Thermoplastic Hose SAE 100R8 - Medium Pressure Hydraulic Solution from China Suppliers & Factory
I.D
|
O.D
|
MAX W.P.
|
MIN B.P
|
MIN B.R.
|
WEIGHT
|
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| DASH | DN | INCH | MM | INCH | BAR | PSI | BAR | PSI | MM | KG/M |
| -2 | 3 | 1/8" | 9.6 | 0.24 | 420 | 6090 | 1680 | 24360 | 20 | 0.08 |
| -3 | 5 | 3/16" | 12.2 | 0.41 | 362 | 5249 | 1448 | 20996 | 26 | 0.13 |
| -4 | 6 | 1/4" | 16.0 | 0.49 | 362 | 5249 | 1448 | 20996 | 30 | 0.23 |
| -5 | 8 | 5/16" | 16.2 | 0.55 | 290 | 4205 | 1160 | 16820 | 40 | 0.22 |
| -6 | 10 | 3/8" | 18.5 | 0.62 | 280 | 4060 | 1120 | 16240 | 70 | 0.26 |
| -8 | 12 | 1/2" | 22.5 | 0.76 | 245 | 3553 | 980 | 14212 | 90 | 0.36 |
| -10 | 16 | 5/8" | 25.5 | 0.91 | 192 | 2784 | 768 | 11136 | 130 | 0.40 |
| -12 | 19 | 3/4" | 28.8 | 1.04 | 157 | 2277 | 628 | 9108 | 150 | 0.47 |
| -16 | 25 | 1" | 36.0 | 1.31 | 140 | 2030 | 560 | 8120 | 180 | 0.64 |
Frequently Asked Questions
Q:
What is the relationship between the Dash size and the hose Inner Diameter (I.D.)?
The Dash size represents the inner diameter of the hose in sixteenths of an inch. For example, a -4 dash size corresponds to 4/16" (which simplifies to 1/4" or DN6), while a -16 dash size corresponds to 16/16" (which equals 1" or DN25).
Q:
How does the working pressure change as the hose diameter increases?
Generally, as the inner diameter (I.D.) of the hose increases, the maximum working pressure (MAX W.P.) decreases. For instance, the smallest -2 hose (1/8") supports a working pressure of up to 420 BAR (6090 PSI), whereas the larger -16 hose (1") has a maximum working pressure limit of 140 BAR (2030 PSI).
Q:
What safety factor is used between Max Working Pressure and Min Burst Pressure?
This specifications chart utilizes a standard 4:1 safety factor. The Minimum Burst Pressure (MIN B.P.) is precisely four times the Maximum Working Pressure (MAX W.P.) across all sizes to ensure operational safety under pressure spikes.
Q:
Why is the Minimum Bend Radius (MIN B.R.) critical during installation?
The Minimum Bend Radius is the smallest radius to which the hose can be bent without risk of kinking, restricting fluid flow, or damaging the internal reinforcement structure. Bending tighter than the specified limit (e.g., less than 30mm for a -4 hose) will significantly reduce the service life of the hose.
Q:
How does the hose weight scale with the inner diameter?
As the hose dimensions (I.D. and O.D.) increase to accommodate higher flow rates, the material weight per meter also increases. The hose weight ranges from 0.08 KG/M for the -2 size up to 0.64 KG/M for the -16 size.