Spectacle Blind Flange
Garg Steel Tube Company manufactures premium Spectacle Blind Flanges designed for effective flow isolation and safe maintenance operations in piping systems. Featuring a solid disc and a ring connected by a metal web, spectacle blind flanges allow operators to easily switch between open and closed positions without removing the flange assembly. These flanges are commonly used in oil & gas, chemical processing, petrochemical plants, and power generation facilities where safety and operational reliability are critical. Engineered to meet international standards and fabricated from high-quality materials, Garg Steel Tube Company’s Spectacle Blind Flanges deliver excellent sealing performance, structural integrity, and long service life under demanding pressure and temperature conditions.
Enquire NowStandard Specifications of Spectacle Blind Flange
| Standards / Dimensions | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, BS, GOST, MSS SP-44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605 |
| Size Range | ½″ (15 NB) to 48″ (1200 NB) |
| Flange Face / Connection Type | Flat Face Flange (FF), Raised Face Flange (RF), Ring Joint Flange (RTJ), Lap Joint Flange, Male and Female Flange (M&F), Large and Small Tongue-and-Groove Flange (T&G) |
| DIN | ANSI B16.5, ANSI B16.47 Series A & B, ASA, API-605, MSS SP44, AWWA, Custom Drawings |
| BS Standards | BS4504 , BS4504, BS1560, BS10 |
| Class / Pressure Rating | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
Material & Grades of Spectacle Blind Flange
Stainless Steel
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L
Duplex & Super Duplex Steel
S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 & ASTM / ASME A/SA 182, A240 F 44, F 45, F51, F 53, F 55, F 60, F 61
Carbon Steel
ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Low Temperature Carbon Steel
ASTM A350 LF2, LF3
Alloy Steel
AASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Nickel Alloy
Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II)