Application

Applicable to coal mine hydraulic support, integrated coal cutter and other hydraulic systems for transporting mineral oil, water-based hydraulic oil or water       

Standard

MT/T98-2006

Internal lining 

Synthetic rubber resistant to oil and aging  

Enhancement layer

Enhancement layer twined by multiple layers of steel wire

External lining 

Synthetic rubber resistant to high temperatures, ozone and weather

Color

Black 

Minimum temperature

- 40 ℃

Maximum temperature 

+ 100 ℃

Medium

Mineral oil, polyethylene glycol-based hydraulic oil, water (0°C + 70°C), oil-water emulsion  

DN

Inches

I .D (mm)

O.D(mm)

Max.W.P

Min. B.P

Min. B.R

Min

Max

Max

(Mpa)

(Mpa)

(mm)

10

3/8-4

9.7

10.5

24.0

70

210

180

13

1/2-4

12.7

13.5

27.5

57

172

210

16

5/8-4

15.7

16.6

31.0

53

160

260

19

3/4-4

18.7

19.8

35.5

46

140

280

22

7/8-4

21.7

22.8

39.5

41

124

320

25

1-4

24.7

25.8

42.5

35

112

360

32

1 1/4-4

31.6

32.6

50.5

32

84

460

38

1 1/2-4

37.7

38.8

57.5

25

75

560

45

1 3/4-4

44.7

45.8

64.5

21

64

640

51

2-4

50.5

52.0

70.5

21

64

720

10

3/8-6

9.7

10.5

26.0

80

240

180

13

1/2-6

12.7

13.5

30.5

72

216

210

16

5/8-6

15.7

16.6

34.5

70

204

260

19

3/4-6

18.7

19.8

38.5

60

180

280

22

7/8-6

21.7

22.8

42.5

53

160

320

25

1-6

24.7

25.8

45.5

50

152

360

32

1 1/4-6

31.6

32.6

53.5

41

124

460

38

1 1/2-6

37.7

38.8

60.5

36

108

560

45

1 3/4-6

44.7

45.8

67.5

32

96

640

51

2-6

50.5

52.0

74.0

32

96

720