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Coal Seam Gas Drainage and Sealing Device: hour, and the gas drainage volume depends on the concentration and pressure. · Sealing hole depth : 0.5 m - 3 m. · Hose inflation coefficient : 60% - 100%. · Inflatable area : 24 mm - 160 mm. · Inner ...

Water Injection Hole Packer: hour. · Sealing hole depth: 1 m - 8 m. · Hose inflation coefficient: 60% - 100%. · Inflatable area: 24 mm - 160 mm. · Inner diameter: 10 mm - 102 mm. · Outside diameter: 24 mm - 128 mm. · Test ...

Cement Grouting Packer: hour Hole sealing depth 1-8000m SIZE I.D(mm) O.D(mm) Expansion Range(mm) Aperture(mm) W.P(Mpa) T.P(Mpa) B.P(Mpa) φ16-2 16±0.5 30±1.5 50 +8/-2 40 8 16 32 φ16-4 16±0.5 36±1.5 50 ...

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Coal Seam Gas Drainage and Sealing Device