30Hatch has integral structure of manhole cover and fall prevention fence. 30Hatch can be completed within "30 seconds" by sliding out with one hand. The completed safety fence will be the hold for entry into and leaving from a pit.
Equipped with balanced weight, it helps you to lift up manhole cover and safety fence with extremely light force.(within 15kgf)
| ① Closed |
| ② Being opened |
| ③ Being opened |
| ④ Completed |
| Specification |
| Description | Design range |
| Manhole shape |
Round ○ or Square □ |
| Opening size |
φ600～900mm □600～1,000mm |
| Manhole depth | 2,000mm～ |
| Construction | Aluminum |
| Max. load | 4.9～14.7 kN/m2 |
| Others | Can be designed for new construction or retrofit/replacement. |
| 5 FEATURES |
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Thanks to balanced weight, manhole cover can be opend and closed with extremely light force(15kgf).
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Manhole cover is combined with safety fence.
It prevents from fatal fall accident. -
30Hatch is made of aluminum(Resistant to corrosion).
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Can be designed for new construction and retrofit/replace.
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30Hatch is equipped with bottom ladder.
Safety cage can be designed for deep manhole.
| Installation Examples |
Grating type
|
Substation □800×2,410mm(H) |
SRLs type (Self-Retracting Lifelines)
|
Substation □750×3,010mm(H) |
With waterproof cover
|
Pump station φ900×3,050mm(H) |
With key and lock
|
Substation φ900×2,920mm(H) |
Manhole with equipment hatch
|
Hydraulic power station □700×2,550mm(H) |
Bottom ladder with safety cage
|
Pump station □700×2,550mm(H) |
|
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