High-Pressure Hydraulic Rubber Hose DIN EN856 4SP - China Suppliers and Factory for Petroleum Applications
Technical Specifications Reference Table: Below are the detailed dimensions, pressure ratings, bend radius, and weight parameters. Please scroll horizontally to view the complete dataset on mobile devices.
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| I.D | R.O.D. | O.D | MAX W.P. | MIN B.P. | MIN B.R. | WEIGHT | |||||||
| metric | inch | Min | Max | Min | Max | Min | Max | bar | psi | bar | psi | mm | kg/m |
| mm | mm | mm | mm | mm | mm | mm | |||||||
| 10.0 | 3/8 | 9.3 | 10.1 | 16.9 | 18.1 | 20.6 | 22.2 | 445 | 6454 | 1780 | 25816 | 180 | 0.78 |
| 12.0 | 1/2 | 12.3 | 13.5 | 19.4 | 21.0 | 23.8 | 25.4 | 415 | 6019 | 1660 | 24076 | 230 | 0.89 |
| 16.0 | 5/8 | 15.5 | 16.7 | 23.0 | 24.6 | 27.4 | 29.0 | 350 | 5076 | 1400 | 20305 | 250 | 1.11 |
| 19.0 | 3/4 | 18.6 | 19.8 | 27.4 | 29.0 | 31.4 | 33.0 | 350 | 5076 | 1400 | 20305 | 300 | 1.59 |
| 25.0 | 1” | 25.0 | 26.4 | 34.5 | 36.1 | 38.5 | 40.9 | 280 | 4061 | 1120 | 16244 | 340 | 2.02 |
| 31.0 | 11/4 | 31.4 | 33.0 | 45.0 | 47.0 | 49.2 | 52.4 | 210 | 3045 | 840 | 12183 | 460 | 3.32 |
| 38.0 | 1 1/2 | 37.7 | 39.3 | 51.4 | 53.4 | 55.6 | 58.8 | 185 | 2683 | 740 | 10732 | 560 | 3.70 |
| 51.0 | 2 | 50.4 | 52.0 | 64.3 | 66.3 | 68.2 | 71.4 | 165 | 2393 | 660 | 9572 | 660 | 5.47 |
Frequently Asked Questions
QWhat do I.D. and O.D. represent in the technical specifications?
I.D. stands for Inner Diameter, which determines the flow capacity of the fluid inside the hose. O.D. stands for Outer Diameter, which is crucial for selecting the correct external fittings, clamps, and ensuring proper spacing during installation.
QWhat is the meaning of R.O.D. in this specification table?
R.O.D. stands for Reinforcement Outer Diameter. It represents the outer diameter of the structural reinforcement layer (such as steel wire or textile braid) before the final outer rubber cover is applied.
QHow is the Maximum Working Pressure (MAX W.P.) defined?
MAX W.P. is the highest internal pressure at which the hose is designed to operate safely and continuously during its service life. Operating above this pressure may lead to premature wear or sudden failure.
QWhat is the safety factor between MAX W.P. and MIN B.P.?
The Minimum Burst Pressure (MIN B.P.) is the pressure at which the hose is structurally expected to rupture. In this specifications chart, the safety factor is approximately 4:1 (MIN B.P. is four times the MAX W.P.), which aligns with standard high-pressure safety regulations.
QWhy is the Minimum Bend Radius (MIN B.R.) critical for system design?
MIN B.R. is the smallest radius to which the hose can be bent without kinking, restricting internal flow, or damaging the reinforcement layer. Bending the hose tighter than the specified limit will significantly reduce its working life.
QHow does the hose weight correlate with the size specifications?
As the internal diameter (I.D.) and overall outer diameter (O.D.) increase to handle higher volumes and pressures, the weight per meter (kg/m) increases correspondingly. This weight factor is essential for calculating load distributions in suspended installations.