So for further clarification and to make sure I have it right... In pumps designed with a lantern ring in the packing gland, like the one shown, water travels through the ring and then runs along the shaft between the shaft and the packing, back to the pump suction and also out of the packing gland... meaning "some leakage" out of the packing gland is normal. Is this correct and is this true for all pumps that use a lantern ring in the packing gland? Furthermore, pumps with packing material that is "self-lubricated" and does not create a lot of heat, such as graphite impregnated or teflon packing... these do not need lantern rings? And leakage out of the packing gland is not normal nor necessary for cooling and lubricating? ...And then obviously pumps with mechanical seals do not use lantern rings and should not leak at all. Thank you to anyone interested enough to respond!
Haven't been in the sealing business for 30 years, but it is/was my impression the lantern ring is used primarily for lubrication purposes to reduce heat. Perhaps depending on the application, you might replace it with packing entirely, but it is there for a reason. Leaking in packing is normal, tighten the gland as the packing wears down, lantern ring or not. Worthington Pumps come to mind, as does Allis Chalmers, and municipalities were the primary end users of split case horizontal pumps. I'm sure there's many more, but some applications forbade a mechanical seal (fire engine pumps) or the difficulty of limited space.
+Drew Wilson Hi Drew, yes Gland packing is one method of sealing the shaft entry into the pump housing, the shaft drives the impeller, which in-turn expels the water. Without the packing the pump would leak severely and discharge pressure could not be maintained. Thanks for the question and for viewing the video.
I work on a dredger that has two multi stage pumps for jetting water off the arm running at 170psi. Gland packing is the most important part. If it becomes worn on the suction side then your pump will pull air in through it and loose pressure. If the packing is worn on the discharge side then you better get your drysuit on. We don’t have a lantern so we like the packings to leak at a rate of one drip every 3 seconds.
Main products: sealing gasket,gland packing,PTFE/graphite/asbestos products, ceramic fiber products, high temperature heat insulation and fireproof material. Free technical support (sealing, heat preservation, heat insulation, fire prevention problems) All products 1 piece can also be customized, 30 years of service experience, fast and safe shipping anywhere.
Thanks. Best video on this subject I've seen.
Great explanation, it gave me an insight about internal components of pump thank you
Thank you for this video and for an excellent explanation
Thank you, beautifuly explained.
Thank you for your support...cheers
Amazing video thank you I have a much better understanding now.
Very nice video 👍
Dear sir.I like your video please upload more video related to all rotating equipment. Thank you very much for this video
So for further clarification and to make sure I have it right... In pumps designed with a lantern ring in the packing gland, like the one shown, water travels through the ring and then runs along the shaft between the shaft and the packing, back to the pump suction and also out of the packing gland... meaning "some leakage" out of the packing gland is normal. Is this correct and is this true for all pumps that use a lantern ring in the packing gland? Furthermore, pumps with packing material that is "self-lubricated" and does not create a lot of heat, such as graphite impregnated or teflon packing... these do not need lantern rings? And leakage out of the packing gland is not normal nor necessary for cooling and lubricating? ...And then obviously pumps with mechanical seals do not use lantern rings and should not leak at all.
Thank you to anyone interested enough to respond!
Haven't been in the sealing business for 30 years, but it is/was my impression the lantern ring is used primarily for lubrication purposes to reduce heat. Perhaps depending on the application, you might replace it with packing entirely, but it is there for a reason. Leaking in packing is normal, tighten the gland as the packing wears down, lantern ring or not. Worthington Pumps come to mind, as does Allis Chalmers, and municipalities were the primary end users of split case horizontal pumps. I'm sure there's many more, but some applications forbade a mechanical seal (fire engine pumps) or the difficulty of limited space.
great video
Thank you for the video
+kevin ging Can you please upload more such videos?
Thanks 🙏
if you didn't put packing in the pump, what would happen ? would water just be spraying everywhere ? But the pump should maintain discharge pressure ?
+Drew Wilson
Hi Drew, yes Gland packing is one method of sealing the shaft entry into the pump housing, the shaft drives the impeller, which in-turn expels the water. Without the packing the pump would leak severely and discharge pressure could not be maintained. Thanks for the question and for viewing the video.
@kelvin .. does the gland packing play any cooling function of the pump?
I work on a dredger that has two multi stage pumps for jetting water off the arm running at 170psi. Gland packing is the most important part. If it becomes worn on the suction side then your pump will pull air in through it and loose pressure. If the packing is worn on the discharge side then you better get your drysuit on. We don’t have a lantern so we like the packings to leak at a rate of one drip every 3 seconds.
amazing!
Dear sir. I like your video. please upload more video related to pump detail
thanks; its really helpful🌷
Amazing & great
Thank you
Can you install a Lantern Ring backwards? What would happen and how long do they last?
What is the position of Teflon rings in between gland rope
Main products: sealing gasket,gland packing,PTFE/graphite/asbestos products, ceramic fiber products, high temperature heat insulation and fireproof material.
Free technical support (sealing, heat preservation, heat insulation, fire prevention problems)
All products 1 piece can also be customized, 30 years of service experience, fast and safe shipping anywhere.
Could you please tell me where can I find the artwork which is being shown in the beginning of the video ?
Hi Keven, I am looking for slinger rings in centrifugal pumps. are these the same which are you talking about?
Very good Vedio
Do you manufacture this pumps
can anyone tell me whats the difference between packing gland and gland packing
helpful explanation. can tone down the background music a bit
This sounds like the VP from HydroAire....?
What accent is that? Do I detect a hint of Northern Irish?
Great video. Dump the music
Jiwachh