An engineering pressure unit where 1 meter of water column ≈ 9,806.65 pascals, representing the static pressure exerted by a 1-meter-high water column. Commonly used for pump head ratings (e.g., “head: 30 mH2O”), building plumbing systems, and HVAC water pressure calculations. Widely used in field engineering in China and Europe due to its intuitive correlation with water height.
An engineering pressure unit where 1 meter of water column ≈ 9,806.65 pascals, representing the static pressure exerted by a 1-meter-high water column. Commonly used for pump head ratings (e.g., “head: 30 mH2O”), building plumbing systems, and HVAC water pressure calculations. Widely used in field engineering in China and Europe due to its intuitive correlation with water height.
| meter of water [mH2O] | pound per square inch [psi] |
|---|---|
| 1 mH2O | - |
| 2 mH2O | - |
| 3 mH2O | - |
| 4 mH2O | - |
| 5 mH2O | - |
| 10 mH2O | - |
| 20 mH2O | - |
| 30 mH2O | - |
| meter of water [mH2O] | pound per square inch [psi] |
|---|---|
| 40 mH2O | - |
| 50 mH2O | - |
| 100 mH2O | - |
| 200 mH2O | - |
| 300 mH2O | - |
| 400 mH2O | - |
| 500 mH2O | - |
| 1000 mH2O | - |