WELLAN2000 TECHNOLOGY

1. Project Background:

Name: WELLAN2000 Ring to Prevent Scale for Central Air Conditioning Cooling Water System

Address: Shun Yi District, Beijing City

Installation Point: Water Inlet Pipe before the condenser

Ring Size: DN400 mm

Installation Date: May 1st, 2020

Inspection Date: April 19th, 2022

2. What we found

We opened end caps of the condensers for both air conditioners to check the inside conditions of the tubes.

Air conditioner No.1 : Clean inside. Only a very thin layer of less than 1 mm of scale visible on metal surface with no influence on heat exchange efficiency.

Air conditioner No.2 : Clean inside. Only a very thin layer of less than 1 mm of scale exists inside some of the tubes which has no influence on heat exchange efficiency.。

Both ends and caps are free of scale or rust.

Our conclusion is Wellan2000 ring performs very well on scale and corrosion prevention.