# Straight coupling Herz 26x3–Rp1 with external thread P 7026 13

**URL:** https://aio.lv/en/product--herz-p702613--11825211
**Data updated:** 2026-03-09 11:14 (EET)
**Category:** Home & DIY Accessories
**Manufacturer:** Herz
**Manufacturer code:** P702613
**EAN:** 9004174143403
**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--herz-p702613--11825211

## 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

Herz straight coupling P 7026 13 for pipes sized 26x3 mm with external Rp1 thread. Metal coupling designed to connect or extend piping runs in heating and plumbing systems. Suitable for mechanical joining of compatible 26x3 pipes where an Rp1 external threaded connection is required; used in residential and commercial installations.

## Long description

Herz straight coupling 26x3–Rp1 with external thread P 7026 13 is a metal connector designed for joining or extending piping runs in heating and plumbing systems. It is manufactured to fit pipes with an outer dimension of 26x3 mm and provides an external Rp1 thread interface for mechanical connection to compatible threaded fittings. The coupling is intended for use where a durable, metal-to-metal joint is required in residential or commercial installations.
Advantages
The coupling offers a compact and robust metal construction that ensures mechanical strength and resistance to typical pressures encountered in heating and plumbing systems. Its external Rp1 threaded end simplifies connection to threaded valves, fittings or adapters without the need for specialized joining tools. The design is compatible with standard 26x3 mm pipe dimensions, promoting straightforward installation and reliable sealing when used with appropriate sealing methods.
Suitable for
 Connecting two sections of 26x3 mm metal pipe in heating distribution.
 Extending existing 26x3 pipe runs in plumbing installations.
 Transitioning between plain-end 26x3 pipe and Rp1-threaded fittings or valves.
 Residential and commercial central heating systems requiring mechanical threaded joints.
Key specifications
 Pipe compatibility: 26x3 mm (outer diameter x wall thickness).
 Thread type: external Rp1 (male threaded connection).
 Material: metal construction suitable for plumbing and heating use.
 Function: straight coupling for joining or extending pipe runs.
How to use
Prepare pipe ends by cutting square and deburring to ensure a clean fit. Slide the coupling onto the plain end of the 26x3 pipe and engage the external Rp1 thread with the mating threaded fitting or valve. Use suitable sealing material or tape on the thread as required by the installation standards to achieve a leak-tight joint. Tighten to the torque recommended for metal threaded fittings in your local codes or installer guidance, avoiding over-tightening that could damage the thread or deform the pipe.
Usage recommendations
Use the coupling only with pipes and fittings that match the specified 26x3 dimensions and Rp1 thread standard. Inspect threads and contact surfaces for cleanliness and damage before assembly. Follow relevant local regulations and industry best practices for sealing, torque, and pressure testing after installation.

## FAQ

### How much does the Herz straight coupling P 7026 13 26x3–Rp1 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 — 7 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 Herz 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 Herz 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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