Pressure Retention / Degassing Combo

Pressurisation / Degassing Combo

HY-PD

4 bar

Popular product

Previously HL Hydronics PD-X 40

Hydrun Pressure Maintenance / Degassing Combo for hydronic heating and cooling systems

→ 1-3 days delivery

→ 1-3 hours start-up

→ 1-3 days delivery

→ 1-3 hours start-up

Hydrun Pressure Maintenance / Degassing Combo for hydronic heating and cooling systems

Description

Improves energy efficiency, operational reliability, and service life.

The Hydrun Pressure Maintenance/Degassing Combo combines dynamic pressure maintenance and vacuum degassing in a fully automatic unit. It ensures the correct system pressure at all times—and once the pressure is stable, it removes dissolved gases via a bypass flow for quieter, smoother, and more reliable heating and cooling system operation.

Features

Easy Commissioning

Clear connection logic and preset values reduce on-site time.

Optimized Lifespan

Removes dissolved gases/microbubbles and reduces corrosion, cavitation, and wear in the system.

Reliable Components

Proven, service-friendly components from Grundfos, Danfoss, and Schneider Electric.

Seamless Communication

Modbus TCP, RTU, and BACnet for alarms, status, and logging directly to DDC/BMS as standard.

Flexible expansion

The unit can be installed with both open and closed expansion vessels.

Energy Saving

Save energy by continuously reducing the amount of dirt and magnetite in the system.

Tested by RISE

Function and performance verified in independent tests by Research Institutes of Sweden.

Manufactured in Töcksfors

Swedish manufacturing with traceable quality, short lead times, and quick access to spare parts.

Documents

Technical Information

Models

Model

HY-PD-40

Previous name: PD-X 40

Previous item no.: HL2410

RSK number: 503 40 24

Operating pressure: 0.8 - 4 bar

Pressure class: 10 bar

Operating temperature: 0-70°C

Voltage: 230V single-phase

Fuse: 10 A

Power: 0.75 kW

Communication: Modbus TCP, RTU, and BACnet

Media: Glykol <50%, Etanol <29%

Connections: DN15

Dimensions: D:250 x W:500 x H:750mm

Weight: 32.6 kg

Model

HY-PD-40-AF (Autofill)

Previous name: PD-X 40A

Previous item no.: HL2411

RSK number: 553 30 39

Operating pressure: 0.8 - 4 bar

Pressure class: 10 bar

Operating temperature: 0-70°C

Voltage: 230V single-phase

Fuse: 10 A

Power: 0.75 kW

Communication: Modbus TCP, RTU, and BACnet

Media: Glykol <50%, Etanol <29%

Connections: DN15

Dimensions: D:250 x W:500 x H:750mm

Weight: 32.6 kg

Compatible with

Support

← Nordbygg