Recent content by mmmumuw

My favorite quotes from BigInch: "What kind of valve is that??? Broken?" Hahaha Made by BROKEN valve Maschinenbau ... ;) The installation should be simple. It is just cold water pump to filter, to HX and get back to open tank and go to pump suction. O ya, the opened valve bring the raise of...

Thanks for the reply. The pressure reading is at the pump discharge. The pump flow/pressure always follows the performance curve line, right? The curve is rather steep. So if the pump flow increases, the pressure must be less, i.e opened valve should release some numbers of friction losses...

Perhaps I missed this class while in college ... I understand that the actual pumping capacity (and head) is the result of intersection between pump curve and system curve. there is a pump supplying cold water for a typical heat exchanger process (cooling). By the ampere meter reading, we can...

Hi.... i have problem in boiler feed pump, the NDE bearing is over heat and burn only in seconds, we replace with new bearing, and the problem still same. 10 stages pump with balancing device and balancing pipe, gland packing. type of bearing tapper roller bearing, balancing drum is new...

Actually I want to compare the energy required, in case there is someone ever calculate it for real. I imagine, for a truck hauling, the vehicles need to bring the truck bodies, one trip full contained and one trip fully empty for one work cycle. In the pipeline (in this case, paste pumping) the...

Thanks David, It is in the open pit mining sites. We are used to applying trucks to transport thin mud(o-o not thick-sorry, misters)after dewatering. (Actually they add it with dry solid) for better handling. First, I guess pipeline is better, because the trucks also carry their own weight. But...

Hello, I wonder if someone ever calculate the comparation of power consumption between the thick mud transportation by pipeline and by truck. If necessary The capacity is say it 300 m3/hr height 250 m and length 2000 m. But for dump truck, it should be much longer because dump trucks have to...

Dear All, sorry for given uncomplete data. the first vendor guarantee a maximum effective vibration velocity of 11 mm/s (rms) measured at the cylinder edge with requirement : highly adjusted, rigid foundation with rigidly fixed pipes. the effective vibration velocity of the foundation inferior...

Dear All, i have a question regarding to our decission to install a unit of oxygen compressor. we have 2 candidate of compressor vendor which all have design : vertical, dry running - oil free type, comply to API 618 4th edition its service with output pressure up to 40 BarG and shaft power 350...

www.bumicahayaunggul.com. It is a local rep, but good enough to make a brief answer of what u r asking Thx

What is the purpose of 5 X DN discharge?

I read from a pump manual that we should be avoid any fittings, including bends, compensators, valves in the area of 5 X DN suction and 5 X DN discharge. I guess if before suction, the fitting will make the flow less smooth and can make cavitation. But what is the purpose of this 5 x DN? Thanks...

I mean solid rigid body.

Dear Sir, How do we compute the thermal expansion of pump? Can we assume it as a solid body, so using the thermal coefficient of pump casing? Anyone have experience of this, please your help. Cheers, Muwardi

Thanks Artisi, It is side channel pump with star impeller design. Muwardi