# Safety Relief Valve CALEFFI 1/2" 1.5 bar model 311415

**URL:** https://aio.lv/en/product--caleffi-311415--11836320
**Data updated:** 2026-03-09 14:49 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** CALEFFI
**Manufacturer code:** 311415
**EAN:** 8016615119473
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 12.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--caleffi-311415--11836320

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

Safety relief valve CALEFFI 311415 is a 1/2" threaded pressure relief valve set to 1.5 bar. Designed to protect closed heating or plumbing systems from overpressure, it opens at the specified setpoint to discharge excess pressure. Suitable for boilers, heaters, and hot water circuits; used for system safety, pressure control and compliance with installation requirements.

## Long description

CALEFFI 1/2" 1.5 bar model 311415 is a threaded safety relief valve designed to protect closed heating and hot water systems from overpressure. The valve is factory-set to open at 1.5 bar, discharging excess pressure to prevent damage to boilers, heaters and piping. Its compact 1/2" threaded connection and straightforward mechanical operation make it suitable for conventional residential and light commercial installations where reliable overpressure protection is required.
Advantages
The CALEFFI safety relief valve provides precise pressure relief at the specified setpoint without electronic components, offering mechanical simplicity and long-term reliability. Its 1/2" threaded connection enables easy installation into existing systems and tight spaces. The valve is designed for compatibility with typical hot water and heating circuit materials and temperatures, ensuring stable performance under normal operating conditions.
Suitable for
Protection of domestic boilers and water heaters
Hot water circulation and heating loops
Closed plumbing systems requiring pressure relief
Replacement of worn or non-compliant safety valves
Key specifications
Connection size: 1/2" threaded
Set pressure: 1.5 bar (factory-set)
Function: mechanical pressure relief for closed systems
Application: heating systems, hot water circuits and boilers
Material compatibility: standard plumbing and heating materials
How to use
Install the valve in the system at a recommended location such as the boiler or near the pressure vessel, ensuring the 1/2" threaded connection is properly sealed with suitable tape or sealant for the system media. The outlet should be directed to a safe discharge point or drain in accordance with local regulations. After installation, pressurize the system slowly and check for leaks. The valve remains closed during normal operation and opens automatically when system pressure reaches the 1.5 bar setpoint to discharge excess fluid or steam.
Usage recommendations
Periodically inspect the valve and discharge piping for corrosion, blockage or leakage. Do not repair or modify the valve; replace it if it shows signs of malfunction. Follow local codes and manufacturer guidance when locating the discharge line and when performing maintenance to ensure safe operation of heating and hot water systems.

## FAQ

### How much does the Safety Valve CALEFFI 1/2" 1.5 bar 311415 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 — 21 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 08.07.2026 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 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/11836320/67235985_large.webp