# Reducer fitting SiGMA-Li R4032, polypropylene (PP) 40×32 mm

**URL:** https://aio.lv/en/product--sigma-li-r4032--11826683
**Data updated:** 2026-03-09 11:16 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** SiGMA-Li
**Manufacturer code:** R4032
**EAN:** 5902814626450
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 3.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 3.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sigma-li-r4032--11826683

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

SiGMA-Li R4032 is a polypropylene (PP) reducer fitting with 40×32 mm dimensions. Designed for joining pipes of different diameters, this plumbing fitting provides a secure transition between 40 mm and 32 mm PP pipes. Suitable for potable water and heating systems where PP fittings are used, it is intended for installation in residential and commercial plumbing networks.

## Long description

SiGMA-Li R4032 is a polypropylene (PP) reducer fitting designed to connect pipes of different diameters, providing a reliable transition between 40 mm and 32 mm conduit. Manufactured from PP material, the fitting is intended for use in potable water and heating systems where PP piping is specified. Its compact design allows integration into residential and commercial plumbing networks to adapt pipework without the need for complex alterations.
Advantages
The PP reducer fitting offers chemical resistance and low weight, reducing strain on the piping run while maintaining dimensional stability under typical service conditions. Its smooth internal surface supports efficient flow and reduces the risk of sediment accumulation. The fitting is suitable for use in systems that require corrosion-resistant components and provides a straightforward mechanical connection between two standard pipe sizes.
Suitable for
Transitioning between 40 mm and 32 mm polypropylene pipes
Potable water distribution systems where PP is specified
Heating circuits and low-pressure hydronic installations
Residential and commercial plumbing repairs and retrofits
Key specifications
Material: polypropylene (PP)
Connection sizes: 40 mm to 32 mm
Type: reducer fitting
Application: potable water and heating systems
Suitable environments: indoor plumbing networks
How to use
Prepare mating pipe ends by cutting square and deburring. Ensure pipe surfaces are clean and free of contaminants before assembly. Insert the 40 mm and 32 mm pipe ends into the corresponding sides of the reducer until they seat fully. Depending on the system design and installation practice, secure the joint according to the chosen connection method for polypropylene piping (for example, solvent-bonding, mechanical socketing, or thermal fusion) following manufacturer and local plumbing standards. Verify alignment and test the assembly under appropriate pressure before final commissioning.
Usage recommendations
Use the reducer in systems within the recommended temperature and pressure limits for polypropylene piping. Avoid exposure to direct sunlight for extended periods and protect from mechanical impacts. Follow local codes and guidelines for potable water and heating installations and perform pressure testing after installation to confirm leak-free joints.

## FAQ

### How much does the Polypropylene reducer SiGMA-Li R4032 40×32 mm cost, and is it available for purchase?

The price is 3.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 142 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 10.07.2026 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 SiGMA-Li 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 SiGMA-Li 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/11826683/67228155_large.webp