Cleanroom Doors
Overview
Sagiant Piping Industries supplies cleanroom doors for pharmaceutical, GMP, hospital and electronics facilities — flush single- and double-leaf doors, sliding cleanroom doors, hermetic doors and vision-panel doors — in stainless steel 304/316 or coated GI/CRCA with an insulating core, flush-finished and gasket-sealed with coved or flush frames, stainless hardware, closers and optional interlocking. Doors are designed to support the applicable cleanliness and GMP requirements (ISO 14644, EU GMP Annex 1 / cGMP / Schedule M as the project specifies), but a door does not by itself make a room ISO-class or GMP-compliant — overall qualification depends on the installed room, HVAC and operation. Hermetic and fire-rated variants are confirmed against measured leakage or a complete tested doorset respectively.
Cleanroom door types, materials, sizes and GMP reference data
Cleanroom doors for GMP, hospital and electronics facilities. Sagiant Piping Industries / SPI Steel keeps door types, construction materials, sizes, hardware and standards on one page for cleanroom and project QA teams.
Technical Specification
| Parameter | Specification |
|---|---|
| Product Type | Flush single / double-leaf, sliding, hermetic & vision-panel cleanroom doors |
| Material | SS 304 / 316, pre-coated GI (PCGI), powder-coated GI / CRCA |
| Core | PUF / PIR, honeycomb or rockwool (fire-rated) |
| Leaf Thickness | 45–60 mm flush, fully sealed edges |
| Frame | SS / GI box or coved frame, flush with the panel line |
| Sealing | Silicone / EPDM gaskets, drop-down bottom seal |
| Hardware | SS hinges, mortise / lever lock, door closer, vision panel; optional interlock |
| Finish | Stainless brushed (No.4) or polyester powder coat (any RAL) |
Construction Materials
| Component | Grade / Spec | Use | Finish |
|---|---|---|---|
| Leaf & frame (stainless) | SS 304 / 316 (ASTM A240) | Door leaf face & frame | Brushed No.4, passivated |
| Leaf & frame (coated GI / CRCA) | IS 277 / A653 (GI), IS 513 / A1008 (CRCA); skin thickness per the approved drawing | Door leaf face, frame & sub-frame | Polyester powder coat |
| Core | PUF / PIR or honeycomb (rockwool on fire-rated models), per the model | Leaf infill | Foamed-in / bonded |
| Gaskets | Silicone / EPDM; drop-down bottom seal | Perimeter & threshold | — |
| Vision glazing | Sealed double-glazed unit (fire-protective glass on fire-rated models) | Vision panels | Clear |
| Finish | Brushed stainless No.4 or polyester powder coat (approved process) | Leaf & frame | No.4 / any RAL, as available |
Cleanroom Door Types
| Type | Description | Typical Use |
|---|---|---|
| Single-leaf flush door | Single hinged flush leaf | Personnel doors, change rooms |
| Double-leaf flush door | Two leaves, active + inactive | Equipment & material movement |
| Sliding cleanroom door | Manual / auto sliding, sealed | Where swing space is limited |
| Vision-panel door | Flush door with sealed glazing | Visual access between rooms |
| Fire-rated cleanroom door | Separate tested fire-rated doorset (rating per the complete assembly) | GMP areas needing fire rating |
| Air-tight / hermetic door | Inflatable / compression seal; leakage confirmed by test | OT & controlled rooms; high-containment use needs facility-specific qualification |
Standards & Specifications
| Scope | Applicable Standards |
|---|---|
| Cleanliness & GMP | ISO 14644-1 classifies the room (not an isolated door); EU GMP Annex 1 / WHO / cGMP / Schedule M per the project jurisdiction |
| Construction & hygiene | Flush, coved, cleanable GMP design practice |
| Fire-rated doors | BS 476 Part 22, EN 1634-1 or UL 10C (separate tested doorset; results are not interchangeable) |
| Material | ASTM A240 (SS), A653 / A1008 (GI / CRCA) |
| Finish | Polyester powder coat; ASTM B117 salt-spray is a test method, not a service-life guarantee; SS No.4 |
Testing, Inspection & Documentation
| Test / Document | Detail |
|---|---|
| Dimensional / flatness | Leaf size, flushness, gap & gasket-line check |
| Air leakage | Measured leakage at a stated differential pressure & direction against a defined acceptance criterion (for hermetic / low-leakage models); a gasket or closing check alone does not establish airtightness |
| Interlock function | Both-door-open prevention, door-position sensing & emergency release (a control-behaviour test, not room classification) |
| Fire rating | EN 1634-1 / BS 476-22 test for fire-rated doors |
| Finish | Coating thickness (DFT), adhesion, salt-spray |
| Documentation | GA drawing, material & finish records, leakage / interlock / fire evidence where specified, dispatch list |
Applications & Industries Served
Available Forms, Sizes & Range
Sizes below are indicative and tied to each model; the hinged range is not extrapolated to sliding or rated doors. Share room class, leaf configuration, fire rating and hardware / interlock needs for the exact build.
| Item | Indicative size | Leaf thickness | Design reference |
|---|---|---|---|
| Single-leaf door | 700–1200 mm W x 2100–2400 mm H | 45–60 mm leaf | Design to ISO 14644 / GMP |
| Double-leaf door | 1200–2000 mm W x up to 2700 mm H | 45–60 mm leaf | Design to ISO 14644 / GMP |
| Vision panel | 300 x 300 to 600 x 900 mm | Double-glazed flush | — |
Frequently Asked Questions
What are cleanroom doors made from?
Flush doorsets with stainless 304/316 or coated GI/CRCA skins over an insulating core, fully sealed for cleaning. The exact grade, skin thickness, core and gasket are specified per model and project, and no material is an automatic substitute for another.
Are the doors ‘ISO 14644’ or ‘GMP’ certified?
ISO 14644-1 classifies the airborne-particle cleanliness of a cleanroom, not an isolated door, and EU GMP Annex 1, WHO, cGMP and Schedule M are project or jurisdiction requirements rather than door product certifications. We supply doors designed to support the applicable requirements; overall qualification depends on the installed room, HVAC and operation.
What does ‘hermetic’ mean — is the door airtight?
A hermetic door uses an inflatable or compression seal for a low-leakage closure. Airtightness is confirmed by measured leakage under a stated differential pressure and direction against a defined acceptance criterion, not assumed from the door name; high-containment (for example BSL) use needs a facility-specific risk assessment and qualification.
Do interlocks maintain the pressure cascade?
Interlocks help prevent both airlock doors opening at once, but the pressure cascade also depends on HVAC balance, leakage, sensors, control logic and room operation. We define the control sequence, fail-safe behaviour and emergency release for the actual interlock; EU GMP Annex 1 governs simultaneous-opening control by area grade.
Are fire-rated cleanroom doors available?
Yes, as a separate fire-rated model. A rockwool core and intumescent seals do not by themselves establish a rating — the rating applies to a complete tested doorset (report, classification, size, wall, glazing and hardware), and EN / BS / UL results are not interchangeable. Fire-rated variants are kept distinct from standard cleanroom doors.
What sizes and finishes are available?
Hinged, sliding and hermetic configurations are offered within each model's size limits — the hinged range is not extrapolated to sliding or rated doors. Finishes are brushed stainless (No.4) or polyester powder coat within the approved coating systems available.
Scope of Work
The cleanroom doors scope can include project review, fabrication support, dimensional coordination, inspection documentation and dispatch support for industrial installations.
Applications
For related project work, review Custom Fabrication, Contact Sales or for technical assistance.
Related Pages
From requirement to dispatch
A drawing-led, inspection-backed process for engineered and fabricated supply — the same discipline on every project.
- 01
Requirement Review
Drawing, BOQ, specification and project scope reviewed to confirm feasibility.
- 02
Design & Specification
Material, method, tolerance and finish aligned to the applicable standard.
- 03
Fabrication Planning
Production planned with inspection and test points built into the sequence.
- 04
Inspection & QA
Dimensional and visual inspection against drawing, with documentation as required.
- 05
Packing & Dispatch
Tagging, packing and dispatch documentation for on-time project delivery.
Frequently Asked Questions
What are cleanroom doors made from?
Flush doorsets with stainless 304/316 or coated GI/CRCA skins over an insulating core, fully sealed for cleaning. The exact grade, skin thickness, core and gasket are specified per model and project, and no material is an automatic substitute for another.
Are the doors ‘ISO 14644’ or ‘GMP’ certified?
ISO 14644-1 classifies the airborne-particle cleanliness of a cleanroom, not an isolated door, and EU GMP Annex 1, WHO, cGMP and Schedule M are project or jurisdiction requirements rather than door product certifications. We supply doors designed to support the applicable requirements; overall qualification depends on the installed room, HVAC and operation.
What does ‘hermetic’ mean — is the door airtight?
A hermetic door uses an inflatable or compression seal for a low-leakage closure. Airtightness is confirmed by measured leakage under a stated differential pressure and direction against a defined acceptance criterion, not assumed from the door name; high-containment (for example BSL) use needs a facility-specific risk assessment and qualification.
Do interlocks maintain the pressure cascade?
Interlocks help prevent both airlock doors opening at once, but the pressure cascade also depends on HVAC balance, leakage, sensors, control logic and room operation. We define the control sequence, fail-safe behaviour and emergency release for the actual interlock; EU GMP Annex 1 governs simultaneous-opening control by area grade.
Are fire-rated cleanroom doors available?
Yes, as a separate fire-rated model. A rockwool core and intumescent seals do not by themselves establish a rating — the rating applies to a complete tested doorset (report, classification, size, wall, glazing and hardware), and EN / BS / UL results are not interchangeable. Fire-rated variants are kept distinct from standard cleanroom doors.
What sizes and finishes are available?
Hinged, sliding and hermetic configurations are offered within each model's size limits — the hinged range is not extrapolated to sliding or rated doors. Finishes are brushed stainless (No.4) or polyester powder coat within the approved coating systems available.