MSU M H-20 hatches are designed to be cast into place in areas exposed to occasional traffic loads or where water infiltration and drainage into the access opening is a concern. These hatches are a flush design and support occasional traffic loads and are reinforced for AASHTO H-20-wheel loading.
Safety controls are engineered right into all MSU access hatches.
M H-20 access hatches are:
- Aluminum or stainless steel, types 304 or 316, construction
- Gasketed angle frame
- Welded drain coupling and ABS fittings
- Slip resistant checker plate lid
- Hold-open arm, in type 316 stainless steel, locks lid safely at 90 degrees vertical
- Continuous hinges 316 stainless steel with all countersunk fasteners
- Lifting spring in 316 stainless steel
- Slam lock in type 316 stainless steel with sealing plug and opener
- Recessed padlock hasp (padlock by others)
- Reinforced for AASHTO-H20 Wheel loading
- Continuous flange anchor
- Bituminous paint on all areas in contact with concrete
- All fasteners in stainless steel, type 316
- Welding to CSA W47.1 and CSA W47.2
MSU M H-20 hatches are manufactured in single and double and parallel-door units.
| TYPE M H-20 ALUMINUM HATCHES | DRAWING | SPEC |
|---|---|---|
| M H-20 Single-Door Unit 900 x 900 |  |
|
| MD H-20 Double Door Unit 1200 x 1200 | |
|
**Sizes shown are examples only**
Available in Stainless Steel, types 304 or 316
Options:
- Stainless steel, types 304 and 316
- Insulation with back pan (Styrofoam sm 50 mm standard)
- Custom signage, lettering and wording
- Custom finishes: anodizing, painting
