Hanmol Controller iso9001 (new-3)

Chemical Water Treatment

  • Open-loop re-circulating cooling water treatment
  • Closed-loop re-circulating chilled/ Hot water treatment
  • Swimming pool water treatment
  • Potable Water Treatment
  • Boiler water system treatment
  • Flushing water system treatment
  • Provision of on-line chemicals/ Oxidation Reduction Potential (ORP) real-time monitoring, dosing and alarming system


Other Services

  • Water Analysis and Water Quality Test
  • Water Analysis of Lead
  • Water quality monitoring service and analytical equipment
  • Cleaning & disinfection of cooling tower
  • Chemicals selling
  • Indepdendant Audit Report for Cooling Tower System
  • Supply of Preassembled chemical dosing system


The Copper and Silver ionisation system

  • The copper and silver ionisation system is suitable for control of Legionella bacteria in cooling tower systems.

Tin Sing Chemical Engineers Ltd. was founded in 1965 and became a subsidiary of REC Engineering Co. Ltd. in 1993. With over 50 years of experience, we advanced from supply of chemicals and cleaning detergent in the early years into a water treatment and engineering specialist today. We have been a preferred service provider for Government Departments, Hotels, Education Institutes, Engineering Contractors, Hospitals, Shopping Malls, Commercial and Industrial Buildings, etc...