# Thermostatic radiator valve set FERRO ZTM31BL, angled, black

**URL:** https://aio.lv/en/product--ferro-ztm31bl--5114250
**Data updated:** 2026-03-07 15:13 (EET)
**Category:** Heating Radiators
**Manufacturer:** FERRO
**Manufacturer code:** ZTM31BL
**EAN:** 5902194995207
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 31.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 26.02 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ferro-ztm31bl--5114250

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

FERRO ZTM31BL is an angled thermostatic radiator valve set in black finish designed for controlling radiator temperature. The set includes angled valve components for connection to heating radiators, offering thermostatic regulation to maintain desired room temperature. Suited for residential and commercial radiator installations requiring temperature control and efficient heat management.

## Long description

FERRO ZTM31BL is an angled thermostatic radiator valve set in a black finish designed to regulate radiator temperature reliably. The set provides thermostatic control for maintaining a selected room temperature by modulating the flow of hot water through the radiator. The angled configuration is suitable for typical wall-mounted radiator connections and the black finish offers a discreet, modern appearance that integrates with contemporary interiors.
Advantages
The thermostatic mechanism enables automatic temperature regulation, reducing the need for manual adjustments and helping to maintain consistent comfort levels. The angled design facilitates easy connection to radiators with side supply lines and simplifies installation in tight wall spaces. The black surface is resistant to visible staining and pairs well with dark fixtures, providing a uniform look. Components are designed for compatibility with common radiator systems and for smooth valve operation.
Suitable for
 Residential panel and column radiators with angled side connections
 Commercial spaces where individual radiator temperature control is required
 Renovation projects seeking a coordinated black hardware finish
 Rooms where automatic thermostatic regulation improves energy efficiency
Key specifications
 Type: angled thermostatic radiator valve set
 Finish: black
 Function: thermostatic temperature control by modulating flow
 Connection orientation: angled (90°) for side radiator inlets
 Application: hot water central heating systems for room temperature control
How to use
Install the valve set on the radiator supply and return connections according to the radiator and pipework layout, ensuring angled orientation matches the inlet/outlet positions. After installation, attach a compatible thermostatic head (if not integrated) and set the desired temperature using the head’s scale. The valve will open or close proportionally to maintain the set temperature; occasional manual adjustments may be used to fine-tune comfort levels. Commission the system by bleeding radiators and checking for leaks, then verify correct operation across the heating cycle.
Usage recommendations
For reliable performance, use the valve in systems with clean, treated heating water and follow recommended installation practices, including use of appropriate sealing materials and tightening torques. Periodically check for smooth operation and absence of leaks; remove air from the system after fitting. If replacing an existing valve, confirm thread sizes and connection types before purchase to ensure compatibility with your radiator.

## FAQ

### How much does the FERRO ZTM31BL thermostatic radiator valve set cost, and is it available for purchase?

The price is 31.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 53 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 06.07.2026 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 FERRO 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 FERRO 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/5114250/41624583_large.webp