Modern heating systems are becoming increasingly efficient and compact, yet they demand stricter water quality control than ever before. With manufacturers implementing rigid guidelines for boilers and heat exchangers alongside established regulatory frameworks, maintaining correct water purity is essential to prevent costly equipment failures and soaring energy bills.
Regulatory Safeguards Against Oxidation and Debris
Regulations governing heating water quality exist to protect complex infrastructure from premature wear. According to industry guidelines such as the VDI 2035 standard, integrating a filtration unit into the heating circuit is necessary to intercept damaging debris. Even in newly installed setups, microscopic material residues from manufacturing and installation can compromise the system. Once operational, minute quantities of oxygen introduced via ambient air trigger aggressive oxidation reactions with metal pipes, creating rust and magnetite sludge.
Multi-Stage Filtration and Magnetic Separation
Addressing these threats requires removing both solid particles and entrained air from the water circuit. Specialized components developed by manufacturers like JUDO tackle this challenge through multi-stage separation. The JUDO MAFI filter combines centrifugal separation with high-performance magnets to capture both magnetic and non-magnetic particles, while an automatic vent expels free gases. Meanwhile, units like the JUDO HEIFI-TOP utilize a rotating brush element housed within a spacious chamber to force total water flow through the filtration mesh, trapping micro-bubbles and debris before flushing them away.
Dynamic Vacuum Degassing for Closed Circuits
For systems requiring absolute gas removal, dynamic vacuum degassing systems like the JUDO HEIFI-AIR-FREE lower internal pressure inside a spray chamber to a near-vacuum state. Under these conditions, dissolved gases instantly break out of solution and escape through an integrated vent, effectively reducing the residual gas content of the circulating fluid to zero.
Protecting Municipal Supplies from Backflow Risks
Connecting a closed heating circuit directly to the public drinking water network violates statutory codes including DIN EN 1717 and DIN 1988-100. To prevent contaminated system water from flowing backward into household supplies, specialized filling units like the JUDO HEIFI-FÜL PLUS employ a multi-chamber separation system featuring dual check valves and incoming and outgoing shut-off mechanisms. An integrated pressure reducer automatically manages refill operations while protecting delicate components from hazardous pressure spikes.
