01 · PUMPING STATIONS · PRESSURE BOOSTING
ANHEL pressure-boosting units
Automatic pressure-boosting unit (APBU) — a hydraulic module with pumps, an expansion vessel and intelligent automation. Maintains a constant system pressure to ±0.01 bar, with automatic deaeration and compensation of thermal expansion.
02 · Technical specifications
Series parameters
Reference characteristics. The final configuration is sized to the project brief.
Pumps in parallel
2 – 3standardControl type
DOL / VFD / per-pump VFDwith controllerPressure-holding accuracy
up to ±0.01barMax. fluid temperature
120°CMax. working pressure
up to 25barExpansion vessel volume
200 – 10 000LMains voltage
3 × 380VUnit design life
min. 10years
03 · DESCRIPTION
Purpose and operating principle
ANHEL automatic pressure-boosting unit (APBU) — a hydraulic module with pumps, an expansion vessel and intelligent automation. Maintains a constant pressure in closed heating and cooling networks to ±0.01 bar.
Automatic deaeration, compensation of thermal expansion and automatic make-up metering — no manual maintenance required. A 7-inch operator LCD displays the hydraulic schematic and the pressure trend; Modbus / Ethernet integration delivers the data to the site SCADA.
03 · APPLICATIONS
Where it is deployed
Closed heating and cooling networks in residential, commercial and industrial buildings, central heat substations, boiler houses and ventilation systems.
Central heat substations
Pressure holding in district heat-substation loops
Boiler houses
Deaeration and make-up in closed networks
Multi-occupancy residential
Closed heating and cooling loops in apartment buildings
Industrial facilities
Process heating networks in production plants
Ventilation systems
Pressure holding in fresh-air heating loops
Cooling loops
Cooling supply systems in mixed-use buildings
05 · ADVANTAGES
Why ANHEL
High-precision automation, reliable hydraulics and fully redundant controls.
Precise pressure holding
Control algorithms keep the working pressure inside a tight band of ±0.01 bar.
Built to design brief
Unit parameters, expansion-vessel volume and automation built to the project parameters.
Heavy-duty frame and AISI 304 manifold
Frame in 4-mm high-tensile steel, manifold in stainless steel AISI 304.
Membrane expansion vessel
Volume 200–10 000 L matched to the system. Optional membrane-rupture sensor and intermediate vessel.
Automatic deaeration
Air is removed from the heat carrier automatically — no manual maintenance.
Fault-tolerant automation
Self-diagnostics, redundant controls, Modbus / Ethernet for SCADA. 7" LCD shows the hydraulic schematic and pressure trend.
08 · PROJECTS
Already in use at
09 · DOCUMENTATION
Documents and certificates
Specification sheet, certificates and manual — for design and acceptance.