Alloy Steel Spectacle Blind Flanges

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 CHART OF ALLOY STEEL SPECTACLE BLIND FLANGES

SpecificationASTM A182 / ASME SA182
Size Chart1/2″ (15 NB) to 48″ (1200NB) DN10~DN5000
StandardsANSI/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 ANSIClass 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
Pressure Calculation in DIN6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
UNI6Bar 10Bar 16Bar 25Bar 40Bar
EN6Bar 10Bar 16Bar 25Bar 40Bar
CoatingOil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Test CertificatesEN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Production TechniqueForged, Heat treated and machined
Connect Type/ Flange Face TypeRaised 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
15 NB (1/2″) to 200 NB (8″)
Equal and Reducing Configurations

TestDirect-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
EquipmentPress 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.
BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange

B.S: BS4504 , BS3293, BS1560, BS10
AS 2129: Table D; Table E; Table H
ANSI B16.18, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
ANSI : ANSI B16.47(API605), MSS SP44, ANSI B16.36, ANSI B16.48
ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
American standard (ANSI)
German (DIN)
British standard (BS)

DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 ASTM A182 f9 Alloy Flanges
The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
GradesAlloy Steel f1, f5, f91, f11, f9, f22

A VARIETY OF SPECTACLE BLIND FLANGES

ALLOY STEEL SPECTACLE BLIND FLANGE INTERNATIONAL STANDARDS

Steel GradesUNS DesignationSteel Names
ASTM A182 f1K12822C-0.5Mo
ASTM A182 F2K121220.5Cr-0.5Mo
ASTM A182 F5K415455Cr-0.5Mo
ASTM A182 F5aK425445Cr-0.5Mo
ASTM A182 F9K909419Cr-1Mo
ASTM A182 f10S3310020Ni-8Cr
ASTM A182 F91K909019Cr-1Mo-V
ASTM A182 F92K924609Cr-0.5Mo-1.8W-V
ASTM A182 f11 CL1K115971.25Cr–0.5Mo–Si
ASTM A182 f11 CL2K115721.25Cr–0.25Mo–Si
ASTM A182 f11 CL3K115721.25Cr–0.5Mo–Si
ASTM A182 f12 CL1K115621Cr-0.5Mo
ASTM A182 f12 CL2K115641Cr-0.5Mo
ASTM A182 F22 CL1K215902.25Cr-1Mo
ASTM A182 F22 CL3K215902.25Cr-1Mo
ASTM A182 F21K315453Cr-1Mo
ASTM A182 f122K91271
ASTM A182 F911K91061
ASTM A182 F3VK31830
ASTM A182 F3VCbK31390
ASTM A182 F22VK318352.25Cr-1Mo-V
ASTM A182 F23K41650
ASTM A182 F24K307362.25Cr-1Mo-0.25V-Ti-B
ASTM A182 FRK22035
ASTM A182 F36K210011.15Ni-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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