AVQM (PN 25)

AVQM is a self-acting flow controller with integrated control valve developed for the use in district heating / cooling systems. The controller prevents flow to exceed set max flow. In a combination with electrical actuators AMV(E) and ECL electronic controllers the flow and temperature can be controlled to achieve highest energy savings.

AVQM has a control valve with adjustable flow limiter, connection neck for electrical actuator and a pressure actuator with one control diaphragm.

Controllers are used together with Danfoss electrical actuators:
  - AMV 150¹⁾
  - AMV(E) 10¹⁾ / AMV(E) 20 / AMV(E) 30
  - AMV(E) 13¹⁾ / AMV(E) 23 / AMV(E) 33 with spring return function
  - AMV(E) 23 SU (spring up)
  - AMV 20 SL / AMV 23 SL / AMV 30 SL with stroke limitation
¹⁾ AMV 150 / AMV(E) 10 / AMV(E) 13 can be combined with DN 15 controller only.

AVQM combined with AMV(E) 13, AMV(E) 23 (SL) or AMV(E) 33 (SL) has been approved according to DIN EN 14597.

Main data:

• DN 15-50
  
• k_VS 0.4-25 m^₃/h
  
• Flow range: 0.015-14 m³/h
  
• PN 25
  
• Differential pressure over control valve Δp_MCV: 0.2 bar
  
• Temperature:
  

   - Circulation water / glycolic water up to 30 %: 2 ... 150 °C

• Connections:
  

   - Ext. thread (weld-on, thread and flangetailpieces)
   - Flange