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High and low pressure welding flange
Flange series
`Nominal pressure MPa (Psi): 13.8 (2000), 20.7 (3000), 34.5 (5000)
Nominal size and aperture D: in: 21/16, 29/16, 31/8, 41/16, 51/8.71/16, 9; mm: φ52.φ65. φ79.φ103.φ130.φ179.φ228
Temperature level: K, L, P, S, T, U, V
Material grade: AA, BB, CC, DD, EE, FF, 35CrMo
Specification level: PSL1. PSL2. PSL3
Temperature class: K, L, P, S, T, U, V
Model: DN50/65/80/100
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Buried flange
Flange series
`Nominal pressure MPa (Psi): 13.8 (2000), 20.7 (3000), 34.5 (5000), 69.0 (10000)
Nominal size and aperture D: in: 21/16, 29/16, 31/8, 41/16, 51/8.71/16, 9; mm: φ52.φ65. φ79.φ103.φ130.φ179.φ228
Temperature level: -29 ～ 121 ℃, P/U
Material grade: AA, BB, CC, DD, EE, FF, 35CrMo
Specification level: PSL1. PSL2. PSL3.PSL3G
Performance level: PR1
Temperature class: K, L, P, S, T, U, V
Model: DN50/65/80/100
