Blind Pipe Flange is used whenever a line must be capped of at a flange. It is good practice to install blind pipe flange at the end od header or at location where future tie-ins are anticipated.

Blind flanges are also used extensively for manways, in which case a davit is recommended for ease in handling the unbolted manway cover.

Blind pipe flange is specified by ANSI B16.5 and ANSI B16.47

Blind Flange Standard

ASME,ANSI B16.5 / ASME,ANSI B16.47

JIS B 2220-2004 BL             EN1092-1 Type 05 

ATK24.200.02-90                DIN2527 PN10/16 Flange

Material Standards

For carbon steel Blind Flange

ASTM A105/N, S235JR / ST37.2 / Q235, P245GH , C22.8 / P250GH , 20# , 16Mn , 20Mn ,CT20 steel

Blind Flange Facing

Raised Face (RF) Type  /   Flat Face Type(FF)  / Ring Joint (RTJ)

Product Features:

Blind Flanges are well suited for high temperature and pressure applications. manufactured without a bore, Blind Flanges are used to blank off the ends of pipes, valves and pressure vessel openings

Size & Dimension Table for Flange

Jinan Aowei offers BL Flange in A105N, A105, ST37.2, C22.8, P245GH, ST37.2 High Yield & Carbon steel.

Email summer@jnaowei.com for all your flange buying needs.

The Picture below gives an overview of Blind Flange