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  1. Back
LK 551 HydroMix Product image (LKA)
LK 551 HydroMix Film (LKA) LK 551 HydroMix
LK 551 HydroMix Product image (LKA)
LK 551 HydroMix Film (LKA) LK 551 HydroMix
551 HydroMix RP Download image

LK 551 HydroMix

  • Comfort and safety in one
  • Integrated anti-scald function
  • Requires no maintenance
Technical data
Technical data
  • Working temperature: Min. 5 °C/Max. 65 °C
    Min. 5 °C/Max. 95 °C
  • Operating temperature: Min. 10 °C/Max. 30 °C (Max. 65 °C)
    Min. 25 °C/Max. 45 °C
    Min. 35 °C/Max. 55 °C
    Min. 35 °C/Max. 65 °C
  • Max. working pressure: 1.0 MPa (10 bar)
  • 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, DZR Brass EN 12165 CW625N
  • Other data: Temperature stability ±3 °C
LK 551 HydroMix is a mixing valve for water heating and heating systems. The mixing valve has a thermostatic element that regulates the supply of cold as well as hot water in order to achieve the desired ­temperature. The valve has an anti-scald function that shuts off the ­incoming hot water flow in case of failure of cold water supply.
Read more
Arrows on the valve body indicate the direction of the flow.
C = incoming cold water
H = incoming hot water
M = outgoing mixed water

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 specified range. The ­protective cap prevents unintentional changes of the ­temperature setting.
Read less
Datasheet Variants
  • Articles
  • Application
  • Technical diagrams
  • Accessories & spare parts
  • Downloads

LK 551 - Compression fitting

LK 551 - Compression fitting  Product image (LKA)
LK 551 - Compression fitting  Measurement drawing (LKA)
LK 551 - Compression fitting  Product image (LKA)
LK 551 - Compression fitting  Measurement drawing (LKA)
 
Article no. Dim. Kvs m³/h A mm B mm C mm D mm Note Weight (kg) Save in my item list
181621 15 mm1.386.5511064525 - 45 °C0.4
181622 22 mm1.685521064525 - 45 °C0.4
181523 15 mm 1.386.5511064535 - 55 °C 0.5
181487 22 mm1.685521064535 - 55 °C 0.6
181456 15 mm1.386.5511064535 - 65 °C0.5
181457 22 mm 1.685521064535 - 65 °C 0.6
182206 28 mm3.5110801385510 - 30 °C0.9
182207 28 mm4.2110801385525 - 45 °C0.9
182208 28 mm3.5110801385535 - 65 °C0.9

LK 551 - Female thread

LK 551 - Female thread  Product image (LKA)
LK 551 - Female thread  Measurement drawing (LKA)
LK 551 - Female thread  Product image (LKA)
LK 551 - Female thread  Measurement drawing (LKA)
 
Article no. Dim. Kvs m³/h A mm B mm C mm D mm Note Weight (kg) Save in my item list
181616 F ½"1.5709943.54525 - 45 °C0.5
181617 F ¾"1.6709943.54525 - 45 °C0.5
181455 F ½"1.5709943.54535 - 65 °C0.5
181486 F ¾"1.6709943.54535 - 65 °C 0.5
182203 F 1"3.584121625510 - 30 °C *0.9
182204 F 1"4.284121625525 - 45 °C *0.9
182205 F 1 "3.584121625535 - 65 °C *0.9

* Material, valve body: EN 12165 CW617N

LK 551 - Male thread

LK 551 - Male thread  Product image (LKA)
LK 551 - Male thread  Measurement drawing (LKA)
LK 551 - Male thread  Product image (LKA)
LK 551 - Male thread  Measurement drawing (LKA)
 
Article no. Dim. Kvs m³/h A mm B mm C mm D mm Note Weight (kg) Save in my item list
181618 M ½"1.37042.5994525 - 45 °C0.4
181619 M ¾"1.57043.5994525 - 45 °C0.5
181620 M 1"1.67043.5994525 - 45 °C0.5
181452 M ½"1.37042.5994535 - 65 °C 0.4
181453 M ¾"1.57043.5994535 - 65 °C0.5
181454 M 1"1.67043.5994535 - 65 °C 0.5
182197 M 1"3.584621215510 - 30 °C *0.7
182198 M 1"3.584621215525 - 45 °C *0.7
182199 M 1"3.584621215535 - 65 °C *0.7
182200 M 1¼"3.584621215510 - 30 °C *0.8
182201 M 1¼"4.284621215525 - 45 °C *0.8
182202 M 1¼"3.584621215535 - 65 °C *0.8

* Material, valve body: EN 12165 CW617N

  • LK 551 HydroMix Application image Download image
    LK 551 HydroMix Application image
  • LK 551 HydroMix Application image Download image
    LK 551 HydroMix Application image
  • LK 551 HydroMix Technical diagram Capacity Diagram Download image
    LK 551 HydroMix Technical diagram Capacity Diagram
    Capacity Diagram
LK 551 HydroMix Dissection image Spare parts and Accessories Download image
LK 551 HydroMix Dissection image Spare parts and Accessories
LK 551 HydroMix Dissection image Spare parts and Accessories Download image
LK 551 HydroMix Dissection image Spare parts and Accessories
 
Article no. Article Position
095235Repair kit 551, 25 - 45 °C1
095234Repair kit 551, 35 - 65 °C1
095236Repair kit 551, 35 - 55°C1
095348Repair kit 551, 10 - 30 °C (Kvs 3.2-4.2)1
095349Repair kit 551, 25 - 45 °C (Kvs 3.2-4.2)1
095350Repair kit 551, 35 - 65 °C (Kvs 3.2-4.2)1
092055Connection kit M ½" x ¾" with rotating nut, gaskets, 2 check valves 2
092054Connection kit M ½" x ¾" with rotating nut, gaskets, 1 check valve2
092052Connection kit M ¾" x 1" with rotating nut, gaskets, 1 check valve2
092053Connection kit M ¾" x 1" with rotating nut, gaskets, 2 check valves2
Certificate/Type approval
  • CE Declaration of Conformity_520,521,525,548,550,551
InstructionManual
  • 551 HydroMix
  • 551 HydroMix Repsatsinstruktion
  • LK 551 HydroMix H-kvs
  • 551 HydroMix koppelsatsinstruktion
  • 551 HydroMixF_Instruktion.pdf
Brochure
  • 551 HydroMix, KitHWC, KitSolar_ENG
  • 551 HydroMix_Kit Solar_Kit HWC_DE

Variants

LK 551 - Compression fitting  Product image (LKA)

LK 551 - Compression fitting

LK 551 - Female thread  Product image (LKA)

LK 551 - Female thread

LK 551 - Male thread  Product image (LKA)

LK 551 - Male thread

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LK Armatur AB

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254 66 Helsingborg 
Sverige

Tel. 042-16 92 00
Fax. 042-16 92 20

info@lkarmatur.se
order@lkarmatur.se

VAT no: 556249-9508

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