Products
Access Hatch
Hi-Hatch ATCeiling Access Hatch
Single frame type with outer frame hidden. Excellent airtightness performance by setting packing on outer frame.
450×450, 600×600
Installation Location
- Ceiling
Main Features
- Single Frame with Outer Frame Hidden
- A-4 Grade Airtightness Performance (When Sealing)
- Can after Construction
- Can Install into Wooden Frame
- (Corp.) Public Buildings Association Evaluating Product (only When Using the Channel Catch)
Lineup
Size
- 450×450（mm）
- 600×600（mm）
Opening and Closing Part
-
Standard Type
-
Key Type (Key P301)
Can Key Sharing with SD, DX, MOD
Color Variation
-
Silver Color
Function/Performance
Airtightness Performance
Test
Test Standard JIS A 1516-1994
Test Model: HHAT-454・606
*In order to confirm the airtightness of the frame itself, sealed the ceiling material, the inner frame and the outer frame. (Certain airtight performance cannot be demonstrated without sealing.)
Test Results
A-4 Grade
Airtightness grade and airtightness grading line conform to JIS A 4706 (sash).
*Data are our test values and not guaranteed values.
Specification
Material
Outer Frame, Inner Frame/ Extruded Aluminum A6063S-t5 Anodized (Urethane Coating Available)
Model No. / Dimensions
| □450 | □600 | ||
|---|---|---|---|
| Model No. | Standard Type | HHAT-454 | HHAT-606 |
| Key Type | HHAT-K454 | HHAT-K606 | |
| Dimensions | Standard Dimensions | 454×454 | 606×606 |
| Ceiling Opening Dimensions | 455×455 | 607×607 | |
| Inner Finishing Board Dimensions | 433×433 | 585×585 | |
| Inner Backing Board Dimensions | 407×407 | 559×559 | |
Option
Channel Catch
(Corp.) Public Buildings Association Evaluating Product (only When Using the Channel Catch)
Hanging Wire
To prevent falling inner frame by hanging the wire to inner frame and channel. Use it with spring hook attaches to (rotating axis side) the hole of inner frame.
For Square Stud Method “Z Screw”
Square stud method is construction technique using square stud differ from general construction steel-made ceiling base.
“Z screw” is NAKA Corporation’s original screw to fasten ceiling access hatch and square stud. There are some cases cannot available according to the combination of square stud method.
Urethane Coating (Custom-Made Finishing) Available
Installation
Attachment
Hanger Hook
Use hanger hook.
