This calculation does not take into consideration any required corrosion allowance if needed.Easily swap between closing off and opening a section of the pipe for maintenance.We maintain more than 1 million pounds of blinds in stock and are ready to ship 24/7!The EZ Lock Blind Rack is the ideal solution for storing your paddle & hydrotest blinds.The EZ Vent Blind allows users to block flow on one side of the pipe flange while allowing an outlet to safely vent off gas or pressure on the other side.The EZ Purge Slip blinds create a safe purging area and prevent unneccesary damage related to outdated purging practices.USA Industries is one of the largest manufacturers of Paddle Blinds in both Isolation and Hydrotest thicknesses.We offer immediate delivery for in-stock blind flanges, and we stock a large variety of standard sizes in carbon steel and stainless steel.Thank you for submitting a quote request with USA Industries. In practice, these dimensions have been rounded round off upwards.Thanks for this amazing knowledge but ‘D’ dimension not mention here but overall excellentProjectmaterials.com is managed by Tecnos SA, a company that has shipped thousands of tons of metal products around the world since 2010.Address: Tecnos SA, Via S. Balestra, 10 6900 Lugano SwitzerlandIn normal conditions, spectacle blinds are installed in the open position and do not interrupt the flow of the fluid conveyed by the pipeline.To blind the pipeline, and interrupt the flow, the site staff has simply to unscrew the flange bolts and rotate the spectacle blind to its closed position.Spectacle blind in an open position: the conveyed fluid can flow through the pipeline.
This is when two separate devices are used, as they do not require rotation to be installed.FLANGE SPADE AND RING SPACER DIMENSIONS ASME B16.48 A leading ANSI ASME B16.48 Class 150 Spectacle Blind Flanges, Slip on Flanges – SORF, Weld neck Flanges – WNRF, Socket weld Flanges – SWRF, Blind Flanges – BLRF Lapped joint Flanges, Screwed Flanges, Long weld neck Flanges, Reducing Flanges, Spectacle Flanges, Ring joint Flanges manufacturer, stockholder & wholesaler in India 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. ring spacer are forged products used to blind pipelines (temporarily or permanently Class 150 Spectacle Blind / Line Blank;
Yes, this is frequently referred to as a blind/spacer set and is more commonly made in this configuration on larger sizes. Spectacle Blinds ASME B16.48 may be used for installation between ASME B16.5 flanges
are called “single-blinds” or “blanks”). This will help expedite our quoting process.A formalized quote typically takes 1 - 24 hours to generate, depending on the complexity of your quote request.We will start including you on our email notifications about new products, upcoming events and more!Thank you for reaching out to USA Industries. This is the preferred method as commonly available gaskets are used between the blind and flange. Yes.
On larger spec blinds it is common to drill a hole in the center of the tie-bar for a bolt to fit through which holds the blind in place. Ring spacers or Open Blinds are used to fill the space of Single Blinds when they are removed …
Titan's Spectacle Flanges and Blinds. Blinds are mounted onto one of the bolts so that when you need to isolate a section of pipe, it's easy!
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.
ANSI ASME B16.48 Spectacle Blind Flanges ANSI ASME B16.48 Class 150 Spectacle Blind Flanges ANSI ASME B16.48 Class 300 Spectacle Blind Flanges ANSI ASME B16.48 Search the world’s most viewed knowledge base for project materialsSpectacle blinds, spades, and ring spacers are installed between flanges to sections of a pipeline permanently or temporarily as shown in this Youtube video:Spectacle blinds are available in standard sizes up to 24 inches and in Where to buy spectacle blinds?
A Spectacle Blind is generally a piece of metal, typically carbon steel or stainless steel, that is machined to fit between two pipe flanges and usually set in between two gaskets. Spectacle Blind / Line Blanks.
Spectacle Flange Spectacle Flange consist of a connected ring (spacer) and a plate (spade). The spectacle blind is usually isolated from other facilities or devices in the pipeline system. This is not the preferred option because any damage to the gasket profile will make it unusable. Let us know the grade of stainless steel or alloy and we'll start production! For a male RTJ blind, the gasket profile is machined onto the blind. Single Blinds or Blanks are positive shut-off devices that prevent flow through a pipeline. a disc with a hole of the same bore size of the pipeline), the other is a solid disc.It is easy to understand if a spectacle blind is in an open or closed position, as one of the two discs is always outside the pipe (so when the ring is visible, the pipeline is closed; when the solid disc is visible outside, the pipeline is open). Titan's Spectacle Flanges, Single Blinds, and Ring Spacers are crucial pipeline accessories when a section of the pipeline may need to be isolated from the rest.
On small spec blinds the tie-bar (or web) typically fits between the bolt holes. Just let us know what you'd like it to be, and we can make them to any size requirements needed. This simple manuever closes the pipe and prevents flow, while simultaneously visually identifying that the pipe is closed. Should you desire the tie-bar to be made differently, let us know and we'll be happy to accomodate.
One of our experienced staff members will respond to you shortly.If this is the first time requesting a quote from USA Industries, please fill out the form below to help expedite the quote process!Thank you for providing this extra information! It is different than a valve in that the blind is a permanent or long term isolation device. (outside diameter) to the raised face gasket area.
One of our experienced staff members will respond to you shortly.For immediate assistance, please call us at (713) 941-3797 or Toll Free at (800) 456-8721. Any thickness, rating or alloy is available upon request.Sizes and thicknesses meet the following specifications:Blank thicknesses over 24 NPS were calculated using the equation for blanks in ASME B31.3 as follows:S (Basic Allowable Stress) and E (Quality Factor) values were determined from tables A1 and A1-A from B31.3 for 516-Gr 70 material with the temperature range of -20 to 100 degrees Fahrenheit.