber seat butterfly valves.
Henry pratt valves represent a longterm commitment to both the. The batley swingthrough butterfly valve has a basic equal percentage characteristic but this is. All valves shall be capable of bidirectional, end of line. 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. In order to meet your just in time delivery requirements, we maintain inventory on 3 through 48 butterfly valves with a variety of mdt actuation styles to suit your application. Butterfly valves henry pratt company valve manufacturer. Henry pratt companys investment in pratt industrial combines the innovative resources of a century old company with the knowhow of experts in industrial. Designed specifically for the waterworks industry, lineseal butterfly valves offer the ruggedness and reliability required for buried service and performance.
Buried service butterfly valves underground distribution and transmission systems are most often designed with 4 through 20 mains. Read our updated valve and actuation catalog which includes more than 150 flagship valve, actuation and instrumentation products and see how flowserve products can help you achieve worldclass valve performance. Henry pratt companys involvement in pratt industrial combines the innovative resources of a century old company with the knowhow of experts in industrial valve markets. Townley slurry handling valves knife gate and butterfly valve. Dissassembly and assembly after pipe line have been depressurized and drained, remove but terfly from line. Butterfly valve, sizes 2 through 72 272 ansi 150, 248 ansi 300, 324 ansi 600 1 5 6 8 7 9 10. Or, call your pratt industrial experts at flotech, 9043581849. Wafer valves shall be design for installation between ansi 125 150, pn 10, and pn 16 flanges. Components are selected for longterm reliability, so the valves will provide service life. With the development of the first rubber seated butterfly valve more than 70 years ago, the henry pratt company became a trusted name in the flow control industry, setting the standard for product quality and customer service. These messages indicate procedures that must be followed exactly to avoid equipment damage, physical injury, or death. Dimensions and drilling of end flanges conform to the american cast iron flange standards. Pratt industrial specializes in the design, engineering, and worldwide. Awwa c504 requires testing of the bonding process per astm d429, method b.
International data sheet ibv indicating butterfly valve. All bodies shall be ductile iron 6545 12 and bidirectional tested in both directions and be bubble tight with zero leakage. A key design feature is the moldedin rubber seat which is bonded to the valve body. Americanbfv butterfly valve butterfly valves manufacturers. This provided a zero leakage valve in place of the allowable leakage of a double disc gate valve ddgv. Pratt industrial specializes in the design, engineering, and worldwide distribution of technologically advanced, industrialuse valves and actuators. Access blogs, white papers, case studies and videos on flowserve valves in our new knowledge center. Flanged valves shall be fully faced and drilled in accordance with ansi standard b16. 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.
Abz series 396397 resilient seated butterfly valves. Our butterfly valves are available in both cl150b and cl250b, and they meet or exceed awwa standard c504, latest revision. Pratt offers a unique design for 24 through 72 groundhog valves. All butterfly valve parts are field replaceable and require no field adjustments. Available in sizes 2 through 72 stocking in sizes 2 through 36 wafer lug double flange buttweld style pressure class. Offset disc design, corrosion resistant shaft, stainless steel disc edge, and selfcompensating shaft seals are features on all dezurik awwa valves. Innovative products for unique applications though many of the standard valves we produce are used in water filtration and distribution applications, pratt has built a reputation on the ability to develop specialized. Hp series high performance double offset butterfly valves 2 to 72.
Underwriters laboratories listing for flanged valves is 250psig17barg. The valmatic americanbfv butterfly valve is the valve of choice for shutoff service in water systems. Wafer and lug style resilient seated butterfly valves with. Resilient seated butterfly valves product features suitable for both gaseous and liquid service positive shutoff bidirectionally ptfe bushing standard locking handle standard 2 12 end of line service standard on lug style ease of automation field repairable 2 12 phenolic backed seat 1430 aluminum backed seat. In 1901, a small group of industrialists started in their small metal fabricating shop and officially entered the valve industry in 1926 with the designdevelopment of the first pratt rubber seated butterfly valve. Suggested specification for the pratt rubber seated butterfly valve, sizes 3 through 20 inches. Butterfly valves remanufacture we can rebuild your existing worn valve to likenew condition with a new valve warranty for a variety of oem styles including keystone, media, dezurik, henry pratt, mosser, bif, rodney hunt and allis chalmers.
Weight lb kg wafer lug 45 56 20 25 58 72 26 33 67 84 30 38 115 144 52 65 147 184 66 83 229 286 103 129 285 356 129 161 373 466 169 211 476 595 216 270 680 850 308 385. For isolation applications the pratt groundhog butterfly valve is designed to be buried and forgotten until needed. Today pratt provides the following range of superior products to the water, wastewater and power generation industries. Valve shutoff is affected by limit switch and physical stop settings. He series butterfly valve pratt industrial, emporia, kansas. Pratt sb series butterfly valve, sizes 2 through 12 top flange conforms to iso 5211 and kv industrial standard allowing a universal mounting pad for automation requirements which is suitable for most actuators in the market.
Innovative products for unique applications though many of the standard valves we produce are. Lower head loss means getting the most from your pumping station dollar. With the current nearly universal use of the resilient seat gate valve rsgv, zero leakage for 10 and smaller applications is now economically achieved with this valve. Lower torques mean less costly actuation packages, and the maintenancefree design helps keep your budget under. Henry pratt offers a wide variety of butterfly valves that meet or exceed awwa. In fact, the henry pratt company was the first to introduce many of the flow control products in use today, including the first rubber seated butterfly valve, one of the first nuclear nstamp valves, and the bonded seat butterfly valve. Based on the successful and fieldproven triton xr70 rubber seat butterfly valve concept, this design assures longer seat life, bubbletight closure and less pressure drop than conventional butterfly valves of this size and pressure class. Dezurik awwa butterfly valves meet the requirements of awwa c504 and c516 standards. High performance butterfly valve series 400 henry pratt company. Ibv indicating butterfly valve pratt ibv valve bodies are available with flanged connections.
Pratt butterfly valves pratt industrial, emporia, kansas. Pratt bf series waferlug butterfly valve, sizes 2 through 48 2 12 230psi, 1448 150psi. Mdt manual actuator with awwa nut, handwheel or chainwheel. Our unique design also creates a secondary stem journal seal.
Pratt he series butterfly valve westech industrial ltd. Bf series waferlug butterfly valves pratt industrial. Motor operated valve motor operated butterfly valves are powered with gear actuators, which convert multiple motor input turns into 14 turn valve operation. The test requires a 1 25mm wide strip of rubber to withstand a minimum 75 lbs.
The vf series butterfly valve product data sheets contain the necessary actuator sizing sheets. Storage it is good practice to store the sylax butterfly valve open with the handle. The americanbfv line is designed to provide long life, low headloss and troublefree performance. Aug 23, 2017 the pratt bf series butterfly valve is the resilient seated butterfly workhorse for these industries. Lug valves shall be design for installation between ansi 125150 flanges.
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