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Spectacle Blind Flange/Figure 8 flange
FF Blind flange,RF Blind flange,RTJ Blind flange
Product Features:
A Spectacle Blind Flange(also called Figure 8 flange) is a pressure-retaining plate with one solid end and one open end connected with a web or tie bar.
Size: 1/2″ to 96″
Pressure class: Class 150 to Class 2,500, PN 2.5 to PN 250
Facing: RF / RTJ
Product
INFORMATION
Spectacle flanges, also known as spectacle blind flanges or Figure 8 flanges, are most commonly used on piping systems that need to be separated regularly or where the flow through the systems is regularly stopped. One end of the spectacle flange is solid, while the other end has a hole in the center. The spectacle flange can be rotated to place either the solid or hollow end within the pipe system, thereby opening or closing the flow. Similar to a flat face flange, the surface of the disc is flat (suited for flat face gaskets, for low-pressure applications). likewise raised face flanges, there is an additional thickness on the surface of the disc. This type fits semi-metallic gaskets, as the spiral wound type. a groove is inscribed on the surface of the disc. This type is used in conjunction with ring joint gaskets. The function of the blind flange is the same as that of the head and the pipe cap, except that the seal of the blind plate is a detachable sealing device, and the seal of the head is not ready to be opened again. There are many types of sealing surfaces, including plane, convex, concave, convex, mortise and groove surfaces, and ring connection surfaces. Materials are carbon steel, stainless steel, alloy steel, copper, aluminum, PVC, and PPR. The spectacle blind plate is commonly used for the pipeline flange, which needs to change the process. The material mainly includes carbon steel, stainless steel, and alloy. It can be selected according to the pipeline pressure grade and pipeline medium. Spectacle Blind Flanges: Applications, Benefits, and Selection, please click here. Request Your Blind Flange Solution Call/WhatsApp: +86 180 0311 9682Spectacle blind flanges types:
There are three types of spectacle blinds:
1. Flat face spectacle blind (FF) flange
2. Raised face spectacle blind (RF) flange
3. Ring joint face spectacle blind (RTJ) flange
Specification of Spectacle Blind Flanges
Standards ANSI/ASME B16.5, B16.47 Series A & B, B16.48, EN-1091, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 Size Chart 1/2″ to 96″ Pressure Calculation in DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Spectacle Blind Flange Pressure Rating ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Spectacle Blind Flange UNI 6Bar 10Bar 16Bar 25Bar 40Bar Spectacle Blind Flange JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Spectacle Blind Flange Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Spectacle Blind Flange EN 6Bar 10Bar 16Bar 25Bar 40Bar Spectacle Blind Flange Most common types of Spectacle Blind Flange Forged / Threaded / Screwed / Plate Connect Type/ Flange Face Type Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove Functions: Blind flange VS. spectacle blind flange
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Testimonials
“This product is exactly in line with our requirement technically and competitive commercially.”
Anton
Russia
“The flanges are exactly in line with our requirement technically and competitive commercially.”
Boran
Turkey
“We tested the elbows and flanges, their performance is very nice. We will make the new purchase plan for the warehouse.”
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Oman
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