# ALCADRAIN double elbow DN40/32 with built-in check valve model P155Z, adjustable 17–23 mm

**URL:** https://aio.lv/en/product--alcadrain-p155z--11811251
**Data updated:** 2026-03-09 10:54 (EET)
**Category:** Home Appliance Accessories
**Manufacturer:** ALCADRAIN
**Manufacturer code:** P155Z
**EAN:** 8595580562502
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 13.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 11.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--alcadrain-p155z--11811251

## 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

ALCADRAIN P155Z is a double elbow pipe fitting for drainage or ventilation systems, connecting DN40 to DN32. It includes an integrated check (non-return) valve and an adjustable length or offset of 17–23 mm. Suitable for plumbing installations requiring direction change and backflow prevention between 40 mm and 32 mm pipe runs.

## Long description

ALCADRAIN double elbow DN40/32 model P155Z is a compact plumbing fitting designed for drainage and ventilation systems. It provides a controlled change in pipe direction between a 40 mm connection and a 32 mm connection while integrating a non-return (check) valve. The fitting features an adjustable offset of 17–23 mm to accommodate small misalignments and allow precise alignment during installation.
Advantages
The integrated check valve prevents backflow without the need for a separate valve component, reducing space and installation complexity. The adjustable 17–23 mm offset allows installers to correct for minor misalignments between DN40 and DN32 runs, improving fit and sealing. Its compact double elbow design enables direction change in confined spaces and simplifies routing of drainage or ventilation piping.
Suitable for
Domestic and commercial drainage systems where a DN40 to DN32 transition is required
Ventilation ducting and waste pipe runs with limited space for bends
Installations requiring backflow prevention in horizontal or slightly angled sections
Retrofit or repair jobs where pipe alignment needs small adjustment (17–23 mm)
Key specifications
Connections: one end for 40 mm pipe, one end for 32 mm pipe
Function: double elbow with integrated non-return (check) valve
Adjustable offset range: 17–23 mm
Application: drainage and ventilation piping
Design: compact elbow to facilitate installation in confined spaces
How to use
Measure and prepare the DN40 and DN32 pipe ends, ensuring clean, deburred surfaces for reliable sealing. Adjust the elbow to the required offset within the 17–23 mm range to align both pipe runs. Insert the pipes into the corresponding ends and secure per the pipe system's recommended joining method (push-fit, solvent weld, or mechanical coupling as appropriate). Verify that the check valve orientation corresponds to the intended flow direction to ensure correct backflow prevention. After installation, test the system with water or air as applicable to confirm sealing and valve operation.
Usage recommendations
Use this double elbow in accessible locations for maintenance and inspection of the integrated check valve. Avoid excessive mechanical stress on pipe joints and ensure the valve is oriented with the flow direction to maintain reliable non-return function. For solvent or adhesive-based connections follow the adhesive manufacturer's curing times before pressurizing the system.

## FAQ

### How much does the ALCADRAIN double elbow DN40/32 P155Z cost, and is it available for purchase?

The price is 13.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 17 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 ALCADRAIN 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 ALCADRAIN 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/11811251/67212446_large.webp