# Check valve FERRO ZZM6 with brass closing element 2" — backflow valve

**URL:** https://aio.lv/en/product--ferro-zzm6--11836291
**Data updated:** 2026-03-09 14:49 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** FERRO
**Manufacturer code:** ZZM6
**EAN:** 5902194920070
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

FERRO ZZM6 is a 2" check (non-return) valve with a brass closing element designed to prevent backflow in plumbing and heating systems. The valve features a robust brass internal component for reliable sealing, suitable for use in water supply, central heating, and pump installations. It is intended for inline installation to protect equipment from reverse flow and maintain system integrity.

## Long description

FERRO ZZM6 is a 2" check valve with a brass closing element designed to prevent backflow in plumbing, heating and pump systems. Intended for inline installation, the valve provides one-way fluid flow control to protect pumps, boilers and downstream equipment from reverse flow. The brass closing element offers reliable sealing and corrosion resistance in typical water supply and central heating applications.
Advantages
The FERRO ZZM6 combines a durable brass internal closing element with a compact 2" body to deliver reliable non-return performance. Its construction minimises leakage and wear under normal operating conditions, while the brass component improves sealing consistency and reduces the risk of corrosion compared with some other closing materials. The inline design simplifies installation in straight pipe runs and supports compatibility with common plumbing systems.
Suitable for
Hot and cold water supply lines
Central heating systems and boiler protection
Pump discharge lines to prevent reverse flow
Domestic and light commercial plumbing installations
Key specifications
Nominal size: DN 50 (2 inches)
Closing element material: brass
Function: non-return (check) valve for one-way flow
Installation type: inline, horizontal or vertical orientations as allowed by system design
Application media: potable water and heating water (typical fluids for plumbing and heating systems)
How to use
Install the FERRO ZZM6 in the pipeline with the flow arrow pointing in the direction of desired fluid movement. Ensure pipe ends are clean and properly prepared for the selected joining method. Tighten connections to the recommended torque to avoid distortion of the valve body or sealing surfaces. Verify correct orientation and support adjacent piping to prevent stress on the valve. After installation, pressurise the system and check for leaks around connections; cycle the system if necessary to confirm one-way operation.
Usage recommendations
Use in water-based systems only and avoid exposure to aggressive chemicals or media not compatible with brass. For best performance, follow local plumbing codes and manufacturer guidance for pressure and temperature limits. Periodically inspect for signs of wear, scaling or leakage and service or replace the valve if sealing becomes compromised.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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

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