Danfoss HIU Spare Parts Danfoss AVPL DN15 Differential Pressure Control Valve – HIU

The Danfoss AVPL is a self-acting differential pressure controller used to maintain a constant differential pressure across heating circuits and compact district-heating consumer units, including HIU applications. Danfoss documents AVPL DN15 versions with a 0.05–0.25 bar setting range. Common variants include 003L5030 (Kv 1.0) and 003L5031 (Kv 1.6). The valve is installed on the return side and supplied with impulse-tube components depending on version. Do not add a specific KVS or Danfoss code to Wilson Energy's title until the code on the stocked valve is checked.