... neck flange, slip on flange, lap joint flange, thread flange, slip on flange, blind flange 1. Type: welding neck flange, slip on flange, lap joint flange, thread flange, slip on flange ... , EN, GB, AWWA, API, MSS, LWN, Orifice, 8-Figure flange4. Size: OD up to 5000mm5 Pressure: 75bls to 2500bls6. Marking: Require7 ...