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LK ARMATUR - Thermostatic Mixer 3/4'' LK 551 HydroMix | 35–65 °C | Fittings and Check Valves

LK ARMATUR  |  SKU: 181454
€89,90 €99,50 IVA INCLUSA
Prezzo più basso ultimi 30gg: €84,90

Description

LK 551 HydroMix: water temperature under control

The LK ARMATUR LK 551 HydroMix 3/4'' thermostatic mixer mixes hot and cold water to achieve the desired outlet temperature. The configuration described includes fittings and non-return valves and a setting range of 35–65 °C. It is intended for domestic water and heating systems; in solar thermal systems, compatibility must be verified based on the actual temperatures at the installation point.

Quick specifications:
  • Model: LK 551 HydroMix
  • Declared size: 3/4''
  • Mixed water setting: 35–65 °C
  • Contents: fittings and non-return valves
  • Anti-scald function: hot water flow shut-off in case of cold water interruption, under the conditions specified by the manufacturer
  • Declared maximum pressure: 10 bar

Main features

  • Thermostatic control: the thermostatic element regulates the mixing to the set value.
  • Asymmetrical valve: the inlets and outlet are identified by the letters C, H and M.
  • Control knob: allows you to select the temperature within the specified range.
  • Protective cover: helps prevent accidental changes to the setting.
  • Non-return valves: included in the configuration along with the fittings.
  • Installation check: periodic checks of correct operation are recommended.

Technical data

Brand LK ARMATUR
Model LK 551 HydroMix
SKU 181454
Barcode present in catalog 092053, type not specified
Declared nominal size 3/4''; check the geometry and threads of the provided configuration
Mixed water setting 35–65 °C, according to the configuration description
Maximum operating pressure 1.0 MPa / 10 bar
Declared temperature stability ±3 °C
Inlets / outlet C: cold water; H: hot water; M: mixed water
Operating temperature range Minimum 5 °C; maximum 65 °C or 95 °C depending on the version. Check the limit of the specific configuration before installation.

Materials and range compatibility

Valve body The range documentation reported in the catalog indicates EN 12165 CW617N brass or DZR EN 12165 CW625N brass, depending on the version.
Fluids indicated for the range Water; water-glycol up to 50%; water-ethanol up to 30%. Check the compatibility and intended use of the specific version; the mixtures are not domestic water.
Threads indicated for the range Rp female / G male according to the configuration, not a declaration of the presence of both on this kit.

Contents

  • LK 551 HydroMix thermostatic mixer
  • Connection fittings and non-return valves, according to the configuration described in the catalog.

Applications

  • Domestic water: mixed water temperature regulation according to the system requirements.
  • Heating systems: mixing in circuits compatible with the installed version.
  • Solar thermal: use at the point of the system compatible with the valve limits; do not assume suitability for the primary circuit or stagnation temperatures.
Installation and warnings: respect the flow arrows and C/H/M connections. When mounting on a boiler or storage tank, the manufacturer's description requires a spacer pipe and protection from radiant heat. Have a qualified installer check the temperatures, pressures, flow rates, and fitting compatibility. The anti-scald function does not make any set temperature safe: an outlet at 65 °C can cause burns. Check the actual temperature at the outlets and the periodic operation of the system.

Official documentation

LK 551 HydroMix manufacturer page and range documentation


Product video

Frequently Asked Questions (FAQ)

Q: What is the setting range?
A: For the configuration described in the catalog, it is 35–65 °C. Do not confuse this range with the maximum allowed inlet temperature.

Q: Are fittings and non-return valves included?
A: Yes, the configuration is described with connection fittings and non-return valves.

Q: What do C, H and M indicate?
A: C is the cold inlet, H is the hot inlet and M is the mixed water outlet. Also follow the arrow on the body.

Q: Is it suitable for any solar thermal system?
A: No, the installer must check the circuit of use and the limits of the specific version. The range data report different maximum temperatures and materials.

LK ARMATUR - LK 551 HydroMix 3/4'' Thermostatic Mixer | 35–65 °C | Fittings and Non-Return Valves

LK ARMATUR: solutions for the regulation of hydronic systems.

Security Information

Data about the Person Responsible for the Product: Tecno Sales Agency srl Via Linguetta, 10C - 60027 Osimo (AN) - ITALY

Contact Person Responsible for the Product: Tel. +39 071.7223426

Product Safety Document:

Warranty

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At BricoHome, we are committed to offering you high-quality products, aware that your peace of mind goes beyond a simple transaction. To ensure your complete satisfaction, we have implemented a robust warranty policy, demonstrating our commitment to quality and reliability.

In this section you will find information about our product warranty. We want you to be well-informed and confident in your choice, so we invite you to carefully read the warranty information. Our goal is to ensure you have a worry-free shopping experience, with the certainty that, if necessary, we are here to support you at all times.

Please contact us for any warranty request:


Please specify: first and last name, order ID, brand, product, and issue. We will look for the fastest solution for you and contact the brands as necessary.

Read the information document regarding the minimum two-year legal warranty provided in the European Union.


PRODUCT WARRANTY (STANDARD)
The warranty period is 12 months from the product purchase date for consumers who have an invoice. It is 24 months for those who have a receipt or other proof of purchase. 


PRODUCT WARRANTY WITH SEAL
For sealed products (e.g., insecticide), the warranty does not apply once opened. However, if the seal remains intact, you are entitled to a free return within 30 days.

Shipments

Shipping Details

Brico Home Ferramente ships exclusively via express courier. Orders are processed and shipped within 24 hours of placing an order on the website if placed on weekdays.

Shipments are made via the following couriers

When ordering, you can enter your shipping preferences in the notes section, choosing the desired courier.

Shipping Costs:

- Italy area (except Sardinia)

  • Standard shipping (€6.90), FREE for orders over €99
  • Priority shipping (€9.90), reduced cost to (€3.90) for orders over €99


- Italy area (Sardinia only)

  • Standard shipping (€10.90), FREE for orders over €99


- Eurozone 1 (Austria, Belgium, Croatia, Czechia, Denmark, France, Hungary, Luxembourg, Netherlands, Poland, Slovenia, Spain, Germany)

  • Standard shipping (€19.99)


- Eurozone 2 (Romania)

  • Standard shipping (€24.95)

Shipping times:

  • 24/48 WORKING HOURS FOR NORTHERN AND CENTRAL ITALY;
  • 48/72 HOURS FOR SARDINIA AND MINOR ISLANDS;
  • 24 WORKING HOURS FOR SOUTHERN ITALY INCLUDING SICILY;

Returns are always guaranteed and FREE, within 30 days of purchase.

 

Free returns

In any case, the consumer buyer has the right to withdraw from the contract without penalty and without specifying the reason within 30 days of receiving the purchased goods . If the withdrawal occurs within this period, we will arrange for the collection of the goods by courier at our expense , without the customer having to take any action. The customer must provide us with a date and time slot of at least 3-4 business hours , so we can schedule the collection at a convenient time.

- Refunds (if applicable)

Once we receive your return, we will carry out all necessary checks, verifying various aspects: such as the presence of the original box, the presence of any accessories or parts included, any damage not present in the original new product, etc. If your request is approved, the refund will be processed and a credit will automatically be applied to your card or original payment method. within 5 working days.

- Changes (if applicable)
We only replace items if they are defective or damaged.

In the event that the Consumer decides to exercise the right of withdrawal within the timeframes indicated above, you must notify the seller of this By email to info@jicomputer.com, or by completing the easy return form by clicking here.

If your return request exceeds 30 days, please provide as many details as possible so we can better assess the situation. Please note that in this case, the customer will be responsible for the return shipping costs.

Tax Deductions

A guide to purchasing with tax deductions and reduced VAT on Bricohome
If you're purchasing products for renovations, home improvements, or for specific needs, you may be eligible for significant tax breaks. Find out how to access these benefits and make your purchases even more affordable.


Who is entitled to it?
Tax breaks and reduced VAT are reserved for:
- Private citizens carrying out building renovation or energy efficiency improvement work;
- Condominiums for work on common areas;
- Companies and professionals who carry out specific interventions;

Which products are eligible for the discounts?
Not all products are eligible for tax relief. Generally , tax relief applies to materials and devices used for renovation, energy efficiency, and architectural barrier removal projects. To check the suitability of a specific product , we recommend that you consult the current legislation or contact our customer service.

On Bricohome, the most popular product categories eligible for the discounts include: Electric pumps, Pressure controls, Taps, Thermostats, Control units, Circulators, Intercoms and video intercoms.

Reduced VAT rates
Depending on the type of intervention, different VAT rates apply:
- 4% for the construction or purchase of a first home (if eligible).
- 10% for extraordinary maintenance, restoration, or renovation work.
- 22% for all products not subject to tax relief.


How to apply for the discount on Bricohome

To obtain the reduced VAT, it is necessary to:

  1. Place your order on Bricohome by selecting bank transfer as your payment method.

  2. Send a request to ......... with the subject line: "Tax deduction request for order ..." (the order number will arrive a few seconds after confirming the order on the website). Specify and provide the following information:

    - Name

    - Surname

    - Address

    - Telephone

    - Tax ID code

    - Type of deduction

    - Reference protocol number

    - Attach a copy of your identity document

    - Attach documents certifying your eligibility to meet the requirements.

  3. Please wait for your request to be processed. We will issue an invoice and send you bank transfer instructions within 48 business hours.

  4. Make the transfer following the instructions received.

  5. Once payment is received, we will proceed with the shipment of the goods.

Doubts or questions?
Write to us at info@jicomputer.com
Call us at +39 376 0343302

Do you need help?
Call us on 376 0343302

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Copertina miscelatore termostatico LK con raccordi
LK ARMATUR

LK ARMATUR - Thermostatic Mixer 3/4'' LK 551 HydroMix | 35–65 °C | Fittings and Check Valves

€89,90 €99,50 IVA INCLUSA
LK 551 HydroMix: water temperature under controlThe LK ARMATUR LK 551 HydroMix 3/4'' thermostatic mixer mixes hot and cold water to achieve the desired outlet temperature. The configuration described includes fittings and non-return valves and a setting range of 35–65 °C. It is intended for domestic water and heating systems; in solar thermal systems, compatibility must be verified based on the actual temperatures at the installation point. Quick specifications: Model: LK 551 HydroMix Declared size: 3/4'' Mixed water setting: 35–65 °C Contents: fittings and non-return valves Anti-scald function: hot water flow shut-off in case of cold water interruption, under the...
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