Chilled water supply and return pipe mains are running in the corridors of our new hospital project. The branches from these mains connect to fan coil units inside patient wards. The main supply header in the corridor is on the right side and the return header to its left. This order (of left or...
This hospital project has a Sewage Treatment Plant that treats raw sewage for use in irrigation.
The large paddles in the batch reactor process churn the water in the open holding tank (before it is decanted and routed to the chlorination tank) which generates a fair amount of vapor of foul...
Based on the invaluable insights about the matter of slopes received, I am now calculating the flow in GPM (from fixture units data and hunter curves) that exists in each part of the sewage network to asses the minimum slope required to generate the 2 feet per second velocity for scouring action...
Chilled water supply and return pipe mains are running in the corridors of the new hospital project. The branches from these mains connect to fan coil units inside patient wards. The main supply header in the corridor is on the right side and the return header to its left. This order (of left or...
Polypropylene pipes are used to convey domestic cold and hot water supply and hot water return to and from the toilets and kitchens of the hospital. The expansion coefficient of the selected pipe material is very high and the manufacturer's catalogues call for expansion loops after ever 30 feet...
The feedback is appreciated and the way to proceed is clear as regards to the slope.
The main run of this PVC pipe in question is collecting sewage from various buildings of the hospital and is being laid from manhole to manhole that will be cast in situ along with this pipe. The joints are bell...
The comment of Beej67 is appreciated in terms of getting the work approved. However I would like to know if it is technically correct and an effective method of meeting the requirement of the code to increase the pipe diameter when the steeper slope cannot be achieved
According to the recommendations of the code the minimum slope for horizontal soil drainage pipes is 1% for pipe diameters less than 8 inches.
The maximum slope that is possible on our site is 0.7% and this is fine for 8 inch diameter pipes . However, 0.7% slope is not permissible for 4 inch...
Dear Engineer,
We are about to lay drainage pipe in our project where the trench has been excavated and the pipe bedding is all ready. Above this pipe path there will be a road running above longitudinally above the pipe path and the cover above the pipe will be less than 3 feet. The attached...
The underground 8 inch PVC pipe is to transport raw sewage from the hospital building by gravity flow to its eventual destination in the lift station from where it will be pumped and routed to the treatment plant.
The site conditions do not allow more than 0.7 % slope for this pipe, and since...
