Read the information document regarding the minimum two-year legal warranty provided in the European Union.
VAREM - Extravarem Multifunction Expansion Vessel 8 L | 3/4" F | 8 bar | Fixed Diaphragm | Stainless Steel
VAREM - Extravarem Multifunction Expansion Vessel 8 L | 3/4" F | 8 bar | Fixed Diaphragm | Stainless Steel is backordered and will ship as soon as it is back in stock.
Description
Description
VAREM Extravarem — 8-Liter Multifunction Expansion Vessel — 3/4" Male Fitting — Max Pressure 8 bar — Pre-charge 3.5 bar — Fixed Diaphragm — Stainless Steel Flange
The 8-liter VAREM Extravarem multifunction expansion vessel is the Italian professional solution for managing volume variations in hydraulic systems. Thanks to its fixed diaphragm and crimped stainless steel flange, it is suitable for a wide range of applications: hot and cold domestic water, heating, boilers, anti-water hammer protection, and electric pump protection. 3/4" male fitting, maximum pressure 8 bar, pre-charge 3.5 bar. Compact dimensions: 200 x 330 mm. Made in Italy by VAREM, Europe's leading manufacturer of expansion vessels.
- 8-liter capacity — suitable for domestic and small professional systems
- 3/4" male fitting — standard connection for hydraulic systems
- Maximum pressure 8 bar
- Pre-charge 3.5 bar — adjustable to meet system requirements
- Fixed diaphragm — for hot/cold domestic water, heating, and boilers
- Crimped stainless steel flange — corrosion resistance and long service life
- Dimensions: Ø200 x H330 mm
- SKU: R1008223S4 | EAN: 8034108701561 | Made in Italy
Main features
- Multifunction fixed diaphragm: the fixed diaphragm separates the gas (nitrogen) from the water, absorbing volume changes caused by temperature fluctuations. The multifunction version is approved for hot and cold domestic water, heating, and boilers — a single product for multiple applications
- Crimped stainless steel flange: the crimping system ensures a durable, airtight seal between the two halves of the vessel. Stainless steel protects against corrosion even when used with chemically treated domestic water
- Adjustable 3.5 bar pre-charge: the pre-charge pressure can be adjusted using the Schrader valve to suit the system's specifications. Proper pre-charge is essential for the vessel to function correctly
- Standard 3/4" male fitting: universal connection compatible with most domestic and professional hydraulic systems. In most cases, it allows for quick installation without adapters
- Anti-water hammer protection: absorbs pressure spikes caused by the rapid closing of valves and faucets, protecting pipes and system components
- Electric pump protection: reduces electric pump start/stop cycles, extending their service life and reducing energy consumption
Technical data
| Model (SKU) | R1008223S4 |
| EAN / Barcode | 8034108701561 |
| Brand | VAREM |
| Series | Extravarem |
| Type | Multifunction fixed-diaphragm expansion vessel |
| Capacity | 8 liters |
| Fitting | 3/4" male |
| Maximum pressure | 8 bar |
| Pre-charge | 3.5 bar (adjustable) |
| Diaphragm | Fixed |
| Flange | Crimped stainless steel |
| Diameter | Ø200 mm |
| Height | 330 mm |
| Estimated weight | ~1.5 kg |
| Country of origin | Italy |
Applications
- Hot and cold domestic water: protects domestic water systems from pressure fluctuations caused by thermal expansion
- Heating systems: compensates for water volume changes in radiator or underfloor heating circuits
- Boilers and water heaters: protects against overpressure caused by water heating in electric boilers and water heaters
- Anti-water hammer protection: absorbs pressure spikes caused by the rapid closing of valves and faucets
- Electric pump protection: reduces start/stop cycles to extend pump life and reduce energy consumption
- Before installation, check that the vessel's pre-charge (3.5 bar) is suitable for the system's static pressure
- Always install with the fitting facing downward to ensure the diaphragm functions correctly
- Do not exceed the maximum operating pressure of 8 bar
- For heating systems, check that the diaphragm is compatible with the antifreeze used
Frequently Asked Questions (FAQ)
Q: What is the difference between a fixed diaphragm and a replaceable diaphragm?
A: A fixed diaphragm is integrated into the vessel and cannot be replaced. It is the most economical and compact solution. A replaceable diaphragm allows maintenance without replacing the entire vessel and is preferable for professional systems with scheduled maintenance.
Q: How do you adjust the pre-charge?
A: The pre-charge is adjusted using the Schrader valve (similar to a tire valve) located on top of the vessel. Use a pressure gauge and inflation pump to bring the pressure up to the desired value. The correct pre-charge is generally equal to the system's static pressure.
Q: Is it suitable for systems with antifreeze?
A: Check that the diaphragm is compatible with the type of antifreeze used in the system. Contact VAREM for specific information on chemical compatibility.
Q: Can I use it for both domestic water and heating?
A: Yes. The Extravarem version is multifunction: approved for hot and cold domestic water, heating, and boilers. A single product for multiple applications.
VAREM - Extravarem 8 L Multifunction Expansion Vessel | 3/4" M | 8 bar | Fixed Diaphragm | Stainless Steel
VAREM: Europe's leading manufacturer of expansion vessels. Made in Italy.
Security Information
Security Information
Data about the Person Responsible for the Product: VAREM SPA - Via Sabbioni, 2 - 35024 Bovolenta Padova Italy
Contact Person Responsible for the Product: Tel. +39 049 8840322 - Email. varem@varem.com
Product Safety Document:
Warranty
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:
- Call us at 376 0343302
- Write to us at info@jicomputer.com
- Complete the contact form
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.
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
Shipments
Shipping Details
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
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
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:
-
Place your order on Bricohome by selecting bank transfer as your payment method.
-
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.
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Please wait for your request to be processed. We will issue an invoice and send you bank transfer instructions within 48 business hours.
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Make the transfer following the instructions received.
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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

