In the Japanese standard, SOP is a plate flange and SOH is a plate flange with a hub.
JIS Flange are flanges with Dimensions as per JIS Standard, "JIS" Stands for Japanese Industrial Standard This kind of flange include lots of specification, like SOP, SPH, Blind flange, plate flange, welded neck flange, etc. Pressure grade from 5K 10K 16K 20K 30K, size range: 10A-1500A.
Both JIS flange and ASME flange material can be carbon steel, stainless steel and other alloy steel.
About JIS flange, the pressure is 5K,10K,16K,20K, 30K. Regarding the ASME flange, the pressure is 150LBS, 300LBS, 400LBS, 600LBS, 900LBS
Slip on, Weld Neck, Plate, Blind, Socket Weld, Thread, Lap Joint.
There is no difference in the way of JIS & ASME flange connection, JIS standard flanges for sale are suitable for connecting to JIS standard pipe end.
In the Japanese standard, SOP is a plate flange and SOH is a plate flange with a hub.
We have ISO and CE certificates.