# Angle Check Valve Comap 428254 — 15-1/2 for Soldering on Copper Pipe, Adjustable Setting and Flow Shut-off

**URL:** https://aio.lv/en/product--comap-428254--11699717
**Data updated:** 2026-03-08 08:45 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Comap
**Manufacturer code:** 428254
**EAN:** 3430650057128
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 6.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--comap-428254--11699717

## 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 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Angle check valve Comap model 428254 (15-1/2) designed for soldering onto copper pipes. The valve provides one-way flow control with an adjustable setting and integrated flow shut-off function. Suited for heating and plumbing systems where secure backflow prevention, commissioning adjustment and the ability to isolate the line are required. Intended for installation on compatible copper pipe diameters.

## Long description

Angle check valve Comap 428254 (15-1/2) is a compact valve designed for soldering onto copper pipe connections. It provides one-way flow control with an adjustable setting and an integrated flow shut-off function, allowing commissioning adjustment and isolation of the line. The valve is intended for use in heating and plumbing systems where backflow prevention, fine adjustment and the possibility to isolate a branch are required.
Advantages
This angle check valve combines a straightforward mechanical non-return function with an adjustable set point, enabling accurate balancing during system commissioning. The integrated shut-off allows quick isolation without removing the valve from the pipe, reducing service time. Its soldering connection to copper pipe ensures a secure metallic joint suitable for permanent installations, and the compact angle body saves space in tight installations.
Suitable for
 Heating circuits in residential and commercial buildings
 Plumbing systems requiring backflow prevention
 Hydronic branches where commissioning adjustment is needed
 Installation points with limited space requiring an angle fitting
Key specifications
 Connection type: soldering joint for copper pipe
 Mounting orientation: angle configuration for compact installation
 Function: one-way (non-return) valve with adjustable setting
 Shut-off: integrated flow shut-off mechanism for isolation
 Typical applications: heating and plumbing systems, hydronic circuits
How to use
Prepare the copper pipe ends according to standard soldering practice, ensuring clean, deburred surfaces and correct pipe length for insertion. Position the valve in the intended orientation and solder the joint using appropriate flux and solder suitable for potable water or heating systems as required. After installation, adjust the valve setting to obtain the desired flow or balancing point using the adjustment mechanism. Use the integrated shut-off when isolating the branch for maintenance or replacement upstream or downstream of the valve.
Usage recommendations
Verify compatibility of pipe diameter and system media before soldering. Follow local plumbing and heating codes and use correct solder type and flux for the system (potable water or heating), and perform a pressure test after installation. Avoid exposing the valve body to excessive heat during soldering by using heat sinks or cooling methods if needed. Regular inspection and functional check of the non-return and shut-off functions are recommended during routine system maintenance.

## FAQ

### How much does the Angle Check Valve Comap 428254 (15-1/2) cost, and is it available for purchase?

The price is 7.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 Comap 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 Comap 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/11699717/67082987_large.webp