JDMV100-01 (cast steel)are used for the marine pipeline of medium of temperature below 300oC of air,water etc.
JDMV100-01 (stainless steel)are used for the marine pipeline of medium of temperature below 200oC of corrode medium.As for the overpressure protection device.
Flange can be according to GB,JIS,DIN and etc.
Usually,1.6MPa,2.5MPa,4.0MPa, 6.4MPa.