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The zone valves are installed in closed circuits in heating systems. With manual override, lockable in centre position.Technical data:- Power consumption: 6 W- Protection class: IP22- Ambient temperature: max. 60°C- Medium temperature: 5°C to 110°C- Operating pressure: max. 10 bar- Differential pressure: max. 0.9 bar- Valve body, cover: brass- Return spring: stainless steel- Cable length: 1 m- Max. differential pressure: 0.9 barHow it works:When the power supply is activated, the servomotor pushes the ball (against the spring force) from A to a centre position in about 10 seconds. When de-energised, the return spring pulls the ball back to A in about 4 seconds.
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