# Radiator check valve SCHLOSSER DN15 1/2 x M22 x 1.5 GZ angled (model 601300006)

**URL:** https://aio.lv/en/product--schlosser-601300006--11396720
**Data updated:** 2026-03-07 20:03 (EET)
**Category:** Heating Radiators
**Manufacturer:** SCHLOSSER
**Manufacturer code:** 601300006
**EAN:** 5901445014414
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--schlosser-601300006--11396720

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Angled radiator check valve SCHLOSSER, model 601300006, for DN15 radiator connections. Connection sizes: 1/2 inch and M22 x 1.5 GZ. Designed to permit unidirectional flow and prevent backflow in heating circuits. Suitable for residential and commercial radiators and convectors, used in hydronic heating installations to maintain correct flow direction and system stability.

## Long description

Angled radiator check valve SCHLOSSER DN15 1/2 x M22 x 1.5 GZ is a compact hydraulic component designed for DN15 radiator connections. The valve permits unidirectional flow and prevents backflow in hydronic heating circuits, helping to maintain correct flow direction and stable operation of residential and commercial radiators and convectors. The angled body and standardized connection sizes make it suitable for retrofit and new installations where space is limited or where an angular connection is required.
Advantages
The angled design offers convenient installation where straight connections are impractical, while the check mechanism ensures reliable prevention of reverse flow without requiring external power. Constructed for compatibility with common radiator fittings, the valve provides a compact solution that integrates with standard 1/2 inch and M22 x 1.5 threaded connections. Its simple mechanical operation reduces maintenance needs and contributes to long-term system stability.
Suitable for
 Residential radiators and convectors with DN15 connections
 Commercial heating units where backflow prevention is required
 Hydronic heating circuits and boiler-fed radiator loops
 Retrofit installations requiring angled connection fittings
Key specifications
 Connection interface: 1/2 inch and M22 x 1.5 threaded angled fitting
 Nominal pipe size: DN15
 Function: unidirectional check valve (prevents backflow)
 Body orientation: angled for space-efficient installation
 Application: hydronic heating systems for radiators and convectors
How to use
Install the valve in the return or supply line of the radiator assembly according to the flow direction indicated on the body. Use appropriate sealing method for the threaded connections (such as PTFE tape or sealing compound) and tighten to the torque recommended for the radiator fittings to avoid leaks. Ensure the valve is accessible for inspection and that surrounding components do not obstruct the moving parts of the check mechanism. After installation, pressurize the circuit and check for correct flow direction and absence of leaks before completing the commissioning process.
Usage recommendations
Select this angled check valve when you need compact, non-powered backflow protection for DN15 radiator connections. Verify compatibility with radiator tailpieces and use standard installation practice for threaded fittings. Periodic visual inspection during routine heating system maintenance is recommended to ensure continued operation and to detect any signs of wear or leakage.

## FAQ

### How much does the Radiator check valve SCHLOSSER DN15 601300006 cost, and is it available for purchase?

The price is 12.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 92 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 14.07.2026 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 SCHLOSSER 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 SCHLOSSER 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/11396720/66044792_large.webp