# Safety Relief Valve Afriso 42390, 1/2" x 3/4" female threaded connection

**URL:** https://aio.lv/en/product--afriso-42390--11835844
**Data updated:** 2026-03-09 14:49 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** Afriso
**Manufacturer code:** 42390
**EAN:** 4016203423900
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 10.32 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--afriso-42390--11835844

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Afriso safety relief valve model 42390 with female threaded connections sized 1/2" x 3/4". Designed to protect pressurized systems by releasing excess pressure when set limits are exceeded. Suitable for heating, plumbing and small industrial applications where a compact, threaded safety valve is required to prevent overpressure and ensure system safety.

## Long description

Afriso safety relief valve model 42390 with 1/2" x 3/4" female threaded connection is a compact device designed to protect pressurized systems by discharging excess pressure when preset limits are exceeded. The valve is intended for use in heating and plumbing installations as well as small industrial systems where a reliable threaded safety valve is required to prevent overpressure and preserve system integrity. Its compact threaded design allows straightforward integration into piping layouts and maintenance-friendly replacement when necessary.
Advantages
The safety relief valve offers dependable pressure relief with a simple mechanical operation that does not require external power. Its female threaded connections provide straightforward installation into standard pipe fittings, and the compact form factor makes it suitable for confined spaces. The valve construction is tailored for repeated actuation and reliable reseating after discharge events, supporting system safety and continuity of operation.
Suitable for
 Domestic and commercial heating systems
 Plumbing installations and water supply circuits
 Small compressed-air or low-pressure industrial systems
 Boilers, water heaters and closed-loop circuits that require overpressure protection
Key specifications
 Connection type: female threaded connections sized 1/2" x 3/4"
 Function: mechanical overpressure relief via spring-loaded valve
 Application environment: heating, plumbing and small industrial systems
 Installation orientation: inline threaded fitting into piping
 Design: compact body suitable for limited-space installations
How to use
Install the safety relief valve in the designated pressure line using compatible threaded fittings and appropriate sealing material on the threads to ensure leak-free connection. Ensure correct orientation and accessibility for inspection and discharge outlet routing. Set or verify the factory-set opening pressure according to system requirements and applicable standards before commissioning. Periodically inspect the valve for signs of corrosion, blockage or leakage and test operation by following local maintenance procedures to confirm the valve opens and reseats correctly.
Usage recommendations
Use the valve within the pressure and temperature limits specified by the system design. Avoid using lubricants or sealants that are incompatible with valve materials. Replace the valve if it shows persistent leakage, mechanical damage, or fails functional tests. For safe operation, follow applicable regulations and standards for pressure equipment and consult qualified technicians for installation and maintenance.

## FAQ

### How much does the Afriso safety relief valve 42390 1/2"x3/4" cost, and is it available for purchase?

The price is 12.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 129 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 06.07.2026 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 Afriso 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 Afriso 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/11835844/67235582_large.webp