Water stop needle

产地：

江苏

1. Brief description of high-pressure water-stop needle: High-pressure water-stop needle, an accessory of high-pressure perfusion machine: It 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 can only be opened when the pressure is above. Therefore, the grouting pressure must be higher than this value.
2. Classification and Description
There are currently four types of high-pressure water-stop needles: copper Nozzle, aluminum nozzle, steel nozzle, plastic nozzle, the first three are ring pressure type. They are divided into front water stop type, that is, the check valve of the grouting nozzle feed port is located at the inlet, and the rear water stop type, that is, the check valve of the feed port of the grouting nozzle is located at the entrance. The check valve is located at the outlet and can be selected according to the specific situation. After the front water-stop type has buried its mouth, the front end can be unscrewed for pressure relief and drainage. When grouting, it can be screwed up again and the rear water-stop type has its mouth buried. The water is drained and the pressure is released, but the grouting nozzle can be removed after the construction is completed for the next 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 ~c can be used to seal the loose parts. type structure, a grouting nozzle with a length of ~c can be selected.

3. Specifications:

B* B* B* B*

4 , Scope of application:

. Subways, tunnels, culverts, sewage treatment tanks, concrete cracks leaking water, water leakage.
. Basements, underground garages, underground passages, concrete cracks Water leakage, plugging with water.
. Cracks in roof concrete slabs, wall pipes, corners, leaking water, plugging with water.
. Cracks in concrete structures, beams, columns, and plate structures, High pressure injection of epoxy resin.