SAE100 R4 Suction & Discharge Hose - China Suppliers & Factory for Hydraulic Systems
 I.D
|
 O.D
|
 MAX W.P.
|
 MIN B.P.
|
 MIN B.R.
|
||||
|---|---|---|---|---|---|---|---|---|
| DN | INCH | MM | INCH | BAR | PSI | BAR | PSI | MM |
| 19 | 3/4" | 32.0 | 1.26 | 21 | 305 | 84 | 1218 | 125 |
| 25 | 1" | 37.4 | 1.47 | 17 | 247 | 68 | 986 | 150 |
| 32 | 1 1/4" | 45.0 | 1.77 | 14 | 203 | 56 | 812 | 200 |
| 38 | 1 1/2" | 52.0 | 2.05 | 10 | 145 | 40 | 580 | 255 |
| 45 | 1 3/4" | 58.0 | 2.28 | 10 | 145 | 40 | 580 | 270 |
| 51 | 2" | 64.0 | 2.52 | 7 | 102 | 28 | 406 | 300 |
| 64 | 2 1/2" | 77.0 | 3.03 | 4 | 58 | 16 | 232 | 355 |
| 76 | 3" | 90.0 | 3.54 | 4 | 58 | 16 | 232 | 460 |
| 89 | 3 1/2" | 103.0 | 4.06 | 3 | 44 | 12 | 174 | 590 |
| 102 | 4" | 116.0 | 4.57 | 2 | 29 | 8 | 116 | 610 |
Frequently Asked Questions
Q: What do the abbreviations I.D., O.D., W.P., B.P., and B.R. stand for?
They stand for Inside Diameter (I.D.), Outside Diameter (O.D.), Working Pressure (W.P.), Burst Pressure (B.P.), and Bend Radius (B.R.) respectively.
Q: What is the working pressure limit for a 2-inch (DN 51) industrial hose?
A 2-inch (DN 51) industrial hose has a Maximum Working Pressure (MAX W.P.) of 7 BAR, which is equivalent to approximately 102 PSI.
Q: How does the hose diameter affect its maximum working pressure?
Generally, as the Inside Diameter (I.D.) of the hose increases, the maximum working pressure decreases. For example, a 3/4" hose handles up to 21 BAR (305 PSI), whereas a larger 4" hose handles up to 2 BAR (29 PSI).
Q: What safety ratio is used between the Working Pressure and the Burst Pressure?
The specifications indicate a 4:1 safety factor. The Minimum Burst Pressure (MIN B.P.) is consistently four times higher than the Maximum Working Pressure (MAX W.P.) across all listed sizes.
Q: What is the minimum bend radius (MIN B.R.) for a 1-inch (DN 25) hose?
The minimum bend radius (MIN B.R.) required for a 1-inch (DN 25) hose is 150 mm. Bending the hose below this radius may cause damage or structural failure.