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Spenle international

+33 (0)3 87 25 78 00



Hermetic sliding door - SP 450


The SP 450 hermetic sliding door is designed for rooms with controlled environments, particularly operating theatres in hospitals and clean rooms for different leading-edge industrial environments, and helps control contamination risks and protect staff, patients, products and materials in such environments.

The performance of SP 450 airtight doors has been tested and certified by the CSTB; the doors have the airtightness and soundproofing properties below:

  • Leakage rate 0.02 m3/m2/h at + 20 PA and < 0.04 m3/m2/h at + 50 PA
  • Acoustic attenuation -29 dB (SP 450 standard laminate) to -40 dB (SP 450 STILLROOM ®)


  • HPL laminate with anti-bacterial treatment, Acrovyn, painted steel (15µ as standard or PET 55µ or thermo-coated) or 304L stainless steel.
  • Protected by a frame with rounded edges in aluminium or brushed stainless steel.
  • Laminated glass window, flush on both sides.
  • Reinforced polyamide or 304L stainless steel bar handle.
  • Painted steel or stainless steel flush pull handle.
  • Replaceable silicone perimeter gasket.


Door frames

  • Frame and counter frame in aluminium profile with rounded edges or welded 304L stainless steel, adapted to the partition.



  • Anodised aluminium track with ramps and floor guides.



  • Slanting protection cover in anodised or painted aluminium, painted steel or brushed 304L stainless steel.


  • Fully glazed leaf - clear, frosted or printed glazing.
  • Acrovyn or brushed stainless steel lower door protection.
  • Leaded leaf, frame and sight hole (X-ray protection) – SP 450X.
  • Sight hole with integrated venetian blind.
  • Sound-proofing and attenuation up to -40dB (CSTB report)– SP 450 STILLROOM ®
  • External internal lever handle in stainless steel.
  • Flow-adjustable transfer grille.
  • Automatic kit.

A few examples of application - hermetic or airtight sliding doors 


  • Airtight doors of operating theatres and operating rooms in hospitals and clinics.
  • Hermetically sealed disinfection doors in hospitals.
  • Hermetic doors of clean rooms in the pharmaceuticals industry.
  • Hermetic radiation-shielded doors for oncology etc.

Hermetic sliding door - Documentation

SP 450 EN


Please see the other doors and protection from SPENLE dedicated to hospitals and clean rooms :


Hermetic swing door - SP 250

Polyethylene double action swing door
Polyethylene swing door
Water-repellent double acting door
Impact resistant traffic door

Water-repellent double-action doors
Double-action door for humid environments
Polyethylene door unit

Heavy-duty double-action door
Polyethylene swing door
Polyethylene door for restaurants, kitchens, canteens of schools and care homes, laundrettes
Polyethylene double acting traffic door

Flexible doors for industry
PVC strip

Doors with flexible leaves
Spare parts for doors

Insulated doors for the food industry

Polyethylene double-action and service doors

Airtight doors clean rooms and medical environments

Sealed soundproofing and radiation-shielded doors

Flexible doors for industry
PVC strip

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