# Compression union with gasket SANHA Therm ZWxGZ 28x1 for copper and soft steel pipes

**URL:** https://aio.lv/en/product--sanha-124333g281--11849627
**Data updated:** 2026-03-09 17:25 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** SANHA
**Manufacturer code:** 124333G281
**EAN:** 4021343328787
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.49 €
**Prices and availability valid until:** 2026-08-22 23:59
**Price without VAT (21%):** 14.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sanha-124333g281--11849627

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.08.2026 | free |
| Pickup points | 12.08.2026 | 1.79 EUR |
| Courier delivery to door | 12.08.2026 | 4.99 EUR |

## Summary description

SANHA Therm ZWxGZ 28x1 is a compression union with gasket designed for connection of copper and soft steel pipes with a 28 mm outside diameter and 1 mm wall (designation 28x1). It provides a sealed mechanical joint using a gasket for plumbing and heating systems, suitable for installation in potable water, heating circuits and radiator connections where a reliable, demountable pipe union is required.

## Long description

SANHA Therm ZWxGZ 28x1 is a compression union with gasket designed for connecting copper and soft steel pipes with an outer diameter of 28 mm and a 1 mm wall thickness. The fitting creates a sealed mechanical joint by means of a compression sleeve and elastomer gasket, enabling demountable connections for potable water and heating systems. Its design supports radiator connections, heating circuits and general plumbing installations where a reliable, serviceable union is required.
Advantages
The compression union provides a leak-tight connection without soldering or welding, reducing installation time and the need for hot works. The integrated gasket ensures a secure seal under normal operating pressures typical for domestic water and heating systems. The union is suitable for use with copper and soft steel pipes, offering compatibility across common pipe materials. The demountable design allows for easy disassembly and maintenance, while the machined surfaces and standard dimensions support consistent installation quality.
Suitable for
 Domestic potable water supply lines with 28x1 copper or soft steel pipe
 Central heating circuits and radiator connections
 Repair and retrofit work where demountable joints are required
 Plumbing systems requiring sealed mechanical unions without soldering
Key specifications
 Connection type: compression union with elastomer gasket
 Compatible pipe material: copper and soft steel
 Pipe dimensions: 28 mm outside diameter, 1 mm wall thickness (28x1)
 Seal type: integrated gasket for mechanical sealing
 Installation: demountable, reusable joint suitable for potable water and heating systems
How to use
Prepare the pipe ends by cutting square and deburring the inner and outer edges. Slide the compression nut and sleeve onto the pipe, insert the pipe fully into the union body until it meets the stop, and tighten the nut to compress the sleeve against the gasket and pipe. Follow the manufacturer’s recommended tightening torque and sequence to achieve a proper seal. After assembly, inspect visually and perform a pressure test according to applicable plumbing or heating installation standards before commissioning.
Usage recommendations
Use only clean, undamaged pipe ends and ensure the gasket is correctly positioned before tightening. Do not overtighten the compression nut; follow the specified torque to avoid distortion of the sleeve or gasket. For installations in potable water systems, verify compatibility of sealing materials with water quality and local regulations. Where thermal expansion, vibration or dynamic loads are expected, consider supports and expansion measures to prolong joint life.

## FAQ

### How much does the Compression union SANHA Therm ZWxGZ 28x1 cost, and is it available for purchase?

The price is 17.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 44 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 07.08.2026 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 SANHA 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 SANHA 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

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