# Thermostatic return temperature protection valve CALEFFI DN32 (1 1/4") adjustable 55°C

**URL:** https://aio.lv/en/product--caleffi-280075--11829230
**Data updated:** 2026-03-09 14:38 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** CALEFFI
**Manufacturer code:** 280075
**EAN:** 8016615340716
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 213.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 176.44 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--caleffi-280075--11829230

## 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

Thermostatic return temperature protection valve by CALEFFI, size DN32 (1 1/4") with adjustable setpoint at 55°C. Designed to maintain minimum return-water temperature in heating systems, it prevents boiler condensation and improves system efficiency. Suitable for use in hydronic heating, radiators, and boiler protection circuits where controlled return temperature is required.

## Long description

Thermostatic return temperature protection valve CALEFFI DN32 (1 1/4") adjustable 55°C is designed to maintain a minimum return-water temperature in closed hydronic heating systems. The valve monitors return flow and mixes hotter supply water to keep the return temperature at the selected setpoint, preventing boiler condensation and helping maintain efficient combustion. This model fits DN32 piping and features an adjustable thermostat element factory-set to 55°C for straightforward commissioning and stable operation in radiator circuits, boilers and auxiliary heating loops.
Advantages
The thermostatic return temperature protection valve provides stable temperature control without external power, using a self-actuating sensing element. It reduces the risk of corrosion and condensation in condensing and non-condensing boilers by ensuring return-water temperature does not fall below the selected threshold. The compact DN32 body and robust internal components support long service life and low maintenance. An adjustable setpoint allows installers to adapt the valve to system requirements during commissioning.
Suitable for
 Hydronic heating systems where minimum return temperature must be maintained
 Radiator circuits and distribution manifolds
 Boiler protection to prevent flue gas condensation
 Integration into secondary loops and buffer tank circuits
Key specifications
 Connection size: DN32 (1 1/4") compatible with standard threaded fittings
 Function: thermostatic mixing for return temperature protection
 Adjustable setpoint: factory related to 55°C (adjustable around this value)
 Operating principle: self-acting thermostatic element, no external power required
 Typical application temperature range: heating system temperatures up to standard boiler operating levels
 Material and construction: corrosion-resistant valve body and internal moving parts designed for heating circuits
How to use
Install the valve in the return line close to the boiler or heat source following hydraulic flow direction markings. During commissioning, set the thermostat to the desired minimum return temperature, using the factory setpoint of 55°C as a reference. Ensure system water quality and filtration are appropriate to avoid debris entering the valve. The valve operates automatically: when return water is below the setpoint it mixes warmer supply water into the return flow; once the return reaches the set temperature the mixing closes and normal flow resumes.
Usage recommendations
Position the valve where it is accessible for adjustment and maintenance, and combine it with appropriate strainers and air separators in the circuit. Verify compatibility with system pressures and temperatures, and follow manufacturer guidelines for commissioning to maintain boiler warranty conditions and achieve reliable return temperature protection.

## FAQ

### How much does the CALEFFI thermostatic return valve DN32 55°C cost, and is it available for purchase?

The price is 213.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 31 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 CALEFFI thermostatic return valve DN32 55°C 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 CALEFFI 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 CALEFFI 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/11829230/67230081_large.webp