Can we use the casing as column pipe, I raised up this question as API 5CT , Grade J55 , classifies the type as per the pipe size , If the size is less that 4 ½” , the product is classified as PIPE , for larger size the product is classified as CASING . So for example, can we use the 6” API J55...
I did a calulation to know the minimum wall thickness required for carbon steel pipe (ASTM A53 Gr.B , type E) that will be used for potable water pipes.
I did the calculation according to two ASME codes :
ASME B31.1 : Power Piping
ASME B31.4 : Pipe line transportation system
The calculated...
For electrical submersibl pump that will be installed inside deep water well , it ws specified to install
die electric section between the pump and the column pipe to prevent electrolysis . about 3m above the pump end we will installa check valve .
I don't know so much about the die elctric...
Dear all,
I need to know the working pressure for welded steel pipe of standard ASTM A53 Grade B , Type E , and of SCHEDULE 20 for Pipe sizes of 8” , 10” , 12” , and 16 “ ?? our specifications call for pipes to be rated for 600 psi working pressure , so we need to be sure that the above...
I am working in a water project, at which welded steel pipes will be used according to the following standard:
ASTM A53, Grade B, Type (E), and rated for 600 psi working pressure.
The contractor proposed to supply the steel pipes from one of the manufacture, the submitted datasheets from the...
For the welded steel pipes and the galvanized steel pipes that will be used for potable water applications , the WS pipes will have internal cement lining , I know that the internal cement lining that will be in contact with potable water shall have NSF61 approval and satisfy current...
In the past I asked a question about the difference between the schedule and the Grade for the steel pipes,
The answer was:
Schedule is associated with the pipe thickness whereas Grade is normally associated with the material (For Example 8"nb Schedule 40 - Materials API 5L Grade B)
My...
I need to calculate the pump efficiency for an installed booster pump. I have a problem with calculating the output power of the motor (the brake horse power BHP) , I can calculate the input power for the motor by using the data I can get from the VFD , and I can calculate the output power of...
I have a discussion with some engineers regarding the selection of the impellers material for horizontal booster pumps that will be used to pump clean water, with the possibility to have small debris passing through the pump (like sand and silt).
The selection is between Cast iron and Bronze...
I am working in water project to rehabilitate water pumping stations , the stations were built before 6 years , the discharge operating pressure is around 35 bar , the original design for the stations included surge anticipating valve (SAV) to absorb the surge waves during the power failure...
Can you help me to get the DIP fittings equivalent length , for the sizes 6" , 8" , and 12". I looked for this table but I couldn't find it !!
Thanks in advance ..
For the water main transmission pipelines , can you help me in getting the data for selecting the size of the washout line depending on the size of the main transmission line ??
If there is any table that provide this data this will be vey helpfull , thanks in advance ..
Dear All ,
While we are excavating the trenches for 12" Ductile Iron water main transmission line , we faced a very hard type of rocks ( like granite stones) and it was very difficult to dig deeper to reach the required depth of excavation for the trench ( 140 cm ). As per the design drawings...
Dear All ,
During my reading for the procedure of the pipeline hydrostatic testing , I observed that it is required to flush the pipeline before testing , the contrcator insisted to flush the pipeline after the testing and during the disinfection process for the pipeline , Is it ok to test the...
Dear ALL ,
I have two questions :
In general , the maximum working pressure for the ductile pipe for water systems is 350 psi , I have a design for water transmission pipeline with 25 bar working pressure , From your experience with the ductile pipe , IS IT OK to use ductile pipe for this...
Can we weld a ductile iron flange or cast iron flange with steel pipe , and can we weld a steel flange with dutile iron pipe , to be more specifically :
Can we weld :
1. ANSI/AWWA C110/A21.10 Ductile iron flange with Steel pipe
2. ANSI B16.1 Cast iron raised face Class 250 , Class A Flange...
Dear All ,
This question is related to the welded steel pipes that will be used for water project , the sizes of the pipes are 3" , 4" , and 6" . In the shop drawings of the pipeline that have the three sizes of pipes , the profiles are showing Standards bends used for any change in...
