# Rittal 3301940 balancing valve for air/water heat exchanger, 3/4"x3"

**URL:** https://aio.lv/en/product--rittal-3301940--10811585
**Data updated:** 2026-04-28 18:47 (EEST)
**Category:** Computer Component Accessories
**Manufacturer:** Rittal
**Manufacturer code:** 3301940
**EAN:** 4028177448667
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 93.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 77.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rittal-3301940--10811585

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.99 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

Rittal 3301940 is a balancing (adjusting) valve designed for air/water heat exchangers. The component, with an indicated weight of 180 g, is intended to regulate flow rates and achieve hydraulic balance in cooling or heating circuits of HVAC and industrial enclosures. It is suitable for use in heat exchanger installations requiring a 3/4"x3" connection.

## Long description

The Rittal 3301940 balancing valve is designed for use in air-to-water heat exchanger circuits, ensuring equal flow distribution when multiple heat exchangers are connected in the same water cooling loop. It is a compact mechanical valve suitable for installation in chilled-water systems to stabilise coolant flow to each exchanger.
Advantages
The valve provides accurate hydraulic balancing when more than one heat exchanger is used, helping to maintain uniform cooling performance across multiple units. Its compact, lightweight construction allows straightforward installation in existing water cooling circuits and reduces the need for repeated manual adjustments.
Suitable for
Air/water heat exchangers in data center or electronic cooling applications
Water cooling circuits with two or more heat exchangers
Retrofit installations where equalised flow to each exchanger is required
When it may not be suitable
This valve is intended specifically for hydraulic balancing in chilled-water air/water heat exchanger systems; it is not a general-purpose control valve for complex proportional flow control or for use with aggressive fluids. For single-exchanger systems or applications requiring active electronic flow control, a different component may be more appropriate.
Key specifications
Connection size: 3/4" x 3 (as specified for compatibility with standard exchanger ports)
Application: hydraulic balancing in water cooling circuits with multiple heat exchangers
Weight: approximately 180 g
How to use
Install the balancing valve in the supply or return line to each air/water heat exchanger following system piping practices and manufacturer installation guidelines. Adjust the valve setting so that the flow rate through each exchanger matches the desired value; this may be verified using flow meters or by measuring temperature differentials across exchangers. After setting, secure the valve position to prevent unintentional changes.
What to consider before purchase
Ensure the valve connection size and thread type match your heat exchanger plumbing
Confirm the valve's suitability for the coolant used (water or water-glycol mixtures)
Evaluate whether passive hydraulic balancing meets your system control requirements
Usage recommendations
Use the balancing valve as part of a planned commissioning process: measure baseline flows, adjust each valve to achieve uniform distribution, and document final settings to simplify future maintenance or troubleshooting.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.18 kg |

## FAQ

### How much does the Rittal 3301940 balancing valve for heat exchanger cost, and is it available for purchase?

The price is 93.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 178 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 20.07.2026 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. 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 Rittal 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 Rittal 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

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