# Straight Connector SiGMA-Li MZPW321 32x1 mm Female Thread for PEX

**URL:** https://aio.lv/en/product--sigma-li-mzpw321--11825379
**Data updated:** 2026-03-09 11:14 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** SiGMA-Li
**Manufacturer code:** MZPW321
**EAN:** 5902814624289
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.49 €
**Prices and availability valid until:** 2026-08-07 23:59
**Price without VAT (21%):** 11.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sigma-li-mzpw321--11825379

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 24.07.2026 | free |
| Pickup points | 29.07.2026 | 1.89 EUR |
| Courier delivery to door | 29.07.2026 | 4.99 EUR |

## Summary description

SiGMA-Li MZPW321 is a straight connector designed for PEX piping with a 32x1 mm connection and female (internal) thread. Intended for joining PEX tubing to threaded fittings or valves, it ensures a mechanical seal between PEX systems and threaded components. Typical uses include domestic plumbing, heating circuits, and water distribution where a threaded interface is required.

## Long description

SiGMA-Li MZPW321 is a straight connector engineered for PEX piping systems with a 32x1 mm connection and female (internal) thread. It provides a mechanical transition between PEX tubing and threaded fittings or valves, allowing integration of flexible piping into installations that use standard threaded components. The connector is suited to domestic plumbing and heating contexts where a reliable threaded interface is required.
Advantages
The connector delivers a compact, straight coupling solution that preserves flow characteristics while providing a threaded termination. Its female thread simplifies connection to valves and metal fittings without the need for additional adapters. Designed for PEX systems, the component supports secure mechanical sealing and straightforward installation in tight spaces.
Suitable for (tasks / use cases)
Connecting PEX tubing to threaded valves in domestic water distribution
Integrating PEX lines with radiators or heating circuit components that use threaded fittings
Retrofit or repair work where a threaded interface must be added to existing PEX piping
Key specifications
Connection type: straight connector for PEX piping
Size: 32x1 mm connection diameter
Thread: internal (female) threaded end suitable for standard threaded fittings
Compatibility: intended for PEX tubing and standard threaded plumbing components
How to use
Prepare the PEX tubing by cutting it square and deburring the end. Insert the PEX into the connector according to the manufacturer's recommended insertion depth and secure using the appropriate mechanical crimping, expansion method, or compression sleeve compatible with the connector design. Thread the female end onto the mating male fitting or valve, ensuring thread sealant or tape is applied if required by the installation standards. Tighten to the torque recommended for the mating fitting to avoid damaging threads or deforming the PEX connection.
Usage recommendations
Verify compatibility of seals and installation tools with PEX material and the connector design. Use approved thread sealants for potable water applications when required, and follow local plumbing codes for pressure, temperature, and joint testing after installation.

## FAQ

### How much does the SiGMA-Li MZPW321 straight PEX connector 32x1 cost, and is it available for purchase?

The price is 14.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 14 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 24.07.2026 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/11825379/67227116_large.webp