MJ ONE is the wet-dial multi-jet meter designed to ensure reliability, readability and consistent performance over time. The protected and sealed roller system prevents the formation of condensation, air bubbles and ice, keeping the reading clear even under the most critical environmental conditions. The mechanical transmission also ensures resistance to external magnetic fields. The new component structure improves robustness, register stability and assembly quality. MJ ONE is pulse-output ready as standard and meets the requirements of utilities and outdoor installations.
• Wet-dial multi-jet meter for cold water
• Protected and sealed roller system against
condensation, air bubbles and freezing
• High readability and long-term stability
• Ideal for utilities and outdoor installations
• MID certified: R max 200
• DN: 15÷50
• Mechanical transmission unaffected by external magnetic fields
• Reinforced cover with secure closure and sensor-ready design
• Pulse-output ready as standard


| Size | mm | 15 | 20 | 25 | ||||
| in | ½ | ¾ | 1 | |||||
| Module B no. | TCM 142/08-4604 | |||||||
| Module D no. | 0119-SJ-A010-08 | |||||||
| Q₃/Q₁ = R Referred to installation position |
H↑ ≤ 200* | |||||||
| MID standard performance * | ||||||||
| Q₃ | m³/h | 2,5 | 4 | 6,3 | ||||
| Q₄ | m³/h | 3,13 | 5 | 7,88 | ||||
| R | 160 | |||||||
| Q₁ | l/h | 15,63 | 25 | 39,38 | ||||
| Q₂ | l/h | 25,01 | 40 | 63,01 | ||||
* Other values of R available upon request.
| Maximum permissible error between Q₁ and Q₂ (excluded) |
+/- 5% | ||||||||
| Maximum permissible error between Q₂ (included) and Q₄ |
+/- 2% with water temperature ≤ 30°C +/- 3% with water temperature > 30°C |
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| Temperature class | T30,T50 | ||||||||
| Flow profile sensitivity classes | U0 – D0 | ||||||||
| Starting flow rate | l/h | 4-5 | 7-9 | 16-18 | |||||
| Head loss | ΔP63 | ||||||||
| Nominal pressure | bar | 16 | |||||||
| Maximum reading | m³ | 99.999 | |||||||
| Minimum reading | l | 0,05 | |||||||
| Indicative weight | kg | 1,45 | 1,61 | 2,3 | |||||
| Size | mm | 32 | 40 | 50 | ||||
| in | 1 ¼ | 1 ½ | 2 | |||||
| Module B no. | TCM 142/08-4604 | |||||||
| Module D no. | 0119-SJ-A010-08 | |||||||
| Q₃/Q₁ = R Referred to installation position |
H↑ ≤ 200 | |||||||
| MID standard performance ** | ||||||||
| Q₃ | m³/h | 10,0 | 16,0 | 25,0 | ||||
| Q₄ | m³/h | 12,50 | 20,0 | 31,25 | ||||
| R | 160 | |||||||
| Q₁ | l/h | 62,50 | 100 | 156,25 | ||||
| Q₂ | l/h | 100 | 160 | 250 | ||||
** Other values of R available upon request.
| Maximum permissible error between Q₁ and Q₂ (excluded) |
+/- 5% | ||||||||
| Maximum permissible error between Q₂ (included) and Q₄ |
+/- 2% with water temperature ≤ 30°C +/- 3% with water temperature > 30°C |
||||||||
| Temperature class | T50 | ||||||||
| Flow profile sensitivity classes | U0 – D0 | ||||||||
| Starting flow rate | l/h | 22-24 | 28-30 | ||||||
| Head loss | ΔP63 | ||||||||
| Nominal pressure | bar | 16 | |||||||
| Maximum reading | m³ | 99.999 | 999.999 | ||||||
| Minimum reading | l | 0,05 | |||||||
| Indicative weight | kg | 2,4 | 7,7 | 7,6 | |||||

| Size | mm | 15 | 20 | 25 | ||||
| in | ½ | ¾ | 1 | |||||
| Thread | in | G ¾ B | G 1 B | G 1 ¼ B | ||||
| L | mm | 110/130/145/165/170/190 | 160/190 | 260 | ||||
| H | mm | 115 | 117 | 125 | ||||
| h | mm | 36,5 | 36,5 | 43 | ||||
| B | mm | 97 | ||||||
| Size | mm | 32 | 40 | 50 | ||||
| in | 1 ¼ | 1 ½ | 2 | |||||
| Thread | in | G 1 ½ B | G 2 B | G 2 ½ B | ||||
| L | mm | 260 | 300 | 270/300 | ||||
| H | mm | 125 | 143 | 175 | ||||
| h | mm | 43 | 46 | 55 | ||||
| B | mm | 97 | 130 | 154 | ||||
