# Expansion Vessel Quick Coupling 3/4" FERRO SN01

**URL:** https://aio.lv/en/product--ferro-sn01--11829298
**Data updated:** 2026-03-09 14:38 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** FERRO
**Manufacturer code:** SN01
**EAN:** 5902194918220
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.49 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 12.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ferro-sn01--11829298

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Quick coupling for expansion (diaphragm) vessels with a 3/4" connection, model SN01 by FERRO. Designed to connect or disconnect a domestic or commercial expansion vessel quickly and securely. Suitable for heating and hot water systems where a 3/4" threaded interface is required. Facilitates maintenance and replacement of expansion tanks without draining the system.

## Long description

The FERRO Expansion Vessel Quick Coupling 3/4" SN01 is a threaded quick coupling designed for diaphragm expansion vessels with a 3/4" connection. It provides a secure, detachable interface between the expansion vessel and the system piping to simplify maintenance and replacement without draining the heating or hot water system. The coupling is compatible with domestic and light commercial installations where a 3/4" threaded connection is used.
Advantages
This quick coupling enables fast connection and disconnection of expansion vessels, reducing downtime during maintenance. It ensures a reliable seal at the 3/4" threaded interface to minimise leakage risk. The design supports routine servicing of heating and hot water systems by allowing vessel replacement without system depressurisation, saving time and reducing labour. The coupling is suitable for repeated use and contributes to cleaner, safer maintenance procedures.
Suitable for
Domestic central heating systems with a 3/4" expansion vessel connection
Small commercial heating or hot water installations
Maintenance and replacement of diaphragm expansion tanks
Situations where draining the system should be avoided or minimised
Key specifications
Connection size: 3/4" threaded interface
Type: quick coupling for expansion (diaphragm) vessels
Intended application: heating and hot water systems
Installation: removable/plug-in coupling for rapid vessel exchange
Compatibility: designed for use with standard 3/4" expansion vessel ports
How to use
Shut off any necessary valves and isolate the expansion vessel location according to system procedures. Align the coupling with the vessel's 3/4" threaded port and engage the threaded connection until secure. If the system design includes an integrated shut-off feature on the coupling, ensure it is in the closed position before disconnection. For removal, close isolation valves, release any residual pressure per safety protocols, and unscrew the coupling to detach the vessel. Follow any additional installer or system manufacturer instructions for pressure handling and sealing.
Usage recommendations
Verify thread compatibility and inspect sealing surfaces before installation. Use appropriate sealing material where required by the system manufacturer and tighten to recommended torque values. Perform pressure checks after installation and monitor for leaks during initial operation. If uncertain about compatibility or installation steps, consult a qualified heating engineer.

## FAQ

### How much does the Quick Coupling 3/4" FERRO SN01 cost, and is it available for purchase?

The price is 15.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 18 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All FERRO products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized FERRO service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11829298/67230148_large.webp