Optimize, protect and regulate your property's heating and tap water systems with high-quality technical fittings from LK at Velltra. Maintaining safe and energy-efficient system operation requires mechanical components that can handle pressure changes, control fluid temperatures and facilitate smooth maintenance. LK's extensive range of technical fittings offers everything from robust safety valves and smart filling combinations to precise mixing and shunt valves for optimal flow control. Made of durable and corrosion-resistant materials, these components guarantee the highest operational reliability and long service life in demanding HVAC environments. Explore our type-approved range online for a safe and professional installation.
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LK 551 HydroMix Mixing Valve Rp20 Internal Thread
LK 551 HydroMix is a mixing valve for hot water preparation, the valve has a thermal insert that regulates the supply of both cold and hot water.
4920001
139.1EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 556 AntiFreeze Insulation G25/G32
Developed to provide effective protection against energy losses, the insulation's closing function makes installation quick and easy.
5075016
16.3EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 556 AntiFreeze Valve G25 Safety Valve
Protects your heating system, usually in an air/water heat pump, if the temperature of the medium should drop below +3°C by draining the system.
5075014
91.1EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 556 AntiFreeze Valve G32 Safety Valve
Protects your heating system, usually in an air/water heat pump, if the temperature of the medium should drop below +3°C by draining the system.
5075015
82.8EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 680 Spare Parts Kit
Intended for LK 550 Mixing Valve dimensions 15mm and 22mm (old model) and for LK 540 Mixing Valve.
4920721
72.1EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 683 Spare Parts Kit
Intended for LK Mixing valve 545, 550-15mm and 22mm and LK Mixing valve part 541 and 549.
4920723
41.6EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 684 Spare Parts Kit For Shut-Off Part/Valve Pipe
Intended for LK Shut-off Part/Valve Pipe 508, 509, 548 and 560 in dimensions 15 and 22 mm.
4311733
36.1EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 685 Spare Parts Kit For Filling Valve
Intended for LK 535 Filling Valve and LK 536 Filling Valve in the old version.
4311739
29.9EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 688 Spare Parts Kit
Intended for LK 560 Mixing valve dimension 15mm.
4920722
45.5EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 700 AeroMat Air Vent Valve Float Air Vent
LK 700 AeroMat are air vent valves with free-floating float for automatic air venting of heating and cooling systems.
4845228
187.5EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 740 Float Air Vent
Bottom-connected float air vent for venting heating systems. The air vent is supplied with an automatic shut-off valve in brass.
4845232
24.1EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 755 Air Vent Valve G10
For manual venting of heating systems, the air vent is made of brass and is internally O-ring sealed.
4841227
9.1EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 755 Air Vent Valve G8
For manual venting of heating systems, the air vent is made of brass and is internally O-ring sealed.
4841219
8.3EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 810 ThermoMat 2.0 G Eco Charging Package
LK 810 ThermoMat 2.0 G Eco is a charging package for connecting biofuel boilers with storage tank systems.
6229003
567.4EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 815 ThermoKit Charging Package G40 60°C
Charging group for connecting biofuel boilers with accumulator systems, LK 815 ThermoKit consists of a low-energy pump.
6229023
806.0EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 815 ThermoKit Charging Package G40 65°C
Charging group for connecting biofuel boilers with accumulator systems, LK 815 ThermoKit consists of a low-energy pump.
6229024
806.0EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 815 ThermoKit Charging Package G40 70°C
Charging group for connecting biofuel boilers with accumulator systems, LK 815 ThermoKit consists of a low-energy pump.
6229025
806.0EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 830 ThermoMix B Shunt Valve 15mm Clamp Connection 4m³/h
LK 830 ThermoMix B 4-way bivalent shunt valve is intended for heating systems with two energy sources.
4905576
114.6EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 830 ThermoMix B Shunt Valve 22mm Clamp Connection 4m³/h
LK 830 ThermoMix B 4-way bivalent shunt valve is intended for heating systems with two energy sources.
4905577
124.4EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 4 till 10 vardagar
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LK 830 ThermoMix B Shunt Valve 22mm Clamp Connection 6.3m³/h
LK 830 ThermoMix B 4-way bivalent shunt valve is intended for heating systems with two energy sources.
4905578
102.3EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 830 ThermoMix B Shunt Valve 28mm Clamp Connection 6.3m³/h
LK 830 ThermoMix B 4-way bivalent shunt valve is intended for heating systems with two energy sources.
4905579
142.3EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 830 ThermoMix B Shunt Valve G20 External Thread 4m³/h
LK 830 ThermoMix B 4-way bivalent shunt valve is intended for heating systems with two energy sources.
4905572
98.3EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 830 ThermoMix B Shunt Valve G20 External Thread 6.3m³/h
LK 830 ThermoMix B 4-way bivalent shunt valve is intended for heating systems with two energy sources.
4905573
98.3EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 830 ThermoMix B Shunt Valve G20 Internal Thread 6.3m³/h
LK 830 ThermoMix B 4-way bivalent shunt valve is intended for heating systems with two energy sources.
4905570
110.3EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
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LK 830 ThermoMix B Shunt Valve G25 External Thread 6.3m³/h
LK 830 ThermoMix B 4-way bivalent shunt valve is intended for heating systems with two energy sources.
4905574
98.3EUR / pc.Add to favorites- Stock status
- Lev. normalt inom ca 1 till 5 vardagar
Our components under LK technical fittings are characterized by their precise mechanical function and high reliability during continuous operation. In the range you will find the necessary valves for a safe pipe system.
- Reliable safety valves: Important protective components equipped with color-coded knobs that automatically relieve the system in the event of any pressure increases.
- Smart combination and filling valves: Functional units, partly delivered in protective insulating casings, designed for smooth filling and flow management.
- Practical ball valves with filter function: Versatile shut-off valves equipped with robust handles in contrasting colors that effectively stop the flow and protect against particles.
- Precise mixing and shunt valves: High-performance thermal valves with adjustable regulators for precise temperature mixing in heating and hot water loops.
When you shop at Velltra, you not only get access to the market's best brands, but also to products that keep their promises. We make it easy, safe and affordable to renew your home with the right plumbing and ventilation solutions. Find your products for LK technical fittings with us at Velltra today and take advantage of fast deliveries and Swedish quality!