Size: DN40-DN1200 Design standard EN12334, API594 Connection standard EN1092, ISO7005, ASME B16.1 Face to face ISO 5752 series 16, EN558 series 16, ASME B16.10 Testing standard EN12266-1, API598 Working pressure PN10/16: DN40-DN1200 PN25: DN40-DN600 150psi:1.5"-48", 250psi:1.5"-36"