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  • LK Armatur

    LK Armatur is a leading producer in Europe, manufactures millions of valves per year for the global HVAC market. Our solutions are based on a comprehensive view of how valves, control units, components and prefabricated products work together. Svenska English Deutsch Italiano Yкраїнська Suomi

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    LK Systems is the leading manufacturer of easy-to-install systems for heating and tap water distribution and pre-insulated pipes in the Nordics. Through our prefabrication factory, we also provide tailor-made solutions that simplify the installation process even further. Svenska English Norsk Suomi

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    Our PEX Pipe Extrusion business area is an innovative manufacturer of high-quality plastic pipes for the heating and plumbing industry. Our core is the efficient, high-technology production process for crosslinked PE-Xa pipes, resulting in products with a unique combination of flexibility and hydrostatic strength. English

  • LK Group

    LK is a family-owned trading and production group, operating on a global scale within the HVAC-area. We are the market leader in Sweden and has an increasing sales of products, systems and solutions in the Nordic countries, Europe and the USA. Svenska English
LK 842 ThermoMix® P

LK 842 ThermoMix® P

  • Flange connection
  • Simple motorisation

LK 842 ThermoMix® P is a 4-way mixing valve for mounting on heating boilers. LK 842 ThermoMix® P is suitable for motorization. The valve can be mounted at any angle. LK 842 ThermoMix® P can easily be adapted ...

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LK 842 ThermoMix® P

  • Variants
  • Detailed Information
  • Documentation
  • Accessories & Spare parts
  • Questions & Answers

Variants

LK 842 - Male thread

LK 842 - Male thread 1 artikel

Article Dim. Kvs m³/h A mm B mm C mm D mm E mm F mm G mm H mm J mm K mm L mm M mm Weight (kg) Dimensional sketch Item List
180879 M ¾" 5,5 84 62 74 97 31 94 30 67 40 57 24 9 0.8

180879

Dim. M ¾"
Kvs m³/h 5,5
A mm 84
B mm 62
C mm 74
D mm 97
E mm 31
F mm 94
G mm 30
H mm 67
J mm 40
K mm 57
L mm 24
M mm 9
Weight (kg) 0.8
Dimensional sketch
Item list
LK 842 - Compression fitting

LK 842 - Compression fitting 2 variants

Article Dim. Kvs m³/h A mm B mm C mm D mm E mm F mm G mm H mm J mm K mm L mm M mm Weight (kg) Dimensional sketch Item List
180880 15 mm 5,5 99 62 74 97 31 94 30 67 40 57 24 9 0.8
180881 22 mm 5,5 99 62 74 97 31 94 30 67 40 57 24 9 0.8

180880

Dim. 15 mm
Kvs m³/h 5,5
A mm 99
B mm 62
C mm 74
D mm 97
E mm 31
F mm 94
G mm 30
H mm 67
J mm 40
K mm 57
L mm 24
M mm 9
Weight (kg) 0.8
Dimensional sketch
Item list

180881

Dim. 22 mm
Kvs m³/h 5,5
A mm 99
B mm 62
C mm 74
D mm 97
E mm 31
F mm 94
G mm 30
H mm 67
J mm 40
K mm 57
L mm 24
M mm 9
Weight (kg) 0.8
Dimensional sketch
Item list

Detailed Information

Description

LK 842 ThermoMix® P is a 4-way mixing valve for mounting on heating boilers.

LK 842 ThermoMix® P is suitable for motorization.

The valve can be mounted at any angle. LK 842 ThermoMix® P can easily be adapted for right- or left-hand mounting.

The valve requires no maintenance but the installation should be checked regularly.

Technical Data

Angle of rotation: 90°
Torque: < 1 Nm
Leakage: < 1.5% 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: G - male thread
Media 1: Water - Glycol mixture max. 50% Ethanol mixture max. 30%
Material, valve body: Brass EN 1982 CB753S
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

Documentation

Product sheet

LK 842 ThermoMix® P

Instruction manual

842 ThermoMix - Instruction_048959

Certificate/Type approval

CE Declaration of Conformity - 830, 831, 840, 841, 842, 845, 846.pdf

Accessories & Spare parts

Article no. Article Position
013083 Gasket 842 1
187067 Sealing kit 840/841/842, DN 25-32 2
187071 Repair kit 841/842, DN 25-32 3

Questions & Answers

Is the LK SmartComfort compatible with a mixing valve from another manufacturer?

Yes, we provide mounting kits for other models, see Mounting kits on our website.