Features: 1) Size: 1-1/2" - 72", DN40 - DN2000 2) Pressure: Class125 - Class300, PN6 - PN40 3) Design and manufacture standards: a) Wafer and lug: API 609, Din3354 b) Flange and weld: BS5155 / EN598 4) Inspection and test standards: API 598, DIN3230, BS5146 5) Face to face: flange, ISO 575