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                      Bolaite rubber products
                      ADD : Wencheng Industrial Zone, Jingxian County, Hebei Province
                      WEB :
                      E-Mail : hebeibolaite@163.com
                                  157882969@qq.com
                      High pressure rubber hose/Company
                      Current location 锛?HOME


                      High pressure oil pipes are mainly divided into high-pressure steel wire braided hose and high-pressure steel wire wound hose according to the production process.
                      Steel wire braided hose
                      The structure of high-pressure steel wire braided hose mainly consists of a liquid resistant synthetic rubber inner layer, a middle layer, layers I, II, and III of steel wire braided layers, and a weather resistant synthetic rubber outer layer.
                      But according to the design principle of high-pressure hose, the third layer braided hose does not have any effect when the hose is under pressure, wasting materials, increasing the weight of the hose itself, and reducing the flexibility of the hose. So, there is no standard for this type of hose in the standards of various countries. Some senior engineers in enterprises still use the old standards of the past, so some people still choose this model when designing.
                      Application of high-pressure steel wire braided hose: High pressure steel wire reinforced hydraulic oil pipes are mainly used for mine hydraulic supports and oilfield development, suitable for engineering construction, lifting and transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various machine tools, and various industrial departments in mechanization and automation hydraulic systems to transport petroleum based liquids (such as mineral oil, soluble oil, hydraulic oil, fuel oil, lubricating oil) and water-based liquids (such as emulsions, oil-water emulsions, water) with certain pressure and temperature, as well as liquid transmission.
                      Working temperature of high pressure steel wire braided hose: oil -40 ℃~100 ℃, air -30 ℃~50 ℃, water lotion+80 ℃ below.
                      Specification range of high-pressure steel wire braided hose: DN5mm~DN102mm.

                      Technical parameters of single-layer steel wire braided hose (GB/T3683-2011)

                      specifications

                      internal diameter
                      mm

                      Wire layer diameter
                      mm

                      external diameter
                      mm

                      working pressure

                      Test pressure

                      Burst pressure

                      Bending radius
                      mm

                      		Reference weight
                      Mpa Psi Mpa Psi Mpa Psi
                      1-5-21 5±0.5　　　 9.5±0.6 14±0.8 21 3043 31.5 4564 63 9129 90 0.25
                      1-6-20 6±.0.5 11.7±0.6
                      16 +1.0
                      -0.8
                      		20 2898 30 4347 60 8694 100 0.34
                      1-8-17.5 8±0.5 13.7±0.6
                      18 +1.0
                      -0.8
                      		17.5 2536 26.25 3804 52.5 7607 115 0.41
                      1-10-16 10±0.5 15.7±0.6
                      20 +1.0
                      -0.8
                      		16 2318 24 3478 48 6955 130 0.47
                      1-13-14 13±0.5 19.7±0.6
                      24 +1.2
                      -0.8
                      		14 2028 21 3043 42 6086 180 0.67
                      1-16-12 16±0.5 22.7±0.8
                      27 +1.2
                      -1.0
                      		12 1739 18 2608 36 5216 205 0.70
                      1-19-10 19±0.5 25.7±0.8
                      30 +1.2
                      -1.0
                      		10 1449 15 2174 30 4347 240 0.84
                      1-22-9 22±0.5 28.7±0.8
                      33 +1.2
                      -1.0
                      		9 1304 13.5 1956 27 3912 280 0.95
                      1-25-8 25±0.5 32.2±0.8
                      37 +1.2
                      -1.0
                      		8 1159 12 1739 24 3478 300 1.09
                      1-32-6 32±0.5 39.2±0.8

                      44

                      		+1.5
                      -1.2
                      		6 869 9 1304 18 2608 420 1.38
                      1-38-5 38±0.7 45.2±0.8
                      50 +1.5
                      -1.2
                      		5 725 7.5 1087 15 2174 500 1.80
                      1-51-4 51±1.0 58.2±0.8
                      63 +1.5
                      -1.2
                      		4 579 6 8694 12 1739 630 2.80
                      1-64-3 64±1.0 71±0.8
                      77 +1.5
                      -1.2
                      		2.5 362 3.75 543 7.5 1087 770 4.00
                      1-76-2 76±1.0 84±0.8
                      90 +1.5
                      -1.2
                      		1.5 217 2.25 326 4.5 652 930 5.50
                      1-89-1 89±1.0 97±0.8
                      104 +1.5
                      -1.0
                      		1 144.9 1.5 217 3 435 1100 7.60
                      1-102-1 102±1.0 111±0.8
                      116 +1.5
                      -1.0
                      		0.8 116 1.2 174 2.4 348 1250 9.00

                      Technical parameters of double-layer steel wire braided hose (GB/T3683-2011)

                      specifications

                      internal diameter
                      mm

                      Wire layer diameter
                      mm

                      external diameter
                      mm

                      working pressure

                      Test pressure

                      Burst pressure

                      Bending radius
                      mm

                      		Reference weight
                      Mpa Psi Mpa psi Mpa Psi
                      2-5-60 5±0.5　　　 11.2±0.6 15±0.8 60 8694 90 13041 150 21735 90 0.40
                      2-6-60 6±0.5　　　 13.5±0.6
                      18 +1.0
                      -0.8
                      		60 8694 90 13041 150 21735 100 0.45
                      2-8-50 8±0.5　　 15.5±0.6
                      20 +1.0
                      -0.8
                      		50 7245 75 10868 125 18113 115 0.62
                      2-10-40 10±0.5 17.5±0.6
                      22 +1.0
                      -0.8
                      		40 5796 60 8694 100 14490 130 0.71
                      2-10-53 9.7±0.5 16.5±0.6 21.4±0.8 53 7680 79.5 11520 132 19127 130 0.71
                      2-13-30 13±0.5 21.5±0.8
                      26 +1.2
                      -1.0
                      		30 4347 45 6521 90 13041 180 0.93
                      2-16-21 16±0.5 24.5±0.8
                      29 +1.2
                      -1.0
                      		21 3043 31.5 4564 63 9129 205 1.00
                      2-16-34 16±0.5 24.5±0.8
                      29 +1.2
                      -1.0
                      		34 4926 51 7390 85 12317 205 1.00
                      2-19-18 19±0.5 27.5±0.8
                      32 +1.2
                      -1.0
                      		18 2608 27 3912 54 7825 240 1.23
                      2-19-34 19±0.5 27.5±0.8
                      32 +1.2
                      -1.0
                      		34 4926 51 7390 85 12317 240 1.23
                      2-22-16 22±0.5 30.5±0.8
                      35 +1.2
                      -1.0
                      		16 2318 24 3478 48 6955 280 1.38
                      2-25-21 25±0.5 34±0.8
                      39 +1.2
                      -1.0
                      		14 2029 21 3043 42 6080 300 1.54
                      2-32-11 32±0.5 41±0.8
                      46 +1.5
                      -1.2
                      		11 1594 16.5 2391 33 4782 420 1.82
                      2-38-11 38±0.7 47±0.8
                      52 +1.5
                      -1.2
                      		10 1449 15 2174 30 4347 500 2.44
                      2-51-10 51±1 60±0.8
                      65 +1.5
                      -1.2
                      		8 1159 12 1789 24 3478 630 3.18
                      2-64-5 64±1 74±1 79±1.5 5 725 7.5 1087 15 2174 790 3.74
                      2-76-4 76±1 86±1 92±1.5 4 580 6 895 12 1789 920 4.77
                      2-89-3 89±1 99±1 106±1.5 3.5 507 5.25 761 10.5 1521 1060 5.73
                      2-102-4 102±1 112±1 118±1.5 3 435 4.5 652 9 1304 1200 6.16
                      2-127-2 127±1 137±1 143±1.5 2 290 3 448 6 869 1450 7.32

                      Technical parameters of three-layer steel wire braided hose (GB/T3683-2011)

                      specifications

                      internal diameter
                      mm

                      Wire layer diameter
                      mm

                      external diameter
                      mm

                      working pressure

                      Test pressure

                      Burst pressure

                      Bending radius
                      mm

                      		Reference weight
                      Mpa Psi Mpa psi Mpa Psi
                      3-5-72 5±0.5 13.2±0.6 17±0.8 72 10433 108 15649 180 26082 120 0.50
                      3-6-68 6±0.5 15.0±0.6 19±1.0 68 9853 102 14780 170 24633 140 0.56
                      3-8-54 8±0.5 17.5±0.6 22±1.0 54 7825 81 11737 120 17388 160 0.83
                      3-10-44 10±0.5 19.5±0.6 24±1.0 44 6376 66 9563 110 15939 180 0.95
                      3-13-36 13±0.5 23.5±0.8 28±1.2 32 4637 48 6955 96 13910 240 1.22
                      3-16-32 16±0.5 26.5±0.8 31±1.2 23 3333 34.5 4999 69 9998 300 1.30
                      3-19-28 19±0.5 29.5±0.8 34±1.2 20 2898 30 4347 60 8694 330 1.62
                      3-22-26 22±0.5 32.5±0.8 31±1.2 18 2608 27 3912 54 7825 380 1.81
                      3-25-24 25±0.5 36.0±0.8 41±1.0 16 2318 24 3478 48 6955 400 1.99
                      3-32-13 32±0.5 43.0±0.8 48±1.2 13 1884 19.5 2826 39 5651 450 2.46
                      3-38-12 38±0.7 49.0±0.8 54±1.5 12 1789 18 2608 36 5216 500 3.08
                      3-51-10 51±1 62.0±0.8 67±1.5 10 1449 15 2174 30 4347 630 3.96
                      3-64-6 64±1 75.0±0.8 80±1.5 6 895 9 1304 18 2608 790 4.72
                      3-76-5 76±1 88.0±0.8 92±1.5 5 725 7.5 1087 15 2174 960 5.69
                      3-89-4 89±1 101.0±0.8 107±1.5 4 580 6 895 12 1789 1100 6.8
                      3-102-5 102±1 114.0±0.8 120±1.5 3.5 507 5.25 761 10.5 1521 1280 7.34
                      3-127-3 127±1 139±1 145±1.5 3 435 4.5 652 9 1304 1560 8.45


                      Steel wire wrapped rubber hose
                      The structure of high-pressure steel wire wound hose mainly consists of an inner rubber layer, a middle rubber layer, a four or multi-layer alternating steel wire reinforcement layer, and an outer rubber layer.
                      The inner adhesive layer has the function of subjecting the conveying medium to pressure and protecting the steel wire from erosion, while the outer adhesive layer protects the steel wire from damage（ ф The 0.3-2.0 reinforcement layer serves as a reinforcing layer for the skeleton material.
                      High pressure steel wire wound oil pipe (high-pressure oil pipe) Application: High pressure steel wire reinforced hydraulic oil pipe is mainly used for mine hydraulic supports and oilfield development, suitable for engineering construction, lifting and transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various machine tools, and various industrial sectors in mechanized and automated hydraulic systems to transport petroleum based (such as mineral oil, soluble oil, hydraulic oil, fuel, lubricating oil) and water-based liquids (such as emulsions, oil-water emulsions, water) with a maximum working pressure resistance of 70-120Mpa.
                      Working temperature of high-pressure steel wire wound oil pipe (high-pressure oil pipe): -40 ℃~120 ℃
                      Product specification range: DN6mm~DN305mm.
                      Type: 4SP type - medium pressure hose wrapped with four layers of steel wire.
                      4SH type - high-pressure hose wrapped with four layers of steel wire.
                      R12 type - High temperature and medium pressure oil pipe wrapped with four layers of steel wire under harsh conditions.
                      R13 type - High temperature and high pressure oil pipe with multi-layer steel wire winding under harsh conditions.
                      R15 type - High temperature and ultra-high pressure oil pipe with multi-layer steel wire winding under harsh conditions.

                      High pressure steel wire wrapped rubber hose (GB/T10544-2003)

                      specifications internal diameter
                      mm                       		Wire layer diameter
                      mm                       		external diameter
                      mm                       		working pressure Burst pressure Bending radius
                      mm                       		Reference weight
                      Kg/m
                      MPA Psi MPa Psi
                      4sp-6-100 6±0.5 14.4±0.8 19±1.0 100 14490 210 30492 130 0.65
                      4sp-8-80 8±0.5 16.4±0.8 20.5±1.0 80 11592 210 30492 145 0.85
                      4sp-10-70 10±0.5 19.2±0.8 24±1.0 70 10143 210 30492 160 1.03
                      4sp-13-60 13±0.5 22.2±0.8 27±1.0 60 8694 180 26082 410 1.21
                      4sp-16-55 16±0.5 26±0.8 30±1.0 55 7970 165 23909 260 1.72
                      4sp-19-46 19±0.5 30±0.8 35±1.5 46 6665 140 20286 280 2.08
                      2sp-19-32 19±0.5 27±0.8 31±1.0 28 4057 84 12172 280 1.32
                      4sp-22-40 22±0.8 33±0.8 37±1.5 40 5796 120 17388 320 2.39
                      4sp-25-40 25±0.8 36±0.8 41±1.5 35 5072 112 16229 360 2.51
                      2sp-25-21 25±0.8 33±0.8 38±1.5 21 3043 64 9274 360 1.64
                      4sp-32-35 32±0.8 44±0.8 49±1.5 32 4667 96 13910 460 3.12
                      2sp-32-20 32±0.8 41±0.8 46±1.5 20 2898 60 8694 460 2.14
                      4sp-38-35 38±1.0 50.8±1 56±1.5 25 3623 75 10868 560 4.31
                      4sp-45-35 45±1.0 57.8±1 61.8±1.5 23 3333 69 9998 650 4.87
                      4sp-51-35 51±1.0 63.8±1 69±1.5 20 2898 60 8694 720 5.40
                      2sp-51-15 51±1.0 60.8±1 65±1.5 14 2039 52 7535 720 3.42

                      Ultra high pressure steel wire wrapped hose (GB/T10544-2003)

                      specifications internal diameter
                      mm                       		Wire layer diameter
                      mm                       		external diameter
                      mm                       		working pressure Test pressure Burst pressure Bending radius
                      mm                       		Reference weight
                      Kg/m
                      MPA Psi Mpa Psi MPa Psi
                      6sp-6-110 6±0.5 16.6±0.8 20.6±1.0 110 15939 115.5 16736 231 33472 180 0.95
                      6sp-10-77 10±0.5 21.8±0.8 25.8±1.0 77 11157 85.5 12389 231 33472 210 1.48
                      6sp-13-66 13±0.5 24.8±0.8 28.8±1.0 66 9563 72 10433 198 28690 260 1.75
                      6sp-16-65 16±0.5 29.0±0.8 33.0±1.0 61 8839 66 9563 183 26517 310 2.02
                      6sp-19-60 19±0.5 33.0±0.8 37.0±1.5 51 7390 58.5 8477 156 22604 350 2.49
                      6sp-25-50 25±0.8 39.0±0.8 44.0±1.5 39 5651 46.5 6738 124 17968 430 2.82
                      6sp-32-45 32±0.8 47.0±0.8 50.4±1.5 35 5072 34.5 4999 105 15215 530 3.79
                      6sp-38-45 38±1.0 54.2±1.0 57.6±1.5 28 4057 28.5 4130 84 12172 660 5.76
                      6sp-51-45 51±1.0 67.2±1.0 70.6±1.5 22 3188 28.5 4130 76 11012 820 7.13


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                      WEB:    E_mail:hebeibolaite@163.com    ADD:Wen Cheng Industrial Zone, Jing County, Hebei Province