# Expansion Vessel Reflex solar S 33 1.5/10 bar red up to 70°C

**URL:** https://aio.lv/en/product--reflex-8706200--12018795
**Data updated:** 2026-03-11 20:53 (EET)
**Category:** Solar Panel Accessories
**Manufacturer:** Reflex
**Manufacturer code:** 8706200
**EAN:** 4036705109942
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 105.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 87.18 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--reflex-8706200--12018795

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

Reflex solar S 33 is a red expansion vessel designed for solar and closed heating circuits. Model S 33 has a 1.5 l pre-charge and is rated for 10 bar maximum pressure and temperatures up to 70°C. It absorbs thermal expansion in solar installations, protects system components from overpressure, and stabilizes circuit pressure during heating cycles.

## Long description

Reflex solar S 33 is a red expansion vessel engineered for solar and closed heating circuits. With a 1.5 l factory pre-charge, a maximum working pressure of 10 bar and temperature capability up to 70°C, this vessel is intended to absorb thermal expansion in solar installations and closed-loop heating systems. It helps to protect pumps, valves and other hydraulic components from pressure spikes and contributes to stable system pressure during heating and cooling cycles.
Advantages
The expansion vessel provides a compact solution for managing volume changes in solar and heating circuits, combining a durable pressure shell with a pre-charged gas cushion that reduces the need for frequent manual adjustments. Designed for operation up to 70°C and rated to 10 bar, it supports reliable pressure control and reduces mechanical stress on system components. The red epoxy-coated casing offers corrosion resistance suitable for indoor mechanical rooms and plant enclosures.
Suitable for
 Solar thermal systems and solar hot-water circuits
 Closed heating circuits in residential or light commercial installations
 Systems where temperature excursions reach up to 70°C
 Applications requiring a compact expansion solution with a 1.5 l pre-charge
Key specifications
 Pre-charge volume: 1.5 litres
 Maximum working pressure: 10 bar
 Maximum permitted temperature: 70°C
 Colour/finish: red, corrosion-resistant coating
 Intended use: solar thermal and closed heating circuits
How to use
Install the expansion vessel on the return line or at a suitable low-pressure point of the circuit according to system layout and local regulations. Ensure the vessel is mounted securely in a vertical or recommended orientation and connected using appropriate fittings to prevent leaks. Verify the pre-charge pressure before commissioning and adjust if necessary to match the static system pressure. Perform pressure checks and bleeding procedures on the heating or solar circuit as part of normal commissioning steps.
Usage recommendations
Check the pre-charge periodically and after any extended shutdown or maintenance that may affect system pressure. Operate the vessel within the specified temperature and pressure limits and protect it from freezing or prolonged exposure to corrosive atmospheres. Follow the system manufacturer's installation and maintenance instructions to ensure compatibility and long service life.

## FAQ

### How much does the Expansion Vessel Reflex solar S 33 cost, and is it available for purchase?

The price is 105.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 03.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Expansion Vessel Reflex solar S 33 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Reflex 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 Reflex 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/12018795/67507275_large.webp