Discreet flush installation

For installation shafts

Discreet inspection closure

From small to large

Many surfaces


Universal inspection opening closure for flush mounting in shaft walls, solid walls and PRIOWALL. The closure is availabe single-leaf or doubl-leaf and is suitable for large-scale compliant partitioning of installation shafts and the partitioning of measuring equipment and distributors in escape and rescue routes. The inspection opening closure is tightly sealed all around and offers fire resistance for 30/90 minutes.

The product has been equipped with a bolt lock without latch. This means that the inspection opening closure cannot fall into the lock and can be easily pushed open from the inside, unless it is actively locked from the outside with a key.

PRIODOOR RTX single-leaf inspection opening closure, flush-mounted in solid walls

Double-leaf inspection closure in “Denver Oak” decor, installation in PRIOWALL wall system


  • 30/90 minutes fire resistance, fire retardant/fire resistant
  • EI 30 i→o, EI 90 i→o classification
  • Smoke protection
  • Leak-proof closing
  • Sound reduction index depending on size up to 40 dB


  • Inspection opening closure with high mechanical resistance
  • Flush mounting and on-wall mounting
  • Single and double-leaf design
  • Circumferential block frame 43 mm wide
  • Circumferential smoke and fire seals, expand automatically in the event of a fire
  • Door closes flush with frame, opening angle ca. 180°
  • Mortise lock, Locking system with single cylinder
  • Door stop position DIN right
  • Door detachable
  • Door hinges in stainless steel

Single-leaf inspection closure installed in GKF shaft wall


Material characteristic

  • Non-combustible board with surface coating, classification A2 – s1, d0
  • Standard laminate surface
  • Colour light grey, similar to RAL 7035, edges and bevels in different colour

Dimension drawing

Assembly details

File name
Catalogue excerpt PRIODOOR RTX .pdf
Brochure PRIODOOR RTX .pdf
Texts for tenders PRIODOOR RTX 30 Min. .pdf.doc
Texts for tenders PRIODOOR RTX 90 Min. .pdf.doc
Assembly instructions PRIODOOR RTX .pdf

Variants: PRIODOOR RTX with wall

  • Construction as PRIODOOR RTX inspection opening closure
  • Four-sided wall for wall mounting (Depth up to 300 mm)*
  • Three-sided walls for mounting on bare floor (combination with PRIOWALL and PRIOCEIL)
  • Optional cable sealing(s) above and/or below

* With additional declaration of conformity

Options and accessories

Many PRIORIT surfaces possible

Continuous decors possible

  • Frame width from 43 mm to 100 mm (Valid from an inside width/inside height of the PRIODOOR RTX inspection opening closure of 314 mm.)
  • One-piece frame with 1-leaf lock
  • Technical ventilation on request
  • Fixing material for solid wall and GRP shaft wall
  • Door lock cylinder rosette on one side
  • Single cylinder 30/10, senate closure, incl. 2 cruciform keys 75 mm
  • Single cylinder keyed-differently without rosette
  • Magnet Reed Contact Set, Contents: 1 magnet, 1 reed contact with 4.0 m connection cable LIYY 4 x 0.14 mm², 2 housings, 2 spacer plates, 2 flanges and 4 antimagnetic fixing screws (V4A)