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Well valveman im thinking using the centrifugal pump, i think it is the most efficient pump for maintenance, because we dont have to change any installation pipe when the pump are broke down and can fix it on the spot. Maybe sometimes have to cleaned the foot valve. but if im using the...

Ok, thats a big surprise you are really a big support that book of your is really great books. Well then if there is so much trouble in the 16" pipe maybe we change it back to 20" then, where there is less pressure and less power, as for turbine pump is a great choice too, but the problem with...

Thanks Valveman, it is hard to find on the net, i already tried many times, but the biggest pipe i found is 12". Im really appreciated that broo. Ah one more question, according to your opinion for the pump which is the best type, a centrifugal end suction or submersible waste water pump or...

So i put the pressure relief valve after the pump. How about if im using two pumps? one for running and the other only for backup but they have a header pipe, can i place the pressure relief valve after the header pipe. Because this is a long way from the city, middle of the country wheres no...

Great thinking, well cass this is my first time project too, i never had this big one, the one before only takes 4700 feet long but with steel pipe. thats why i got into lots of forum to looking for ideas or some reasonable thought, so far only MR. Valveman had a responsible answer. ok now back...

Cavitation Mr Valveman, i already held a meeting about this, they still calculating again, then again i still have some question, please do not be bored with my question. :). How about the cavitation in the pipe and valve, is there any risk. by the way i love this forum, we can change ideas and...

Wow, one more time Wow Thanks Valveman for such a quick reply, I dont need more pressure at the end of the line, because it is for rice farm, the water just coming up with no pressure at all to dewatering the farm. anyway im gonna held a meeting to study your opinion and hopefully the...

Dear Valveman, Thankk youuu Yooo Valveman, thanks a lot you are the first person with reasonable idea, i knew that the consultant engineer in here is wrong. I also think we dont need more pump, but are you already minus it with the friction loss between the valve, the pump and the pipe, im a...

Dear Cass :) Hahahah, i cant give you the job because it located far east of Indonesia. And im not sure if im capable for this project if i dont have the answer yet. :)

More Information Thanks guys, maybe i can clear it like this : Pipe length are 14107 feet with diameter 16" or 20" pipe material is PVC with maximum pressure allowed 116 PSI, the capacity what im asking are 4755 USGPM and total Head = ??? along the pipe there are 3 gate valve to water the...

More information Thanks guys, maybe i can clear it like this : Pipe length are 14107 feet with diameter 16" or 20" pipe material is PVC with maximum pressure allowed 116 PSI, the capacity what im asking are 4755 USGPM and total Head = ??? along the pipe there are 3 gate valve to water the...

Correction to metrics very well then but how can i choose the right pump if they want to use pvc pipe with total length of 14107 feet, the capacity what im asking are 4755 USGPM and i still cannot calculate how much psi that i need to fill the pipe till end of pipe. The rivers depth are around...

You right Well i got the point there Gery, i know this is a larger scale, and also this is my first project i never design or calculate at this much. very well then heads up and looking for some experts engineering for this matter. Any suggestion of the firm???

Hi guys, i have a challange for pump or contractor specialist, I have a case to choose the right pump for irrigation. very well then but how can i choose the right pump if they want to use pvc pipe with total length of 14107 feet with diameter of pvc pipe are 20 inch, the capacity what im...

The project are for planting the rice seed. Actually i need someone to help me design the irrigation system so i can choose the right pump and the right system. the area of the rice seed divided by two pumps, one pumps are for 2,7 Km 20" PVC Pipe, and the other pump are for 4,3 Km 20" PVC Pipe...

Hahahaa, Dear Gery im not try to water the moon, actually it is a project irrigation for planting the rice. the area that need to be watered are length 2,7 Km straigh and 1,7 Km down, and 2,2 Km right after down. I need a pump or a system to push water that far, the consultant required 20" PVC...

Dear All, :confused: I have a roject for Irrigation that need calculation of friction loss, I tried the freecall but not sure if its correct. The problem are for case 1 & 2 1. Diameter of the pipe : 20" Material of pipe : PVC Length of pipe : 1600 Metre Horizontal Elevation ...