3-way zone valve Termojet 1" with electric actuator, 230V AC, 8s/60°, 5 Nm ABF-ZV3-100

Termojet ABF-ZV3-100 zone 3-way valve — a ready-made unit with built-in electric actuator for zone control of heating, DHW, and ventilation systems. Size 1" (DN25), flow coefficient Kvs 8 м³/год, actuator supply voltage 230V AC, torque 5 Нм, protection degree IP44. Rotation time by 60° — 8 секунд. Body — brass CW617N, closing element PPS, seals EPDM.

Technical Specifications

Operating Principle

When 230V AC voltage is applied, the actuator rotates the disc by 60° in 8 seconds — the coolant flow switches between outlets or opens to the heating zone. When voltage is removed, the actuator returns to the initial position. Two-position control 2P SPST: two states — open or closed. The indicator on the body shows the current disc position. Manual control allows switching the valve without voltage — for commissioning or emergency mode.

Applications

• Zone heating of a private house. 1" (DN25), Kvs 8 — standard size for a zone unit in the boiler room of a 150–200 m² house: independent control of two zones or floors from room thermostats.
• DHW priority. The valve switches the boiler flow to the DHW heating circuit upon hot water demand. After heating — automatically returns to heating.
• Radiators + underfloor heating. Two independent circuits from a single boiler with automatic temperature-based control in each room.
• Ventilation and air conditioning systems. Switching of coolant flow between heating or cooling circuits on a controller signal.
• Systems with heat pump. Priority DHW heating from the heat pump — the ABF-ZV3-100 valve switches the heat pump between the DHW circuit and the heating circuit.

Advantages of Termojet ABF-ZV3-100

• Built-in 230V actuator — ready-to-connect unit without additional servo and bracket.
• Response time 8 s/60° — fast switching between zones.
• IP44 — splash protection, reliable operation in boiler room or technical room conditions.
• Manual control — convenient switching during commissioning and emergency mode.
• Brass body CW617N + PPS element — resistance to elevated temperatures and corrosion.

Valve and Heat Pump

In systems with a heat pump, the ABF-ZV3-100 1" zone valve ensures priority DHW boiler heating: upon hot water demand, the heat pump controller applies voltage to the actuator — the valve switches the entire flow to the boiler circuit. Kvs 8 is sufficient for rapid heating of a standard 100–200 l DHW boiler. After reaching the set temperature, the valve returns to the heating circuit. More details — on the website of Termojet heat pumps.

Frequently Asked Questions

When to choose ABF-ZV3-100 (1") and when ABF-ZV3-114 (1¼")?
ABF-ZV3-100 with Kvs 8 is suitable for standard residential systems up to 150–200 m² and DHW boilers up to 200 l. ABF-ZV3-114 with Kvs 13 — for larger houses, large boilers, or commercial facilities with increased coolant flow.

Is a separate servo drive needed for ABF-ZV3-100?
No. The ABF-ZV3-100 valve is supplied with an already built-in 230V AC actuator — it is a ready-made unit. Connect power from the thermostat or controller and the valve is ready for operation without additional installation operations.