Spectacle Flanges – Carbon & Stainless Steel, PN & ANSI Class, ½” to 48”

Spectacle flanges, also known as figure-8 blinds, are mechanical devices used in pipeline systems for isolating sections or performing maintenance without complete disassembly. This type of flange comprises two metal discs connected by a small section of flat bar: one disc is solid (blind) and the other is open (spacer). Available in carbon steel (A105, ASTM A234, SS400) and stainless steel (SS304/L, SS316/L), these flanges are designed to suit a wide size range from ½” to 48” (15 NB to 1200 NB) and various pressure classes including PN6 to PN40 and ANSI 150 to 1500 lbs. Suitable for petrochemical, oil & gas, and process industry use, the spectacle flange simplifies operations that require frequent flow interruption and line separation.

Specification:

– Product Type: Spectacle Flange (Figure-8 Blind)
– Material Options:
 • Carbon Steel: ASTM A105, A234, SS400
 • Stainless Steel: SS304, SS304L, SS316, SS316L
– Size Range: ½” (15 NB) to 48” (1200 NB)
– Pressure Ratings:
 • PN Standards: PN6, PN10, PN16, PN25, PN40
 • ANSI Ratings: 150, 300, 600, 900, 1500 lbs
– Standards: ASME B16.48, ANSI B16.5, DIN, EN1092
– Face Type: Raised Face (RF) or Flat Face (FF)
– Coating:
 • Carbon Steel: Black painted, epoxy coated
 • Stainless Steel: Pickled and passivated
– Application: Piping systems requiring periodic flow isolation
– Origin: China, India, Korea

For further specifications or to inquire about this equipment and ReflowX's logistics services, Please contact ReflowX at info@reflowx.com