Product selection recommendations for control valves

Select the right control valve

The following conditions should be taken into consideration in order to select the right solution for your application:

  • Working conditions
  • Maximum flow
  • Minimum flow
  • Continuous flow
  • Maximum inlet pressure
  • Minimum inlet pressure
  • Wanted outlet pressure
  • Pipe size

Our online sizing tool provides guidelines for the selection.

Go to control valves product pages.

Strainers and isolating valves

It is highly recommended to install a protection strainer on the inlet side of the control valve, to filter out impurities that could damage the control valve, or cause loss of control. Isolating valves on each side of the control valve facilitate commissioning and maintenance. Installation of by-pass for keeping up the supply, in case of main valve maintenance on the control valve is recommended.

AVK gate valves are available in a vast number of configurations. For isolating control valves, we recommend our standard flanged gate valve with short face-to-face length or the variant prepared for actuator. Find in-depth information about our gate valves at the gate valve section.

Air valves

In many cases it is recommendable to install an air valve at the inlet of the control valve in order to avoid trapped air pockets in the system, and air in the system in general will cause the valve to regulate with less accuracy. Air pockets may cause increased energy consumption and operation costs, pressure loss and increased risk of water hammer.

AVK air valves are available in many variants. For control valve installations, we recommend our combination air valves of ductile iron or reinforced polyamide.


First section well installed in large pressure management project

Delivering power to wells in an underground water supply network is no easy task, which also turned out to be the reality for Strømmen Vandværk in Randers, Denmark.
See all cases

Download brochure

Product range

Get a brief introduction to AVK International and an overview of our product range for water supply, wastewater treatment, gas supply and fire protection. 
Our website uses cookies for statistical analysis, to improve our website and serve you optimally. By visiting our website, you consent to our and third party use of cookies as described in our privacy and cookie policy.
Read more