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Inspection Door

DF20 Easy-to-install, simplified inspection door

Simplified inspection door that is lighter than ceiling inspection opening of heat-insulation panel type, by means of thinning the hatch portion. Installation without reinforcement on the panel opening is possible, as the mounting frame is of aluminum profile with backside wings. Two types of open/close handles can be selected. For use on the wall, magnet catch can be used in addition to screw-drive lock. Two types are available for the hatch portion: 'Regular Specification (S type)' that uses specified face material on both sided, and 'Transparent Specification (T type)' that uses transparent resin plate.

  • Installation without adding reinforcement to the panel is possible, as flanges are attached on the backside.
  • Two types of open/close mechanisms can be selected (only for wall installation. Only screw-driver lock is available for ceiling installation).
  • Selection is available between products of standard specification and products of custom-made fabrication in the unit of one millimeter.

DF20

Scope of fabrication (unit = mm)

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DF20-S/DF20-T
Effective dimension W250 - 600
H250 - 600
In case of right opening or left opening on wall installation, dimension DW cannot exceed dimension DH.
Standard dimension (effective dimension) is from W150 x H250 up to W600 x H600.(In increment of 50mm for both W and H)

Specification

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Model DF20-S DF20-T
Door thickness
(Overall thickness)		 7mm
Opening form Right-left opening, Lower hinged type, Upper hinged type
Outer frame Aluminum profile (Alumite, clear finish)
Face material Metal sheet 0.4 - 0.6mm
(Steel plate, aluminum, stainless, provided material)		 Polyvinyl chloride, polycarbonate, PET 5mm
Core material Laminated board
Packing EPDM rubber
Hinge Stainless removing-inserting hinge
Lock system Screw-drive lock (zinc alloy)
Knurling knob (stainless mirror buff finishing)