Structure: Sealing rubber expansion consists of high pressure water hose mine sealing device, safety valves, quick connector components. Fourth, note: 1, sent plug sealing device and recycling storage hole is prohibited under pressure operation. 2, when the sealing is not allowed to work in front of people jobs. Technical parameters sealing diameter: 30-120mm (according to user demand for processing) Working Pressure: 1-8Mpa (according to user needs processing) starting pressure relief valve: 0.4-0.5Mpa work flow: 4-4.5 tons of water per hour ( Coal injection sealing device, coal injection grouting sealing device) sealing depth: 1M-8M hose expansion coefficient: 60% -100% gas drainage water sealing device, Loudi water sealing device, Bo-Rubber-known Manufacturers by Bo-Rubber Products Co., Ltd. Hengshui. Hengshui Bo-Rubber Products Co., Ltd. (www.jxboguang.com/) strong, credible, Hebei Hengshui transportation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Bo-Rubber and you hand into the brilliant, for a better future!