SEIMENS SFA71/18 & SFA21/18

For VVI46.. and VXI46.. zone valves, AC 24 V and AC 230 V versions.

Electromotoric actuators for on/off control of zone. For on/off control of terminal units and heating and cooling zones. The actuators are equipped with a manual lever, spring return facility (NO valve closed) and 1.8 m connecting cable. 1 auxiliary switch is available as an accessory item.

Additional info

For fitting to the valve: Cap nut M30 x 1.5

SEIMENS 2-way Valve model VVI

2-port valves, internally threaded connections, for the control of zones or terminal units. Suitable media: water (to VDI 2035), water with anti-freeze.

SEIMENS 3-way Valve model VXI

3-port valves, internally threaded connections, for the control of zones or terminal units. Suitable media: water (to VDI 2035), water with anti-freeze.

SEIMENS SUA21/3

Electromotive actuator without spring return SUA21/3 for VVI46..and VXI46..zone valves, SUA21/3P for VQI46.. and VQP46.. on/off PICVtive. Primarily used in heating, ventilation and air conditioning systems for water-based control of hot water and cold water.

• Heating and cooling zones

• Control valves for fan coil units

• Zone valve for floor heating via heating distributors (manifolds)

• Chilled ceiling units

• On/off control for domestic hot water boilers

• Shut off valve for wall mounted boiler applications

Additional info

For fitting to the valve: plastic union nut M30 x 1.5

SEIMENS SUE21P

Electromotoric actuator 100 N for combi valves

Additional info

For fitting to the valve: plastic union nut M30 x 1.5