water use grout plugs series

First, use
1, connecting all piping systems, tighten all threaded, connected to the gas source (or hydraulic pump), the grout plug on the orifice (or closed-end steel pipe) pressure test, check connections for leaks, put hole spare.
2, opening the cylinder valve or hydraulic pump, so gradually filling the expansion plug, attention must be greater than the filling pressure of air pressure to 2/3, to a predetermined pressure to grouting.
3, grouting begins, there is a lot to be back to the pulp slurry benefit out of the mouth, and then fractionated slowly pressurized to a predetermined pressure grouting, or easily form a large pressure differential. Grout should always check the gas cylinder valve pressure gauge, such as the reduction should immediately add fill.
4, filling a long time, you hydraulic flanges must check whether the channeling pulp, around the plug back plasma phenomena, if any, should stop filling, release the pressure, loosen the upper and lower inflatable plugs, inflatable plugs is to prevent the consolidation and difficult to remove.
5, the end of the grout, you must first let go of grouting pressure, inflation pressure and then let go, do not let go of the first inflation pressure to prevent grout plug injection, resulting in accidents.
6, after filling, simply plug into the filling tube closed at one end, the inflatable around 0.5Mpa, rinse cycle can be carried out.
7, grout plug after removing the hose into the plasma tube, respectively, back to the slurry pipe connection rinse.
8, together with the porous grout, all piping must be parallel to the line, and not twist and tangle together, hydraulic couplings to prevent a Fasheng security incidents affecting the other hole.
9, after prolonged use, you should plug the bottom apart for cleaning grout, on the butter.
10, drilling discovered over a longer cracks or broken, it may happen channeling pulp, around the plug, return pulp, shall also put an upper end of the trachea to the grout plug, if channeling pulp, around the plug, return pulp, washed with high-pressure gas discharge, can prevent jams.