Egis HermaSeal S100

The HermaSeal S100 is Egis Enterprises' core hermetic sliding door: a single-leaf automatic system engineered to seal on all four sides every time it closes. In an operating theatre or isolation room, the door is part of the pressure regime — a leaky leaf lets conditioned, filtered air escape and draws unfiltered air in through the gap. The S100 closes that gap with a guided down-and-in travel: the leaf glides horizontally, then seats downward and inward against the frame, compressing a full-perimeter EPDM gasket. Tested to EN 1026, it achieves airtightness Class 4 under EN 12207 — the tightest standard class for operable doors.

Everything about the leaf is designed for clinical cleaning. The 70 mm leaf presents a completely flush face with no ledges, handles or protruding profiles where disinfectant can pool or dust can settle. The standard finish is high-pressure laminate or powder-coated steel, with a full stainless steel variant for areas that demand it. A narrow, flush-glazed vision panel keeps sightlines for staff while preserving the seal, and the touchless activation — radar plus infrared safety — means nobody touches the door with gloved or contaminated hands.

As a hermetic door, Egis supplies the S100 as a complete system: leaf, frame, microprocessor drive, safety sensors and interlock logic for airlock pairs, all sized, installed and commissioned by one team. Clear openings run from 800 to 2100 mm wide and 2100 to 2700 mm high, covering single-patient room doors through to wide equipment-transfer openings. An optional EI30 fire-rated variant is available where a compartment wall must both seal air and hold back fire.

Airtightness is not a gasket material — it is a closing geometry. Many sliding doors carry a brush or blade seal that merely brushes the frame; air passes freely around it. The S100 uses a down-and-in mechanism: in the final 40 mm of travel, the carrier rollers drop the leaf vertically and pull it inward, so the EPDM gasket meets the frame squarely and compresses evenly around the full perimeter, including the floor. A drop-down threshold seal closes the bottom gap that defeats most sliding systems.

The seal is verified, not claimed. Each door family is type-tested to EN 1026 (air permeability) and classified to EN 12207; the S100 achieves Class 4, the highest class, meaning measured air leakage at the test pressure is negligible. In service this protects the room's positive or negative pressure cascade — the invisible barrier that keeps an isolation room containing pathogens and an operating theatre supplied with clean air.