What is the flange specification of "BL50" (B) 16BF?
It should be nominal diameter DN50Nominal pressure PN16Form of flange sealing surface BF
BL50 (B) 16BFBL is the flange cap,50 is nominal diameter 50mm,(B) the use of metric tubes (also known as GB tubes),16 nominal pressure is 16MPa,BF is a sealed type, but there is no code in the standard. It may be RF for bursting face seal or FF for full plane seal.
BL indicates that the flange cap 50 is DN and B is the B series metric tube (also called GB tube),16 is the pressure, in HG20592-97 it is 160 kg pressure PN16.0MPABF hasn't heard of it. It has a RF face seal or a FF all flat sealing 16. It's 16 kg pressure PN16 in HG20592-2009
You write this too simple, I think it should be European standard PN16, the path is DN50, that is, 2 inch blind flange, that is, the flange cover, may also have to lug!
