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LK HydronicGroup H 125 DN 25

LK HydronicGroup H 125 DN 25

  • All in one
  • Easy to install
  • Easy to combine with electronic regulation

LK HydronicGroup H 125 DN 25 is a complete pump group that is suitable for heating where direct supply or mixed supply is desirable. Consists of a highly efficient circulation pump, insulation, wall mounting br...

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LK HydronicGroup H 125 DN 25

  • Variants
  • Detailed Information
  • Documentation
  • Videos
  • Accessories & Spare parts

Variants

LK 861 H 125 DN 25 - Direct supply

LK 861 H 125 DN 25 - Direct supply 2 variants

Article Dim. DN Voltage Weight (kg) Item List
299458 M 1½" / F 1" x M 1½" DN 25 230 VAC, 50/60 Hz 5
299459 M 1½" / F 1" x M 1½" DN 25 230 VAC, 50/60 Hz 5.2

299458

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Voltage 230 VAC, 50/60 Hz
Weight (kg) 5
Item list

299459

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Voltage 230 VAC, 50/60 Hz
Weight (kg) 5.2
Item list
LK 860 H 125 DN 25 - Manifold

LK 860 H 125 DN 25 - Manifold 7 variants

Article Type Dim. Voltage Note Weight (kg) Item List
182419 Manifold, 1 pc groups with hydraulic separator M 1½" 230 VAC, 50/60 Hz 0.4 MPa (4 bar) 3.5
182348 Manifold, 2 pc groups, without hydraulic separator M 1½" 230 VAC, 50/60 Hz 0.4 MPa (4 bar) 6
182350 Manifold, 2 pc groups with hydraulic separator M 1½" 230 VAC, 50/60 Hz 0.4 MPa (4 bar) 7
182349 Manifold, 3 pc groups, without hydraulic separator M 1½" 230 VAC, 50/60 Hz 0.4 MPa (4 bar) 8
182351 Manifold, 3 pc groups, with hydraulic separator M 1½" 230 VAC, 50/60 Hz 0.4 MPa (4 bar) 9
182417 Manifold, 4 pc groups, without hydraulic separator M 1½" 230 VAC, 50/60 Hz 0.4 MPa (4 bar) 9
182418 Manifold, 4 pc groups, with hydraulic separator M 1½" 230 VAC, 50/60 Hz 0.4 MPa (4 bar) 10

182419

Type Manifold, 1 pc groups with hydraulic separator
Dim. M 1½"
Voltage 230 VAC, 50/60 Hz
Note 0.4 MPa (4 bar)
Weight (kg) 3.5
Item list

182348

Type Manifold, 2 pc groups, without hydraulic separator
Dim. M 1½"
Voltage 230 VAC, 50/60 Hz
Note 0.4 MPa (4 bar)
Weight (kg) 6
Item list

182350

Type Manifold, 2 pc groups with hydraulic separator
Dim. M 1½"
Voltage 230 VAC, 50/60 Hz
Note 0.4 MPa (4 bar)
Weight (kg) 7
Item list

182349

Type Manifold, 3 pc groups, without hydraulic separator
Dim. M 1½"
Voltage 230 VAC, 50/60 Hz
Note 0.4 MPa (4 bar)
Weight (kg) 8
Item list

182351

Type Manifold, 3 pc groups, with hydraulic separator
Dim. M 1½"
Voltage 230 VAC, 50/60 Hz
Note 0.4 MPa (4 bar)
Weight (kg) 9
Item list

182417

Type Manifold, 4 pc groups, without hydraulic separator
Dim. M 1½"
Voltage 230 VAC, 50/60 Hz
Note 0.4 MPa (4 bar)
Weight (kg) 9
Item list

182418

Type Manifold, 4 pc groups, with hydraulic separator
Dim. M 1½"
Voltage 230 VAC, 50/60 Hz
Note 0.4 MPa (4 bar)
Weight (kg) 10
Item list
LK 862 H 125 DN 25 - Mixed supply, right version

LK 862 H 125 DN 25 - Mixed supply, right version 4 variants

Article Dim. DN Kvs m³/h Voltage Weight (kg) Note Item List
299462 M 1½" / F 1" x M 1½" DN 25 6.3 230 VAC, 50/60 Hz 5.3
299464 M 1½" / F 1" x M 1½" DN 25 10.0 230 VAC, 50/60 Hz 5.5
396164 M 1½" / F 1" x M 1½" DN 25 6.3 230 VAC, 50/60 Hz 5.8 LK 950 (180759)
396165 M 1½” / F 1” x M 1½” DN 25 10.0 230 VAC, 50/60 Hz 6 LK 950 (180759)

299462

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Kvs m³/h 6.3
Voltage 230 VAC, 50/60 Hz
Weight (kg) 5.3
Note
Item list

299464

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Kvs m³/h 10.0
Voltage 230 VAC, 50/60 Hz
Weight (kg) 5.5
Note
Item list

396164

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Kvs m³/h 6.3
Voltage 230 VAC, 50/60 Hz
Weight (kg) 5.8
Note LK 950 (180759)
Item list

396165

Dim. M 1½” / F 1” x M 1½”
DN DN 25
Kvs m³/h 10.0
Voltage 230 VAC, 50/60 Hz
Weight (kg) 6
Note LK 950 (180759)
Item list
LK 861 H 125 DN 25 - Direct supply without pump

LK 861 H 125 DN 25 - Direct supply without pump 1 artikel

Article Dim. Voltage Weight (kg) Item List
299460 M 1½" / F 1" x M 1½" 230 VAC, 50/60 Hz 3.1

299460

Dim. M 1½" / F 1" x M 1½"
Voltage 230 VAC, 50/60 Hz
Weight (kg) 3.1
Item list
LK 862 H 125 DN 25 - Mixed supply, left version

LK 862 H 125 DN 25 - Mixed supply, left version 2 variants

Article Dim. DN Kvs m³/h Voltage Weight (kg) Item List
299461 M 1½" / F 1" x M 1½" DN 25 6.3 230 VAC, 50/60 Hz 5.3
299463 M 1½" / F 1" x M 1½" DN 25 10.0 230 VAC, 50/60 Hz 5.5

299461

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Kvs m³/h 6.3
Voltage 230 VAC, 50/60 Hz
Weight (kg) 5.3
Item list

299463

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Kvs m³/h 10.0
Voltage 230 VAC, 50/60 Hz
Weight (kg) 5.5
Item list
LK 862 H 125 DN 25 - Mixed supply without pump

LK 862 H 125 DN 25 - Mixed supply without pump 2 variants

Article Dim. DN Kvs m³/h Voltage Weight (kg) Item List
299465 M 1½" / F 1" x M 1½" DN 25 6.3 230 VAC, 50/60 Hz 3.1
299466 M 1½" / F 1" x M 1½" DN 25 10.0 230 VAC, 50/60 Hz 3.1

299465

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Kvs m³/h 6.3
Voltage 230 VAC, 50/60 Hz
Weight (kg) 3.1
Item list

299466

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Kvs m³/h 10.0
Voltage 230 VAC, 50/60 Hz
Weight (kg) 3.1
Item list
LK 863 H 125 DN 25 - Thermic mixing valve

LK 863 H 125 DN 25 - Thermic mixing valve 3 variants

Article Dim. DN Voltage Note Weight (kg) Item List
299467 M 1½" / F 1" x M 1½" DN 25 230 VAC, 50/60 Hz Temperature: 25 - 45 °C 5.8
299468 M 1½" / F 1" x M 1½" DN 25 230 VAC, 50/60 Hz Temperature: 25 - 45 °C 6
396243 M 1½” / F 1” x M 1½” DN 25 230 VAC, 50/60 Hz Temperature: 50 - 70 °C 6

299467

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Voltage 230 VAC, 50/60 Hz
Note Temperature: 25 - 45 °C
Weight (kg) 5.8
Item list

299468

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Voltage 230 VAC, 50/60 Hz
Note Temperature: 25 - 45 °C
Weight (kg) 6
Item list

396243

Dim. M 1½” / F 1” x M 1½”
DN DN 25
Voltage 230 VAC, 50/60 Hz
Note Temperature: 50 - 70 °C
Weight (kg) 6
Item list
LK 863 H 125 DN 25 - Thermic mixing valve, without pump

LK 863 H 125 DN 25 - Thermic mixing valve, without pump 2 variants

Article Dim. DN Voltage Note Weight (kg) Item List
299469 M 1½" / F 1" x M 1½" DN 25 230 VAC, 50/60 Hz Temperature: 25 - 45 °C 4
396507 M 1½” / F 1” x M 1½” DN 25 230 VAC, 50/60 Hz Temperature: 50 - 70 °C 4

299469

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Voltage 230 VAC, 50/60 Hz
Note Temperature: 25 - 45 °C
Weight (kg) 4
Item list

396507

Dim. M 1½” / F 1” x M 1½”
DN DN 25
Voltage 230 VAC, 50/60 Hz
Note Temperature: 50 - 70 °C
Weight (kg) 4
Item list
LK 864 H 125 DN 25 - Thermic loading valve

LK 864 H 125 DN 25 - Thermic loading valve 4 variants

Article Dim. DN Kvs m³/h Voltage Note Weight (kg) Item List
299470 M 1½" / F 1" x M 1½" DN 25 9.0 230 VAC, 50/60 Hz Opening temperature: 55 - 70 °C 5.7
299471 M 1½" / F 1" x M 1½" DN 25 9.0 230 VAC, 50/60 Hz Opening temperature: 55 - 70 °C 5.9
299787 M 1½" / F 1" x M 1½" DN 25 9.0 230 VAC, 50/60 Hz Opening temperature: 45 - 60 °C 5.7
299788 M 1½" / F 1" x M 1½" DN 25 9.0 230 VAC, 50/60 Hz Opening temperature: 45 - 60 °C 5.9

299470

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Kvs m³/h 9.0
Voltage 230 VAC, 50/60 Hz
Note Opening temperature: 55 - 70 °C
Weight (kg) 5.7
Item list

299471

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Kvs m³/h 9.0
Voltage 230 VAC, 50/60 Hz
Note Opening temperature: 55 - 70 °C
Weight (kg) 5.9
Item list

299787

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Kvs m³/h 9.0
Voltage 230 VAC, 50/60 Hz
Note Opening temperature: 45 - 60 °C
Weight (kg) 5.7
Item list

299788

Dim. M 1½" / F 1" x M 1½"
DN DN 25
Kvs m³/h 9.0
Voltage 230 VAC, 50/60 Hz
Note Opening temperature: 45 - 60 °C
Weight (kg) 5.9
Item list
LK 864 H 125 DN 25 - Thermic loading valve, without pump

LK 864 H 125 DN 25 - Thermic loading valve, without pump 1 artikel

Article Dim. DN Kvs m³/h Voltage Note Weight (kg) Item List
299962 M 1½” / F 1” x M 1½” DN 25 9.0 230 VAC, 50/60 Hz Opening temperature: 55 - 70 °C 3.5

299962

Dim. M 1½” / F 1” x M 1½”
DN DN 25
Kvs m³/h 9.0
Voltage 230 VAC, 50/60 Hz
Note Opening temperature: 55 - 70 °C
Weight (kg) 3.5
Item list
LK 865 H 125 DN 25- HWC

LK 865 H 125 DN 25- HWC 1 artikel

Article Dim. DN Voltage Note Weight (kg) Item List
299472 F 1" x M 1" DN 25 230 VAC, 50/60 Hz Opening temperature: 35 - 65 °C 4.9

299472

Dim. F 1" x M 1"
DN DN 25
Voltage 230 VAC, 50/60 Hz
Note Opening temperature: 35 - 65 °C
Weight (kg) 4.9
Item list
LK 865 H 125 DN 25 - HWC, without pump

LK 865 H 125 DN 25 - HWC, without pump 1 artikel

Article Dim. DN Voltage Note Weight (kg) Item List
299963 F 1" x M 1" DN 25 230 VAC, 50/60 Hz Opening temperature: 35 - 65 °C 2.7

299963

Dim. F 1" x M 1"
DN DN 25
Voltage 230 VAC, 50/60 Hz
Note Opening temperature: 35 - 65 °C
Weight (kg) 2.7
Item list
LK 866 H 125 DN 25 - 4-way mixing valve, LK 841

LK 866 H 125 DN 25 - 4-way mixing valve, LK 841 1 artikel

LK 866 - Pump group with a four way mixing valve, LK 841 ThermoMix®

Article Dim. DN Kvs m³/h Voltage Weight (kg) Item List
299747 M 1½" / F 1" x M 1" DN 25 6.3 230 VAC, 50/60 Hz 5.3

299747

Dim. M 1½" / F 1" x M 1"
DN DN 25
Kvs m³/h 6.3
Voltage 230 VAC, 50/60 Hz
Weight (kg) 5.3
Item list
LK 866 H 125 DN 25 - 4-way mixing valve, LK 841, without pump

LK 866 H 125 DN 25 - 4-way mixing valve, LK 841, without pump 1 artikel

Article Dim. DN Kvs m³/h Voltage Weight (kg) Item List
299964 M 1½" / F 1" x M 1" DN 25 6.3 230 VAC, 50/60 Hz 3.1

299964

Dim. M 1½" / F 1" x M 1"
DN DN 25
Kvs m³/h 6.3
Voltage 230 VAC, 50/60 Hz
Weight (kg) 3.1
Item list
LK 867 H 125 DN 25 - 4-way mixing valve, LK 830

LK 867 H 125 DN 25 - 4-way mixing valve, LK 830 1 artikel

Article Dim. DN Kvs m³/h Voltage Weight (kg) Item List
299765 M 1½" / F 1" x M 1" DN 25 6.3 230 VAC, 50/60 Hz 5.3

299765

Dim. M 1½" / F 1" x M 1"
DN DN 25
Kvs m³/h 6.3
Voltage 230 VAC, 50/60 Hz
Weight (kg) 5.3
Item list
LK 867 H 125 DN 25 - 4-way mixing valve, LK 830, without pump

LK 867 H 125 DN 25 - 4-way mixing valve, LK 830, without pump 1 artikel

Article Dim. DN Kvs m³/h Voltage Weight (kg) Item List
299965 M 1½" / F 1" x M 1" DN 25 6.3 230 VAC, 50/60 Hz 3.1

299965

Dim. M 1½" / F 1" x M 1"
DN DN 25
Kvs m³/h 6.3
Voltage 230 VAC, 50/60 Hz
Weight (kg) 3.1
Item list

Detailed Information

Description

LK HydronicGroup H 125 DN 25 is a complete pump group that is suitable for heating where direct supply or mixed supply is desirable. Consists of a highly efficient circulation pump, insulation, wall mounting bracket and two ball valves with thermometer, on the return side there is an integrated check valve.

LK 860 H 125 DN 25 manifold available with or without hydraulic separator for one, two, three optionally four pump groups. Wall mounting bracket are included with the manifold.

LK 861 H 125 DN 25 pump group where direct supply is desired.

LK 862 pump group where mixed supply is desired, a three-way mixing valve, LK 840 ThermoMix®, is included.

LK 863 H 125 DN 25 pump group where mixed supply is desired, a thermic mixing valve is included. The LK 551 HydroMix has a thermostatic element that regulates the supply and return to achieve the desired supply temperature.

LK 864 H 125 DN 25 pump group with a thermic loading valve LK 823 ThermoVar®. The pump group is intended to ensure both an optimal temperature stratification in the storge tank and high return temperature to the boiler, thus increasing the efficiency of the system.

LK 865 H 125 DN 25 is a complete unit for hot water circulation. Consists of a mixing valve, cross, circulation pump, insulation, connection kit and three check valves. The LK 551 HydroMix mixing valve has a thermostatic element that regulates the supply of both cold and hot water to the desired temperature. The valve has an anti-scald function that closes for incoming hot water if the cold water supply ceases.

LK 866 H 125 DN 25 is a pump group with a four way mixing valve, LK 841 ThermoMix®. The pumpgroup 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 867 H 125 DN 25 is a pump group with a four way mixing valve, LK 830 ThermoMix® B. The pump group has a 4-way bivalent mixing valve that is designed for heating systems, where energy is taken from two heating units connected in series or parallel or for storage tank systems where energy is extracted from two levels. The pump group should be equipped with an automatic control unit to ensure that the most favourable heat source is prioritised at all times.

Technical Data

Power consumption: 10-75 W depending on pump speed
Max. working pressure: 1.0 MPa (10 bar)
Working temperature: Min. 5 °C/Max. 95 °C
Ambient temperature: Min. 5 °C/Max. 58 °C
Thread standard: Rp - female thread, G - male thread
Media: Water - Glycol mixture max. 50%
Circulating pumps: Wilo Para 15-130/8-75/SC-9, Wilo Para 25-180/6-43/SC-12, Wilo Para 25-180/8-75/SC-12, Wilo Para zKu 15-130/8 SC, EEI ≤ 0.23 (see pump datasheet/label for exact value)
Material, valve body: Brass EN 12165 CW617N
Material, insulation: Expanded Polypropylene EPP

Application

LK HydronicGroup H 125 DN 25

LK 861 - Pump group with direct supply

LK HydronicGroup H 125 DN 25

LK 862 - Pump group with mixing valve

LK HydronicGroup H 125 DN 25

LK 863 - Pump group with mixing valve
LK 551 HydroMix

LK HydronicGroup H 125 DN 25

LK 864 - Pump group with thermic loading valve
LK 823 ThermoVar®

LK HydronicGroup H 125 DN 25

LK 865 - Complete unit for hot water circulation

LK HydronicGroup H 125 DN 25

LK 866 - Pump group with a four way mixing valve,
LK 841 ThermoMix®

LK HydronicGroup H 125 DN 25

LK 867 - Shuntgrupp med en fyrvägs shuntventil,
LK 830 ThermoMix® B

LK HydronicGroup H 125 DN 25

LK 861 Right - LK 861 Left

Technical Diagrams

LK HydronicGroup H 125 DN 25

LK 861 - Pump characteristics

LK HydronicGroup H 125 DN 25

LK 862 - Pump characteristics

LK HydronicGroup H 125 DN 25

LK 863 - Pump characteristics

LK HydronicGroup H 125 DN 25

LK 864 - Pump characteristics

LK HydronicGroup H 125 DN 25

LK 865 - Pump characteristics

LK HydronicGroup H 125 DN 25

LK 866 & LK 867 - Pump characteristics

Documentation

Product sheet

LK HydronicGroup H 125 DN 25

Instruction manual

861-862 LK HydronicGroup H/C 125 - Instruction_248405

Instruction manual

864 HydronicGroup 125_without pump - Instruction_248330

Instruction manual

867 HydronicGroup H 125_with pump - Instruction_248320

Instruction manual

866 HydronicGroup 125_with pump - Instruction_248321

Instruction manual

861-862 HydronicGroup 125_GF_UPM3 - Instruction_248331

Instruction manual

860 HydronicGroup 125 - Instruction_248345

Instruction manual

861-862 HydronicGroup 125_GF_Alpha - Instruction_248408

Certificate/Type approval

CE Declaration of Conformity - LK HydronicGroup H 90, H 125, H/C 125

Brochure

Pump Groups_ENG

Instruction manual

861-863 HydronicGroup H 125 - Instruction_248184

Instruction manual

865 HydronicGroup H 125 - Instruction_248186

Instruction manual

864 HydronicGroup H 125_with pump - Instruction_248185

Instruction manual

866 HydronicGroup H 125_without pump- Instruction_299747

Accessories & Spare parts

Article no. Article Position
187203 Wilo Para 25-180/8-75/SC-12 1
187322 Wilo Para 25-180/6-43/SC-12 1
187227 Wilo Para 15-130/8-75/SC-9 1
187346 Wilo Para zKu 15-130/8 SC 1
187323 Ball Valve, blue 2
187324 Ball Valve, red 2
187325 Bracket 3
187326 EPP Insulation 4
180588 LK 830 Mixing Valve (867), Kvs 6.3 5
182766 LK 840 ThermoMix® HG Kvs 6,3 5
182767 LK 840 ThermoMix® HG Kvs 10 5
181949 LK 841 Mixing Valve (866), Kvs 6.3 5
187188 Sealing kit 840/841 DN 25 6
187062 Repair kit 830, DN 15-20, Kvs 6.3 7
187195 Repair kit 841 2.0, DN 25 7
095349 Repair kit 551, 25 - 45 °C, Kvs 3.2-4.2 8
095350 Repair kit 551, 35 - 65 °C, Kvs 3.2-4.2 8
187330 Repair Kit 823R 9
182820 LK 551 (863), 50 - 70 °C 10

Videos

LK HydronicGroup C/C 125 - Function
LK HydronicGroup C/C 125 - 865 - Function
LK HydronicGroup C/C 125 - 866 - Function
LK HydronicGroupC/C 125 - 864 - Function
LK HydronicGroup C/C 125 - 867 - Function