# Actuator DANFOSS TWA-K/NC 088H3142 – spring return thermal actuator for valves

**URL:** https://aio.lv/en/product--danfoss-088h3142--4518603
**Data updated:** 2026-02-12 14:10 (EET)
**Category:** Control Systems
**Manufacturer:** DANFOSS
**Manufacturer code:** 088H3142
**EAN:** 5702420049649
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 23.49 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 19.41 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--danfoss-088h3142--4518603

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 18.06.2026 | free |
| Pickup points | 25.06.2026 | 1.99 EUR |
| Courier delivery to door | 25.06.2026 | 4.99 EUR |

## Summary description

DANFOSS TWA-K/NC (088H3142) is a spring-return thermal actuator designed for controlling heating and cooling valves. It provides automatic valve operation driven by a thermal element with fail-safe spring return to closed (NC) position. Suitable for use in HVAC systems to regulate flow in radiator or zone valves, offering reliable automatic control and simple mounting on compatible valve bodies.

## Long description

The DANFOSS TWA-K/NC 088H3142 is a spring-return thermal actuator designed to control heating and cooling valves in HVAC systems. The actuator uses a thermal element to move the valve spindle and integrates a mechanical spring to return the valve to the normally closed position if power or thermal input is removed. The compact design enables direct mounting on compatible valve bodies for automatic regulation of radiator or zone valves and supports straightforward installation and maintenance.
Advantages
The actuator offers reliable automatic valve operation with a built‑in fail‑safe spring return to closed position, ensuring system protection in case of power or control signal loss. Its thermal operation provides smooth, proportional movement without the need for complex electronics, and the compact housing simplifies mounting on standard valve bodies. Designed for long service life, the unit minimizes maintenance requirements while delivering consistent performance across typical heating and cooling applications.
Suitable for
Automatic control of radiator valves
Zone valve regulation in HVAC distribution systems
Fail‑safe shutoff applications requiring normally closed operation
Retrofit projects with compatible valve bodies
Key specifications
Operation principle: thermal-driven actuator with mechanical spring return
Fail-safe position: normally closed (NC)
Mounting: direct attachment to compatible valve bodies
Control type: automatic thermal control (no separate electronic drive required)
Typical applications: heating and cooling valve regulation for radiators and zones
Construction: compact housing designed for HVAC environments
How to use
Mount the actuator directly onto a compatible valve body following the valve manufacturer's instructions and ensure correct alignment of the spindle connection. Connect the actuator according to the system's thermal or control setup; the unit operates by responding to thermal input and will return the valve to the closed position via the internal spring when thermal input is removed. Verify motion and sealing after installation and perform system checks under typical operating conditions to confirm proper regulation.
Usage recommendations
Use the actuator in accordance with applicable HVAC design guidelines and the valve manufacturer's installation instructions. Ensure the actuator is used within recommended ambient temperature ranges and installed on compatible valve types to achieve expected performance and fail‑safe behavior. For periodic inspection, check mechanical connections and verify actuator movement; replace the unit if mechanical wear or loss of thermal response is observed.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.169 kg |

## FAQ

### How much does the Actuator DANFOSS TWA-K/NC 088H3142 cost, and is it available for purchase?

The price is 23.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 180 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 18.06.2026 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 DANFOSS 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 DANFOSS 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/4518603/51230475_large.webp