23-09-2014, 03:03 PM
TO DESIGN PLATE/ SEAL& ITS HOUSING. SOFTWARE USED- AUTOCAD 2012 Seals or mechanical housing are used to hold mechanical parts or the devices strongly so, that they do not wear or loose the parts even at high vibrational movements. It is a fact that seals fail. They do not wear out. Most often something comes along to disturb the smooth running of the pump and you are facing a steady leak which has already destroyed your seal by damaging the seal faces. But there is another case. The seal that leaks on start up after maintenance. A seal that lasts a week without letting go is generated thought to be OK. By the way that�s rule of thumb. A seal that leaks after maintenance has been badly installed. It is very unwise to ignore the basic checks listed here because without these there is no certainty that your seal will perform. Pre � installation checks. 1. You have the correct seal and all the parts needed for the replacement. 2. You have the pump drawing to hand with installation dimensions or the seal manufacturer�s drawing. 3. The pump stuffing box is cle
TO DESIGN PLATE/ SEAL& ITS HOUSING.
SOFTWARE USED- AUTOCAD 2012
Seals or mechanical housing are used to hold mechanical parts or the devices strongly so, that they do not wear or loose the parts even at high vibrational movements.
It is a fact that seals fail. They do not wear out. Most often something comes along to disturb the smooth running of the pump and you are facing a steady leak which has already destroyed your seal by damaging the seal faces. But there is another case. The seal that leaks on start up after maintenance. A seal that lasts a week without letting go is generated thought to be OK. By the way that’s rule of thumb.
A seal that leaks after maintenance has been badly installed. It is very unwise to ignore the basic checks listed here because without these there is no certainty that your seal will perform.
Pre – installation checks.
1. You have the correct seal and all the parts needed for the replacement.
2. You have the pump drawing to hand with installation dimensions or the seal manufacturer’s drawing.
3. The pump stuffing box is clean.
4. On split casing pump the gasket does not extend into the stuffing box.
5. The shaft is free of scratches and burrs, threads are taped, and keyways are filled flush with the shaft surface to prevent seal elastomers from being cut on the keyway edge (a dummy wooden key insert is ideal).
All the seal parts are in their protective corner at this stage
TO DESIGN PLATE/ SEAL& ITS HOUSING.
SOFTWARE USED- AUTOCAD 2012
Seals or mechanical housing are used to hold mechanical parts or the devices strongly so, that they do not wear or loose the parts even at high vibrational movements.
It is a fact that seals fail. They do not wear out. Most often something comes along to disturb the smooth running of the pump and you are facing a steady leak which has already destroyed your seal by damaging the seal faces. But there is another case. The seal that leaks on start up after maintenance. A seal that lasts a week without letting go is generated thought to be OK. By the way that’s rule of thumb.
A seal that leaks after maintenance has been badly installed. It is very unwise to ignore the basic checks listed here because without these there is no certainty that your seal will perform.
Pre – installation checks.
1. You have the correct seal and all the parts needed for the replacement.
2. You have the pump drawing to hand with installation dimensions or the seal manufacturer’s drawing.
3. The pump stuffing box is clean.
4. On split casing pump the gasket does not extend into the stuffing box.
5. The shaft is free of scratches and burrs, threads are taped, and keyways are filled flush with the shaft surface to prevent seal elastomers from being cut on the keyway edge (a dummy wooden key insert is ideal).
All the seal parts are in their protective corner at this stage