# Hewalex screw connection KS 3/4” – plumbing fitting, model 42.01.00

**URL:** https://aio.lv/en/product--hewalex-420100--11825962
**Data updated:** 2026-03-09 11:15 (EET)
**Category:** Solar Panel Accessories
**Manufacturer:** Hewalex
**Manufacturer code:** 42.01.00
**EAN:** 5907657190533
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 9.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hewalex-420100--11825962

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Hewalex KS 3/4” screw connection (model 42.01.00) is a plumbing fitting designed for joining pipes and components with a 3/4-inch threaded interface. It provides a secure mechanical connection for water systems and compatible installations. Suitable for use in domestic and commercial plumbing, solar thermal circuits and heating systems where a 3/4” threaded joint is required.

## Long description

Hewalex screw connection KS 3/4” (model 42.01.00) is a plumbing fitting engineered to join pipes and components with a 3/4-inch threaded interface. The component provides a secure mechanical connection suitable for pressurized water systems, heating circuits and solar thermal installations where a reliable 3/4” threaded joint is required. Constructed to standard dimensions for compatibility with common 3/4” plumbing threads, it is intended as a straightforward coupling or adapter in supply, return and service lines.
Advantages
The screw connection offers a compact, durable solution for threaded pipe joints with consistent thread engagement and leak-resistant assembly when used with appropriate sealing material. Its standardized 3/4” thread simplifies replacement and integration with valves, pumps and fittings from multiple manufacturers. The design enables rapid installation and removal for maintenance or component replacement without altering adjoining pipework.
Suitable for
Domestic potable water supply and distribution
Residential and commercial heating systems (radiators, boilers, circulation lines)
Solar thermal circuit connections and accessory fittings
Plumbing repairs, retrofits and component integrations where 3/4” threaded joints are specified
Key specifications
Thread size: 3/4-inch (standard plumbing thread)
Function: mechanical threaded connection for pipes and fittings
Application: water systems, heating circuits and solar thermal installations
Compatibility: designed to mate with standard 3/4” threaded valves, pumps and fittings
How to use
Prepare mating threads by cleaning debris and applying an appropriate thread sealant or tape compatible with potable water and system temperatures. Hand-start the screw connection to ensure correct alignment, then tighten with suitable tools until a secure fit is achieved without over-torquing. After installation, pressurize the system and inspect the joint for leaks; if necessary, tighten incrementally or reapply sealing material. For disassembly, isolate and depressurize the line before unscrewing the fitting.
Usage recommendations
Use thread sealant or PTFE tape rated for potable water and the system’s operating temperature range. Avoid excessive torque to prevent thread damage; follow system manufacturer guidelines for tightening. For installations in heating or solar circuits, verify material compatibility with heat transfer fluids and operating temperatures. Periodically inspect threaded joints as part of routine maintenance.

## FAQ

### How much does the Hewalex KS 3/4” screw connection 42.01.00 cost, and is it available for purchase?

The price is 11.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 17 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 07.07.2026 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 Hewalex 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 Hewalex 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/11825962/67227552_large.webp