PineRidge
Super Member
Thanks for the info guys. The boom won't be any wider than 10' so I'm thinking of a 4 or 6 roller pump.
Cleaning roller pump
- Thread starter Laminarman
- Start date
PineRidge
Super Member
Thanks for the info guys. The boom won't be any wider than 10' so I'm thinking of a 4 or 6 roller pump.
GaryM
Veteran Member
I don't have a roller pump so if my question is a dumb one I'm asking forgiveness in advance.
I've been told that a roller pump works by having a set of rollers squeezing a rubber, or perhaps plastic, tube between the rollers and the internal walls of a cylinder. As the rollers are spun around in the housing the solution is pushed along between the sets of rollers. Is this about right?
And there are bearings on the rollers as well as the shaft they are attached to. But the product being pumped through the tube never touches the rollers or the inside of the housing.
So where is this corrosion that seizes the pump coming from?
I can understand that if the bearings get wet from spray drift or spillage they need some grease or oil. But it sounds as though you guys are saying the solution being pumped is causing corrosion.
Help me learn. /forums/images/graemlins/wink.gif
I've been told that a roller pump works by having a set of rollers squeezing a rubber, or perhaps plastic, tube between the rollers and the internal walls of a cylinder. As the rollers are spun around in the housing the solution is pushed along between the sets of rollers. Is this about right?
And there are bearings on the rollers as well as the shaft they are attached to. But the product being pumped through the tube never touches the rollers or the inside of the housing.
So where is this corrosion that seizes the pump coming from?
I can understand that if the bearings get wet from spray drift or spillage they need some grease or oil. But it sounds as though you guys are saying the solution being pumped is causing corrosion.
Help me learn. /forums/images/graemlins/wink.gif
GaryM
Veteran Member
I don't have a roller pump so if my question is a dumb one I'm asking forgiveness in advance.
I've been told that a roller pump works by having a set of rollers squeezing a rubber, or perhaps plastic, tube between the rollers and the internal walls of a cylinder. As the rollers are spun around in the housing the solution is pushed along between the sets of rollers. Is this about right?
And there are bearings on the rollers as well as the shaft they are attached to. But the product being pumped through the tube never touches the rollers or the inside of the housing.
So where is this corrosion that seizes the pump coming from?
I can understand that if the bearings get wet from spray drift or spillage they need some grease or oil. But it sounds as though you guys are saying the solution being pumped is causing corrosion.
Help me learn. /forums/images/graemlins/wink.gif
I've been told that a roller pump works by having a set of rollers squeezing a rubber, or perhaps plastic, tube between the rollers and the internal walls of a cylinder. As the rollers are spun around in the housing the solution is pushed along between the sets of rollers. Is this about right?
And there are bearings on the rollers as well as the shaft they are attached to. But the product being pumped through the tube never touches the rollers or the inside of the housing.
So where is this corrosion that seizes the pump coming from?
I can understand that if the bearings get wet from spray drift or spillage they need some grease or oil. But it sounds as though you guys are saying the solution being pumped is causing corrosion.
Help me learn. /forums/images/graemlins/wink.gif
ronjhall
Super Star Member
The Hypro pumps have a rotor with the plastic rollers setting in notches. When the rotor is turned the rollers are forced out against the outer wall of the pump housing. This action is what makes the pump, pump.
Here is a link to a Hypro manual on the model I have. Click Here Drawing of pumps is on page 9-10. You can order them made completely out of stainless steel and other non corrosive materials. I have a cheap one. The housing and rotor are made out of cast iron. The rollers are plastic. If I do not put antifreeze in the pump the corrosion will lock the rollers up so the pump will not turn.
Here is a link to a Hypro manual on the model I have. Click Here Drawing of pumps is on page 9-10. You can order them made completely out of stainless steel and other non corrosive materials. I have a cheap one. The housing and rotor are made out of cast iron. The rollers are plastic. If I do not put antifreeze in the pump the corrosion will lock the rollers up so the pump will not turn.
ronjhall
Super Star Member
The Hypro pumps have a rotor with the plastic rollers setting in notches. When the rotor is turned the rollers are forced out against the outer wall of the pump housing. This action is what makes the pump, pump.
Here is a link to a Hypro manual on the model I have. Click Here Drawing of pumps is on page 9-10. You can order them made completely out of stainless steel and other non corrosive materials. I have a cheap one. The housing and rotor are made out of cast iron. The rollers are plastic. If I do not put antifreeze in the pump the corrosion will lock the rollers up so the pump will not turn.
Here is a link to a Hypro manual on the model I have. Click Here Drawing of pumps is on page 9-10. You can order them made completely out of stainless steel and other non corrosive materials. I have a cheap one. The housing and rotor are made out of cast iron. The rollers are plastic. If I do not put antifreeze in the pump the corrosion will lock the rollers up so the pump will not turn.
GaryM
Veteran Member
OK, now I see that these pumps, at least some, don't have any tubing inside. I used to donate Platelets and their machines had a system where the tubing that transfered the blood into and out of the machine was placed around a cylindrical form and a wheel with five or six rollers squeezed the tubing against a backing plate. When the wheel rotated the rollers rolled against the tube and pushed the fluid along inside the tube. The fluid never touched anything but the inside of the tube. I was informed by one of the nurses that it was a roller pump. And perhaps it was.
But the link you furnished indicates no tubing at all. So now I can understand where the corrosion is coming from. /forums/images/graemlins/cool.gif
Thanks!
But the link you furnished indicates no tubing at all. So now I can understand where the corrosion is coming from. /forums/images/graemlins/cool.gif
Thanks!
GaryM
Veteran Member
OK, now I see that these pumps, at least some, don't have any tubing inside. I used to donate Platelets and their machines had a system where the tubing that transfered the blood into and out of the machine was placed around a cylindrical form and a wheel with five or six rollers squeezed the tubing against a backing plate. When the wheel rotated the rollers rolled against the tube and pushed the fluid along inside the tube. The fluid never touched anything but the inside of the tube. I was informed by one of the nurses that it was a roller pump. And perhaps it was.
But the link you furnished indicates no tubing at all. So now I can understand where the corrosion is coming from. /forums/images/graemlins/cool.gif
Thanks!
But the link you furnished indicates no tubing at all. So now I can understand where the corrosion is coming from. /forums/images/graemlins/cool.gif
Thanks!
PineRidge
Super Member
Gary we both learned something today as I wasn't aware why it was called a roller pump either. Makes perfect sense now.
PineRidge
Super Member
Gary we both learned something today as I wasn't aware why it was called a roller pump either. Makes perfect sense now.