Clean Room Door Interlocking System for Cleanrooms & CSSD

MODEL NO.: FHD-101

Interlocking system prevents both doors opening simultaneously, maintaining the pressure cascade between cleanliness zones
Three leaf configurations: single-leaf personnel, double-leaf material transfer, sliding for main entrances
Airtight sealing maintains 10-20Pa differential between ISO 14644 cleanliness classes
HPL or stainless steel surfaces, non-shedding and disinfectant resistant
Aluminum honeycomb core provides rigidity without weight
Integrates with 50mm or thicker EPS, MgO or rock wool wall panels

Brand Fenghe
Product origin China
Delivery time 20-35 days
Supply capacity 1,000+ sets/month

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Applied in: Clean Room Door & Panel Solutions

Product Details

Product Features

Interlocking system prevents both doors opening simultaneously, maintaining the pressure cascade between cleanliness zones
Three leaf configurations: single-leaf personnel, double-leaf material transfer, sliding for main entrances
Airtight sealing maintains 10-20Pa differential between ISO 14644 cleanliness classes
HPL or stainless steel surfaces, non-shedding and disinfectant resistant
Aluminum honeycomb core provides rigidity without weight
Integrates with 50mm or thicker EPS, MgO or rock wool wall panels

Product Parameters

Door type	Interlocking clean room door, three leaf configurations
Door leaf width	800-1800mm (custom)
Door leaf height	2000-2400mm (custom)
Door leaf thickness	50mm
Material of door leaf	HPL or stainless steel faced
Door frame	Aluminum extrusion, integrated gasket channel
Core	Aluminum honeycomb
Fire rating	B1 (GB 8624) / EI30 optional
Installation	Flush with wall panel
Min wall thickness	50mm
Applications	Hospitals, cleanrooms, pharmaceutical & laboratory facilities

The interlocking clean room door system for pharma, CSSD and electronics cleanzones: two doors that never open together, sealing that holds the pressure cascade, and leaves that integrate flush with sandwich panels.

How the Interlock Protects the Pressure Cascade

The interlocking clean room door system prevents both doors of an airlock from opening simultaneously, maintaining the pressure cascade between cleanliness zones as required by ISO 14644. The controller supports configurable delay, pressure-equalization wait, and integration with room pressure monitors. LED indicators show door status to personnel on both sides.

Single, Double and Sliding Leaf Configurations

Three leaf configurations cover the full range: single-leaf for personnel airlocks, double-leaf for material transfer chambers, and sliding for main cleanroom entrances. Each leaf is HPL or stainless steel faced with a smooth non-shedding surface. The aluminum honeycomb core provides rigidity without excess weight.

Sealing for ISO 14644 Class Boundaries

The airtight sealing maintains the 10-20Pa pressure differential between ISO 14644 cleanliness classes, preventing particle migration from lower-class to higher-class zones. Perimeter gaskets compress against the frame on every close, and the floor seal drops automatically when the door reaches the closed position.

Flush Integration with Sandwich Panels

The door integrates with 50mm or thicker EPS, MgO or rock wool sandwich panels for a flush installation with no particle traps. The frame aligns exactly with the panel thickness, creating a smooth transition between wall and door with no recess or ledge where dust could accumulate.

CSSD Duty: Steam, Trolleys and Disinfectants

For CSSD (Central Sterile Supply Department) applications, the door withstands daily steam exposure, trolley impacts and aggressive disinfectants. Stainless steel surfaces are specified for areas with hydrogen peroxide vapor decontamination. For pharmaceutical GMP cleanrooms, the door surfaces are compatible with standard cleaning protocols and produce no particle shedding.

Frequently Asked Questions

How does the interlock work?

The controller allows only one door of a pair to open at a time. Until the first door closes and seals, the second stays locked - so the pressure cascade between cleanliness zones is never bridged by two open doors.

Which panel thicknesses does the frame match?

The frame aligns with 50mm and thicker EPS, MgO or rock wool sandwich panels, installing flush with no particle traps. Panel thickness is confirmed per project with the door schedule.

Swing or sliding for the main cleanroom entrance?

Single-leaf swing suits personnel airlocks, double-leaf serves material transfer chambers, and sliding leaves serve main entrances where the swing arc is in the way. All three share the same sealing system.

Is stainless steel available for CSSD?

Yes - stainless surfaces are the standard CSSD specification, withstanding daily steam exposure, trolley impacts and aggressive disinfectants.

What is the lead time?

Production runs 20-35 days after drawing confirmation, with interlock controllers tested and paired before shipment.