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Water supply system
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Limits of use
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Recommended limits of operation
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Tapware with normally open or normally closed (monostable) solenoid valves
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Tapware with latching (bistable) solenoid valves
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Tapware with normally open or normally closed (monostable) solenoid valves
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Tapware with latching (bistable) solenoid valves
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| Type 1 (see Figures 1) | Minimum dynamic pressure | 0,05 MPa (0,5 bar) | 0,05 MPa (0,5 bar) |
(0,1 to 0,5) MPa [(1 to 5) bar]
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(0,1 to 0,5) MPa [(1 to 5) bar]
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| Maximum static pressure | 1 MPa (10 bar) | 1 MPa (10 bar) | 1 MPa (10 bar) | 0.8 MPa (8 bar) | |
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Type 2 a (see Figures 2)
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Minimum dynamic pressure | 0,01 MPa (0,1 bar) | 0,01 MPa (0,1 bar) |
(0,01 to 0,2) MPa [(0,1 to 2) bar]
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(0,01 to 0,2) MPa [(0,1 to 2) bar]
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| Maximum static pressure | 1 MPa (10 bar) | 1 MPa (10 bar) | 0.8 MPa (8 bar) | 0.6 MPa (6 bar) | |
| Temperature of the water | ≤ 75 °C | ≤ 75 °C | ≤ 65 °C | ≤ 65 °C | |

| 1 | cold water | 3 | mains supply pipe (Supply pressures from (0,05 to 1,0) MPa ((0,5 - 10) bar) |
| 2 | hot water | 4 | water heater |

| 1 | cold water storage cistern (cover omitted for clarity) |
| 2 | warning pipe |
| 3 | vent pipe |
| 4 | hot water cylinder |
| 5 | alternative cistern fed cold supply to sanitary appliances |
| 6 | to boiler |
| 7 | mains supply pipe (Supply pressures up to 8 bar) |
EN 15091:2013