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Hi Artisi, I mean make the last spool connected to the pump nozzles parallelism and gap within tolerance by heating or cutting of the pipe flanges as well as adjusting the supports. Then when alignment, gap and parallelism is achieved , I would have to remove the last spool again then hydro...

Hello, Just want to ask if when is the best time to did-engage the mechanical seal setting plates which is normally set by Pump Vendor in the factory before shipment of the pump to site. Normally, this is the first thing that I do before doing the primary alignment(or any rotation of shaft) of...

Thanks LittleInch, In this case , I would have them fit it up then remove the pipe for welding then let them hydro test first before installing again for parallelism/torqueing and let them figure out how to align it (I hope our fitters are good enough to have the pipe alignment within limits...

Thanks JJPellin, For 2 of my pumps, I have no other choice but to do as you said because I already have grouted it. But I made sure that the mounting pedestals were leveled to at least 0.25 mm/m for those. As you said, pipe strains I will take care with the allowable parallelism, flange gap and...

Hi Artisi, Thanks for your response. I'll consider doing that. Thanks again. Tilas

Hi Artisi, The pump and motor is in one common baseplate , within the baseplate they sit on two separate pedestals - one for the pump and one for the motor (machined mounting surface welded to the baseplates). Yes , either way we are going to align the pump properly before and after grouting...

Thanks Artisi, That will solve my flange level problem. But it will give me off reading's on my motor/pump pedestals level. So flange level is more important than the pedestal/baseplate leveling? My baseplate could be twisted or something that's why I can both to be within level limits...

Hi JJPellin, Thanks for your response. But what if the I can make the motor/pump pedestals within API 686 acceptable limits like within 0.25 mm/m (API 686) , but the pump flange the best that I can get is like 0.40mm/m. In this case I cannot do anything on the pump flange level as you have...

Hi, I have an API 610 pump being installed at site. Before we could go with the final alignment, we would need to align the piping with the pump flange. There is a chance that the piping might need heating or cut and weld to have the flange gap and angularity to within API 686 criteria (in...

Hi, I am currently installing my API 610 pumps as a pre requisite for grouting . I had the motor removed and have the motor mounting pedestals leveled to at least 0.25mm/m (API 686 requirement).I have leveled the pump mounting pedestal also within the same tolerance (without removing the pump...

Hi Artisi / LittleInch, Thank you so much for the recommendations. Noted for the pipe valve arrangement for initial prime and re-prime(as necessary). And noted also that we don't need to have a self priming pump for this arrangement(only make provisions for initial/re-prime). Tilas,

Hi Artisi, LittleInch, In this case I would go with the self priming pump. However, I might have problems on putting the pump directly on top of the sump due to some space constrains. I could put the pump on the grade(which is lower than the sump see attached sketch) but I don't know if this...

Hi LittleInch, Sorry for not explaining finally what we have agreed to do. So we decided to go as per the original plan which is to remove the suction strainer of P-1207A and connect the suction line of P-1209A there.We will operate all the 3 pumps together and try to maximize the flows while...

Thank You for your response LittleInch,

Thanks Gerhardl :-)

Hi Guys, As follow up to the above , I have attached the sketch of options for the pump replacement. Please give me your thoughts on this , which one is the best replacement type and why...

Hi Guys, We currently have an existing 30 m3/hr submerged motor centrifugal pump for a water service (Density 1000 kg/m3) with suspended solids 4-5 gram/liter. It was pumping the liquid from the pit to a differential pressure of 0.90 kg/cm2. Now our Operations people again want's to have the...

Hi Artisi, Thank you so much for your response. Regards, Tilas

Hi Guys, Just wanted to know couple things with self priming pumps. 1. If the pump manufacturer says it is capable of suction lift of 6 Meters , then that means as long distance from highest point of the suction pipe to the surface of liquid plus head losses on the suction piping should be...

Hi, We are currently looking for a possible Vendor to replace the existing Ethylene Transfer Pumps that we have at site. The old pumps were not so reliable and we end up servicing it every now and then. Thus we are exploring the possibility of sourcing the pumps from another Vendor. The...