AVPL
AVPL(-F) is a self-acting differential pressure controller primarily for use in district heating systems. The controller closes on rising differential pressure.
The controller has a control valve and an actuator with one control diaphragm.
It can be used on primary side of house substations for smaller systems such as one and two-family houses.
The controller could be used to control the differential pressure across radiator systems and similar systems to keep a constant differential pressure even with a variable system resistance kva and/or supply pressure Δp0.
Features and benefits
- Maintains constant differential pressure for stable heating system performance.
- Ideal for small systems like one‑ and two‑family houses.
- Suitable for water and glycolic systems up to 120 °C.