Manholes

Polyethylene manholes have been successfully used for more than 40 years in all parts of the world and were first introduced in the Philippines by Krah Pipes Manila, Inc. They are distinctive because, unlike RCP and steel, we can quickly and easily produce our HDPE manholes using state-of-the-art German technology. The benefits are well-known, and the market is expanding.

Polyethylene manholes have been successfully used for more than 40 years in all parts of the world and were first introduced in the Philippines by Krah Pipes Manila, Inc. They are distinctive because, unlike RCP and steel, we can quickly and easily produce our HDPE manholes using state-of-the-art German technology. The benefits are well-known, and the market is expanding.
Manholes
icon-easily-fabricated

Easily Fabricated

icon-installation cost

Reduce Total Installation Cost

icons-DURABLE

Durable & Flexible

High-ImpactG-Strength

Impact Resistant

icons-no-leakage

No Leakages

Easy-Handling

Easy Handling

Lightweight

Lightweight

Tailor-Made-Design

Tailor-Made Design for specific project requirements

They can essentially be divided into two groups. For smaller dimensions, system shafts are used, whereas tangential shafts are used for considerably larger dimensions. They mainly differ in how they stand and where they are in relation to the pipe.
All manholes have a cylindrical shape by design. Because the reinforced concrete top plate rests directly on the vertical wall of the construction, it is made to withstand full highway traffic loads in the country.

Standard

Used when the manhole shaft is larger than the pipelines’ inlet and outlet.
icon-inspection-friendly

Inspection Friendly

icon-self-cleaning

Self-Cleaning

icons-DURABLE

Durable Construction

Flexibility

Sustainable & Flexible

Manholes

Tangential

Used when the manhole haft is smaller than the pipelines’ inlet and outlet.
icon-installation cost

Cost Effective

icon-inspection-friendly

Inspection Friendly

icon-self-cleaning

Self-Cleaning

Flexibility

Sustainable & Flexible

Manholes

Special

Custom-made manholes according to the client’s project requirements.
icon-easily-fabricated

Easily Fabricated

icon-self-cleaning

Self-Cleaning

icon-inspection-friendly

Inspection Friendly

icons-DURABLE

Durable, Sustainable & Flexible