# Check valve FERRO ZZM4 with brass closing element 5/4"

**URL:** https://aio.lv/en/product--ferro-zzm4--11836008
**Data updated:** 2026-03-09 14:49 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** FERRO
**Manufacturer code:** ZZM4
**EAN:** 5902194920056
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 20.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 17.35 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ferro-zzm4--11836008

## 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 ZZM4 check valve features a brass closing element and 5/4" connection size. Designed to prevent backflow in water and heating installations, this valve ensures directional flow control and protects systems from reverse flow. Suitable for residential and commercial plumbing, boiler and pump circuits where a durable brass component is required.

## Long description

The FERRO ZZM4 check valve with brass closing element and 5/4" connection is designed to prevent reverse flow in water and heating systems. Made for installation in residential and commercial plumbing, boiler and pump circuits, this check valve provides directional flow control and system protection where a robust brass closure is required. The device is intended for inline fitting to threaded pipe connections and is compatible with standard 5/4" plumbing threads.
Advantages
The brass closing element offers corrosion resistance and stable performance under typical potable water and heating system conditions. Threaded 5/4" connections enable straightforward installation into existing pipelines without special adapters. The FERRO ZZM4 design provides reliable prevention of backflow to protect pumps, boilers and other equipment from reverse flow damage. The compact form factor allows placement in confined spaces while maintaining serviceability.
Suitable for
 Domestic and commercial water supply lines
 Heating circuits and boiler return lines
 Pump discharge and suction protection
 Systems requiring a durable brass closure for longevity
Key specifications
 Connection size: 5/4" threaded
 Closing element material: brass
 Intended media: water and heating fluids
 Mounting orientation: inline with flow direction
 Application: preventing reverse flow in plumbing and heating systems
How to use
Install the check valve in the pipeline with the arrow or marking aligned in the direction of intended flow. Prepare threaded pipe ends by cleaning and applying appropriate thread sealant or tape suitable for potable water or heating systems. Tighten the valve using suitable wrenches on the valve body to avoid stress on the pipeline; do not over-torque. After installation, pressurize the system and inspect for leaks. Periodically verify operation and inspect the valve during routine system maintenance.
Usage recommendations
Use the FERRO ZZM4 check valve in systems with compatible fluids and temperatures within the specifications of brass components. Avoid installation where debris or particulates are expected without upstream filtration, as foreign particles can impede the closing element. For optimal longevity, perform regular inspections and replace the valve if wear or persistent leakage is observed.

## FAQ

### How much does the FERRO ZZM4 check valve 5/4" cost, and is it available for purchase?

The price is 20.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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/11836008/67235718_large.webp