AVPQ (PN16)

AVPQ is a self-acting differential pressure and flow controller primarily for use in district heating systems. The controller closes on rising differential pressure or when set max. flow is exceeded.

The controller has a control valve with adjustable flow restrictor, an actuator with two control diaphragms and handle for differential pressure setting (fixed setting version (available on special request) is without handle).

Main data:

• DN 15-32
  
• k_VS 1.6-10 m³/h
  
• Flow range: 0.06−7.3 m³/h
  
• PN 16
  
• Setting range (AVPQ): 0.1-0.5 bar / 0.2-1.0 bar
  
• Flow restrictor Δp_b: 0.2 bar
  
• Temperature:
  

  Circ. water / glycolic water up to 30 %: 2 … 150 °C

• Connections:
  

  - Ext. thread (weld-on, thread and flange tailpieces)