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LK 840 ThermoMix C is a motorized 3-way valve that can be used as a mixing valve or as a diverting valve in heating systems.
LK 840 ThermoMix® C
LK 840 C - Female Thread 1 artikel
Article | Dim. | Kvs m³/h | A mm | B mm | C mm | D mm | E mm | F mm | Weight (kg) | Dimensional sketch | Item List |
---|---|---|---|---|---|---|---|---|---|---|---|
181855 | F ½" | 0,6 | 80 | 40 | 64 | 20 | 27 | 71 | 0.7 |
|
181855
Dim. | F ½" |
Kvs m³/h | 0,6 |
A mm | 80 |
B mm | 40 |
C mm | 64 |
D mm | 20 |
E mm | 27 |
F mm | 71 |
Weight (kg) | 0.7 |
Dimensional sketch | |
Item list |
|
Other dimensions on request.
Article 181855
A mm | 80 |
B mm | 40 |
C mm | 64 |
D mm | 20 |
E mm | 27 |
F mm | 71 |
Article 181856
A mm | 80 |
B mm | 40 |
C mm | 64 |
D mm | 20 |
E mm | 27 |
F mm | 71 |
Article 181859
A mm | 80 |
B mm | 40 |
C mm | 64 |
D mm | 20 |
E mm | 27 |
F mm | 71 |
LK 840 C - Male Thread 1 artikel
Article | Dim. | Kvs m³/h | A mm | B mm | C mm | D mm | E mm | F mm | Weight (kg) | Dimensional sketch | Item List |
---|---|---|---|---|---|---|---|---|---|---|---|
181868 | M 1" | 6,3 | 80 | 40 | 64 | 20 | 27 | 71 | 0.7 |
|
181868
Dim. | M 1" |
Kvs m³/h | 6,3 |
A mm | 80 |
B mm | 40 |
C mm | 64 |
D mm | 20 |
E mm | 27 |
F mm | 71 |
Weight (kg) | 0.7 |
Dimensional sketch | |
Item list |
|
Other dimensions on request.
Article 181866
A mm | 80 |
B mm | 40 |
C mm | 64 |
D mm | 20 |
E mm | 27 |
F mm | 71 |
Article 181868
A mm | 80 |
B mm | 40 |
C mm | 64 |
D mm | 20 |
E mm | 27 |
F mm | 71 |
LK 840 C - Compression fitting 3 variants
Article | Dim. | Kvs m³/h | A mm | B mm | C mm | D mm | E mm | F mm | Weight (kg) | Dimensional sketch | Item List |
---|---|---|---|---|---|---|---|---|---|---|---|
181873 | 15 mm | 2,5 | 114 | 57 | 81 | 20 | 27 | 71 | 0.8 |
|
|
181874 | 18 mm | 2,5 | 114 | 57 | 81 | 20 | 27 | 71 | 0.8 |
|
|
181875 | 22 mm | 2,5 | 114 | 57 | 81 | 20 | 27 | 71 | 0.8 |
|
181873
Dim. | 15 mm |
Kvs m³/h | 2,5 |
A mm | 114 |
B mm | 57 |
C mm | 81 |
D mm | 20 |
E mm | 27 |
F mm | 71 |
Weight (kg) | 0.8 |
Dimensional sketch | |
Item list |
|
181874
Dim. | 18 mm |
Kvs m³/h | 2,5 |
A mm | 114 |
B mm | 57 |
C mm | 81 |
D mm | 20 |
E mm | 27 |
F mm | 71 |
Weight (kg) | 0.8 |
Dimensional sketch | |
Item list |
|
181875
Dim. | 22 mm |
Kvs m³/h | 2,5 |
A mm | 114 |
B mm | 57 |
C mm | 81 |
D mm | 20 |
E mm | 27 |
F mm | 71 |
Weight (kg) | 0.8 |
Dimensional sketch | |
Item list |
|
Article 181873
A mm | 114 |
B mm | 57 |
C mm | 81 |
D mm | 20 |
E mm | 27 |
F mm | 71 |
Article 181874
A mm | 114 |
B mm | 57 |
C mm | 81 |
D mm | 20 |
E mm | 27 |
F mm | 71 |
Article 181875
A mm | 114 |
B mm | 57 |
C mm | 81 |
D mm | 20 |
E mm | 27 |
F mm | 71 |
LK 940 C 2 variants
Article | Connection | Voltage | Torque | Operation time | A mm | B mm | C mm | D mm | E mm | Weight (kg) | Dimensional sketch | Item List |
---|---|---|---|---|---|---|---|---|---|---|---|---|
066127 | 1 m cable | 230 V | 5 Nm | 110 s* | 109 | 58 | 45 | 73 | 85 | 0.4 |
|
|
066128 | 1 m cable 0-10 VDC | 24 VAC | 5 Nm | 110 s* | 109 | 58 | 45 | 73 | 85 | 0.4 |
|
066127
Connection | 1 m cable |
Voltage | 230 V |
Torque | 5 Nm |
Operation time | 110 s* |
A mm | 109 |
B mm | 58 |
C mm | 45 |
D mm | 73 |
E mm | 85 |
Weight (kg) | 0.4 |
Dimensional sketch | |
Item list |
|
066128
Connection | 1 m cable 0-10 VDC |
Voltage | 24 VAC |
Torque | 5 Nm |
Operation time | 110 s* |
A mm | 109 |
B mm | 58 |
C mm | 45 |
D mm | 73 |
E mm | 85 |
Weight (kg) | 0.4 |
Dimensional sketch | |
Item list |
|
*Other operation times on request.
Article 066127
A mm | 109 |
B mm | 58 |
C mm | 45 |
D mm | 73 |
E mm | 85 |
Article 066128
A mm | 109 |
B mm | 58 |
C mm | 45 |
D mm | 73 |
E mm | 85 |
Description
LK 840 ThermoMix C is a motorized 3-way valve that can be used as a mixing valve or as a diverting valve in heating systems.
Actuator LK 940 ThermoMix C shall be used on LK 840 ThermoMix C. Assembly/disassembly of actuator on LK 840 ThermoMix C is simple and secure, using the clip-system.
Depending on model the actuator can be operated by a controller with a 3-point SPDT output or a proportional
0-10 V / 4-20 mA output. The angle of rotation is electrically limited to 90°.
When needed, the actuator can be put into manual mode by pressing the button on the housing cover. The actuator can now be put in any position by turning the handle on the front. The position is indicated on the reversible scale.
Technical Data
Working temperature: | Min. 5 °C/Max. 110 °C (120 °C briefly) |
Ambient temperature: |
Min. 5 °C/Max. 60 °C (Mixing valve) Min. 0 °C/Max. 50 °C (Actuator) |
Max. working pressure: | 1.0 Mpa (10 bar) |
Max. differential pressure: | 50 kPa (0.5 bar) |
Leakage: | < 1% of Kvs at 50 kPa |
Angle of rotation: |
90°/360° (Mixing valve) 90° (Actuator - electically limited) |
Torque: |
< 1 Nm (Mixing valve)
5 Nm (Actuator) |
Media 1: | Water - Glycol mixture max. 50% Ethanol mixture max. 30% |
Thread standard: | Rp - female thread, G - male thread |
Actuator: |
230 VAC 50 Hz
24 VAC 50 Hz |
Operation time: | 110 s |
Direction of operation: | Selectable |
Position indication: | Reversible scale |
Manual override: | Disengagement of gears |
Electrical connection: | Cable 1 m |
Signal connector: |
3-point SPDT
0 - 10 VDC/4-20 mA |
Protection type: | IP 44 |
Protection class: | II |
Material, valve body: | Brass EN 12165 CW617N |
Material, slide/spindle: | Brass EN 12165 CW617N |
Material, sealing: | EPDM |
Spindle sealing: | Two O-rings |
Application
Wiring Diagram
Technical Diagrams
Valve Characteristics
Capacity Diagram
Technical Data
Working temperature: | Min. 5 °C/Max. 110 °C (120 °C briefly) |
Ambient temperature: |
Min. 5 °C/Max. 60 °C (Mixing valve) Min. 0 °C/Max. 50 °C (Actuator) |
Max. working pressure: | 1.0 Mpa (10 bar) |
Max. differential pressure: | 50 kPa (0.5 bar) |
Leakage: | < 1% of Kvs at 50 kPa |
Angle of rotation: |
90°/360° (Mixing valve) 90° (Actuator - electically limited) |
Torque: |
< 1 Nm (Mixing valve)
5 Nm (Actuator) |
Media 1: | Water - Glycol mixture max. 50% Ethanol mixture max. 30% |
Thread standard: | Rp - female thread, G - male thread |
Actuator: |
230 VAC 50 Hz
24 VAC 50 Hz |
Operation time: | 110 s |
Direction of operation: | Selectable |
Position indication: | Reversible scale |
Manual override: | Disengagement of gears |
Electrical connection: | Cable 1 m |
Signal connector: |
3-point SPDT
0 - 10 VDC/4-20 mA |
Protection type: | IP 44 |
Protection class: | II |
Material, valve body: | Brass EN 12165 CW617N |
Material, slide/spindle: | Brass EN 12165 CW617N |
Material, sealing: | EPDM |
Spindle sealing: | Two O-rings |
LK 840 ThermoMix C is a motorized 3-way valve that can be used as a mixing valve or as a diverting valve in heating systems.
Wiring Diagram
Valve Characteristics
Capacity Diagram
LK 840 C - Female Thread
Article | Dim. | Kvs m³/h | A mm | B mm | C mm | D mm | E mm | F mm | Weight (kg) |
---|---|---|---|---|---|---|---|---|---|
181855 | F ½" | 0,6 | 80 | 40 | 64 | 20 | 27 | 71 | 0.7 |
Other dimensions on request.
LK 840 C - Male Thread
Article | Dim. | Kvs m³/h | A mm | B mm | C mm | D mm | E mm | F mm | Weight (kg) |
---|---|---|---|---|---|---|---|---|---|
181868 | M 1" | 6,3 | 80 | 40 | 64 | 20 | 27 | 71 | 0.7 |
Other dimensions on request.
LK 840 C - Compression fitting
Article | Dim. | Kvs m³/h | A mm | B mm | C mm | D mm | E mm | F mm | Weight (kg) |
---|---|---|---|---|---|---|---|---|---|
181873 | 15 mm | 2,5 | 114 | 57 | 81 | 20 | 27 | 71 | 0.8 |
181874 | 18 mm | 2,5 | 114 | 57 | 81 | 20 | 27 | 71 | 0.8 |
181875 | 22 mm | 2,5 | 114 | 57 | 81 | 20 | 27 | 71 | 0.8 |
LK 940 C
Article | Connection | Voltage | Torque | Operation time | A mm | B mm | C mm | D mm | E mm | Weight (kg) |
---|---|---|---|---|---|---|---|---|---|---|
066127 | 1 m cable | 230 V | 5 Nm | 110 s* | 109 | 58 | 45 | 73 | 85 | 0.4 |
066128 | 1 m cable 0-10 VDC | 24 VAC | 5 Nm | 110 s* | 109 | 58 | 45 | 73 | 85 | 0.4 |
*Other operation times on request.
Accessories & Spare parts
Article no. | Article | Position |
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