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Datasheet generated 2026-10-08
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ANSI B16.5 Blind Flange 3" 150# A105 Carbon Steel

Generic · Pipes, Fittings & Flanges · Flanges
Part Number
B16.5-BL-3-150  ·  HS 7307.21
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ANSI B16.5 blind flange, 3" (NPS 3) Class 150, ASTM A105 carbon steel. Raised-face blind flange for terminating a piping run, closing a vessel nozzle or providing a future connection point. Standard dimensional data per ASME B16.5 (see our ASME B16.5 Class 150 flange dimensions guide). Applications: general process piping, marine, oil & gas, water. Interchange to EN 1092-1 blind flange requires check of bolt pattern (see PN16 vs Class 150 compatibility note).

Technical Specifications

StandardASME B16.5
TypeBlind (BL)
Nominal Size3"
Class150#
MaterialASTM A105 Forged Carbon Steel
FaceRaised Face (RF), Ra 3.2-6.3 μm
Max Working Pressure20 bar @ 38°C
Test Pressure1.5x rated
Temperature-29°C to +427°C

Properties

MaterialASTM A105 Carbon Steel
Pressure rating150# (20 bar)
Temperature range-29°C to +427°C
Primary standardASME B16.5
MOQ1

Standards

Approvals

Attached Documents