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| DN | mm | 15 | 20 | 25 | 32 | 40 | 50 | |
| Size | Inch | 1/2″ | 3/4″ | 1″ | 1-1/4″ | 1-1/2″ | 2″ | |
| Q4 Permanen flow | m³/h | 3.125 | 5 | 7.875 | 12.5 | 20 | 31.25 | |
| Q3 Overload flow | m³/h | 2.5 | 4 | 6.3 | 10 | 16 | 25 | |
| R80 Q3/Q1 | Q2 | m³/h | 0.05 | 0.08 | 0.126 | 0.2 | 0.32 | 0.5 |
| Q1 | m³/h | 0.031 | 0.05 | 0.079 | 0.125 | 0.2 | 0.312 | |
| R100 Q3/Q1 | Q2 | m³/h | 0.04 | 0.064 | 0.1 | 0.16 | 0.256 | 0.4 |
| Q1 | m³/h | 0.025 | 0.04 | 0.063 | 0.1 | 0.16 | 0.25 | |
| R125 Q3/Q1 | Q2 | m³/h | 0.032 | 0.051 | 0.081 | 0.128 | 0.2 | 0.32 |
| Q1 | m³/h | 0.02 | 0.032 | 0.05 | 0.08 | 0.128 | 0.2 | |
| Maximum pressure | Bar | 16 | ||||||
| Pressure loss | 0.63（as complete unit） | |||||||
| Maximum working temperature | ℃ | 50 | ||||||
| Maximum reading | m³ | 99999 | ||||||
| Maximum Permissible Error(MPE) | % | Q1≦Q≦Q2: MPE = ± 5% Q2≦Q≦Q4: MPE = ± 2% | ||||||
At Home Connexsions International, We transform dependable solutions with creativity tailored with improvement meant to confirm convenience and creativity to sustainable smart energy solutions.