# Safety Relief Valve Afriso MSW for Domestic Hot Water Tanks 10 bar Rp3/4" x Rp1" (model 42427)

**URL:** https://aio.lv/en/product--afriso-42427--11836439
**Data updated:** 2026-03-09 14:50 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** Afriso
**Manufacturer code:** 42427
**EAN:** 4016203424273
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 13.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--afriso-42427--11836439

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

Afriso MSW safety relief valve model 42427 is designed for domestic hot water storage tanks and systems. Rated for 10 bar, with Rp3/4" inlet and Rp1" outlet connections, it protects tanks and piping from overpressure by discharging excess fluid. Suitable for potable hot water installations, replacement or new installations where pressure relief according to system specification is required.

## Long description

Afriso MSW safety relief valve model 42427 is designed for domestic hot water storage tanks and related piping systems. The valve opens at an overpressure set to protect tanks and installations rated up to 10 bar, relieving excess fluid to avoid damage and maintain safe operating conditions. It features a Rp3/4" inlet and Rp1" outlet connection configuration suitable for typical potable hot water installations and replacement of compatible valves in existing systems.
Advantages
The Afriso MSW relief valve provides a reliable mechanical overpressure protection solution for domestic hot water systems. Constructed for compatibility with potable water installations, it offers straightforward hydraulic discharge performance at the specified pressure rating. The valve’s standardized thread connections ensure straightforward installation or replacement within common plumbing arrangements, while the compact design minimizes space requirements on storage tanks and piping runs.
Suitable for
 Domestic hot water storage tanks and cylinders
 Boiler and hot water circulation systems requiring overpressure protection
 Replacement of existing relief valves with matching inlet/outlet connections
 Potable water installations where certified pressure relief is required
Key specifications
 Maximum operating pressure: 10 bar
 Inlet connection: Rp3/4" (female thread)
 Outlet connection: Rp1" (female thread)
 Application: Safety relief for domestic hot water systems
 Material compatibility: Suitable for potable hot water (materials designed for contact with drinking water)
How to use
Install the Afriso MSW safety relief valve on the hot water storage tank or pipeline at a location recommended by the system manufacturer, typically at or near the tank’s top or on the pressure side of the system. Ensure the inlet and outlet threads match the plumbing connections and apply an appropriate sealing method for Rp threads. Set or verify the factory-set relief pressure corresponds to the system design (10 bar rating). Provide a safe discharge path for expelled fluid to a suitable drain or safe location according to local regulations.
Usage recommendations
Inspect the valve periodically for signs of corrosion, blockage, or leakage. Test operation during scheduled maintenance by following local codes and manufacturer guidance. Replace the valve if it shows impaired operation, persistent leakage, or physical damage. Ensure installation complies with applicable plumbing and building regulations and use certified components where required.

## FAQ

### How much does the Safety Relief Valve Afriso MSW 42427 cost, and is it available for purchase?

The price is 15.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 20.07.2026 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/11836439/67236088_large.webp