# DIAMOND pipe fitting MUFA internal thread 32 mm x 1 PN20 (PP-R)

**URL:** https://aio.lv/en/product--diamond-d-pp-601439--11936943
**Data updated:** 2026-03-10 11:33 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** DIAMOND
**Manufacturer code:** D PP 601439
**EAN:** 5907547601439
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.49 €
**Prices and availability valid until:** 2026-08-06 23:59
**Price without VAT (21%):** 10.32 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--diamond-d-pp-601439--11936943

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

PP‑R DIAMOND MUFA with internal thread, size 32 mm x 1 and pressure rating PN20. A polypropylene‑random (PP‑R) pipe fitting designed to join pipes with an internal threaded connection, suitable for hot and cold water distribution systems where PN20 pressure class is required. Used in residential and commercial plumbing installations for secure, corrosion‑resistant connections.

## Long description

DIAMOND pipe fitting MUFA internal thread 32 mm x 1 PN20 (PP-R) is a polypropylene‑random (PP‑R) coupling designed to connect a smooth PP‑R pipe to a threaded male connection. The fitting has a 32 mm socket for fusion welding to PP‑R piping and a 1" internal metric thread suitable for standard threaded brass or plastic components. It is manufactured for use in hot and cold water distribution systems with a PN20 pressure rating, offering a corrosion‑resistant and chemically stable connection point in residential and light commercial installations.
Advantages
The PP‑R construction provides long service life, resistance to scaling and corrosion, and low thermal conductivity compared with metal fittings. The internal thread allows easy integration with threaded valves, adapters or fixtures without the need for additional transition fittings. The PN20 rating indicates suitability for systems with higher operating pressures and temperatures typical of domestic hot water circulation. The smooth fusion socket ensures a leak‑resistant joint when correctly welded to matching PP‑R pipe.
Suitable for
 Hot and cold potable water distribution in residential buildings
 Domestic central heating circuits where PN20 class is required
 Connections to threaded valves, gauges or appliances
 Plumbing repairs and retrofits where corrosion resistance is needed
Key specifications
 Material: polypropylene‑random (PP‑R)
 Socket size for fusion: 32 mm
 Internal thread: 1" metric/internal (compatible with standard threaded fittings)
 Pressure rating: PN20
 Application temperature: suitable for typical hot and cold water temperatures within PN20 limits
 Typical uses: water distribution, heating systems, appliance connections
How to use
Prepare the PP‑R pipe by cutting square and cleaning the end face. Use an appropriate PP‑R welding tool to heat the socket end of the fitting and the pipe to the recommended fusion temperatures and join them following the welding equipment manufacturer's procedure. After cooling, screw the mating threaded component into the internal thread, applying thread sealant or PTFE tape as required for the material of the mating part. Ensure alignment and allow the fused joint to reach full cooling time before pressurizing the system.
Usage recommendations
Verify compatibility of the threaded mating component with PP‑R fittings and select appropriate thread sealing material for metal or plastic counterparts. Installations should conform to local plumbing codes and operating limits for PN20 systems; perform pressure testing after installation according to industry standards.

## FAQ

### How much does the DIAMOND MUFA PP-R 32 mm x 1 PN20 cost, and is it available for purchase?

The price is 12.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 27.07.2026 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 DIAMOND 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 DIAMOND 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/11936943/67369118_large.webp