# TDM Brass Inner Sleeve 1 1/4" x 1/2" Internal Thread

**URL:** https://aio.lv/en/product--tdmbrass-112sp412--12505114
**Data updated:** 2026-06-10 09:31 (EEST)
**Category:** Home & DIY Accessories
**Manufacturer:** tdm\_brass
**Manufacturer code:** 112SP412
**EAN:** 4770364161056
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.99 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 5.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--tdmbrass-112sp412--12505114

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Wednesday | free |
| Pickup points | 13.07.2026 | 1.89 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

The TDM Brass inner sleeve is a high-quality plumbing fitting designed for connecting pipes with different diameters. Featuring 1 1/4" and 1/2" internal threads, this durable brass component ensures a secure and leak-proof connection in water supply and heating systems. Its robust construction provides excellent resistance to corrosion and pressure, making it an essential part for professional plumbing installations and repairs.

## Long description

The TDM Brass inner sleeve is a precision-engineered plumbing fitting designed to facilitate the connection of pipes with varying diameters. Crafted from high-quality brass, this component is specifically built to provide a reliable and durable link within water supply and heating infrastructure. Its robust design ensures that it can withstand the rigors of daily operation while maintaining a secure, leak-proof seal, making it a dependable choice for both professional plumbing installations and routine maintenance tasks.
Advantages
The primary benefit of this brass inner sleeve is its exceptional material durability, which offers superior resistance to corrosion and mechanical stress compared to inferior alternatives. The precision-cut internal threads ensure a smooth and tight fit, minimizing the risk of leaks and reducing the time required for installation. Its compact and sturdy construction allows for seamless integration into existing piping systems, providing a long-lasting solution that maintains structural integrity under varying pressure conditions.
Suitable for
Connecting pipes of different diameters in residential water supply systems
Integrating components within central heating networks
Plumbing repairs requiring a transition between 1 1/4 inch and 1/2 inch connections
Professional plumbing installations where high-quality brass fittings are required
When it may not be suitable
This fitting is not intended for use in systems involving highly aggressive chemical substances that may react with brass. It is also not suitable for high-pressure industrial steam applications or systems where the pipe material is incompatible with brass, which could lead to galvanic corrosion.
Key specifications
Material: High-quality brass
Connection type: Internal thread
Thread sizes: 1 1/4 inch and 1/2 inch
Application: Water supply and heating systems
How to use
To install the TDM Brass inner sleeve, ensure that the pipe ends are clean and free of debris. Apply an appropriate thread sealant, such as PTFE tape or a liquid pipe sealant, to the male threads of the pipes being connected. Carefully thread the pipes into the inner sleeve by hand to ensure the threads are properly aligned, then tighten using a suitable wrench. Avoid overtightening, as this may damage the threads or the fitting itself. Once installed, pressurize the system slowly to check for any signs of leakage.
What to consider before purchase
Verify the thread sizes of your existing pipes to ensure compatibility with the 1 1/4 inch and 1/2 inch specifications
Check the compatibility of your pipe material with brass to prevent galvanic corrosion
Ensure the fitting is rated for the operating pressure and temperature of your specific system
Usage recommendations
Always inspect the threads for any damage before installation and ensure that the connection is properly supported to prevent unnecessary mechanical strain on the fitting.

## FAQ

### How much does the TDM Brass Inner Sleeve 1 1/4" x 1/2" cost, and is it available for purchase?

The price is 6.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 34 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 Wednesday 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 tdm\_brass 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 tdm\_brass 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/12505114/68845883_large.webp