PIPE RISER SUPPORT SYSTEM By: Steve Fey Senior Field Application Engineer Supporting pipe risers subject to thermal expansion and contraction in hi-rise HVAC Systems has presented tremendous problems to the Design Engineer. Standard carbon steel piping expands or contracts at a rate of 0.8” (20 mm) per 100ft (30.5 m) per 100°F (37.8°C), so pipe…
To The Specifying Engineer: In 1962 we introduced our first “HVAC ENGINEERING SPECIFICATION.” While the 1962 approach was very well received and filled a void, it was made up of many individual specifications rather than presented in an organized format.It had no meaningful minimum static deflection guide and engineers found it hard to work with.…
First Presented at the Fall Lecture Series NOISE AND VIBRATION PROBLEMS AND SOLUTIONS New York Chapter-A.S.H.R.A.E. November 1966 Condensed & Published in Air Conditioning, Heating & Refrigeration News – 1-29-68 Until a very few years ago the vibration isolator recommendations for air conditioning equipment were more a matter of tradition than science. It was well…
