Manhole step / Manhole rungs for sewer inspection chambers
Overview:
These ductile‑steel manhole steps (rungs) are designed for installation inside sewer inspection chambers, in accordance with Chilean Aguas technical specification No.47.
This U‑shaped rung serves as fixed climbing access for maintenance personnel during underground sewer network inspection and repair works.
Hot‑dip galvanized finish provides superior anti‑corrosion performance for harsh underground sewage environments.
Key Features:
- Single product type: Type‑A (standard)
- Raw material: solid round steel bar, minimum bar diameter 18 mm
- Type‑A dimension: bar diameter φ18 mm; overall width 300 mm, height 175 mm
- Hot‑dip galvanized coating: minimum coating weight 600 g/m² (per Chile standard NCh 228)
- Designed for harsh underground sewage corrosive service conditions
- Certification options: Batch certification (ISO Casco Model 7) or permanent production certification (ISO Casco Model 5)
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Manufactured following Chilean local standards NCh203 / NCh204
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