Standards for DIN stainer:
Face to face:DIN3202
Flange end:DIN2531-DIN2545
Check and test:DIN3230-75
Stainer:20-40 meth for water
40-120 meth for gas
10-160 meth for oil
Standards for API/JIS stainer:
.End flange dimension:ASME B16.5 OR JIS B2238
.Pressure-temperature ratings:ASME B16.34
Design and manufacture:ANSI B16.34