# Caleffi iStop anti-freeze valve 1 1/4 inch fluid temperature range 0 to 90 degrees Celsius model 108702

**URL:** https://aio.lv/en/product--caleffi-108702--12606120
**Data updated:** 2026-07-31 04:14 (EEST)
**Category:** Other goods
**Manufacturer:** CALEFFI
**Manufacturer code:** 108702
**EAN:** 8016615698619
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

Caleffi iStop anti-freeze valve model 108702 featuring a 1 1/4 inch connection size and designed for fluid temperatures ranging from 0 to 90 °C. This device is engineered to protect heating and cooling systems from freezing by automatically discharging water when the medium temperature drops near the freezing point, preventing pipe bursts and system damage in residential and commercial installations.

## Long description

The Caleffi iStop anti-freeze valve 1 1/4 inch fluid temperature range 0 to 90 degrees Celsius model 108702 is an essential protective device engineered for heating and cooling systems. Designed to prevent pipe bursts and costly system damage, this valve automatically discharges water when the medium temperature drops near the freezing point, ensuring reliable operation during cold weather conditions in both residential and commercial installations.
Advantages
This anti-freeze valve offers automated operation without requiring an external power source, relying purely on the temperature of the fluid inside the system. By reacting directly to critical low temperatures, it provides proactive protection against ice formation and subsequent pipe rupture. The robust construction ensures dependable performance over long periods, making it a reliable component for safeguarding critical infrastructure in vulnerable locations.
Suitable for
Residential heating systems
Commercial cooling installations
Protecting outdoor or unheated plant rooms
Preventing frost damage in closed-circuit water systems
When it may not be suitable
This valve is not designed for open-loop systems where continuous water discharge would disrupt normal operation or water supply levels. It is also unsuitable for systems utilizing mediums other than water, or operating outside the specified temperature and pressure parameters.
Key specifications
Connection size: 1 1/4 inch
Fluid temperature range: 0 to 90 degrees Celsius
Function: Automatic anti-freeze protection via fluid discharge
How to use
The valve must be installed by a qualified professional in the sections of the heating or cooling system most exposed to low temperatures, typically outdoors or in unheated areas. Proper vertical or horizontal orientation should be maintained according to manufacturer guidelines to ensure the thermal element makes accurate contact with the fluid. Ensure the discharge port is routed safely to a drain or collection point to handle expelled water during a freeze event.
What to consider before purchase
Verify that the 1 1/4 inch connection size matches your existing pipework
Confirm that your system operating temperatures remain within the 0 to 90 degrees Celsius range
Ensure an adequate drainage path is available near the installation site for discharged water
Usage recommendations: Regularly inspect the valve and surrounding pipework before and after the winter season to ensure proper mechanical function and clear drainage paths. Avoid painting or insulating the sensing element directly, as this may delay its thermal response to ambient and fluid temperature drops.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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 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

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