High pressure water stop needle

High-pressure water-stop needle
A brief description of high-pressure water-stop needle
The high-pressure water-stop needle, an accessory of the high-pressure filling machine, uses the principle of ring pressure fastening. The head is equipped with a one-way stop valve to prevent the slurry from spraying back under high-pressure pushing. The ring pressure expansion part uses a rubber casing with a diameter of 0.0 Å. Plug it into the grouting hole with a diameter of 0.0 Å. Tighten the ring pressure expansion bolt and compress the rubber casing to fix the grouting nozzle in the grouting hole. The one-way valve of the grouting nozzle should be there. It can be opened only with the above pressure, so the grouting pressure must be higher than this value.
Second Classification and Description
There are currently four types of high-pressure water-stop needles: copper mouth, aluminum mouth, steel mouth, and plastic mouth. The first three are ring pressure types. It is divided into front water-stop type, that is, the check valve of the feed port of the grouting nozzle is located at the inlet, and rear water-stop type, that is, the check valve of the feed port is located at the outlet. The choice can be made according to the specific situation. After the front water-stop type has buried the mouth, the front end can be unscrewed for pressure relief and drainage. When grouting, it can be screwed up again. The rear water-stop type has buried the mouth. It will not be able to drain water and relieve pressure. However, the grouting mouth can be removed for the next step after the construction is completed. construction process. The diameter of the rubber sealing part of the commonly used grouting nozzle is , and a drill bit is required. For dense structures, a grouting nozzle with a length of ~ can be selected. For loose structures, a grouting nozzle with a length of ~ can be selected.
Three specifications
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Four application scopes
Subway tunnels, culverts, sewage treatment pools, concrete cracks leaking water, water can be used to plug leaks.
The concrete cracks in the underground passage of the underground garage in the basement are leaking water, and the water is used to plug the leaks.
Water leaks from the corners of the wall pipes due to cracks in the roof concrete slabs, and the water is used to plug the leaks.
Structural cracks in beams, columns and slabs of concrete structures require high-pressure injection of epoxy resin.