# Angle valve No name OT3901LB051/2 40 mm thermostatic left M30x1.5 for CU/PEX connections, matte black

**URL:** https://aio.lv/en/product--no-name-ot3901lb0512--11827868
**Data updated:** 2026-03-09 11:17 (EET)
**Category:** Heating Radiators
**Manufacturer:** No name
**Manufacturer code:** OT3901LB051/2
**EAN:** 5907637357277
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 72.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 59.91 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--no-name-ot3901lb0512--11827868

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Thermostatic angle valve No name OT3901LB051/2, 40 mm compact body, left-handed orientation with M30x1.5 thread. Designed for connection to copper (CU) and PEX piping, it provides flow control and temperature regulation for radiators or towel warmers. Matte black finish and mono-control design suit modern installations requiring a concealed, corner-mounted valve.

## Long description

The No name OT3901LB051/2 thermostatic angle valve is a compact left-handed valve with a 40 mm body and M30x1.5 threaded connection. Intended for installation on radiator or towel rail circuits, it integrates temperature control and flow regulation in a mono-control design. The valve supports connections to copper (CU) and cross-linked polyethylene (PEX) pipes and features a matte black finish suitable for modern concealed and corner-mounted installations.
Advantages
This thermostatic angle valve offers precise temperature regulation and reliable flow control in a compact form factor suitable for tight installation spaces. The left-handed orientation and M30x1.5 threading facilitate straightforward connection to standard radiator fittings. Compatibility with CU and PEX piping provides installation flexibility, while the matte black finish resists visible wear and matches contemporary bathroom and heating designs.
Suitable for
Radiator connections in residential and commercial heating systems
Towel warmers where space is limited or a corner installation is required
Retrofit projects replacing manual valves with thermostatic control
Installations using copper or PEX supply lines
Key specifications
Orientation: left-handed (angle valve)
Body length: 40 mm compact design
Thread type: M30x1.5 for valve head connection
Piping compatibility: copper (CU) and PEX
Control type: mono-control thermostatic operation
Finish: matte black
How to use
Install the valve at the radiator or towel rail inlet according to standard plumbing practices for angle valves. Ensure the left-handed orientation matches the outlet of the radiator and tighten the M30x1.5 threaded connection securely to the valve head. Connect the supply pipe using the appropriate fittings for copper or PEX piping, following manufacturer guidelines for jointing or compression fittings. After installation, purge air from the system and set the thermostatic control to the desired temperature; the mono-control mechanism will adjust flow to maintain the selected temperature.
Usage recommendations
For reliable operation, verify compatibility of seals and fittings with copper or PEX materials and use recommended torque values when tightening threaded connections. Periodic inspection and system flushing will help maintain thermostatic responsiveness. Use corrosion-resistant fittings in environments with high humidity or aggressive water chemistry.

## FAQ

### How much does the Angle valve No name OT3901LB051/2 40 mm cost, and is it available for purchase?

The price is 72.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 14.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Angle valve No name OT3901LB051/2 40 mm be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 No name 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 No name 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/11827868/67228993_large.webp