PTFE Seat Wafer type Butterfly Valve

Nominal diameter: DN40-DN1200. Design standard: GB/T12238, BS EN 593, DIN 3354, API609, AWWA C504, BS5155, ISO10631. Top flange standard: IS05211. Face to Face: GB/T1221, BS5155. EN558. DIN3202. ASME B16.10, API609, IS05752. Flange drilling standard: GB/T17241.6. BS4504, DIN250L ASMEB16.5, BS10, AS2129, ANSIB16.1, ISO 7005-2. Testing standard: GB/T13927,BS5146, EN12266. API598.