DESMI Overhaul video NSL centrifugal pump monobloc NSL150 265 A02

Overhaul - DESMI NSL centrifugal pump monobloc. For this overhaul the service engineer will use DESMI spare parts kit with genuine spare parts.
Chapters:
00:00 - Intro
00:45 - Spare Parts Kit
01:24 - Overhaul starts
05:00 - Check the shaft for damages
05:57 - Clean shaft seal cover and check for flatness and cracks
07:01 - Exchange of mechanical shaft seal using special tool
09:31 - Correct lubrication of O-ring (imported)

[@denizcracoglu6739]

This is the chillest video i've ever watched

[@thomastrang4815]

I enjoyed every moment of this training! Many thanks!

[@lkkjhtemmexv1838]

THIS GUY IS NOT A MECHNANIC. HES JUST A ROBOT.
HE DIDNT STUDIED MECHNICS, HE DONT KNOW WHAT HES DOING.
HE RELLY NEEDS TO STUDY MECAHNICS TO HAVE THE MECHANIC EYE.
A RELA MECHNIC WORTHS MANY DOLLARS...ROBOSTS ARE JUST CONVENIENT WORKERS, GOOD LUCK EMPLOYING PEOPLE WITH NO MECHANIC KNOWLEDGMENT.

[@nickledimez4012]

Excellent! Thank you for posting. Also nice tidy shop!!

[@MomsSpecialKitchen]

Wow amazing great sharing friend 👌

[@ajeetsingh9196]

Yeah this good learning platform.
Proper best overhauling.

[@kumarsujan9200]

very nice your training moments so thanks

[@jahedkn]

Thanks man to gain knowledge from u

[@josephjackson1310]

Nice refresher

[@skmojammelhaque9790]

Thanks so much for this video & beautiful vudeos

[@DESMIAS]

Thank you :-)

[@arifsaifi7605]

Thank for upload it

[@tariquemallick6895]

M speechless being very honest

[@yellowflower4952]

very good!
thank you.

[@suhyeonan2256]

Thank you sooo much

[@subevo35]

Good video. Small criticism no soft jaws in vice plus quicker with impact gun to remove bolts etc.

[@christycairns5593]

❤ nice one

[@Eric-sk4dj]

When fitting the impeller back over the shaft, does the mechanical seal shaft spring get compressed down over the keyway?

[@DESMIAS]

Yes :-)

[@kanwarDbulley]

No wear rings in your pumps? why no mention of clearances b/w impellor and casing. ?

[@DESMIAS]

Yes - the NSL pump has wear ring(s). Please refer to actual pump manual regarding acceptable clearance.DESMI pump manuals are found here: www.desmi.com/centrifugal-pump-manuals.aspx

[@hoalbert]

Some of our brand new Desmi vertical pumps impellers are rubbing against the housing when turning the pumps shaft with hand. Any suggestions? We have a lot of Desmi Pumps in the warehouse to be installed on the ship in future. Thanks

[@DESMIAS]

Please check/ensure that the pump casing is not overloaded with forces / moments from the piping system - this might deform the pump casing and result in impeller rubbing against wear ring(s)

[@DESMIAS]

And for more information, please do not hesitate to contact us via [e-mail]

[@hoalbert]

@@DESMIAS Thanks for the info. Will email [e-mail]. No the pumps are not installed yet and it is in the warehouse for long term storage for 6 months to a year before they get installed on the ship. Part of the storage maintenance is to turn the pump shaft once a month. When turning with hand you can feel some of the pumps impeller is touching the housing.

[@adarshks674]

What do you call the material handling set up you have with remote control for moving the pump?

[@DESMIAS]

We use a remote-controlled crane by the workstation. Other options could work, as long as safety, weight and mobility and is taken into consideration and in place :-)

[@arifsaifi7605]

Plz upload some turbine boiler video

[@DESMIAS]

Hi Arif - thank you for your comment and suggestion, but unfortunately we do not have a turbine boiler video available. DESMI manufacture, sell and service pumps and pumping solutions. All video material is available at our you tube channel th-cam.com/channels/RxHPjrgOLvBEgsDcHnq1ZQHave.html a great day.

[@rahimys6135]

Why didn’t check for shaft run out?

[@DESMIAS]

See 5:18 where we mention "check the shaft for damages" :-)Have a great day.

[@rahimys6135]

Yes i know you check the shaft for damages but should check shaft with dial indicator to determine whether the shaft is bend or not..that’s what i mean..if the shaft using component or cartridge seal, always check stuffing box perpendicularity and concentricity to ensure it’s still within tolerance to avoid seals premature failure..thanks..have a good day..

[@latestbuzz5066]

Can anyone please tell me what is the exact name of that Coupling.

[@DESMIAS]

This pump does not use a regular coupling. Our model A02 is designed with a short motor bracket frame which means that we use a kind of pipe coupling which is fitted directly at the motor shaft. This design also eliminate the requirements of pump bearings.

[@latestbuzz5066]

@@DESMIAS thank you for your reply 🙏

[@davidmarchanvasquez4600]

what kind of coupling is it ?

[@DESMIAS]

Hi David. The easy answer is Monobloc Coupling and this of course comes in various sizes. You can read more about the NSL pump and the coupling here: www.desmi.com/desmi-products/nsl-centrifugal-pump.aspx

[@davidmarchanvasquez4600]

DESMI thank you so much for the information !!!

[@ahmedalhashimi4922]

Could someone please clarify to me why the bearings had to be heated?

[@DESMIAS]

Hi A. Specter - thank you for your comment. The bearing is heating for easy mounting on the shaft.For more information, please do not hesitate to contact us at [e-mail]

[@ahmedalhashimi4922]

That's what I had in mind, thank you for replying.

[@lkkjhtemmexv1838]

@@ahmedalhashimi4922 iF YOU DONT KNOW THIS, this is so basic, yor wasting your time trying to learn mechnics.
Obviously your are not going to do that if you want the pump to last.

[@ahmedalhashimi4922]

@@lkkjhtemmexv1838 Nobody is talking to you, and perhaps you should spend less time on TH-cam, and more time learning how to spell correctly.