Description
Caleffi 3-way zone valve with 3/4 by-pass tee cod. 678050
Zone valves are used to control the heat transfer fluid in air conditioning systems.
Coupled with an electrothermal control and placed under the management of a room thermostat, they allow automatic interception of the part of the hydraulic circuit in which they are inserted.
They are characterized by limited flow coefficient values, so they are typically installed to control small areas or directly on the terminals.
- Three-way zone valve with by-pass tee.
- Prepared for 6563, 6561, 6562 and 6564 series electrothermal controls.
- Distance between attachments adjustable between 49 and 63 mm.
- Tee complete with U6 nozzle.
- Connection: G 3/4" A (ISO 228-1) M.
- Maximum operating pressure: 10 bar.
- Fluid temperature range: 0–95°C.
- △p max.: 1.2 bar.
- Kv straight: 3.7 m³/h.
- Kv by-pass: 1.0 m³/h.
Data sheet
Drawings
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