☷ Description
It can also be applied in coal mining operations, including hydraulic mining, rapid hole sealing and water plugging, water injection, measurement of gas emission rate and concentration, prediction of working face parameters, and prevention of gas disasters，it is suitable for multiple processes such as grouting, pressure testing, and sealing.
☷ Technical Parameters
a. Hole Sealing Diameter: 35-500mm (Custom manufacturing required for diameters >200mm)
b. Sealing Pressure Range: 1-8MPa (Customizable per client requirements)
c. Working Flow Rate: 3-4.5 tons of grout per hour
d. Maximum Sealing Depth: 1-150m
|
Outside diameter (mm) |
self-expanding diameter(mm) |
Applicable aperture(mm) |
Working pressure on free State≤(Mpa) |
Pressure-resistance strength of working state(Mpa) |
|
|
Test pressure |
Burst pressure |
||||
|
30±2 |
50+8-4 |
35 |
8 |
20 |
25 |
|
34±2 |
55+8-4 |
40 |
6 |
20 |
25 |
|
38±2 |
65+8-4 |
50 |
6 |
15 |
25 |
|
43±2 |
70+8-4 |
55 |
6 |
15 |
25 |
|
50±2 |
90+8-4 |
60 |
6 |
12 |
24 |
|
55±2 |
95+8-4 |
65 |
5 |
10 |
20 |
|
63±2 |
100+8-4 |
75 |
4 |
8 |
16 |
|
69±2 |
100+8-4 |
75 |
16 |
24 |
32 |
|
69±2 |
110+8-4 |
90 |
4 |
8 |
16 |
|
75±2 |
110+8-4 |
90 |
16 |
24 |
32 |
|
84±2 |
120+8-4 |
100 |
3 |
6 |
12 |
|
90±2 |
120+8-4 |
100 |
8 |
12 |
16 |
|
94±2 |
130+8-4 |
110 |
3 |
6 |
12 |
|
99±2 |
130+8-5 |
110 |
8 |
12 |
16 |
|
109±2 |
140+8-5 |
130 |
3 |
6 |
12 |
|
122±2 |
160+8-5 |
150 |
3 |
6 |
12 |
