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LK 840 ThermoMix®
LK 840 - Female thread 8 variants
Article | Dim. | Kvs m³/h | A mm | B mm | C mm | D mm | E mm | F mm | Weight (kg) | Dimensional sketch | Item List |
---|---|---|---|---|---|---|---|---|---|---|---|
181010 | F ½" | 0,6 | 80 | 40 | 75 | 20 | 28 | 82 | 0.7 |
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|
181011 | F ½" | 1,0 | 80 | 40 | 75 | 20 | 28 | 82 | 0.7 |
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|
180845 | F ½" | 2,5 | 80 | 40 | 75 | 20 | 28 | 82 | 0.7 |
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|
180846 | F ¾" | 4,0 | 80 | 40 | 75 | 20 | 28 | 82 | 0.7 |
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|
180847 | F ¾" | 6,3 | 80 | 40 | 75 | 20 | 28 | 82 | 0.7 |
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|
181350 | F 1" | 6,3 | 82 | 41 | 76 | 22 | 31 | 87 | 0.8 |
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180849 | F 1" | 12 | 82 | 41 | 76 | 22 | 31 | 87 | 0.8 |
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180850 | F 1¼" | 15 | 84 | 42 | 77 | 25 | 32 | 91 | 0.9 |
|
181010
Dim. | F ½" |
Kvs m³/h | 0,6 |
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Weight (kg) | 0.7 |
Dimensional sketch | |
Item list |
|
181011
Dim. | F ½" |
Kvs m³/h | 1,0 |
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Weight (kg) | 0.7 |
Dimensional sketch | |
Item list |
|
180845
Dim. | F ½" |
Kvs m³/h | 2,5 |
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Weight (kg) | 0.7 |
Dimensional sketch | |
Item list |
|
180846
Dim. | F ¾" |
Kvs m³/h | 4,0 |
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Weight (kg) | 0.7 |
Dimensional sketch | |
Item list |
|
180847
Dim. | F ¾" |
Kvs m³/h | 6,3 |
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Weight (kg) | 0.7 |
Dimensional sketch | |
Item list |
|
181350
Dim. | F 1" |
Kvs m³/h | 6,3 |
A mm | 82 |
B mm | 41 |
C mm | 76 |
D mm | 22 |
E mm | 31 |
F mm | 87 |
Weight (kg) | 0.8 |
Dimensional sketch | |
Item list |
|
180849
Dim. | F 1" |
Kvs m³/h | 12 |
A mm | 82 |
B mm | 41 |
C mm | 76 |
D mm | 22 |
E mm | 31 |
F mm | 87 |
Weight (kg) | 0.8 |
Dimensional sketch | |
Item list |
|
180850
Dim. | F 1¼" |
Kvs m³/h | 15 |
A mm | 84 |
B mm | 42 |
C mm | 77 |
D mm | 25 |
E mm | 32 |
F mm | 91 |
Weight (kg) | 0.9 |
Dimensional sketch | |
Item list |
|
The valve is also available with the bevel of the spindle rotated 180° (Design E). For more information please contact our Sales Department.
Article 181010
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Article 181011
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Article 180845
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Article 180846
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Article 180847
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Article 181350
A mm | 82 |
B mm | 41 |
C mm | 76 |
D mm | 22 |
E mm | 31 |
F mm | 87 |
Article 180848
A mm | 82 |
B mm | 41 |
C mm | 76 |
D mm | 22 |
E mm | 31 |
F mm | 87 |
Article 180849
A mm | 82 |
B mm | 41 |
C mm | 76 |
D mm | 22 |
E mm | 31 |
F mm | 87 |
Article 180850
A mm | 84 |
B mm | 42 |
C mm | 77 |
D mm | 25 |
E mm | 32 |
F mm | 91 |
LK 840 - Male thread 6 variants
Article | Dim. | Kvs m³/h | A mm | B mm | C mm | D mm | E mm | F mm | Weight (kg) | Dimensional sketch | Item List |
---|---|---|---|---|---|---|---|---|---|---|---|
180851 | M ¾" | 2,5 | 80 | 40 | 75 | 20 | 28 | 82 | 0.7 |
|
|
180852 | M 1" | 4,0 | 80 | 40 | 75 | 20 | 28 | 82 | 0.7 |
|
|
180853 | M 1" | 6,3 | 80 | 40 | 75 | 20 | 28 | 82 | 0.7 |
|
|
180854 | M 1¼" | 8,0 | 82 | 41 | 76 | 22 | 31 | 87 | 0.8 |
|
|
180855 | M 1¼" | 12 | 82 | 41 | 76 | 22 | 31 | 87 | 0.8 |
|
|
180856 | M 1½" | 15 | 84 | 42 | 77 | 24 | 32 | 90 | 0.9 |
|
180851
Dim. | M ¾" |
Kvs m³/h | 2,5 |
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Weight (kg) | 0.7 |
Dimensional sketch | |
Item list |
|
180852
Dim. | M 1" |
Kvs m³/h | 4,0 |
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Weight (kg) | 0.7 |
Dimensional sketch | |
Item list |
|
180853
Dim. | M 1" |
Kvs m³/h | 6,3 |
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Weight (kg) | 0.7 |
Dimensional sketch | |
Item list |
|
180854
Dim. | M 1¼" |
Kvs m³/h | 8,0 |
A mm | 82 |
B mm | 41 |
C mm | 76 |
D mm | 22 |
E mm | 31 |
F mm | 87 |
Weight (kg) | 0.8 |
Dimensional sketch | |
Item list |
|
180855
Dim. | M 1¼" |
Kvs m³/h | 12 |
A mm | 82 |
B mm | 41 |
C mm | 76 |
D mm | 22 |
E mm | 31 |
F mm | 87 |
Weight (kg) | 0.8 |
Dimensional sketch | |
Item list |
|
180856
Dim. | M 1½" |
Kvs m³/h | 15 |
A mm | 84 |
B mm | 42 |
C mm | 77 |
D mm | 24 |
E mm | 32 |
F mm | 90 |
Weight (kg) | 0.9 |
Dimensional sketch | |
Item list |
|
Article 180851
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Article 180852
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Article 180853
A mm | 80 |
B mm | 40 |
C mm | 75 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Article 180854
A mm | 82 |
B mm | 41 |
C mm | 76 |
D mm | 22 |
E mm | 31 |
F mm | 87 |
Article 180855
A mm | 82 |
B mm | 41 |
C mm | 76 |
D mm | 22 |
E mm | 31 |
F mm | 87 |
Article 180856
A mm | 84 |
B mm | 42 |
C mm | 77 |
D mm | 24 |
E mm | 32 |
F mm | 90 |
LK 840 - 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 |
---|---|---|---|---|---|---|---|---|---|---|---|
181519 | M 2" | 24 | 124 | 62 | 98 | 30 | 36 | 100 | 2.1 |
|
181519
Dim. | M 2" |
Kvs m³/h | 24 |
A mm | 124 |
B mm | 62 |
C mm | 98 |
D mm | 30 |
E mm | 36 |
F mm | 100 |
Weight (kg) | 2.1 |
Dimensional sketch | |
Item list |
|
Article 181519
A mm | 124 |
B mm | 62 |
C mm | 98 |
D mm | 30 |
E mm | 36 |
F mm | 100 |
LK 840 - Compression fitting 6 variants
Article | Dim. | Kvs m³/h | A mm | B mm | C mm | D mm | E mm | F mm | Weight (kg) | Dimensional sketch | Item List |
---|---|---|---|---|---|---|---|---|---|---|---|
180857 | 15 mm | 2,5 | 114 | 57 | 92 | 20 | 28 | 82 | 0.8 |
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|
180858 | 18 mm | 2,5 | 114 | 57 | 92 | 20 | 28 | 82 | 0.8 |
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|
180859 | 22 mm | 2,5 | 114 | 57 | 92 | 20 | 28 | 82 | 0.8 |
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180893 | 22 mm | 6,3 | 87 | 44 | 78 | 20 | 28 | 82 | 0.8 |
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|
180860 | 28 mm | 4,0 | 120 | 60 | 95 | 20 | 28 | 82 | 0.8 |
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|
180861 | 28 mm | 6,3 | 120 | 60 | 95 | 20 | 28 | 82 | 0.8 |
|
180857
Dim. | 15 mm |
Kvs m³/h | 2,5 |
A mm | 114 |
B mm | 57 |
C mm | 92 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Weight (kg) | 0.8 |
Dimensional sketch | |
Item list |
|
180858
Dim. | 18 mm |
Kvs m³/h | 2,5 |
A mm | 114 |
B mm | 57 |
C mm | 92 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Weight (kg) | 0.8 |
Dimensional sketch | |
Item list |
|
180859
Dim. | 22 mm |
Kvs m³/h | 2,5 |
A mm | 114 |
B mm | 57 |
C mm | 92 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Weight (kg) | 0.8 |
Dimensional sketch | |
Item list |
|
180893
Dim. | 22 mm |
Kvs m³/h | 6,3 |
A mm | 87 |
B mm | 44 |
C mm | 78 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Weight (kg) | 0.8 |
Dimensional sketch | |
Item list |
|
180860
Dim. | 28 mm |
Kvs m³/h | 4,0 |
A mm | 120 |
B mm | 60 |
C mm | 95 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Weight (kg) | 0.8 |
Dimensional sketch | |
Item list |
|
180861
Dim. | 28 mm |
Kvs m³/h | 6,3 |
A mm | 120 |
B mm | 60 |
C mm | 95 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Weight (kg) | 0.8 |
Dimensional sketch | |
Item list |
|
Article 180857
A mm | 114 |
B mm | 57 |
C mm | 92 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Article 180858
A mm | 114 |
B mm | 57 |
C mm | 92 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Article 180859
A mm | 114 |
B mm | 57 |
C mm | 92 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Article 180893
A mm | 87 |
B mm | 44 |
C mm | 78 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Article 180860
A mm | 120 |
B mm | 60 |
C mm | 95 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Article 180861
A mm | 120 |
B mm | 60 |
C mm | 95 |
D mm | 20 |
E mm | 28 |
F mm | 82 |
Description
LK 840 ThermoMix® is a 3-way valve which can be used as a mixing valve or as a diverting valve in heating systems.
LK 840 ThermoMix® is suitable for motorization.
LK 840 can be equipped with an insulation - see under Accessories. For more information, please see the product sheet for insulations.
The valve can be mounted at any angle. LK 840 ThermoMix® can easily be adapted for right- or left-hand mounting.
Technical Data
Angle of rotation: | 90°/360° |
Torque: | < 1 Nm |
Leakage: | < 1% of Kvs at 50 kPa |
Max. working pressure: | 1.0 MPa (10 bar) |
Max. differential pressure: | 50 kPa ( 0.5 bar) |
Working temperature: | Min. 5 °C/Max. 110 °C (120 °C briefly) |
Ambient temperature: | Min. 5 °C/Max. 60 °C |
Thread standard: | Rp - female thread, G - male thread |
Media 1: | Water - Glycol mixture max. 50% Ethanol mixture max. 30% |
Material, valve body: | Brass EN 12165 CW617N |
Material, internal cover: | PPS Composite |
Material, external cover: | Aluminium |
Material, slide/spindle: | Brass EN 12165 CW617N |
Material, sealing: | EPDM |
Spindle sealing: | Two O-rings |
Application
Technical Diagrams
Valve Characteristics
Capacity Diagram
Product sheet
LK 840 ThermoMix®
Instruction manual
840 ThermoMix - Instruction_ 048612
Instruction manual
840 ThermoMix DN 40_50 - Instruction_148576
Instruction manual
Insulation 820, 821, 822, 840, 841 - Instruction_148693
Certificate/Type approval
CE Declaration of Conformity - 830, 831, 840, 841, 842, 845, 846.pdf
Article no. | Article | Position |
---|---|---|
187066 | Sealing kit 811/840/841, DN 15-20 | 1 |
187067 | Sealing kit 840/841/842, DN 25-32 | 1 |
187068 | Repair kit 840, DN 15-20 | 2 |
187070 | Repair kit 840, DN 25-32 | 2 |
187107 | Insulation, DN 15-20 | 3 |
187108 | Insulation, DN 25-32 | 3 |
187078 | Sealing kit 840/841, DN 40-50 | 4 |
187079 | Repair kit 840, DN 40 | 5 |
187116 | Repair kit 840, DN 50 | 5 |