# Check valve FERRO ZZK1 PN16 1/2" for water systems

**URL:** https://aio.lv/en/product--ferro-zzk1--11836292
**Data updated:** 2026-03-09 14:49 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** FERRO
**Manufacturer code:** ZZK1
**EAN:** 5902194949590
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 8.67 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ferro-zzk1--11836292

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

FERRO ZZK1 is a 1/2" check valve with PN16 pressure rating designed for installation in water systems to prevent backflow. The valve model ZZK1 features a compact design suitable for residential and light commercial plumbing, ensuring unidirectional flow and protection of pumps and piping. Compatible with standard threaded connections.

## Long description

FERRO ZZK1 PN16 1/2" check valve is designed for use in water systems to prevent reverse flow and protect pumps, boilers and piping. The valve offers a compact threaded body suitable for installation in residential and light commercial plumbing where unidirectional flow control is required. Compatible with standard 1/2" threaded connections, this PN16-rated check valve is intended for applications with typical domestic water pressures.
Advantages
The valve provides reliable prevention of backflow through a simple, robust mechanism that requires no external power. Its compact construction and threaded connection facilitate straightforward replacement or retrofit in existing pipelines. Rated for PN16 pressure class, the device combines corrosion-resistant materials with a design that minimises flow resistance and maintenance needs.
Suitable for
Domestic cold and hot-water supply systems
Protection of circulation pumps and water heaters
Small commercial plumbing installations
Retrofit or replacement in existing threaded pipelines
Key specifications
Nominal size: 1/2" (threaded)
Pressure rating: PN16
Fluid: water (cold and hot domestic water)
Connection type: standard threaded connection
Flow direction: unidirectional (check valve)
Construction: compact body suitable for confined spaces
How to use
Install the check valve inline with the piping so that the flow arrow on the body matches the intended flow direction. Ensure threaded sealing is applied according to local plumbing practice (for example, thread seal tape or appropriate sealant) and tighten to recommended torque for 1/2" fittings. The valve should be fitted in a position that allows normal flow and prevents trapping of debris; avoid installing in locations where freezing may occur. Inspect connections after installation and perform a pressure test at working pressure to verify there are no leaks and the valve operates correctly.
Usage recommendations
Choose an installation location accessible for inspection. For systems with particulate contamination, install a strainer or filter upstream to reduce the risk of valve blockage. Follow local plumbing codes for materials and installation practice. If used in hot-water systems, verify temperature compatibility with system requirements.

## FAQ

### How much does the Check valve FERRO ZZK1 PN16 1/2" cost, and is it available for purchase?

The price is 10.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 07.07.2026 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 FERRO 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 FERRO 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/11836292/67235959_large.webp