Inflatable Grouting Packer for Mining and Tunneling
Selection Factors:
• Borehole diameter and actual wall condition.
• Required differential pressure, grouting pressure and safety margin.
• Central tube inner diameter and required grout flow.
• Single-packer or double/straddle-packer arrangement according to the injection interval.
Product Explanation:
The Bangtian inflatable grouting packer consists of a reinforced rubber bladder and a steel mandrel. After being placed in the borehole, it can be inflated with water or compressed air, locking against the borehole wall and isolating the target section. The long sealing section helps conform to irregular borehole walls and enables controlled injection into a specified zone.
Applications:
• High-pressure grouting in fractured coal seams.
• Gas drainage borehole isolation.
• Underground water control and seepage prevention.
• Pre-grouting before tunnel excavation.
