# Check valve UN model ZK-67-015-C — anti-pollution valve 1/2" (1 piece)

**URL:** https://aio.lv/en/product--un-zk-67-015-c--11947004
**Data updated:** 2026-03-11 13:42 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** UN
**Manufacturer code:** ZK-67-015-C
**EAN:** 5907798744640
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 13.99 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 11.56 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--un-zk-67-015-c--11947004

## 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

UN anti-pollution check valve (model ZK-67-015-C) is a 1/2" inline valve supplied as a single piece. Designed to prevent backflow and contamination in plumbing and heating systems, it serves as a non-return device for potable water and technical installations. Suitable for residential and light commercial use where one-way flow protection is required.

## Long description

UN anti-pollution check valve model ZK-67-015-C is a 1/2" inline non-return valve supplied as a single piece. It is designed to prevent backflow and contamination in plumbing and heating systems, providing one-way flow protection for potable water and technical installations. The valve is intended for residential and light commercial use where reliable prevention of reverse flow is required.
Advantages
The check valve delivers straightforward protection against backflow without complex installation steps. Its inline 1/2" connection fits common pipework standards for domestic and small commercial systems. The device operates automatically, requiring no external power, and reduces the risk of contamination by maintaining one-directional fluid flow. Compact construction allows installation in confined spaces while retaining mechanical reliability under normal operating conditions.
Suitable for
Domestic plumbing systems to prevent reverse flow into potable water lines
Heating circuits and boiler installations requiring one-way flow control
Light commercial installations where backflow protection is necessary
Inline installations in supply lines with 1/2" pipe connections
Key specifications
Connection size: 1/2" inline fitting suitable for standard domestic piping
Function: non-return / one-way flow to prevent backflow and contamination
Material: corrosion-resistant components suitable for potable water (manufacturer-specified materials)
Supply: single unit (one piece)
Application: suitable for potable water and technical installations in residential and light commercial environments
How to use
Install the valve in-line with the flow direction indicated on the body, ensuring correct orientation to permit forward flow and prevent reverse flow. Securely connect to 1/2" pipework using compatible fittings and follow standard plumbing sealing practices. Test the system after installation to confirm there is no leakage and that flow is permitted only in the intended direction. Periodic inspection is recommended to verify the valve operates freely and remains free of debris that could impair sealing.
Usage recommendations
Fit the valve in an accessible location to allow inspection and maintenance. Avoid installing the valve where freezing may occur or where debris-laden fluids can accumulate; if necessary, install strainers or filters upstream. Follow local plumbing codes and manufacturer instructions for torque, sealing materials and pressure/temperature limits.

## FAQ

### How much does the UN ZK-67-015-C anti-pollution check valve 1/2" cost, and is it available for purchase?

The price is 13.99 € (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 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 UN 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 UN 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/11947004/67390495_large.webp