High pressure water needles also calls the grouting mouth, filling mouth

A, the product description

1, high pressure water needles: is by using the principle of extrusion fastening. The head is equipped with one-way valve, can prevent the slurry spray under high pressure push down. Extrusion expansion part with a rubber sleeve, a diameter of 13 mm, into the grouting hole diameter is 14 mm, tighten the ring bolt, compression rubber casing, make the fixed in the grouting hole grouting mouth. Check valve (grouting mouth must be 0. 4 kn above pressure to open, so the grouting pressure must be higher than this value). High pressure water needles at present there are four types: copper, plastic, aluminum, steel mouth mouth mouth mouth, the first three ring pressure type. Divided into before check water type, namely filling nozzle inlet non-return valve in the inlet; After check water type, namely the inlet non-return valve in the exit of visual details. After good mouth type water stop before embedding, front end can be twisted off pressure drainage, to screw up again when grouting; Check water type buried after good mouth, can't drainage pressure, but can be dismantled grouting mouth for the completion of the engineering construction of next working procedure. Rubber seal part of the common grouting mouth diameter of 14 mm, 14 mm drill bit to match. Choose the length of the structure of compact type for 7 ~ 8 cm grouting mouth; The loose structure, can choose grouting mouth 10 ~ 15 cm in length.

Second, the accessories

1, rubber mat: butter head rubber, rubber with special rubber material impact (high voltage), under the high pressure squashed deformation of rubber head from damage caused by drug outflows.

Note:

2, butter head (excluding the traditional consumption of man-hour) spiral fashion, compressive strength can reach more than 10000 psi, working hours, four claw type fast connection province pharmaceutical extrusion pressure rubber rapid dilation, four claw will closely inclusion attachment grease nipple, rubber with special rubber material impact (high voltage), under the high pressure squashed deformation of rubber head from damage caused by drug outflows.

3, butter head rubber because in the process of construction, high pressure and corrosion of chemical grouting material, easy to damage. So in the process of construction, found damage, should change in time, otherwise cause slurry.

4, at the end of the construction, as a result of the cleaning machine for cleaning agents, corrosion for butter head rubber, cause the butter head rubber easily damaged, so the next time the construction, should be replaced in a timely manner.

Three, before the construction steps

1, look for cracks: for moisture at the grass-roots level, water cleaning, the first stay at the grass-roots level, surface slightly when all is clean, carefully looking for cracks, coloring pencil or chalk well marked along the fissures; Base for dry, clean up after use air pump or blower, in addition to the surface dust.

2, drilling: according to the thickness of the concrete structure, cracks in the bottom left or right 5 cm to 10 cm deep inclined drilling to half the thickness of the structure, step by step from low to high drill, drill to the top again after embedding water needle, due to the general structure crack belongs to irregular state, therefore, special attention should be paid to locate the cross hole on both sides have to follow the direction of crack. Pitch should be according to the actual situation and decide, with two hole grouting cracks in cement grout intersection for the principle, general at first pitch should be 25 cm ~ 30 cm; The size of the aperture, should according to form a complete set of water stop needle size, use as a mark of 13 mm drill bit. Pore and fracture cross section should be into 30 ~ 50 degrees, and cross the floor in the middle of a third range.

3 needles, buried check water: water needles to form a complete set of components, is the fittings slurry into a crack, embedded application tool clamp, and to ensure that the rubber part and the needle hole wall dry before using, otherwise easy to cause skid when fastening.

4, water seepage/reinforcing borehole, lock the needle, factories pour material inside the cup, start the power switch, the cup and residual cleaner or lubricant extrusion tube, until the potion overflowing, insert the needles, inject drugs in wall body, check leakage, reinforcing.

Four, product specifications

1 B - 08 hexagonal water needles: length; 8 cm, use the drill bit; 10 m/m, apply; The basement and roof.

2. A - 08 hexagonal check water needles: length; 8 cm, use the drill bit; Apply to 13 m/m; The basement and roof.

3. A - 10 hexagonal check water needles: length; 10 centimeters, use the drill bit; Apply to 13 m/m: concrete check leakage.

4. A - 15 hexagonal check water needles: length; 15 cm, the use of bit; Apply to 13 m/m: thick concrete seepage.

5. A - 20 hexagonal water needles: length; 20 cm, use bit; 13 m/m, it is suitable for continuous wall, beam column.

6. A - 25 hexagonal water needles: length; 25 cm, use the drill bit; 13 m/m, it is suitable for continuous wall, beam column.

7. A - 30 hexagonal water needles: length; 30 cm, use the drill bit; 13 m/m, it is suitable for continuous wall, beam column.

8. A - 90 hexagonal water needles: length; 90 cm, use the drill bit; Apply to 13 m/m: deep in mud, check leakage.

9. A - 20 hexagonal double liquid water needles: length; 20 cm, use bit; 13 m/m, applies: stop leakage, reinforcement.

10. A - 30 hexagonal double liquid water needles: length; 20 cm, use bit; 13 m/m, applies: stop leakage, reinforcement.

Five, the scope of use:

1. The subway, tunnel, culvert, sewage treatment ponds, concrete crack seepage, water plugging.

2. Basements, underground garage, underground passage, concrete crack seepage, water plugging.

3. The roof concrete slab crack, wall tube, the corner, seepage, water plugging.

4. The concrete structure, the structure of the beam, column, slab crack, high pressure injection epoxy resin.

5. Two seams, cracks, such as top sitting ooze water seepage, beams, walls.