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LK 841 ThermoMix® 2.0 is designed for heating systems where a high return temperature is required to prevent corrosion and thus extend the life length of the heat source.
LK 841 ThermoMix® 2.0
LK 841 2.0 - Female thread 5 variants
Article | Dim. | Kvs m³/h | A mm | B mm | C mm | D mm | E mm | F mm | Weight (kg) | Dimensional sketch | Item List |
---|---|---|---|---|---|---|---|---|---|---|---|
181940 | F ½" | 2,5 | 70 | 35 | 70 | 18 | 29 | 81 | 0.7 |
|
|
181941 | F ¾" | 4,0 | 70 | 35 | 70 | 18 | 29 | 81 | 0.5 |
|
|
181942 | F ¾" | 6,3 | 70 | 35 | 70 | 18 | 29 | 81 | 0.5 |
|
|
181943 | F 1" | 10,0 | 70 | 35 | 70 | 20 | 29 | 83 | 0.5 |
|
|
181944 | F 1¼" | 16,0 | 84 | 42 | 84 | 24 | 32 | 90 | 0.8 |
|
181940
Dim. | F ½" |
Kvs m³/h | 2,5 |
A mm | 70 |
B mm | 35 |
C mm | 70 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Weight (kg) | 0.7 |
Dimensional sketch | |
Item list |
|
181941
Dim. | F ¾" |
Kvs m³/h | 4,0 |
A mm | 70 |
B mm | 35 |
C mm | 70 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Weight (kg) | 0.5 |
Dimensional sketch | |
Item list |
|
181942
Dim. | F ¾" |
Kvs m³/h | 6,3 |
A mm | 70 |
B mm | 35 |
C mm | 70 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Weight (kg) | 0.5 |
Dimensional sketch | |
Item list |
|
181943
Dim. | F 1" |
Kvs m³/h | 10,0 |
A mm | 70 |
B mm | 35 |
C mm | 70 |
D mm | 20 |
E mm | 29 |
F mm | 83 |
Weight (kg) | 0.5 |
Dimensional sketch | |
Item list |
|
181944
Dim. | F 1¼" |
Kvs m³/h | 16,0 |
A mm | 84 |
B mm | 42 |
C mm | 84 |
D mm | 24 |
E mm | 32 |
F mm | 90 |
Weight (kg) | 0.8 |
Dimensional sketch | |
Item list |
|
Other dimensions on request.
Article 181940
A mm | 70 |
B mm | 35 |
C mm | 70 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Article 181941
A mm | 70 |
B mm | 35 |
C mm | 70 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Article 181942
A mm | 70 |
B mm | 35 |
C mm | 70 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Article 181943
A mm | 70 |
B mm | 35 |
C mm | 70 |
D mm | 20 |
E mm | 29 |
F mm | 83 |
Article 181944
A mm | 84 |
B mm | 42 |
C mm | 84 |
D mm | 24 |
E mm | 32 |
F mm | 90 |
LK 841 2.0 - Female thread 2 variants
Article | Dim. | Kvs m³/h | A mm | B mm | C mm | D mm | E mm | F mm | Weight (kg) | Dimensional sketch | Item List |
---|---|---|---|---|---|---|---|---|---|---|---|
181945 | F 1½" | 25,0 | 106 | 53 | 106 | 33 | 43 | 110 | 1.6 |
|
|
181946 | F 2" | 40,0 | 106 | 53 | 106 | 33 | 43 | 110 | 1.7 |
|
181945
Dim. | F 1½" |
Kvs m³/h | 25,0 |
A mm | 106 |
B mm | 53 |
C mm | 106 |
D mm | 33 |
E mm | 43 |
F mm | 110 |
Weight (kg) | 1.6 |
Dimensional sketch | |
Item list |
|
181946
Dim. | F 2" |
Kvs m³/h | 40,0 |
A mm | 106 |
B mm | 53 |
C mm | 106 |
D mm | 33 |
E mm | 43 |
F mm | 110 |
Weight (kg) | 1.7 |
Dimensional sketch | |
Item list |
|
Other dimensions on request.
Article 181945
A mm | 106 |
B mm | 53 |
C mm | 106 |
D mm | 33 |
E mm | 43 |
F mm | 110 |
Article 181946
A mm | 106 |
B mm | 53 |
C mm | 106 |
D mm | 33 |
E mm | 43 |
F mm | 110 |
LK 841 2.0 - 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 |
---|---|---|---|---|---|---|---|---|---|---|---|
181949 | M 1" | 6,3 | 80 | 40 | 80 | 18 | 29 | 81 | 0.5 |
|
181949
Dim. | M 1" |
Kvs m³/h | 6,3 |
A mm | 80 |
B mm | 40 |
C mm | 80 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Weight (kg) | 0.5 |
Dimensional sketch | |
Item list |
|
Other dimensions on request.
Article 181947
A mm | 80 |
B mm | 40 |
C mm | 80 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Article 181948
A mm | 80 |
B mm | 40 |
C mm | 80 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Article 181949
A mm | 80 |
B mm | 40 |
C mm | 80 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Article 181950
A mm | 82 |
B mm | 41 |
C mm | 82 |
D mm | 20 |
E mm | 29 |
F mm | 83 |
Article 181951
A mm | 84 |
B mm | 42 |
C mm | 84 |
D mm | 24 |
E mm | 32 |
F mm | 90 |
LK 841 2.0 - Compression Fitting 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 |
---|---|---|---|---|---|---|---|---|---|---|---|
181986 | 22 mm | 2,5 | 114 | 57 | 114 | 18 | 29 | 81 | 0.9 |
|
181986
Dim. | 22 mm |
Kvs m³/h | 2,5 |
A mm | 114 |
B mm | 57 |
C mm | 114 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Weight (kg) | 0.9 |
Dimensional sketch | |
Item list |
|
Other dimensions on request.
Article 181984
A mm | 114 |
B mm | 57 |
C mm | 114 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Article 181985
A mm | 114 |
B mm | 57 |
C mm | 114 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Article 181986
A mm | 114 |
B mm | 57 |
C mm | 114 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Article 181987
A mm | 120 |
B mm | 60 |
C mm | 120 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Article 181988
A mm | 120 |
B mm | 60 |
C mm | 120 |
D mm | 18 |
E mm | 29 |
F mm | 81 |
Description
LK 841 ThermoMix® 2.0 is designed for heating systems where a high return temperature is required to prevent corrosion and thus extend the life length of the heat source.
The valve is suitable for motorization and can be fitted with insulation. For more information, see the insulation data sheet.
A compact design and a octagonal key grip gives an easier access and installation in tight spaces. The valve can be installed in any position and LK 841 ThermoMix® 2.0 can easily be adapted for right- or left-hand mounting.
The valve requires no maintenance but the installation should be
checked regularly.
Technical Data
Working temperature: | Min. 5 °C/Max. 110 °C (120 °C briefly) |
Ambient temperature: | Min. 5 °C/Max. 60 °C |
Max. working pressure: | 1.0 MPa (10 bar) |
Max. differential pressure: | 100 kPa (1 bar) |
Leakage: | < 1.5% of Kvs at 50 kPa |
Angle of rotation: | 90°/360° |
Torque: | < 1 Nm |
Media 1: | Water - Glycol mixture max. 50% Ethanol mixture max. 30% |
Thread standard: | Rp - female thread, G - male thread |
Material, valve body: | Brass EN 12165 CW617N |
Material, internal cover: | PPS Composite |
Material, slide/spindle: | Brass EN 12165 CW617N |
Other data: |
Material, external cover: Aluminium DN 15-32, Composite DN 40-50 Spindle sealing: Two O-rings |
Material, sealing: | EPDM |
Application
Technical Diagrams
Valve Characteristics
CAPACITY DIAGRAM
Product sheet
LK 841 ThermoMix® 2.0
Brochure
Mixing Valves LK 840 & LK 841
Instruction manual
841 ThermoMix 2_0 - Instruction_248061
Instruction manual
841 ThermoMix DN 40_50 - Instruction_248062
Certificate/Type approval
CE Declaration of Conformity - 830, 831, 840, 841, 842, 845, 846.pdf
Article no. | Article | Position |
---|---|---|
187187 | Sealing kit LK 840/841 DN 15-20 | 1 |
187188 | Sealing kit LK 840/841 DN 25 | 1 |
187197 | Sealing kit 840/841 2.0, DN 32 | 1 |
187194 | Repair kit 841 2.0, DN 15-20 | 2 |
187195 | Repair kit 841 2.0, DN 25 | 2 |
187198 | Repair kit 841 2.0, DN 32 | 2 |
187189 | Sealing kit 840/841 2.0, DN 40-50 | 3 |
187196 | Repair kit 841 2.0, DN 40-50 | 4 |
187107 | Insulation, DN 15-20 | 5 |
187108 | Insulation, DN 25-32 | 5 |
Technical Data
Working temperature: | Min. 5 °C/Max. 110 °C (120 °C briefly) |
Ambient temperature: | Min. 5 °C/Max. 60 °C |
Max. working pressure: | 1.0 MPa (10 bar) |
Max. differential pressure: | 100 kPa (1 bar) |
Leakage: | < 1.5% of Kvs at 50 kPa |
Angle of rotation: | 90°/360° |
Torque: | < 1 Nm |
Media 1: | Water - Glycol mixture max. 50% Ethanol mixture max. 30% |
Thread standard: | Rp - female thread, G - male thread |
Material, valve body: | Brass EN 12165 CW617N |
Material, internal cover: | PPS Composite |
Material, slide/spindle: | Brass EN 12165 CW617N |
Other data: |
Material, external cover: Aluminium DN 15-32, Composite DN 40-50 Spindle sealing: Two O-rings |
Material, sealing: | EPDM |
LK 841 ThermoMix® 2.0 is designed for heating systems where a high return temperature is required to prevent corrosion and thus extend the life length of the heat source.
Valve Characteristics
CAPACITY DIAGRAM
LK 841 2.0 - Female thread
Article | Dim. | Kvs m³/h | A mm | B mm | C mm | D mm | E mm | F mm | Weight (kg) |
---|---|---|---|---|---|---|---|---|---|
181940 | F ½" | 2,5 | 70 | 35 | 70 | 18 | 29 | 81 | 0.7 |
181941 | F ¾" | 4,0 | 70 | 35 | 70 | 18 | 29 | 81 | 0.5 |
181942 | F ¾" | 6,3 | 70 | 35 | 70 | 18 | 29 | 81 | 0.5 |
181943 | F 1" | 10,0 | 70 | 35 | 70 | 20 | 29 | 83 | 0.5 |
181944 | F 1¼" | 16,0 | 84 | 42 | 84 | 24 | 32 | 90 | 0.8 |
Other dimensions on request.
LK 841 2.0 - Female thread
Article | Dim. | Kvs m³/h | A mm | B mm | C mm | D mm | E mm | F mm | Weight (kg) |
---|---|---|---|---|---|---|---|---|---|
181945 | F 1½" | 25,0 | 106 | 53 | 106 | 33 | 43 | 110 | 1.6 |
181946 | F 2" | 40,0 | 106 | 53 | 106 | 33 | 43 | 110 | 1.7 |
Other dimensions on request.
LK 841 2.0 - Male thread
Article | Dim. | Kvs m³/h | A mm | B mm | C mm | D mm | E mm | F mm | Weight (kg) |
---|---|---|---|---|---|---|---|---|---|
181949 | M 1" | 6,3 | 80 | 40 | 80 | 18 | 29 | 81 | 0.5 |
Other dimensions on request.
LK 841 2.0 - Compression Fitting
Article | Dim. | Kvs m³/h | A mm | B mm | C mm | D mm | E mm | F mm | Weight (kg) |
---|---|---|---|---|---|---|---|---|---|
181986 | 22 mm | 2,5 | 114 | 57 | 114 | 18 | 29 | 81 | 0.9 |
Other dimensions on request.
Accessories & Spare parts
Article no. | Article | Position |
---|---|---|
187187 | Sealing kit LK 840/841 DN 15-20 | 1 |
187188 | Sealing kit LK 840/841 DN 25 | 1 |
187197 | Sealing kit 840/841 2.0, DN 32 | 1 |
187194 | Repair kit 841 2.0, DN 15-20 | 2 |
187195 | Repair kit 841 2.0, DN 25 | 2 |
187198 | Repair kit 841 2.0, DN 32 | 2 |
187189 | Sealing kit 840/841 2.0, DN 40-50 | 3 |
187196 | Repair kit 841 2.0, DN 40-50 | 4 |
187107 | Insulation, DN 15-20 | 5 |
187108 | Insulation, DN 25-32 | 5 |