# Recent content by maxx_payne

1. ### Catia this giant

DEAR MECH ENGINEERS CAN I ASK YOU whats the rank of catia between other softwares such as solid works and solid edge and pro eng and inventor and if its possible tell me is catia the most effieicnt between them and is it enough for any mechanical engineer or its like other software has...
2. ### Chilled water pumps

why is it recommended to use a 1450 rpm pump with a bronze impeller for pumping chilled water to the chillers ?
3. ### Stainless steel pipe selection

dear friends i have an application for pumping system it consists of 3 parallel pumps having a max head of 8 bars i have a stainless steel pipe has 8" diameter and sch 10 will this be suitable to be used under this pressure ?
4. ### How to study this kind of flow ?

boneh3ad i know the NSE can be applied to all systems on the earth but here how can we apply it ?? in cartisian co-ord. or we will use the polar co-ord. and in the redius direction or in the angel direction i think its complicated , i have studied this case and get an equation for flow using the...
5. ### How to study this kind of flow ?

my friend i mean which theory will be presentable to study the flow from up to the bottom ??
6. ### How to study this kind of flow ?

how to study this kind of flow ?? how will the water flow from the upper volume to the second one ??
7. ### Hydraulic total pressure

my friend we always here neglect secondary losses like fittings and valves but length no and also it depends on the length ur talkin abt
8. ### Hydraulic total pressure

because u give the pump electric power and it transimits it to hydraulic power thats the reason YURI
9. ### Damn centrifugal pump

i am very sorry for unclear description but the original pump in the manual was 2.2 kw has q=12m3/hr and H = 20 m the new pump they put is 10hp q=20m3/hr and H= 40 m and while its operatin on the machine it gives 25 meter head only not 40 the sitiuation now is that i have searched for these...
10. ### Hydraulic total pressure

russ_watters EXCELLENT
11. ### Damn centrifugal pump

accordin to my last to posts here i found this special pump which has materials designed to carry a high press but the problem now i found a pump on the machine is bigger than the one in the manual so shall i buy the pump from manual or as the existing pump ?
12. ### Pump question

yes ur very right u know the pump has high Hms and Hmd but normal Hm and the pump will give speed to water yes correct i think its an ordinary pump not special pump because these 10 bars after operating the pump it will reduced by the value of vacum created by pump impeller do u faced...
13. ### Pump question

so the pump is a normal pump ???
14. ### Pump question

tell me guys whats the relation between Hms and Hmd and the pump selection for example i have Hms =10bar , Hmd =12 bars so Hm =2 bars so the Head of the pump is only 2 bars or its said that pump has a head of 2 bars and can withstand 12bars ???
15. ### Pressurized centrifugal pump

thanx edgepflow so the pump selection will be a normal pump but the materials of casing and impeller should withstand this high pressure