Style blind pipe size inch 6 outside diameter inch 11 material grade 304304l distance across bolt hole centers inch 912 number of bolt holes 8. Paddle blank type 1 click any image above to enlarge it and lock it in place, then scroll to the bottom table for dimensions spectacle blind flange classes choose your pressure class below. Special flanges spectacle blinds, spades and ringspacers. All manufacturing information is printed on the handle of the slide blind. A blind flange is a solid disk used to block off a pipeline or to create a stop. We provide a diverse stock of spectacle blind flanges, skillet blind flanges, forged steel blind flanges, and more. The blind flange is used to close ends of piping systems. Looking for grainger approved blind flange, welded, 4 pipe size pipe fitting 4txe6. A spectacle blind is often made from two metal discs that are attached to each other by a small section of steel. The raised face concentrates more pressure on a smaller area.
Media in category spectacle blind flange the following 3 files are in this category, out of 3 total. With a multitude of blind flange options, we have what you need to complete your project. A spectacle blind or spec blind, abbreviated as sb, is a safety device used to isolate a section of line or piece of equipment when the line or equipment needs to be inspected or removed from service. A spectacle blind flange also known as a figure8 blind flage is generally a piece of metal that is cut to fit between two pipe flanges and usually sandwiched between two gaskets. Looking for gf piping systems pvc blind flange, socket, 4 pipe size pipe fitting 1vfr4. Spectacle blind flanges, stainless steel spectacle blind.
Gf piping systems pvc blind flange, socket, 4 pipe size. It is different than a valve in that the blind is a permanent or long term isolation device. A spectacle blind flange also known as a figure8 blind is generally a piece of metal that is cut to fit between two pipe flanges and usually sandwiched between two gaskets. Blind flanges are commonly produced and stocked in several different materials. A spectacle blind flange is often made from two metal discs that are attached to each other by a small section of steel. The difference is that spectacle blinds may need some space to be rotated, and this space is not always available due to the routing of the piping system. Blind flange definition is a cover plate bolted or otherwise fastened across a pipe flange to seal the pipe. In pressure classes 150 and 300, the height of raised face is approximately 1. The spectacle blinds, spades and spacers are flame cut from plate material and are machined with a smooth or stock finish gasket contact surface. Thick single blinds or rigid piping systems normally require ring spacers. The spectacle flange can be rotated to place either the solid or hollow end within the pipe system, thereby opening or closing the flow.
We provide a large selection of spectacle blind flanges available in spectacle blind flanges in best quality. This blind flange is available in various sizes and materials and is used to provide positive closer on the ends of pipes, valves or equipment nozzles. Blank thicknesses over 24 nps were calculated using the equation for blanks in asme b31. We have a large inventory of stainless steel flanges for your piping needs. Ring spacers are bored to the matching pipe id and are the same thickness as the single blind that it replaces. A blind flange is round plate which has all of the relevant boltholes but no center hole, and because of this feature this flange is used to close off the ends of a piping systems and pressure vessel openings. A spectacle blind is a safety device used to isolate a section of line or piece of equipment when the line or equipment needs to be inspected or removed from service. A spectacle blind flange allows you to be absolutely sure that an item of equipment is properly and securely blanked off with no possibility of any flow or leakage through a valve during maintenance. Stainless steel raised face blind flanges stainless. Again, 2 inch, 150 pound, blind flange, no bore in it. With over 35 years of flange design and manufacturing experience, buffalo flange has the expertise necessary to produce highquality, blind flanges that meet a variety of specifications. A blind flange, abbreviated as bv, is a piping component for covering or closing the end of a pipe, valve, vessel or tank.
The shape is similar to a pair of glasses or spectacles hence the name spectacle blind. Titan offers standard dimensions for its spectacle flanges and blinds, as given on the catalog sheet. Please note, however, that titans fabricated products are made to each. One part is a blind plate,the other part is a ring which has a same outer diameter with the first part.
Although titans standard spectacle flanges and blinds are stainless and carbon steel, titan has a full range of material selections dimensions and specifications. Spectacle flange, spectacle blind flange, figure8 blanks. Spectacle blind flanges, spectacle blind flange, standards. Blind flanges are commonly used in petrochemical, pipe. The spectacle blind flange is used between two flanges, the two sides of the spectacle should be touched with the sealing face of two flanges, so the flanges should have sealing face to match with the flanges face. The spectacle blind is usually used on the oil line with two different functions.
It is useful for making repairs to a pipeline and also for expansion or continuation of. Hdpe blind flanges are not pressure rated metal backup ring required for sealing at moderate pressures size inch part no. The shape is similar to a pair of glasses or spectacles hence the name. Msc industrial supply is here to support all your metalworking and maintenance repair needs with over 1 million products in stock and ready to ship today. A spectacle blindis a combination of a single blind solid plate and a ring spacer manufactured, for field convenience, as a single unit. This is another example of a stainless steel flange. One end of the spectacle flange is solid, while the other end has a hole in the center. We have what youre looking for and ship our blind flanges worldwide. Spectacle blind flange asme class 150 pn16 spectacle blind flange asme b16. Spectacle blind flanges are widely used in special circumstances with their main advantage being that they can be attached to the pipe without welding.
Blind flanges ipsdips hdpe blind flanges commonly used for closure or nightcapping of flanged pipes. For the height measures h and b of all described dimensions of flanges on this website, with exception of the lap joint flange, it is important to understand and remember the following. Commonly, the spectacle flange face should be same with the pipe flanges, it could be raised facerf, flat faceff or ring type. Flate face ff, raised face rf, ring type joint rtj ss flange standards types and pressure class. Our inconel alloy spectacle blind flanges is actually made to move the pressure to pipe, but in such a manner that it inclines the high pressure absorption at the sordid. Astm asme asa 105 astm asme a 350, astm a 181 lf 2 a516 gr. S basic allowable stress and e quality factor values were determined from tables a1 and a1a from b31.
Spectacle flange supplier siddhagiri metals and tubes is an iso 9001. We carry a full line of stainless steel raised face blind plate flanges, used to block the end of a pipe system or valve. A spectacle blind is a safety device used to isolate a section of line or a piece of equipment when the line or equipment needs to be inspected or removed from service. These flanges are used for capping off or terminating another flange. Blind flanges are typically provided with raised face or ring type joint rtj facing. A spectacle blind flange also known as a figure8 blind flange is generally a piece of metal that is cut to fit between two pipe flanges and usually sandwiched between two gaskets.
Blind flange, welded, 4 pipe size pipe fitting grainger. Spectacle blind flange largest inventory rental or. Again, its hard to see how the 2 inch fits on it, but the outer diameter matches what a 2 inch flange is. Figure 8 or spectacle blind, is made by a steel spade and spacer, united by a welded handle. Blind pipe flanges are typically provided with a raised face, flat face, or rtj facing. Spectacle blind flanges, spectacle blind flange, spectacle flanges, spectacle blind flanges manufactory. Dimensions from spectacle blinds, spades and ring spacers, you will find in the main menu flanges asme b16. Blind flanges spectacle blind, skillet blind, figure 8. A spectacle blind combines a flange spade and a ring spacer in a single device this is the reason why flange spades are called single blinds or blanks. These super duplex steel spectacle blind flanges are wellknown from other forms by their extensive pointed centre and self possessed evolution of thickness in the area, by linking them in course of the pipe. Spectacle blind may have a different type of joint face rf raised face, ff flat face, rtj ring joint, depending the type of flange.
This is a blind flange, and as the name says, there is no bore in it, just a blind flange. It is a kind of round plate with no center hold but with all the proper bolt holes. The hot tools slide blind is absa approved and falls under asme b16. Spectacle blind flanges, welding neck flange, slip on flange, blind. First one is spectacle blind flange also called figure 8 flange,its the most regular spectacle flange.
Vents are available in the middle, top, or bottom of your flange and with. Blind flange definition of blind flange by merriamwebster. When used at the end of a pipe, vessel or tank, it provides an easy open access for further extension of the pipe. When removing a single blind, either the flange and associated piping must be pulled together to seal the line, or a ring spacer must be installed to fill the gap. Contact supplier ansi blind flange floor the new pipe. Spectacle blind flanges, ss spectacle blind flanges.
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