PDF Brochure
OKA PRECAST REINFORCED CONCRETE MANHOLES
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OKA offers an extensive range of precast reinforced concrete manholes from nominal diameter of 1200mm to 3000mm in varying depth. OKA precast concrete manholes are an integration of various manhole components ideal for selection to form your preferred manhole system, either shallow or deep to SPAN guidelines. The manhole system can consist of our standard diameter manhole (ID from 1200mm to 1800mm) and/or large diameter manhole (ID from 2100mm to 3000mm). OKA precast concrete manholes are manufactured in accordance to MS881 : Part 1 : 1991 under controlled factory environment with stringent ISO 9001:2008 quality management system. OKA precast concrete manhole components are capable of withstanding vehicle loads.
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Manhole Taper Top | 
Chamber Cover Slab
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| APPLICATIONS
| - Drainage & stormwater manhole
- Sewer manhole
|  | | ADVANTAGES | - Height can be customized
- Minimal site labour costs
- Fast, clean accurate construction
- High quality units
- Quick and easy to maintain
|  |  | | | Sep,17 |
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Notes:
1. Manhole components comply to MS881 and approved by SPAN. 2. All dimensional units in mm unless stated otherwise. | | | Download PDF Brochure |
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