butterfly valve material specification

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Depending on the need of the applications and the mechanical properties, the steel grade differs. Recommended for use in Class 150, to Class 600 Rating. the eccentric butterfly valve (double offset and triple offset): have one or more stub shafts (stems) which are located in anoffset position from the center of the valve. Cannot be used for hydrocarbon application service. But opting out of some of these cookies may have an effect on your browsing experience. The end-connection of the valve body is the most common classification for butterfly valve types. % 0000002218 00000 n endobj Specifically, the austenitic to ferritic part is about 50-50, composing of increased levels of molybdenum and chrome. This may be dependent on the amount of torque needed to open and close the valve or the speed at which it must operate. Fusible Link Valves '3`"A@A>nCS^ 2 0 +>" You may also choose from a variety of materials, seat design and end-connection. By clicking Accept, you consent to the use of all our cookies. Available with stainelss steel lever handle, stainless steel gearbox or direct mount stainless steel pneumatic actuator. The stainless steel butterfly features a investment stainless steel body and disc. Valve manufacturers use international standards as reference for valve designs for global use. We use cookies to enhance your experience in case of repeated visits. 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. The movement is calculated with a specific cone profile to address shut off of high pressure applications. /Type/ExtGState (Online Form), New! [/Separation/PANTONE#20Red#20032#20U/DeviceRGB 2 0 R] Your email address will not be published.

6 0 obj Nickel helps in maintaining a face-centered cubic (FCC) structure in stainless steel at very low temperatures preventing unwanted transformation to body centered cubic (BCC) arrangement. 35 0 obj <> endobj stream The most recent classification is precipitation hardenable and duplex. hbbd``b`$A,} The maximum pressure in your system should be lower than the rated maximum temperature and pressure of the valve. /Type/XObject Plus, they are more suitable for handling large industrial valve applications as compared with globe, gate, plug and ball valves. 1 0 obj International Organization for Standardization. In the first offset, the vertical shaft axis positions itself further backwards from the point of sealing (disc to valve seat). Investment cast, stainless steel butterfly valve is available in wafer and lug style types. Also, because of its cheaper price and easier installation procedure, many prefer this type of valve where it is economical and where other types of valve prices are out of the question. A high performance butterfly valve is a quarter-turn valve which consists of metal disk rotating about the circumference of a circular pipe. V Ball Valves Polytetrafluoroethylene (PTFE) or commonly known as Teflon is a synthetic fluoropolymer that is highly resistant to chemicals as compared with other plastics. 5 0 obj In this type of valve, there is a combination of the double offset design and an additional offset of the disk seat axis. Pneumatic Valves can be used for throttling or as throttle butterfly valves. It is lightweight and corrosion-resistant. Plus, PTFE lined seat has a low coefficient of friction which makes it ideal for low torque applications. 0000001768 00000 n Soft seated butterfly valves uses rigid PTFE (teflon) and are generally lower in price than metal seated. Specific gravity, viscosity, material content, composition (gas sieve service).

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. Sanitary Valves JFIF Adobe e C On the other hand, fire seated valves are manufactured with an extra layer of protection. >> When the butterfly valve body is scratched, for example by small metals that are not sifted in the preliminary processing stages, the chromium content battles with oxygen so as to prevent it from rusting. %PDF-1.6 % 568 0 obj <>stream

It is considered as one of the most resilient seated valve design for dead-end service. Since this type of valve does not have holes for bolting, flanged pipes with bolts secures the valve body to its place. /Type/ExtGState For this application, a lug style butterfly valve should be used. It is mandatory to procure user consent prior to running these cookies on your website. The following are some of the materials available for butterfly valves. Dead end service means the valves downstream flange is removed. Also, Hastelloy, a type of nickel alloy valve, is suitable for severely corrosive fluids that stainless steel cannot bear. flange valve butterfly pn20 flanged double pn10 blind spectacle dn250 asme b16 a516 cf8 a351 astm 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 <. Pictures on our website may differ from actual product. 2 0 obj 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. Stainless Steel Butterfly Valve [Series 1400], STAINLESS STEEL BUTTERFLY VALVE [SERIES 1400], Ask a Question or Request Customized Quote, Series 1400 (RTFE & Stainless Steel Butterfly Valve Body), Click here to fill out our distributor application. Your email address will not be published. This is true especially when its function is to handle large amounts of liquids or gases at low pressure differentials, such as in a hydroelectric power plant MIV system. An individual hole allows installation of two sets of bolts without a nut. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. End-connection type: wafer, lug, flanged or double flanged, butt weld; Seat material: soft (Teflon) or metal-to-metal (SS316 and Inconel); Eccentricity or offset design: centric or zero, double offset or double eccentric, triple offset or triple eccentric; Body and disc materials (Carbon steel, stainless steel, titanium alloy, nickel alloy, aluminum bronze); Mode of operation or actuation: electric, pneumatic, hydraulic, manual. /Filter/DCTDecode For this reason, Inconel butterfly valves are used for applications requiring heavy duty seats such as in handling bulkier fluids. Toll Free: 1-866-825-8672 | sales@valtorc.com. Also, they can withstand high temperatures than stainless steel. When the system detects that its about to exceed the air pressure, a diaphragm modulates the opening and closing amount of the butterfly valve. Huamei offers this type of valve in wafer and lug. << In this guide, we will run through some basic features and know-hows of the butterfly valves before we dive right in to its different types. If you are looking for the strongest industrial butterfly valve, Titanium alloy valve makes it at the top of your options. Necessary cookies are absolutely essential for the website to function properly. endstream endobj 567 0 obj <>/Size 556/Type/XRef>>stream Home Valves Butterfly Valves Stainless Steel Butterfly Valve [Series 1400], Product Description, Dimensions and Specifications PDF. Basically, the alloying content for chrome, nickel, molybdenum are varied by percentages to produce specific structures and properties. Click here to fill out our distributor application. Typically, those that have soft seats are concentric or lined type, while metal seated valves have eccentric designs. Copyright 2015 ~ 2022 Huamei Machinery Limited | All Rights Reserved. This product is also furnished with an Anti-Static Pin and Spring, eliminating the possibility of static discharge due to the isolation of the stem I disc from the body by the seat and stem bushings. /Type/ExtGState These valves have the same basic features as the standard series 1400 valve, but incorporates RTFE CoatedStainless Steel Bushings, Stainless Steel Q-Pin Retainer Plate, and availableStainless Steel Lever Operator,Stainless Steel Gear OperatororDirect Mount Stainless Pneumatic Actuator. 60 0 obj <>stream lined plastic diaphragm valves kdv valve @B+D:6``$@ t /Subtype/Image >> Hence, with this configuration, it is pretty easy to disengage one area of the pipe without removing the whole valve installation. Furthermore, the molybdenum content helps resist pitting. This material is covered by ASTM A216 standard (WCA, WCB, WCC), ASTM A352 LCB/LCC and ASTM A351 CF8/CF8M. The main purpose of Wafer Butterfly Valves is to maintain a unidirectional pressure or positive pressure. Butterfly Valves The FCC structure have more slip planes as compared with BCC structure, making it more flexible for relieving compressive stresses. It also has a low frictional coefficient that makes it resistant to abrasive wear. /Length 13359 << 4 0 obj In the second offset, the shaft axis goes off the center of the pipe. Knife Gate Valves Control Valves Carbon steel is a combination of carbon alloy and iron. ? These types of valves use an electric actuator for operating the valve in an open and close position. Also, the wetted parts should be compatible and in contact with the fluid being measured. endstream endobj 36 0 obj <> endobj 37 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text]>>/Rotate 0/Type/Page>> endobj 38 0 obj <>stream /BitsPerComponent 8 %%EOF Nickel aluminum bronze is a composition of 10% aluminum, 5% iron and 5% nickel. For carbon steel butterfly valves, the most popular grade for body material and disc is the WCB and LCC Steels. Hence, depending on your application, it need not be opened more than 60 or 70 angular degrees from its closed position. They can also be fire-proof seated butterfly valves. endobj %PDF-1.4 % A Lug-style valve is a versatile solution for chemical handling that can withstand high temperatures of up to 200 C. Sizes may range from 2 to 60 in and can generally accommodate saturated steam at 200PSI and 450PSI. Overall, you can use butterfly valves in a wide variety of industrial applications for throttling, flow control, and pressure control purposes. hUn;?CPP)HQ$>t&{$9 Y7o{u`<3I)BX1ig2L@0&($k>"#t>1n#<6pPw_Y7Qhaa. There are different sizes of the valves depending on the input and output sizes and diameters. However, this type of valve comes with a higher price but with greater promises as compared with other types. 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. Automated Valve Packages Recommended body material: carbon steel, stainless steel, Hastelloy. n`` C;b >f(&rGDIh3jjjAJzvB A distinct feature of this valve is in prevents biofilm formation.

0000003297 00000 n 0 The valve looks like a butterfly with its outer loops to hold the valve tight in place. With the triple offset design, sliding between the seat and disk can be eliminated. The Stainless Steel 304 body butterfly valves are less resistant to corrosion but have good strength. 0000003375 00000 n Feel free to contact us for quotation. Valve Mounting Kit, Please fill out our credit application for purchase orders and net terms. As compared with PTFE, reinforced PTFE butterfly valve can be used for high pressure and temperature applications. 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). It doesnt use a limit switch like the electric-operated butterfly valves, but instead, uses the following for operation: These types of valves are used for applications requiring huge impacts or force for opening and closing the valve. Inconel 625 is generally stronger than stainless steel and keeps its tensile strength even at higher operating temperatures. Recommended for Class 150 to Class 600 Rating. Or just call us now. <<979C6EE41670D9499A2252C745E97A4B>]>> Stainless steel butterfly valves specialize in corrosive piping applications. /Width 409 Handling temperature ranges from -100F to +450F. Nickel Aluminum bronze butterfly valves are corrosion resistant valves for seawater piping systems. High pressure valves are also available for piping applications requiring high pressure. You can use this type of valve as shut-off device because of its installed gear box which functions to control the disc in varying positions. While WCB high performance butterfly valve is used for high temperature applications, LCC valves or cast steel is used for low temperature services. Please note, all Valtorc quotations are valid for 60 days. Generally, there are two types: soft seated and metal seated. Nickel alloy butterfly valves are one of the strongest and most versatile types of valve. A distinct feature of a butterfly valve is it can cope with high-pressure recovery, but can only accommodate low-pressure drops. 3 0 obj 0000000822 00000 n

There are different grades of materials that are used to produce these valves. Pneumatic Butterfly valves are typically used for transferring compressed and pressurized air. $, !$4.763.22:ASF:=N>22HbINVX]^]8EfmeZlS[]Y (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.

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butterfly valve material specification