Name: Spectacle Flanges Manufacturer In India As Per Astm A105, Astm A516 Grade 60 / 70 & Astm A182 F304, F304l, F316, F316l
Brand: New Era Pipes & Fittings
Availability: InStock
Rating: 5 (25 reviews)

Question 1

Where are Spectacle Flanges commonly used?

Accepted Answer

They are widely used in process pipelines that require regular isolation for inspection, hydro testing, or repairs. Industries such as petrochemicals, power generation, offshore drilling, LNG terminals, and pulp & paper favor spectacle flanges because they allow quick line blanking without full disassembly. They’re also installed at strategic shutdown points in plants to meet OSHA or API safety requirements.

Question 2

What standards govern Spectacle Flanges?

Accepted Answer

Spectacle Flanges are primarily manufactured to ASME B16.48 (Line Blanks), which covers dimensions, tolerances, pressure ratings, and marking. Projects in Europe may also specify EN 1092 1 or DIN standards. Compliance ensures interchangeability, reliable sealing, and global acceptance in regulated industries.

Question 3

What materials are available for Spectacle Flanges?

Accepted Answer

Common grades include carbon steel (A105), stainless steel (304, 304L, 316, 316L), low temperature steel (A350 LF2), duplex & super duplex, and high nickel alloys (Inconel, Hastelloy). Material choice depends on fluid type, operating temperature, and corrosion potential. Exotic alloys are often specified for offshore or sour service conditions to meet NACE MR0175 requirements.