# Angle check valve Herz RL‑1‑E 1/2" — return valve, model 1372401

**URL:** https://aio.lv/en/product--herz-1372401--11835762
**Data updated:** 2026-03-09 14:49 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** Herz
**Manufacturer code:** 1372401
**EAN:** 9004174314506
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 20.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 16.93 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--herz-1372401--11835762

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

Herz RL‑1‑E angle check (return) valve, 1/2" connection, model 1372401 (EAN 9004174314506). Designed to prevent backflow in heating and plumbing systems, the compact angled body fits pipework with half‑inch threads. Suitable for domestic and light commercial installations where reliable one‑way flow control is required.

## Long description

The Herz RL‑1‑E angle check valve with a 1/2" connection is a compact return valve designed to prevent backflow in heating and plumbing systems. Its angled body allows installation in confined spaces and aligns with standard 1/2" threaded pipework used in domestic and light commercial installations. The valve ensures one‑way flow control to protect boilers, radiators, and other system components from reverse flow and unwanted pressure changes.
Advantages
The valve offers a simple and reliable mechanical design with a compact angled form factor that facilitates installation where straight inline valves are impractical. Manufactured to industry quality standards, it provides consistent one‑direction flow control and reduces the risk of system contamination or reverse circulation. Its 1/2" threaded connection is compatible with common fittings, making it convenient to integrate into existing plumbing and heating circuits.
Suitable for
 Domestic heating systems (boilers and radiators)
 Hot water circulation loops
 Return lines in small commercial installations
 Plumbing systems requiring backflow prevention in tight spaces
Key specifications
 Connection size: 1/2" threaded
 Body type: angled (elbow) configuration for compact installations
 Function: check/return valve for one‑way flow control
 Application: heating and plumbing systems to prevent backflow
 Material: metal valve body suitable for standard water and heating media
How to use
Install the valve in the return line so that flow follows the valve's specified direction; the angled design should be oriented to match existing pipe runs. Ensure threads are clean and use appropriate sealing (for example, PTFE tape or approved jointing compound) on the 1/2" threads before tightening to manufacturer‑recommended torque. After installation, pressurize the system and check for leaks and correct one‑way operation by observing flow direction or using standard commissioning procedures for heating systems.
Usage recommendations
The valve is intended for installation by a qualified plumber or heating engineer. Regular inspection during routine system maintenance is recommended to confirm free movement of the internal mechanism and absence of debris that could impair one‑way operation. Do not use the valve for fluids outside normal heating or potable water media without verifying material compatibility.

## FAQ

### How much does the Angle check valve Herz RL‑1‑E 1/2" cost, and is it available for purchase?

The price is 20.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 10.07.2026 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 Herz 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 Herz 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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