The Danfoss motorized control valves range (MCV) for district heating is applicable for use in water and glycol-based heating and cooling systems.

The motorized control valves ensure stable and accurate control of water. This in turn improves temperature control, leading to enhanced comfort for the end-user. The motorized control valves range comprises both regular and pressure-relieved control valves operating with high differential pressure.

In energy efficiency terms, optimal performance of temperature control can lead to decreasing heat loss and therefore reduced CO2 emissions.

Good control ratios and rapid response times to changes in domestic hot water supply requirements are just some of the features needed to ensure optimum control performance.

The range of globe valves stands for progress in a number of essential areas, which meet the increasingly stricter requirements for control performance, features, compact design and price/value ratio. 

The valve series is available in different materials, which fulfill the heavy-duty requirements, and is supplied with different connections. Today we are able to offer a range of seated valves for use in the above-mentioned applications.

Features and benefits

Excellent control performance in meeting the most difficult control requirements in district heating, while still providing instantaneous hot water

Easy selection, installation, commissioning and maintenance lead to cost, time and effort savings

Built-in thermic and overload protection of the electromotor radically reduces the risk of operational failure in either the valve or the system as a whole

Documents

Type Name Language Valid for Updated Download File type
Data sheet - AI VF2, VF3 (DN 15-300) Romanian, Moldavian, Moldovan Multiple 24 Aug, 2018 1.9 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) Italian Multiple 24 Aug, 2018 1.8 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) Estonian Multiple 24 Aug, 2018 1.8 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) Latvian Multiple 24 Aug, 2018 1.9 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) Slovak Multiple 24 Aug, 2018 1.9 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) Polish Multiple 24 Aug, 2018 1.9 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) Croatian Multiple 24 Aug, 2018 1.8 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) English Multiple 24 Aug, 2018 1.8 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) Danish Multiple 24 Aug, 2018 1.9 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) French Multiple 24 Aug, 2018 1.9 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) Swedish Multiple 24 Aug, 2018 1.9 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) Czech Multiple 24 Aug, 2018 1.8 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) Chinese (CN) Multiple 24 Aug, 2018 1.9 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) Turkish Multiple 24 Aug, 2018 1.8 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) Bulgarian Multiple 24 Aug, 2018 1.9 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) Hungarian Multiple 24 Aug, 2018 1.8 MB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) Lithuanian Multiple 24 Aug, 2018 949.5 KB .pdf
Data sheet - AI VF2, VF3 (DN 15-300) Slovenian Multiple 24 Aug, 2018 1.8 MB .pdf
Data sheet - AI VL2, VL3 Russian Multiple 24 Aug, 2018 731.5 KB .pdf
Data sheet - AI VL2, VL3 Swedish Multiple 24 Aug, 2018 1.2 MB .pdf
Data sheet - AI VL2, VL3 Romanian, Moldavian, Moldovan Multiple 24 Aug, 2018 1.2 MB .pdf
Data sheet - AI VL2, VL3 Slovak Multiple 24 Aug, 2018 1.2 MB .pdf
Data sheet - AI VL2, VL3 Croatian Multiple 24 Aug, 2018 1.2 MB .pdf
Data sheet - AI VL2, VL3 Hungarian Multiple 24 Aug, 2018 1.1 MB .pdf
Data sheet - AI VL2, VL3 German Multiple 24 Aug, 2018 1.2 MB .pdf
Data sheet - AI VL2, VL3 French Multiple 24 Aug, 2018 1.2 MB .pdf
Data sheet - AI VL2, VL3 Italian Multiple 24 Aug, 2018 1.1 MB .pdf
Data sheet - AI VL2, VL3 Lithuanian Multiple 24 Aug, 2018 1.2 MB .pdf
Data sheet - AI VL2, VL3 Slovenian Multiple 24 Aug, 2018 1.1 MB .pdf
Data sheet - AI VL2, VL3 Polish Multiple 24 Aug, 2018 1.2 MB .pdf
Data sheet - AI VL2, VL3 German Multiple 24 Aug, 2018 1.2 MB .pdf
Data sheet - AI VL2, VL3 English Multiple 24 Aug, 2018 1.2 MB .pdf
Data sheet - AI VL2, VL3 Spanish, Castilian Multiple 24 Aug, 2018 1.1 MB .pdf
Data sheet - AI VL2, VL3 Estonian Multiple 24 Aug, 2018 1.2 MB .pdf
Data sheet - AI VL2, VL3 Bulgarian Multiple 24 Aug, 2018 1.2 MB .pdf
Data sheet - AI VL2, VL3 Czech Multiple 24 Aug, 2018 1.2 MB .pdf
Data sheet - AI VL2, VL3 Техническое описание Ukrainian Ukraine 24 Aug, 2018 1.5 MB .pdf
Data sheet - AI VRB 2, VRB 3 Chinese (CN) Multiple 24 Aug, 2018 1.1 MB .pdf
Data sheet - AI VRB 2, VRB 3 German Multiple 24 Aug, 2018 1.1 MB .pdf
Data sheet - AI VRB 2, VRB 3 French Multiple 24 Aug, 2018 1.0 MB .pdf
Data sheet - AI VRB 2, VRB 3 Spanish, Castilian Multiple 24 Aug, 2018 1.0 MB .pdf
Data sheet - AI VRB 2, VRB 3 Italian Multiple 24 Aug, 2018 999.1 KB .pdf
Data sheet - AI VRB 2, VRB 3 Swedish Multiple 24 Aug, 2018 1.0 MB .pdf
Data sheet - AI VRB 2, VRB 3 Lithuanian Multiple 24 Aug, 2018 1.0 MB .pdf
Data sheet - AI VRB 2, VRB 3 Estonian Multiple 24 Aug, 2018 1.0 MB .pdf
Data sheet - AI VRB 2, VRB 3 Croatian Multiple 24 Aug, 2018 1.0 MB .pdf
Data sheet - AI VRB 2, VRB 3 Romanian, Moldavian, Moldovan Multiple 24 Aug, 2018 1.0 MB .pdf
Data sheet - AI VRB 2, VRB 3 Hungarian Multiple 24 Aug, 2018 1.0 MB .pdf
Data sheet - AI VRB 2, VRB 3 Polish Multiple 24 Aug, 2018 1.0 MB .PDF
Data sheet - AI VRB 2, VRB 3 Czech Multiple 24 Aug, 2018 1.0 MB .pdf
Data sheet - AI VRB 2, VRB 3 Slovak Multiple 24 Aug, 2018 1.0 MB .pdf
Data sheet - AI VRB 2, VRB 3 Bulgarian Multiple 24 Aug, 2018 1.0 MB .pdf
Data sheet - AI VRB 2, VRB 3 Slovenian Multiple 24 Aug, 2018 995.6 KB .pdf
Data sheet - AI VRB 2, VRB 3 Danish Multiple 24 Aug, 2018 1.0 MB .pdf
Data sheet - AI VRB 2, VRB 3 English Multiple 24 Aug, 2018 1.0 MB .pdf
Data sheet - AI VRB 2, VRB 3 (Generation 2009) German Multiple 24 Aug, 2018 1.1 MB .pdf
Data sheet - AI VRB 2, VRB 3 (Generation 2009) Russian Multiple 24 Aug, 2018 758.5 KB .pdf
Data sheet - AI VRB 2, VRB 3 Тезническое описание Ukrainian Ukraine 24 Aug, 2018 660.7 KB .pdf
Data sheet - AI VRG 2, VRG 3 Slovenian Multiple 24 Aug, 2018 873.4 KB .pdf
Data sheet - AI VRG 2, VRG 3 Croatian Multiple 24 Aug, 2018 877.0 KB .pdf
Data sheet - AI VRG 2, VRG 3 Turkish Multiple 24 Aug, 2018 847.8 KB .pdf
Data sheet - AI VRG 2, VRG 3 Bulgarian Multiple 24 Aug, 2018 1.1 MB .pdf
Data sheet - AI VRG 2, VRG 3 Romanian, Moldavian, Moldovan Multiple 24 Aug, 2018 886.8 KB .pdf
Data sheet - AI VRG 2, VRG 3 Hungarian Multiple 24 Aug, 2018 833.0 KB .pdf
Data sheet - AI VRG 2, VRG 3 Chinese (CN) Multiple 24 Aug, 2018 977.6 KB .pdf
Data sheet - AI VRG 2, VRG 3 German Multiple 24 Aug, 2018 833.4 KB .pdf
Data sheet - AI VRG 2, VRG 3 French Multiple 24 Aug, 2018 892.8 KB .pdf
Data sheet - AI VRG 2, VRG 3 Spanish, Castilian Multiple 24 Aug, 2018 832.2 KB .pdf
Data sheet - AI VRG 2, VRG 3 Italian Multiple 24 Aug, 2018 832.5 KB .pdf
Data sheet - AI VRG 2, VRG 3 Swedish Multiple 24 Aug, 2018 872.8 KB .pdf
Data sheet - AI VRG 2, VRG 3 Lithuanian Multiple 24 Aug, 2018 976.4 KB .pdf
Data sheet - AI VRG 2, VRG 3 Latvian Multiple 24 Aug, 2018 936.3 KB .pdf
Data sheet - AI VRG 2, VRG 3 Estonian Multiple 24 Aug, 2018 865.3 KB .pdf
Data sheet - AI VRG 2, VRG 3 Slovak Multiple 24 Aug, 2018 863.3 KB .pdf
Data sheet - AI VRG 2, VRG 3 Czech Multiple 24 Aug, 2018 834.1 KB .pdf
Data sheet - AI VRG 2, VRG 3 Polish Multiple 24 Aug, 2018 894.4 KB .pdf
Data sheet - AI VRG 2, VRG 3 English Multiple 24 Aug, 2018 831.1 KB .pdf
Data sheet - AI VRG 2, VRG 3 (Generation 2009) German Multiple 24 Aug, 2018 980.8 KB .pdf
Data sheet - AI VRG 2, VRG 3 (Generation 2009) Russian Multiple 24 Aug, 2018 661.2 KB .pdf
Data sheet - AI VRG 2, VRG 3 Техническое описание Ukrainian Ukraine 24 Aug, 2018 626.6 KB .pdf

Tools and apps

Application guide

FAQ

What is the difference between a pressure relieved and a none pressure relieved valve?

At the same dp over the valve, we can close the pressure relieved valve with much lower force. The real benefit is that in most cases we can offer one actuator for the whole valve range.

How does the rangeability affect the valve?

The rangeability of a control valve expresses how stable the control characteristic of the valve is. Rangeability is a measure of the minimum controllable flow the valve is able to handle. It is defined as the ratio of maximum controllable flow to minimum controllable flow at a constant pressure drop. The higher a control ratio of a control valve, the better the control capability of the valve.

Can I get a clear overview of valve type (DN) – control ratio gathered in one table?

We have this information in our data sheets where it is shown dependent on DN in a technical table for every control valve. Please follow the link below.
http://district-heating.danfoss.com/products/motorised-control-valves/range/

What is the benefit of special stainless steel seat-cone on VFS2?

Special stainless steel seat and cone prevents erosion and cavitation phenomena. Seat and cone are also guided what means less vibrations and better sealing.

Why should I choose soft sealing valves?

Soft sealing valves, also known as bubble tight valves, insure no leakage which again leads to huge energy savings. No leaking is also related to no pressure loss, meaning the pump does not have to work all the time.

Do large VF3 valves have soft or metal to metal sealing?

Patented construction of large VF3 valves DN 200; DN 250 & DN 300 have soft sealing construction and have therefore much better sealing than less performed metal to metal valve types.
Danfoss large valve have beside of main A-AB port also soft sealed B-AB port.

I can see relatively big maximum differential closing pressure in data sheet. How is this possible, is this pressure relieved version of valve?

We have two types of actuators. One type (AMV(E) 685) has 5.000N and another one (AMV(E) 855) 15.000N.

Is it possible to close third (B) port on VF3 DN 300 as we need to have kvs around 1250 m3/h.

We are just in testing procedure to proof what we think. As mentioned above, also B port is soft sealed and therefore we need to test if soft sealing will create any problems (vacuum). However we plan to make accessory as blind flange for DN 300, screws and instructions how to make 3 port valve suitable to operate as 2 port valve.

Case studies

  • Solar heating plant reduces CO2 emissions by 15,700 tonnes annually
    Solar heating plant reduces CO2 emissions by 15,700 tonnes annually

    The world’s largest solar heating plant in Silkeborg, Denmark harnesses energy to heat the homes and workplaces of 40,000 citizens. It supplies 18-20% of the annual heat consumption in the city of Silkeborg, Denmark, which has an ambitious target of CO2 neutrality in heat production by the year 2030.

  • High-end climate solutions in Waldorf Astoria by Hilton, Amsterdam, the Netherlands

    Building: Hotel
    Application: Hydronic balancing and control for radiator heating and fan coil cooling
    Challenge: Establish top level comfort and minimum energy consumption for heating and cooling
    Solution: Fan-coil units for cooling; 8 heating risers and radiators equipped with Danfoss products.

  • HVAC control at Katowice business centre, Poland

    Katowice Business Centre is a modern office building where Danfoss hydronic balancing solutions are used; AB-QM balancing and control valves in combination with revolutionary NovoCon® actuators.

  • Energy comfort in Prime Tower, Zurich, Switzerland

    The Prime Tower in Zurich is a building of many records. With its 126 meters it is the tallest building in Switzerland with 36 floors and 40,000 square meters accommodating mostly offices. And with its more than 6,000 AB-QM valves it is also one of the biggest heating and cooling installations ever designed and installed by Danfoss.

Videos