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MUT - SF-3 Zone Valve | Motorized 3-Way | Micro + Spring Return | 5-Wire | Heating and Cooling

Mut  |  SKU: 7.001.01787
€84,90 €110,00 IVA INCLUSA
Prezzo più basso ultimi 30gg: €84,90
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Description

MUT SF-3 — Motorized 3-Way Zone Valve — Micro Auxiliary Switch + Spring Return — 5-Wire — 3/4'' or 1'' F/F/F — Heating and Cooling

The MUT SF-3 zone valve is a motorized 3-way ball valve, equipped with a micro auxiliary switch and spring return, for controlling the flow of hot and cold water in heating and cooling systems (in non-condensing environments). It works as a diverter valve: without power, path A is closed and path B is open (rest position guaranteed by the springs); with power, the actuator switches the ball in approximately 20 seconds. 5-wire electrical diagram with micro auxiliary switch for position signaling and boiler contactor control. Available in 3/4'' and 1'' F/F/F. Manual lever for positioning in the intermediate position during system charging/draining.

Key points:
  • 3-way ball valve — two operating positions, fast switching in ~20 seconds
  • Spring return — safety position guaranteed even in the absence of power
  • Micro auxiliary switch (5 wires) — valve position signaling and boiler contactor control
  • Manual lever — positioning in the intermediate position for system charging/draining
  • 2 variants — 3/4'' F/F/F and 1'' F/F/F
  • Applications — heating and cooling (non-condensing environment)
  • Installation — do not install with the motor cover facing downwards

Operation — 3-way logic with spring return

  • Rest position (without power — Fig.1): the return springs keep the ball valve in the default position — path A closed, path B open. The fluid circulates towards the boiler return. This position is guaranteed even in the event of a power outage
  • Active position (with power — Fig.2): the actuator overcomes the force of the springs and moves the ball from path A to path B in about 20 seconds, opening the heating zone. The position is maintained as long as power is present
  • Automatic return: upon removal of power, the return springs automatically return the ball to path A (rest position) without the need for a reverse electrical pulse
  • Micro auxiliary switch: actuated during switching, it signals the valve position and can be used to control the boiler contactor (5-wire diagram)

Manual lever — use and function

  • Position: on the side of the actuator
  • Function: allows manually positioning the ball in an intermediate position (Fig.3), useful during the draining and charging phases of the hydraulic system
  • Automatic reset: when the valve is electrically activated, the lever automatically returns to the automatic position without manual intervention

Available variants

Version SKU EAN
3/4'' F/F/F 7.001.01787 8054701820230
1'' F/F/F 7.001.01827 8054701820261

Technical data

Brand MUT
Series SF-3
Type Motorized 3-way zone valve with spring return
Actuator Ball
Available connections 3/4'' F/F/F — 1'' F/F/F
Electrical diagram 5 wires (with micro auxiliary switch)
Micro auxiliary switch Yes — auxiliary, actuated during switching
Spring return Yes — rest position guaranteed without power
Switching time ~20 seconds
Manual lever Yes — intermediate position, automatic reset
Application Heating and cooling (non-condensing environment)
Estimated weight ~800 g
Country of origin Italy

Typical applications

  • Zoned heating systems: the zone room thermostat controls the opening and closing of the SF-3 valve. When there is no demand, the valve closes the zone and recirculates the water towards the boiler return
  • Cooling systems (non-condensing): control of the cold water flow in the cooling zones
  • Systems with boiler contactor: the micro auxiliary switch (5 wires) allows the boiler contactor to be controlled rationally, starting the boiler only when at least one zone is open
  • Fan coil systems: flow diversion between the supply and return circuits
  • Mixed heating/cooling systems: switching between the two modes via the diverter valve
Installation notes:
  • Installation with the motor cover facing downwards is prohibited — potential collector of leaks or water condensation that could damage the actuator
  • Balance the pressure drops in the recirculation pipe to avoid excessive flow variations in the other circuits during valve operation
  • Non-condensing environment — not suitable for applications with a risk of condensation on the valve body

Official MUT documentation


Frequently Asked Questions (FAQ)

Q: What is the difference between the SF-3 and a 2-way valve?
A: The 2-way valve opens or closes a single circuit. The 3-way SF-3 is a diverter valve: when it closes the heating zone (path A), it automatically opens the recirculation circuit towards the boiler return (path B), always maintaining circulation in the primary circuit. This prevents the circulation pump from locking and ensures the optimal operation of the boiler.

Q: What does a 5-wire diagram mean?
A: The 5 wires are: power supply (phase and neutral for the actuator), plus 3 wires from the micro auxiliary switch (common, normally open, normally closed). The micro switch signals the valve position and is typically used to control the boiler contactor, starting it only when at least one zone valve is open.

Q: What happens in the event of a power outage?
A: Thanks to the spring return, the valve automatically returns to the rest position (path A closed, path B open — recirculation towards the boiler) without the need for power. It is the safety position that guarantees circulation in the primary circuit even without power.

Q: Which variant should I choose between 3/4'' and 1''?
A: The choice depends on the diameter of the system piping. 3/4'' (SKU 7.001.01787) for 3/4-inch pipes, 1'' (SKU 7.001.01827) for 1-inch pipes. Check the diameter of the existing pipes before purchasing.


3-way zone valve | MUT SF-3 | motorized spring return | 5-wire micro auxiliary | 3/4'' 1'' F/F/F | heating cooling

MUT: Italian valves and hydraulic components for heating and cooling systems.

Security Information

Data about the Person Responsible for the Product: MUT MECCANICA TOVO SPA - Via bivio San Vitale - 36075 Montecchio Maggiore (VI)

Contact Person Responsible for the Product: Tel. +39 044 491744 - E-mail: mut@mutmeccanica.com

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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Mut

MUT - SF-3 Zone Valve | Motorized 3-Way | Micro + Spring Return | 5-Wire | Heating and Cooling

€84,90 €110,00 IVA INCLUSA
MUT SF-3 — Motorized 3-Way Zone Valve — Micro Auxiliary Switch + Spring Return — 5-Wire — 3/4'' or 1'' F/F/F — Heating and Cooling The MUT SF-3 zone valve is a motorized 3-way ball valve, equipped with a micro auxiliary switch and spring return, for controlling the flow of hot and cold water in heating and cooling systems (in non-condensing environments). It works as a diverter valve: without power, path A is closed and path B is open (rest position guaranteed by the springs); with power, the actuator switches the ball in approximately 20 seconds. 5-wire electrical diagram with...
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