# Caleffi thermostatic return protection valve DN 32 with 1 1/4 inch male threaded connections and 45 degree Celsius temperature setting

**URL:** https://aio.lv/en/product--caleffi-280074--12606156
**Data updated:** 2026-07-31 04:14 (EEST)
**Category:** Other goods
**Manufacturer:** CALEFFI
**Manufacturer code:** 280074
**EAN:** 8016615340709
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 236.99 €
**Prices and availability valid until:** 2026-10-30 23:59
**Price without VAT (21%):** 195.86 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--caleffi-280074--12606156

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.10.2026 | free |
| Pickup points | 19.10.2026 | 1.99 EUR |
| Courier delivery to door | 19.10.2026 | 4.99 EUR |

## Summary description

Caleffi thermostatic return protection valve model 280074 designed to prevent excessively low return temperatures in heating systems. Features DN 32 size, 1 1/4 inch male threaded connections, and a fixed temperature setting of 45 degrees Celsius. Ideal for maintaining boiler efficiency and preventing thermal shock and condensation.

## Long description

The Caleffi thermostatic return protection valve DN 32 with 1 1/4 inch male threaded connections and 45 degree Celsius temperature setting is engineered to protect heating systems by preventing excessively low return temperatures. This reliable component helps maintain optimal boiler efficiency while reducing the risk of thermal shock and harmful condensation within the system.
Advantages
This valve contributes significantly to the longevity and stable operation of heating equipment by automatically regulating water temperatures entering the boiler. Its robust design ensures consistent performance in demanding heating applications, helping to prevent premature corrosion caused by flue gas condensation.
Suitable for
Biomass boilers and solid fuel heating systems
Central heating installations requiring return temperature control
Preventing condensation and thermal shock in boilers
When it may not be suitable
This valve is not designed for domestic hot water supply networks or cooling systems where temperature regulations differ. It may also be unsuitable for heating circuits that require adjustable temperature settings rather than a fixed 45 degrees Celsius threshold.
Key specifications
Nominal diameter: DN 32
Connection size: 1 1/4 inch male thread
Fixed temperature setting: 45 degrees Celsius
Application: Heating systems return protection
How to use
The valve should be installed directly on the return pipe leading to the boiler following the manufacturer's piping diagrams. Ensure the flow direction matches the markings on the valve body during installation to guarantee correct thermostatic operation.
What to consider before purchase
Verify that the DN 32 size and 1 1/4 inch connections match your existing pipe dimensions.
Confirm that the fixed 45 degree Celsius setting aligns with your boiler manufacturer requirements.
Check available installation space within the heating room for proper fitting.
Usage recommendations: Regularly inspect the valve during routine heating system maintenance to ensure unimpeded operation and check for any signs of leakage around the threaded connections.

## FAQ

### How much does the Caleffi 280074 Thermostatic Return Valve DN 32 cost, and is it available for purchase?

The price is 236.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 14.10.2026 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 280074 Thermostatic Return Valve DN 32 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/12606156/70304481_large.webp