BL / Blind Flange

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The blind flange belongs to the non-hubbed type that is specially used to block the pipe. It is applicable in the fields, including the pressure vessel making, petroleum conveyance, chemical industry, ship making, pharmacy, metallurgy, machinery manufacture, food process, etc.
1. Its sealing face can be various, and material can be carbon steel, stainless steel, or alloy steel, according to the application.
2. The surface of our product after specially treatment shows nice appearance and good heat, pressure, and oxidation resistance.

Technical Parameters
Nominal diameter 3/8"~60" (DN10~DN1500)
Nominal pressure CLASS150~CLASS2500 (US)
PN6~PN100 (EU)
Production standard GB/T9112-2000
GB/T9123.1-2000 GB/T9123.2-2000 GB/T9123.3-2000 GB/T9123.4-2000
GB/T9124-2000
SH/T3406-1996
JB/T74-1994
JB/T75-1994
JB/T86.1-1994 JB/T86.2-1994
HG/T20592-2009 HG/T20614-2009
HG/T20615-2009 HG/T20623-2009 HG/T20635-2009
ASME B16.5-2009 ASME B16.47-2006
MSS SP 44-2006
EN1092-1-2007 EN1759-1-2004
DIN2527
BS1560-3.1-1989 BS4504-3.1-1989
AS2129-2000
JIS B2220-2004

Structural Diagram

As an experienced BL / blind flange manufacturer and supplier in China, our company offers a comprehensive range of products that includes PL /plate weld flange, LWN / long welding neck flange, spectacle blind flange, and more.

Related Names: Blank Plate | Stop Plate | Flange for Covering End of Pipe | Steel Blind Flange

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