Common hot and chilled water piping - long runs
Common hot and chilled water piping - long runs
(OP)
Dear fellows,
I am designing a system with common hot and chilled water piping with seasonal changeover. The pipe runs are quite long - about 60m (exposed to ambient conditions). Does anyone know of any special precautions one should take except for linear expansion and proper thermal insulation?
Water conditions are as follows: 6°C / 11°C chilled water and 40°C and 45°C Hot water. Pipe size 150mm. Velocity: 1.29m/s.
Ambient conditions range from -5°C to 35°C. Typical South African winter and summer extremes in Johannesburg.
Your input would be much appreciated.
Regards,
Andre Burger
I am designing a system with common hot and chilled water piping with seasonal changeover. The pipe runs are quite long - about 60m (exposed to ambient conditions). Does anyone know of any special precautions one should take except for linear expansion and proper thermal insulation?
Water conditions are as follows: 6°C / 11°C chilled water and 40°C and 45°C Hot water. Pipe size 150mm. Velocity: 1.29m/s.
Ambient conditions range from -5°C to 35°C. Typical South African winter and summer extremes in Johannesburg.
Your input would be much appreciated.
Regards,
Andre Burger





RE: Common hot and chilled water piping - long runs
www.vanderweil.com
RE: Common hot and chilled water piping - long runs
RE: Common hot and chilled water piping - long runs
If you have duty/standby pumps it should be enough to circulate the water when to prevent freezing when it get too cold. Had someone tell me thats all they do for freeze protection in Moscow where it get to be -40!