butterfly valve material specification

They can also be fire-proof seated butterfly valves. Only the upstream flange provides the right amount of pressure while in service, but generally, a lug style used in dead end service should have a lower pressure rating. endobj Investment cast, stainless steel butterfly valve is available in wafer and lug style types. << The movement is calculated with a specific cone profile to address shut off of high pressure applications. Butterfly Valve Types by End-Connection Styles, #3 Flanged/Double Flanged Butterfly Valves, #2 Metal Seated (Stainless steel 316L/Inconel seats), Zero Offset/Concentric Disk (A609 Type A), Butterfly Valves According to Mode of Operation, Hydraulic piston and cylinder or hydraulic actuator butterfly valves, Butterfly Valves According to Application Specifications. Hence, different types of stainless steel butterfly valves material respond to different applications but distinct features such as corrosion resistance and machinability are universal for all stainless steel types. Titanium alloyed valves are coated with a layer that protects it from hypochlorite so its usual application is for carrying out processes in seawaters. /Range[0 1 0 1 0 1] 0000001329 00000 n Some pertinent valve specifications to ask the manufacturer are as follows: In addition to that, as a designer or engineer here are some things you should look into before choosing a butterfly valve type: Butterfly valves are suitable for large volumes of liquids and gases, but not for fibrous suspensions and dry bulk solids as they can erode the valve body. Manually operated valves are used in the old times and where areas doesnt have power for valve operation. Double Flanged butterfly valves are used for controlling, regulating and throttling flow. Toll Free: 1-866-825-8672 | sales@valtorc.com.

You also have the option to opt-out of these cookies. This helps provide a tighter seal. If you do not see a particular product on this page that you need, call our sales team at 1-866-VALTORC or locally at 770-423-7100 for an immediate quote and assistance and custom application quotation. Either way, this type of valve is easy to handle and is more affordable than other types of valves. The design is quite simple. In this type of valve, there is a combination of the double offset design and an additional offset of the disk seat axis. We have in-stock high quality and superb-performance Flowseal and Bray butterfly valves equivalents, but we also cater customized butterfly valve design specification according to your countrys application standards. The butterfly valve opens when the pressure of the fluid is higher than the set value. Wafer butterfly valves have a flexible seal that protects the system from backflows which occurs when bi-directional pressure occurs. Generally, there are two types: soft seated and metal seated. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. << Click here to fill out our distributor application. ? Duplex stainless steels butterfly valves can be available as wafer style or lug style, with a soft seat or metal to metal seat. /Length 62 Pneumatic Butterfly valves are typically used for transferring compressed and pressurized air. /ColorSpace/DeviceGray So during plastic deformation at freezing temperatures, the FCC structure presents the material with a suitable amount of ductility and toughness for cryogenic applications. You may also choose from sizes 2 to 60 in. If you are looking for the strongest industrial butterfly valve, Titanium alloy valve makes it at the top of your options. While WCB high performance butterfly valve is used for high temperature applications, LCC valves or cast steel is used for low temperature services. 3 0 obj The stainless steel butterfly features a investment stainless steel body and disc. The FCC structure have more slip planes as compared with BCC structure, making it more flexible for relieving compressive stresses. (Online Form), Investment stainless steel body and stem design, Designed with RTFE coated stainless steel bushings, Stem sealing by utilizing the seat as a primary seal, Double O-ring design isolates top bushing, Anti-static pin and pring eliminate static discharge, Available stainless steel lever, gearbox or actuator, Seat materials include: NBR, EPDM, Silicon and Viton, RTFE and stainless steel bush with stainless steel spring pack. /Height 465 It then closes when the downstream pipe needs to be bled. 0000003008 00000 n Due to continuous development of our product range, we reserve the right to change the dimensions, pictures and information contained on our website and product catalogs. >> << Hence, depending on your application, it need not be opened more than 60 or 70 angular degrees from its closed position. With the triple offset design, sliding between the seat and disk can be eliminated. Hence, they are not automatic. The most recent classification is precipitation hardenable and duplex. The combination of all these features (make this series of valves an excellent choice for applications in Aggressive Atmospheres and in Harsh Wash down Situations often incurred in Food Plants. Huamei offers this type of valve in wafer and lug. The force of the fluid over a pipe changes the pressure in the system, creating an impact on the spring force of the hydraulic actuator. Recommended for use in Class 150, to Class 600 Rating. Handling temperature ranges from -100F to +450F. Carbon steel is a combination of carbon alloy and iron. 0 An individual hole allows installation of two sets of bolts without a nut. For carbon steel butterfly valves, the most popular grade for body material and disc is the WCB and LCC Steels. Plug Valves Since this type of valve does not have holes for bolting, flanged pipes with bolts secures the valve body to its place. n`` C;b >f(&rGDIh3jjjAJzvB A Lug-style valve is a versatile solution for chemical handling that can withstand high temperatures of up to 200 C. Pneumatic Valves can be used for throttling or as throttle butterfly valves. AWWA Butterfly Valves These are valves as specified by the American Water Works Association. The back up ring keeps the seal stationary. Concentric Disk butterfly valve are suitably designed with the following points: The Double Offset or Double Eccentric Valve is a high performance butterfly valve which is designed with two offsets of the stem. endstream endobj 557 0 obj <>/Metadata 29 0 R/PieceInfo<>>>/Pages 28 0 R/PageLayout/OneColumn/OCProperties<>/OCGs[558 0 R]>>/StructTreeRoot 31 0 R/Type/Catalog/LastModified(D:20111115082639)/PageLabels 26 0 R>> endobj 558 0 obj <. D Necessary cookies are absolutely essential for the website to function properly. Fusible Link Valves $, !$4.763.22:ASF:=N>22HbINVX]^]8EfmeZlS[]Y Huamei is an OEM/ODM China manufacturer and exporter of high performance butterfly valves. 35 0 obj <> endobj On the other hand, Stainless steel butterfly valves can be used in processing corrosive substances as they have a higher resistance to corrosion than inconel. /Width 409 /OP false 0000001518 00000 n 0000002218 00000 n 5 0 obj In terms of cost, carbon steel is relatively cheaper than other types of butterfly valve material, but it cannot be used for corrosive applications. What are the International Standards for Choosing Butterfly Valve Types? Control Valves A high performance butterfly valve is a quarter-turn valve which consists of metal disk rotating about the circumference of a circular pipe. Elastomer should be vulcanized to the body. As a supplier of the valves, we produce different types of valves such as the Stainless Steel flanged butterfly valve and other types. endstream A lugged valve has the ability to maintain a reliable body connection even without a downstream flange. This butterfly valve is also designed with an anti-static pin and spring to eliminate any possible static discharge due to the isolation of the stem and disc from the valve body. Nickel alloy butterfly valves are one of the strongest and most versatile types of valve. In this guide, we have classified butterfly valves into many types as summarized below.

556 0 obj <> endobj Your email address will not be published. /Type/ExtGState Reinforced Polytetrafluoroethylene (RTFE) or reinforced PFTE or reinforced Teflon is a valve seat material which is blended with filler compounds to provide additional compressive strength and prevent abrasive wear. xbba`b``3 1x0@ N 568 0 obj <>stream Eccentric butterfly valves are also defined as the double or the triple offset. get back to you with 2 business days. Austenitic SS316L butterfly valves contains high amounts of chromium and nickel with low carbon content. %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz Stainless steels can be austenitic, ferritic or martensitic. It is one of the most reliable solutions for large plants and applications. '3`"A@A>nCS^ 2 0 +>" High pressure valves are also available for piping applications requiring high pressure. Copyright 1999 - 2022, All Rights Reserved - Valtorc International. There are different types of valves and Suraj Metal Corporationmanufactures all different types such as the Stainless Steel lug butterfly valve and other types. 1 0 obj Cannot be used for hydrocarbon application service. For this application, a lug style butterfly valve should be used. The maximum pressure in your system should be lower than the rated maximum temperature and pressure of the valve. 556 13 The main purpose of Wafer Butterfly Valves is to maintain a unidirectional pressure or positive pressure. There are three offsets for triple offset butterfly vavles all mounted eccentrically. Basically, the alloying content for chrome, nickel, molybdenum are varied by percentages to produce specific structures and properties. JFIF Adobe e C Stem sealing is accomplished by utilizing the seat as the primary seal. SW, The butterfly valve symbol in P&ID diagrams is shown in this image, A concentric butterfly valve (left), a double offset butterfly valve (center), triple offset butterfly valve (right). endstream endobj 36 0 obj <> endobj 37 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text]>>/Rotate 0/Type/Page>> endobj 38 0 obj <>stream Sizing between 1 1/2" - 12" with RTFE coated stainless steel bushings. Sizes range from 1.5" to 12.0" in both Wafer and Lug. The following are some of the materials available for butterfly valves. Specifically, the austenitic to ferritic part is about 50-50, composing of increased levels of molybdenum and chrome. As the stainless steel material is a combination of iron, nickel, chrome (10.5%) and sometimes Molybdenum, it possesses both strong acid endurance and strength of steel. 0000001014 00000 n When you choose a butterfly valve, check the rating. >> Gate & Globe Valves Check & Needle Valves A distinct feature of this valve is in prevents biofilm formation. 0000003297 00000 n Stainless steel butterfly valves specialize in corrosive piping applications. For duplex stainless steels, there is a balanced structure between the FCC and BCC arrangement of material component. V Ball Valves

Plus, they are more suitable for handling large industrial valve applications as compared with globe, gate, plug and ball valves. The end-connection of the valve body is the most common classification for butterfly valve types. Furthermore, the molybdenum content helps resist pitting. The lugs provides an easy way for alignment of the two flanges sandwiching the lug valve during installation.

Body material selection can be based on what type of fluid is to be shut-off, the temperature and pressure of the medium and system. <<979C6EE41670D9499A2252C745E97A4B>]>> Most Common types of Stainless Steel Butterfly Valve, Dimensions Schedule of PN16 Butterfly Valve, Stainless Steel Butterfly valve Constrution, Petro- Chemical, Oil & Gas, Purity & Some Marine & Industrial. Download here, Apply to become an official protected distributor. Butterfly valves API 609 can be classified according to their offset design. Nickel Aluminum bronze butterfly valves are corrosion resistant valves for seawater piping systems. It is mandatory to procure user consent prior to running these cookies on your website. Butterfly valves are also available in many types of materials and combinations of materials for the body, disc and seat. Recommended body material: carbon steel, stainless steel, Hastelloy. Butt welded butterfly valves are directly welded in the pipeline for high pressure applications. We also use third-party cookies that help us analyze and understand how you use this website. Plus, PTFE lined seat has a low coefficient of friction which makes it ideal for low torque applications. The combination of these feature make this series of valves and excellent and ideal choice for applications in aggressive atmospheres and harsh wash down situations - often incurred in food plants.

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butterfly valve material specification