# Non-return valve kfa² 6/4" with brass poppet model 710-010-40

**URL:** https://aio.lv/en/product--kfa-710-010-40--11836448
**Data updated:** 2026-03-09 14:50 (EET)
**Category:** Kitchen & Bathroom Faucets
**Manufacturer:** kfa²
**Manufacturer code:** 710-010-40
**EAN:** 5907571710145
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 19.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 16.11 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kfa-710-010-40--11836448

## 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

Non-return valve by kfa², model 710-010-40, with a 6/4" connection and a brass poppet. Designed to prevent backflow in plumbing and heating systems, this check valve provides one-way fluid flow control. Suitable for installations requiring corrosion-resistant brass internal components and reliable prevention of reverse flow in water circuits and similar applications.

## Long description

Non-return valve kfa² 6/4" with brass poppet model 710-010-40 is a check valve designed to allow one-way flow and prevent backflow in plumbing and heating systems. The valve features a brass internal poppet that offers corrosion resistance where metallic components are required, and a 6/4" connection size suitable for standard pipe fittings. It is intended for installations where reliable prevention of reverse flow is necessary to protect pumps, piping networks, and system components.
Advantages
The brass poppet provides durable performance and improved resistance to corrosion compared with non-metallic internals. The valve’s straightforward mechanical design ensures immediate sealing in reverse flow conditions, reducing the risk of water hammer and system contamination. Its 6/4" connection fits common plumbing sizes, facilitating quick installation and compatibility with existing pipes and fittings.
Suitable for
Domestic and commercial hot and cold water circuits
Heating systems, including boiler and radiator loops
Pump discharge lines to prevent backflow into the pump
Circulation loops and closed fluid circuits
Key specifications
Connection size: 6/4" (suitable for compatible plumbing fittings)
Internal poppet material: brass for corrosion resistance
Function: one-way check valve to prevent reverse flow
Application: potable water and heating system use where brass internals are acceptable
How to use
Install the valve in the flow line with the arrow or flow direction marking pointing in the direction of desired fluid movement. Ensure threaded or fitted connections are tightened to the manufacturer’s recommended torque and sealed with appropriate thread sealant or tape where required. Verify system pressure and temperature limits are compatible with the valve’s material and installation environment before commissioning. After installation, run the system and check for proper operation and absence of leaks.
Usage recommendations
Use the valve in systems where brass internals are suitable for the conveyed fluid; avoid use with aggressive chemicals incompatible with brass. Periodically inspect for leaks and debris that might prevent full closure. If sediment-prone water is present, consider installing strainers or filters upstream to protect the poppet and maintain reliable sealing.

## FAQ

### How much does the Non-return valve kfa² 6/4" 710-010-40 cost, and is it available for purchase?

The price is 19.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 18 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 kfa² 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 kfa² 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/11836448/67236095_large.webp