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Technical Seminar: The Ways to solve for Water Hammering in Water Supply system

Date, time & venue

2018-06-22;6:30pm - 8:00pm;Chan Yat Mei Sophie Room – 9/F

Jointly Organized by AMC, EVD and CAD

Programme Highlights:

If you have ever been in a home and heard thumping or pounding when you turned off a faucet, then you have witnessed the water hammer effect. Water hammer occurs when there is sudden change direction and the momentum change causes pressure waves in the pipes. It is a plumbing nuisance that can cause serious pipe damage, leak and burst..


The speaker will mention about :

Common locations of vibration

Shock wave

Calculation of water hammer

Selection of  valves and fitments

Case studies

Remedial measures

Preventive measures



Powerpoint in English and Presentation in Cantonese



Mr William Cheung

Technical Advisor, The Charter Institution of Plumbing and Heating Engineer Technical Advisor, The Hong Kong Institution of Plumbing and Drainage

Technical Advisor, Hong Kong Plumbing & Sanitary Ware Trade Association

Technical Advisor, Hong Kong Plumbing Technology Association


Registration & Enquiries

The seminar is free of charge with maximum of participants of 80.  For registration, please complete the online enrollment form in Environmental Division website (  Successful applicants will be notified before the event.  For enquiries, please contact Mr Benjamin Lam at .  Attendance certificate will be awarded after seminar. 





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