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Danfoss

Self-Acting Differential Pressure Relief Controller AVPA

Self-Acting Differential Pressure Relief Controller AVPA DN15-DN50 (PN 16)

The controller has a control valve, an actuator
with one control diaphragm and handle for differential pressure setting.

Features and benefits

  • AVPA is a self-acting differential pressure relief
    controller primarily for use in district heating
    systems. 

  • The controller is normally closed and
    opens on rising differential pressure.

BIM drawings

Find BIM drawings here.

Documents

Documents
Type Name Language Valid for Updated Download File type

Tender text

Self-Acting Differential Pressure Relief Controller AVPA DN15-DN50
  • Bypass valve are to be selected on the required bypass flow rate and opening pressure loss
  • The valves shall be capable of the required opening pressure within the published spring range
  • The valves shall be installed with a partner valve to enable bypass flow measurement and flow limiting if necessary
  • The partner valves shall be fixed orifice in DN15-50 and variable orifice in DN50 (high flow) to DN400

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