[Case Study] Railway Facilities Station Operations Office

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last updated：Jan 05, 2026

Introducing a case that resolved the drainage slope issue during the installation of new toilets in the station operations office!

Introduction of "Wastewater Big NA (BG-200NA)" to the station operation office of railway facilities. In this case, a new operation office was established during the station renovation work for barrier-free access, and there was a challenge of wanting to install a toilet inside the office but being unable to achieve the necessary drainage slope to the existing manhole. During the installation of the product, the ventilation pipe was constructed for outdoor air release. The pump unit was installed in a concealed manner (pump room), and the alarm panel was placed in a location where people are present. 【Case Overview (Partial)】 ■ Installation Location: Station Operation Office ■ Model: Wastewater Big NA (BG-200NA) ■ Connected Fixtures: Toilet (flush volume 6L, floor drainage), hand wash basin, air conditioning unit drain *For more details, please download the PDF or feel free to contact us.

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【Summary of Other Cases (Partial)】 ■Issues <Requests> - We want to install a toilet in the office, but we cannot achieve the drainage slope to the existing manhole. ■Proposed Content <Key Points for Design and Construction> - A lift of 8m is required for piping along the overpass, so a large sewage pump (Big NA) is adopted. - The vent pipe will be constructed for outdoor air release. - The pump unit will be installed concealed (in a pump room), so the alarm panel will be placed in a location where people are present. *For more details, please download the PDF or feel free to contact us.