Pressure reduction controllers

Pressure reduction controllers consist of a valve and a pressure actuator. They are used in water and steam applications.

The pressure reduction is set to absolute pressure. It is installed in the flow, before the application where pressure needs to be reduced.

The pressure reducer is required in network locations where the pressure is very high and/or varies a lot.

This typically occurs close to pumping stations in the network. Reducing high pressure enables accurate and stable temperature control of the application behind the pressure reducer.

Features and benefits

Eliminates pressure variations and provide optimum operating conditions with improved temperature control quality

Made for demanding systems, resistant to corrosion, cavitation and dirt

Connected system is protected against pressure surges, fluctuations, cavitation and noise

Differential pressure and flow controllers in district heating or cooling systems (variable flow)

Balance your network, save energy and improve end user comfort by hydronic balancing and control of district energy networks.

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Documents

Type	Name	Language	Valid for	Updated	Download	File type
Data sheet	AFA-VFG2	English	Multiple	14 Oct, 2018	1.1 MB	.pdf
Data sheet	AFD-VFG 2, VFGS 2 (21)	English	Multiple	02 Dec, 2018	1.9 MB	.pdf
Data sheet	AFP/VFG 2 (21)	English	Multiple	14 Oct, 2018	1.5 MB	.pdf
Data sheet	AFPA-VFG2	English	Multiple	14 Oct, 2018	1.0 MB	.pdf
Data sheet	AVD, AVDS (PN 25)	English	Multiple	13 Dec, 2016	1.1 MB	.pdf
Brochure	Improved temperature control and hydronic balance for your benefit	English	Multiple	03 Dec, 2014	612.8 KB	.pdf
Brochure	Let motorized intelligence solve your application challenges	English	Multiple	29 Mar, 2015	3.2 MB	.pdf
Data sheet	Pilot-controlled differential pressure and flow controller PCVPQ	English	Multiple	14 Oct, 2018	1.2 MB	.pdf
Data sheet	Pilot-controlled differential pressure controller PCVP	English	Multiple	14 Oct, 2018	1.0 MB	.pdf
Data sheet	Pilot-controlled differential pressure reducer PCVD	English	Multiple	14 Oct, 2018	1.0 MB	.pdf
Data sheet	Pilot-controlled flow controller PCVQ	English	Multiple	14 Oct, 2018	958.4 KB	.pdf
Brochure	Save energy with efficient and safe steam distribution	English	Multiple	11 Jul, 2016	1.2 MB	.pdf
Brochure	Track down and solve any hydronic imbalance with self acting controls	English	Multiple	29 Mar, 2015	14.7 MB	.pdf
Data sheet	VFG / VFGS /VFU Valves	English	Multiple	14 Oct, 2018	1.2 MB	.pdf

Tools and apps

Heat Selector

Danfoss Heat Selector is the best-in-class online selection tool that optimizes planning process for heating application experts.

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Application guide

District heating application guide

We share experience, application expertise and make recommendations on optimum performing DH applications and key applied control components

FAQ

Can I limit a max flow with a differential pressure regulator?

Yes you can. Open the control valve fully and set the max flow by adjusting the differential pressure. You can also calculate the appropriate differential pressure, but you need to know the exact capacity of the control valve.

We design an installation and need lengths of valves from a project specification.

We produce valves with a standard length. You can also find the measures in our datasheet or download 2D and 3D CAD drawing models from our product presentations. Please go to our product catalog where you will find links to documentation and drawings - follow the below link.

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Application: Production of heating, cooling and domestic hot water
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