CONSTRUCTION UNIT CONVERTER · FIELD TOOL
psi = bar × 14.504. A 10 bar pipe test is 145 psi; a 200 bar hydraulic system is 2,901 psi. One bar is 100 kPa, about 10.2 m of water head.
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| kPa | 1,000 |
| MPa | 1 |
| kgf/cm² | 10.1972 |
| Head of water | 101.97 m |
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psi = bar × 14.5038 kPa = bar × 100 m of water ≈ bar × 10.210 bar × 14.5038 = 145.0 psi (1,000 kPa, 1 MPa, 102 m of water).
| bar | psi | Typical use |
|---|---|---|
| 1 | 14.5 | Atmospheric, low-head water |
| 6 | 87.0 | Mains water, compressors |
| 10 | 145.0 | Pipe test (PN10) |
| 16 | 232.1 | PN16 pipes |
| 100 | 1,450 | Concrete pump line |
| 200 | 2,901 | Hydraulic jacks |
| 350 | 5,076 | High-pressure hydraulics |
14.504 psi.
6.89 bar.
About 10.2 m. A water tank 10 m above a tap gives roughly 1 bar of pressure.