Design Standard: EN1171 Testing Standard: EN12266-1 Sizes: DN40-DN600 Norminal Pressure: PN10 / PN16 / PN25 Connecting Ends: Double RF Flanges, Drilled to EN1092; Socket Ends Face-To-Face Dimensions：EN558-1 F4，F5, BS5163

Design Standard：Manufacturer's Standard Sizes：250Nm - 24,000Nm Flanges： IS05211

Design Standard: API609 / EN593 Testing Standard: API598 / DIN EN12266-1 Sizes: 1.5”-40” / DN40-DN1000 Pressure Rating: 150 PSI / 200 PSI, PN6 /PN10 / PN16 Connecting Ends：Wafer / Lug / Double Flanges, Multi-Drilled To EN1092 PN10/16 & ANSI B16.5

Design Standard：EN593 Testing Standard：DIN EN12266-1 Sizes：DN150-DN4000 Norminal Pressure：PN6 / PN10 / PN16 / PN25 Connecting Ends: Double RF Flanges, Drilled to EN1092 Face-To-Face Dimensions: BS5155, EN558-1