Read the information document regarding the minimum two-year legal warranty provided in the European Union.
Pedrollo - Expansion Tank 1SF | 1/2" M | 1 Liter | 10 bar | Fixed Diaphragm | For Multi Tech Top
Pedrollo - Expansion Tank 1SF | 1/2" M | 1 Liter | 10 bar | Fixed Diaphragm | For Multi Tech Top is backordered and will ship as soon as it is back in stock.
Description
Description
Pedrollo 1SF - Expansion Tank - 1/2" M Connection - 1-Liter Volume - Max Pressure 10 bar - Fixed Diaphragm - For Top Multi Tech and Top Multi Tech 2 Pumps
The Pedrollo 1SF Expansion Tank is the original accessory designed for installation on automatic submersible electric pumps in the Top Multi Tech and Top Multi Tech 2 series. Its main function is to reduce frequent pump restarts and eliminate water hammer in the water system. The fixed diaphragm separates the air chamber from the water chamber, maintaining a pressure reserve that prevents the pump from restarting every time there is a small demand for water. 1/2" male connection, 1-liter working volume, maximum pressure of 10 bar. Original Pedrollo product, Made in Italy.
1/2" M Connection - 1-Liter Volume - Max Pressure 10 bar - Fixed Diaphragm - For Top Multi Tech / Top Multi Tech 2 - Made in Italy.
Technical Data
| Model | 1SF |
| Brand | Pedrollo |
| SKU | 50057005 |
| EAN | 8052230094252 |
| Connection | 1/2" Male (M) |
| Hydrostatic Volume | 1 Liter |
| Maximum Pressure | 10 bar |
| Diaphragm Type | Fixed (non-replaceable) |
| Compatibility | Pedrollo Top Multi Tech / Top Multi Tech 2 |
| Country of Origin | Italy (Made in Italy) |
Why Install an Expansion Tank
| PROBLEM | SOLUTION WITH 1SF EXPANSION TANK |
| Frequent Restarts | The air reserve maintains pressure between withdrawals, preventing the pump from starting for small demands |
| Water Hammer | The air chamber cushions sudden pressure fluctuations in the system |
| Premature Pump Wear | Fewer on/off cycles = less wear on the motor and mechanical components |
| System Noise | Reduces noise caused by pressure fluctuations in the pipes |
Compatibility and Applications
- Pedrollo Top Multi Tech - Original accessory for the Top Multi Tech series
- Pedrollo Top Multi Tech 2 - Compatible with the updated version of the series
- Residential Water Systems - Reduces restarts for home systems with frequent and intermittent withdrawals
- Irrigation Systems - Protects the pump from closely spaced on/off cycles during zoned irrigation
- Wells and Cisterns - Stabilizes pressure in systems with automatic submersible pumps
Frequently Asked Questions (FAQ)
Q: What does a fixed diaphragm mean?
A: The fixed diaphragm is welded or integrated into the tank body and cannot be replaced if it fails. Unlike tanks with replaceable diaphragms, if the diaphragm fails, the entire tank must be replaced. For a 1-liter volume, this solution is the most compact and economical.
Q: Do I need to precharge it with air before installation?
A: Small fixed-diaphragm tanks like the 1SF are generally precharged at the factory. Check the precharge pressure indicated in the Top Multi Tech pump manual and, if necessary, adjust it using the Schrader valve before installing it with the system drained.
Q: Is it only compatible with Top Multi Tech pumps?
A: The 1SF is the original Pedrollo accessory designed specifically for Top Multi Tech and Top Multi Tech 2 pumps. The 1/2" M connection is a common standard, but optimal mechanical and hydraulic compatibility is guaranteed with pumps in the Top Multi Tech series. For other Pedrollo or other brand pumps, check the compatibility of the connection and maximum pressure.
Q: How many restarts does it actually eliminate?
A: A 1-liter tank significantly reduces micro-restarts caused by small withdrawals (e.g., leaks in faucets, toilet flushing, sink use). For systems with very frequent withdrawals or high flow rates, larger volume tanks offer more effective protection. The 1-liter volume is ideal for pairing with compact pumps in the Top Multi Tech series.
Pedrollo 1SF - 1L Expansion Tank - 1/2" M Connection - 10 bar - Fixed Diaphragm - For Top Multi Tech - Made in Italy
Pedrollo: original accessories for maximum reliability and longevity of your water system.
Security Information
Security Information
Data about the Person Responsible for the Product: Pedrollo SpA - Via E. Fermi 7, 37047 San Bonifacio (VR) Italy
Contact Person Responsible for the Product: E-mail: info@pedrollo.com - Tel. +39 045 6136311
Product Safety Document:
Warranty
Warranty
.
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.
-
Please wait for your request to be processed. We will issue an invoice and send you bank transfer instructions within 48 business hours.
-
Make the transfer following the instructions received.
-
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



