Stainless Steel Blind Flange 304
AISI 304 blind (blank) flanges for terminating bolted flange pairs, blanking unused branches, and hydrostatic testing of stainless systems. Quoted and sold per piece.
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Available Sizes & Finishes
13 sizes available
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Applications & Selection Guide
Stainless steel blind flanges in AISI 304 to EN 1092-1 Type 05 — solid discs drilled to the standard bolt pattern, closing flanged joints without welding.
Blinds seal off spare nozzles on stainless tanks and vessels, terminate future-expansion points, and blank lines during pressure testing — all reversible by unbolting. Match PN and DN to the mating flange from the table above and use a gasket compatible with your process medium and CIP chemistry.
Quoted and sold per piece. Send PN, DN, quantity, and destination in a quote request; matching gaskets and stainless bolt sets available.
Listed sizes are PN16 from DN15 to DN400. DN15 has a 95 mm outside diameter and 4 × M12 bolts; DN400 has 580 mm and 16 × M27. Up to DN150 a PN16 blind also fits PN10 flanges; from DN200 the bolt patterns differ, so state PN10 in the quote request when the mating flange is PN10.
Technical guides
304 vs 316 stainless steel: composition, strength, corrosion resistance and when to use each
How 304 (1.4301) and 316 (1.4401/1.4404) stainless steel differ in composition, PREN, strength and chloride resistance, what the L grades and A2/A4 fasteners mean, and which grade to choose.
Read the guide →Flange dimensions: EN 1092-1 PN6 to PN40 and ASME B16.5 Class 150 and 300
Flange dimension tables for EN 1092-1 PN6, PN10, PN16, PN25 and PN40 and ASME B16.5 Class 150 and 300: outside diameter, bolt circle, number and size of bolts, and why PN and Class flanges do not mate.
Read the guide →Product Information
Material Grade
AISI 304
Manufacturing Standard
EN 1092-1
Material Type
Stainless Steel
Category
Blind Flange
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