Gere's my scenario: Water transfer pump. Static head on the system is about 395 feet, which we're pumping (VFD) against to deliver water to a tank some 1.4 miles away. Using a GA Industries 4" surge relief valve, low velocity of 5 fps (1650 usgpm), to be set to discharge to waste (may...
Anyone have any resources on the above? My goal is to learn how to do p+ids for pumping stations, water treatment plant, etc. Thanks (also posted in water treatment discussion)
Hi folks
I open a spreadsheet, leave it open for a while and later want to close it. Sometimes I make changes to it and sometimes I don't. I've got the NOW() command in a cell, so every time I go to close the sheet I'm promped if I want to save the changes. The NOW() command that is forcing the...
We're designing a pump station which has both domestic supply pumps and a diesel engine fire pump, discharging into the same potable distribution network--there's no separate pipe for the fire system. There's also an important sprinklered building on site fed through the network. I suppose that...
Hi,
Our approving authority doesn't put flow meters in their district water pump stations, and there are no residential meters either -- we all just pay a flat rate for water. I recommended a magnetic flow meter on the discharge mainfold for a pump station design because I want it for...
Can anyone give me a supplier of a vane switch. Need for control of my potable water pump. Want to shut it down at specified flow. Tried Flocat but their switch doesn't operate in my range of flows unless I go to a 8" discharge pipe from a 4" pipe, which I'd prefer not to do. Thanks...
We're pumping potable water from a tank through 2 mains into a distribution system & have separate fire flow pumps. The distribution lines are as follows:
Main #4 Qmax=1160 gpm, Hmax=340 ft
Main #5 Qmax=160 gpm, Hmax=110 ft
We planning to use hydropneumatic tanks 10 time the size of Qmax, so...
POSTED ALSO IN SPREADSHEETS FORUM
I've a spreadsheet for plotting pump curves on one chart but the problem is in adding the abscissa (x, flow) values for the same ordinate (y, head) values. The two curves are not input with common y-values. The fastest way seems to be to plot out the two pump...
I've a spreadsheet for plotting pump curves on one chart but the problem is in adding the abscissa (x, flow) values for the same ordinate (y, head) values. The two curves are not input with common y-values. The fastest way seems to be to plot out the two pump curves on one chart then create the...
Hi,
1) We're designing a 1250m3, 2-cell un-baffled rectangular ground level concrete tank, 3.6m is the TWL. We're debating the issues of inlet location with respect to water turnover and chlorine residual. We've currently got our inlet discharging through an elbow downward at TWL. Any comments...
Hi
My water supply for a land development project is described below:
Potable water supply from a 18 in. aqueduct
For 2 weeks per year during maintenance, positive suction is 15 - 20 psi
For 50 weeks per year, positive suction is 90 - 120 psi
Discharge head is 160 psi, discharging directly into...
I'VE POSTED THIS ALSO IN THE PIPING FORUM.
Does someone with experience in parallel pump operations, using well fields and two discharge heads have time to look over my procedure below and comment. Or direct me to resources where I can check myself. I haven't done a parallel operation with 2...
Does someone with experience in parallel pump operations, using well fields and two discharge heads have time to look over my procedure below and comment. Or direct me to resources where I can check myself. I haven't done a parallel operation with 2 discharges before and may have missed a few...
