# ALCADRAIN double elbow DN40/32 with non-return valve P156Z, adjustable 8–23 mm

**URL:** https://aio.lv/en/product--alcadrain-p156z--11811633
**Data updated:** 2026-03-09 10:55 (EET)
**Category:** Sinks & Sink Accessories
**Manufacturer:** ALCADRAIN
**Manufacturer code:** P156Z
**EAN:** 8595580562519
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 37.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 30.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--alcadrain-p156z--11811633

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

ALCADRAIN double elbow DN40/32 P156Z is a plumbing fitting with integrated non-return (check) valve and adjustable connection range 8–23 mm. Designed for DN40 to DN32 transitions, it prevents backflow while enabling secure drainage or waste pipe connections. Suitable for residential and light commercial drainage systems requiring compact backflow protection and adaptable pipe joining.

## Long description

ALCADRAIN double elbow DN40/32 with non-return valve P156Z is a compact plumbing fitting designed for transitions between DN40 and DN32 drain or waste pipes. The unit combines a double elbow shape with an integrated check valve and an adjustable connection range of 8–23 mm, allowing secure joins with different pipe wall thicknesses while preventing backflow. Its compact dimensions make it suitable for areas with limited space where reliable drainage and anti-backflow performance are required.
Advantages
The integrated non-return valve ensures one-way flow to prevent wastewater from returning into connected fixtures, reducing the risk of odours and contamination. The adjustable connection range of 8–23 mm accommodates a variety of pipe thicknesses and materials, simplifying installation without the need for additional adapters. The double elbow design facilitates smooth DN40 to DN32 transitions and helps fit piping runs into tight or confined installations.
Suitable for
Residential sink, basin and trap drain connections where DN40 to DN32 reduction is required
Compact under-sink drainage runs with limited installation space
Light commercial drainage systems requiring basic backflow protection
Key specifications
Connection sizes: DN40 to DN32 transition
Adjustable connection range: 8–23 mm to accommodate varying pipe wall thickness
Integrated non-return (check) valve for one-way flow
Double elbow geometry for compact directional change
How to use
Position the elbow between the DN40 and DN32 sections of the drainage system, ensuring the flow direction of the non-return valve aligns with the intended wastewater discharge. Adjust the connection clamp or sealing element to match the actual pipe wall thickness within the 8–23 mm range and tighten to achieve a secure, leak-free joint. Verify that the check valve moves freely and that there is no obstruction before completing the installation. Where necessary, trim or prepare pipe ends so they seat correctly inside the fitting.
Usage recommendations
Use in dry, frost-free conditions and ensure compatibility with the pipe materials in the existing drainage system. Periodically inspect the non-return valve for debris or wear in installations exposed to solids or grease. For installations subject to higher pressures or unusual chemical exposure, consult applicable plumbing standards or a qualified installer.

## FAQ

### How much does the ALCADRAIN double elbow DN40/32 P156Z cost, and is it available for purchase?

The price is 37.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 58 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 15.07.2026 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/11811633/67212860_large.webp