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LK Group

  • 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

  • LK Systems

    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

  • LK Pex

    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 550 AquaMix

LK 550 AquaMix

  • Temperature control
  • DZR Brass

LK 550 AquaMix is a mixing valve for water heating with a thermostatic element that regulates the supply of cold water in order to achieve the desired temperature. Self-circulation is prevented with a check val...

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LK 550 AquaMix

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

Variants

LK 550 - Male thread

LK 550 - Male thread 3 variants

Article Dim. Kvs m³/h Weight (kg) Item List
090206 M ½" 1,2 0.3
090063 M ¾" 2,2 0.4
090528 M 1" 2,2 0.5

090206

Dim. M ½"
Kvs m³/h 1,2
Weight (kg) 0.3
Item list

090063

Dim. M ¾"
Kvs m³/h 2,2
Weight (kg) 0.4
Item list

090528

Dim. M 1"
Kvs m³/h 2,2
Weight (kg) 0.5
Item list
LK 550 - Compression fitting

LK 550 - Compression fitting 2 variants

Article Dim. Kvs m³/h Weight (kg) Item List
090200 15 mm 1,2 0.3
090205 22 mm 2,2 0.4

090200

Dim. 15 mm
Kvs m³/h 1,2
Weight (kg) 0.3
Item list

090205

Dim. 22 mm
Kvs m³/h 2,2
Weight (kg) 0.4
Item list

Detailed Information

Description

LK 550 AquaMix is a mixing valve for water heating with a thermostatic element that regulates the supply of cold water in order to achieve the desired temperature. Self-circulation is prevented with a check valve installed in the cold water supply - see under Accessories. Valves with male thread M ½” and 15 mm compression fitting have an airvent for simple draining of smaller water heaters.

Arrows on the valve body indicate the direction of the flow.
KV = incoming cold water
VV = incoming hot water
BV = outgoing warm water

When fitting to a male thread connection adapter LK 373 is used - see under Accessories.

When fitted on top of boiler/storage tanks with built-in water heaters the valve should be installed with some space between boiler/storage tank and valve so as not to let the function of the valve be affected by heat radiation.

The valve knob is used to set the desired warm water temperature within the range of 38 °C to 65 °C. The maximum temperature can be calibrated as follows:

Increasing the maximum temperature:
Turn the knob anticlockwise to (+). Loosen the screw and move the knob out to the side. Then turn the knob clockwise to (-) without it being engaged. Adjustments are carried out in small steps. A ¼ turn corresponds to approximately 7 °C. Reinstall the knob and check that it engages with the teeth. Tighten the screw and then turn the knob to max (+). Max. calibration for increasing the temperature is a ½ turn.

Reducing the maximum temperature:
Do the procedure in reverse. Turn the knob clockwise to (-) and the disengaged knob anticlockwise to (+).

Technical Data

Max. working pressure: 1.0 MPa (10 bar)
Working temperature: Min. 5 °C/Max. 90 °C
Operating temperature: Min. 38 °C/Max. 65 °C
Thread standard: G - male thread
Material, valve body: DZR Brass EN 12165 CW625N
Material, sealing: EPDM

Application

Technical Diagrams

Capacity Diagram

Documentation

Product sheet

LK 550 AquaMix

Applications

Biofuel ENG

Applications

Solar heating ENG

Applications

Water heating ENG

Applications

Heat pump ENG

Accessories & Spare parts

Article no. Article Position
055008 Check valve NN ½" 0
092103 528 Cartridge Check valve 22 mm 0
055009 Check valve NN ¾" 0
092105 528 Cartridge Check valve 15 mm 0
4920723 LK 683 Repair kit, Mixing valve 1
1898055 Adapter LK 373 22 x M ¾" 2
052002 LK 373 Adapter 15 x M ½" 2
187224 Airscrew 3

Questions & Answers

What should I do if I have misplaced the air vent to my LK 550 AquaMix?

The air vent can be ordered directly from us as a spare part, article number: 187224

The warm water from my tap is not the correct temperature: what should I do?

The temperature field can be adjusted by following the instructions in the product data sheet for the LK 550 AquaMix and LK 548 AquaKit. The product data sheet can be downloaded from our website under each product.

I have an LK 550 where I replaced the insert. Now I can´t get out enough heat from it, can I do something about it?

You can increase the maximum temperature. You can do this as follows:  Turn the knob counterclockwise to (+). Loosen the screw and put the knob to one side. Then turn the knob in the "air" clockwise towards (–). This adjustment can be made incrementally, with a ¼ turn corresponding to approx. 7°C. Replace the knob and feel for when it grips the cog. Fasten the screw and then turn the knob to max (+). Maximum calibration to increase the temperature is a ½ turn