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LK 840 ThermoMix® C - Compression fitting

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.

Specification

- 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: Water - Glycol/Ethanol mixture max. 50%
- 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

Technical specification

Unique ref.lk_840_thermomix_c_compression_fitting
Product familyLK Armatur
Product groupMixing Valves
TypeObject (single object)
Date of publishing2021-03-31
Edition number1

Links

Product urlhttps://www.lkarmatur.com/lk-840-thermomix-c/55569757.aspx
Installation instructionshttps://www.lkarmatur.se/globalassets/inriver/resources/148995-840-thermomix-c_instruktion-a63.pdf
Instruction videohttps://youtu.be/K0Vyf8PoBsE
Product certificationhttps://www.lkarmatur.se/globalassets/inriver/resources/13-doc-shuntventiler-830-831-840-841-842-845-8464.pdf
Technical descriptionhttps://www.lkarmatur.com/lk-840-thermomix-c/55569757.aspx

Material mainBrass
Designed inSweden
Manufactured inSweden

Classification

BIMobject CategoryPlumbing - Valves
IFC classificationValve
UNSPSC nameValves
UNSPSC code401416
Uniclass 2015 CodeSs_60_40_37
Uniclass 2015 DescriptionHeating systems
CSI MasterFormat 2014 Code43 00 00
CSI MasterFormat 2014 TitleProcess Gas and Liquid Handling, Purification, and Storage Equipment
OmniClass Number23-27 31 29
OmniClass TitleMixing Valves
CSI UniFormat II CodeD30
CSI UniFormat II TitleHVAC