# Anti-freeze Valve Samee QS DN 40 for Heat Pumps

**URL:** https://aio.lv/en/product--samee-toqsd40--11836087
**Data updated:** 2026-03-09 14:49 (EET)
**Category:** Heat pumps
**Manufacturer:** Samee
**Manufacturer code:** TOQSD40
**EAN:** 5904806192103
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 136.99 €
**Prices and availability valid until:** 2026-07-07 23:59
**Price without VAT (21%):** 113.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--samee-toqsd40--11836087

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.06.2026 | free |
| Pickup points | 02.07.2026 | 1.99 EUR |
| Courier delivery to door | 02.07.2026 | 4.99 EUR |

## Summary description

Anti-freeze valve Samee QS DN 40 designed for integration with heat pump systems. Model TOQSD40 provides DN 40 nominal diameter and is intended to prevent freezing in hydronic circuits by controlling flow or bypass as part of system protection. Suitable for residential and light-commercial heat pump installations where frost protection of piping and components is required.

## Long description

The Anti-freeze Valve Samee QS DN 40 for Heat Pumps is a compact hydraulic component designed to protect hydronic circuits in heat pump installations from freezing. Intended for use where frost protection is required, this valve integrates into residential and light-commercial systems to control flow or provide bypass pathways, helping to maintain appropriate fluid movement and prevent ice formation in pipes and components.
Advantages
This valve offers a nominal DN 40 passage compatible with standard piping sizes used in heat pump systems, enabling straightforward integration. Its design focuses on reliable frost protection by regulating flow or opening a bypass when necessary, reducing the risk of damage to pumps, heat exchangers and piping. The Samee QS valve is suitable for installations where space is limited and where a simple, maintenance-friendly solution for freeze prevention is required.
Suitable for
Residential heat pump installations requiring frost protection
Light-commercial hydronic systems with seasonal freezing risk
Integration into recirculation or bypass circuits to maintain minimum flow
Protection of outdoor and semi-exposed piping and heat pump components
Key specifications
Nominal diameter: DN 40
Function: anti-freeze / flow control / bypass for frost protection
Compatibility: designed for heat pump hydronic circuits and standard DN 40 piping
Typical installation location: inline within supply/return or bypass branches
Construction: compact valve body suitable for tight installation spaces
How to use
Install the Anti-freeze Valve Samee QS DN 40 in the hydronic circuit at a location recommended for frost protection, typically on the return line, bypass branch or near vulnerable components. Ensure pipe connections match DN 40 dimensions and follow local plumbing and heating codes. Commission the system according to the heat pump manufacturer’s instructions and verify the valve operates as part of the flow regulation or bypass strategy to maintain minimum circulation during cold conditions. Periodic visual inspections and adherence to routine system maintenance will help ensure continued performance.
Usage recommendations
For effective freeze protection, use the valve together with proper system controls, insulation on exposed piping and an appropriate heat transfer fluid. Confirm compatibility with the heat pump manufacturer’s guidelines and, if needed, consult a qualified HVAC technician for configuration and commissioning.

## FAQ

### How much does the Anti-freeze Valve Samee QS DN 40 cost, and is it available for purchase?

The price is 136.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 29.06.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Anti-freeze Valve Samee QS DN 40 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 Samee 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 Samee 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/11836087/67235783_large.webp