Alloy Steel Spectacle Blind Flanges are manufactured, exported, and supplied by Trimac Piping Solutions, a prestigious manufacturer, exporter, and supplier. We use the best minerals available on the market to create our products. We use tools and technology from the area to make our products. We sell Alloy Steel Spectacle Blind Flanges at a low price because we are one of India’s most recognized suppliers. Alloy Steel Spectacle Blind Flanges are like a pair of glasses and are therefore named spectacle blind flanges. They are like two metal discs joined together by a section of metal to form the flange. These flanges are also popularly known as ‘figure8 flanges.’ The primary role of these alloy steel spectacle blind flanges is that they can easily rotate to open and close the flow from pipes. They are widely used in applications that operate at sub-zero temperatures and are volatile and toxic.
These Chrome Moly Spectacle Blinds are usually installed in an open position, without interrupting the flow of the fluid that has been transferred by the pipeline. Generally, these spectacle blind flanges are available in common diameters which range from ½ inch to 36”. These flanges are available in pressure classes ranging from 150 to 600 pounds while for RTJ flanges, the common pressure range is 300 to 2500 pounds.
The spectacle blind flanges are similar to blind flanges but different because they fit between two flanges. One side of these spectacle blind flanges is totally closed for it to complete the flow completely shut off, whereas the other end is open for full flow. Our products are put through a series of testing to verify that they are of high quality, safe, and long-lasting. All our products are made with extreme care and precision. These Alloy steel spectacle blind flanges are widely used in plumbing, water supply systems, heating and many more.
Specification | ASTM A182 / ASME SA182 |
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Size Chart | 1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000 |
Standards | ANSI/ASME B16.48, B16.47 Series A & B, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.48/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
Production Technique | Forged, Heat treated and machined |
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 |
Special design | As per your drawing AS, ANSI, BS, DIN and JIS |
Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
Manufacturer of | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc. B.S: BS4504 , BS3293, BS1560, BS10 The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276 |
Grades | Alloy Steel f1, f5, f91, f11, f9, f22 |
Steel Grades | UNS Designation | Steel Names |
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ASTM A182 f1 | K12822 | C-0.5Mo |
ASTM A182 F2 | K12122 | 0.5Cr-0.5Mo |
ASTM A182 F5 | K41545 | 5Cr-0.5Mo |
ASTM A182 F5a | K42544 | 5Cr-0.5Mo |
ASTM A182 F9 | K90941 | 9Cr-1Mo |
ASTM A182 f10 | S33100 | 20Ni-8Cr |
ASTM A182 F91 | K90901 | 9Cr-1Mo-V |
ASTM A182 F92 | K92460 | 9Cr-0.5Mo-1.8W-V |
ASTM A182 f11 CL1 | K11597 | 1.25Cr–0.5Mo–Si |
ASTM A182 f11 CL2 | K11572 | 1.25Cr–0.25Mo–Si |
ASTM A182 f11 CL3 | K11572 | 1.25Cr–0.5Mo–Si |
ASTM A182 f12 CL1 | K11562 | 1Cr-0.5Mo |
ASTM A182 f12 CL2 | K11564 | 1Cr-0.5Mo |
ASTM A182 F22 CL1 | K21590 | 2.25Cr-1Mo |
ASTM A182 F22 CL3 | K21590 | 2.25Cr-1Mo |
ASTM A182 F21 | K31545 | 3Cr-1Mo |
ASTM A182 f122 | K91271 | – |
ASTM A182 F911 | K91061 | – |
ASTM A182 F3V | K31830 | – |
ASTM A182 F3VCb | K31390 | – |
ASTM A182 F22V | K31835 | 2.25Cr-1Mo-V |
ASTM A182 F23 | K41650 | – |
ASTM A182 F24 | K30736 | 2.25Cr-1Mo-0.25V-Ti-B |
ASTM A182 FR | K22035 | – |
ASTM A182 F36 | K21001 | 1.15Ni-0.65Cu-Mo-Co |
About Us
Our fittings ensure that the pipeline lifelines of our industries are always perfectly suited. We at Trimac Piping Solutions consistently endeavor to manufacture fittings and flanges that are exceptional in quality, rich in material composition and made to perfection to endure forever.
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