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产品展示

Water-injected rubber hole packer

1. Structure: water-injected rubber hole packer is comprised by the inner rubber layer, enhancement layer, medium rubber layer and the outer rubber layer. 

2. Characteristics: there is a contraction in length of the hose body and an expansion in its diameter when the water-injected rubber hole is under the internal positive pressure, and the hole sealing function is thus achieved.

3. Application: a. used for coal mining and dust elimination in coal mines; b. used for underground leak-proof works in engineering construction; c. used for tunnel mining, underground and underwater casting. 


软管
规格

内径
mm

外径
mm

适用
孔径

膨胀
范围

自由状态工作压力(MPa)≥

工作状态下耐压强度(MPa)

试验压力≥

爆破压力≥

ZF-A22

22±0.5

39±2

50

80+8-4

6

14.7

29.4

ZF-B22

22±0.5

39±2

50

60+8-2

6

14.7

29.4

ZF-A32

32±0.5

48±2

56

90+8-4

6

14.7

29.4

ZF-B32

32±0.5

48±2

56

70+8-2

6

14.7

29.4

ZF-A38

38±0.8

54±2

65

75+8-4

4

12

16

ZF-B38

38±0.8

54±2

65

75+8-3

4

12

16

ZF-A45

45±0.8

60±2

75

100+8-4

4

12

16

ZF-B45

45±0.8

60±2

75

80+8-3

4

12

16

ZF-A51

51±1

69±2

91

110+8-4

4

12

16

ZF-B51

51±1

69±2

91

90+8-3

4

12

16

ZF-A64

64±1

80±2

110

120+8-4

4

12

16

ZF-B64

64±1

80±2

110

100+8-3

4

12

16

ZF-A76

76±1

94±2

130

130+8-4

2

6

12

ZF-B76

76±1

94±2

130

120+8-2

2

6

12

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