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Use casing specifications: 4 1/2″ 5″ 5 1/2″
Outer diameter of steel body: Φ80mm Φ100mm Φ114mm
Opening pressure: ≥2.5MPa
Closing pressure: ≤1.5MPa
Applicable tubing specifications: 2 3/8″ 2 3/8″, 2 7/8″ 2 7/8″, 3 1/2″
