MSU AL hatches are designed to be cast into or bolted onto round concrete structures such as pumping stations or leachate collection structures where water or liquid infiltration is not a concern. These hatches are a non-watertight choice for areas of pedestrian traffic.
Safety controls are engineered right into all MSU access hatches.
AL access hatches are:
- All aluminum construction
- Angle frame cast in or bolt on
- Slip resistant checker plate lid
- Lifting handle and exposed padlock tab (padlocks by others)
- Hold-open arm, in type 316 stainless steel, locks lid safely at 90 degrees vertical
- Continuous stainless-steel hinging system
- Reinforced for 14.4 kPa live load
- Cast anchors or wedge anchors for bolt-on applications
- Bituminous paint on all areas in contact with concrete
- All fasteners in stainless steel, type 304
- Welding to CSA W47.2
MSU AL hatches are manufactured for standard circular precast concrete structures and come in single, double and multi-door units.
| TYPE AL HATCHES | DRAWING | SPEC |
|---|---|---|
| 1200 mm diameter with 2 semi openings |
 |
|
| 1800 mm diameter with 2 semi openings |
|
|
| 2400 mm diameter with 4 1/4 circle openings |
|
|
Options:
- Insulation with back pan (Styrofoam SM 50 mm standard)
- Lifting spring in 316 stainless steel
- Stainless-steel slam lock with sealing plug and opener
- Occasional traffic loads to CL-625, CL-800, and H-20
- Custom signage, lettering and wording
- Custom finishes: anodizing, painting
