Transfer pump: what do I have?

Greenfrog

Member
Got this at an estate sale for a few bucks as it looked interesting....
Craftsman motor, it runs. HP not shown on plate
Pump has pressure switch,but will remove it
Which one is intake? Which is outtake?
One upright T coupling has a tank valve/tire valve on it
I didn?t run it much...wasn?t sure if safe to run it dry
Parts soaking in penetrating oil for now
What do I have here?
I would like to rig this up to run off an older Cub cadet to pump water when there is power outage


cvphoto2630.jpg
 
A pump outlet would normally be the smaller port and have a pressure switch connected to it. An inlet is often a larger port than the outlet. I would expect the one you posted here follows those guidelines.
 
Sort of looks like a Homart Piston pump.

Water enters the pressure swiych side and discharges out the larger end.
 

It may pump water but I bet that you will be waiting a long time to get enough to wash your face with.
 
(quoted from post at 04:20:31 11/14/18)
It may pump water but I bet that you will be waiting a long time to get enough to wash your face with.

You might better get a generator to power the pump you are now using. I don't know what it uses in electricity. I would lean towards an inverter type generator, But maybe it could be one run with that Cub.

Dusty
 
Maybe I misled my intention in my original post....
I mean use the pump only and run the pump off the PTO pulley via a belt on the cub cadet . I have a CC108 and a CC 129. Mount it in front
of the tractor on some sort of frame.
 
IMHO, you have an uncommon/unique pump.

As you ask in your original post, it seems logical to me to identify it FIRST, and once you know what it's capabilities are you can move on and decide if it meets your needs.

I have NO idea what it is, but the post by "Mule Meat" "Water enters the pressure swiych side and discharges out the larger end."
seems a bit odd to me.

There's always special circumstances and "Mule" may well be correct, if he has some "inside knowledge" but the rest of us can't help wonder why the "pressure switch" would be on the "intake side" of the pump.
 
It kind of looks like a screw pump out of an early washing machine I made a water system out of one once. It would build a surprising amount of pressure.
 
More info on this pump...
Motor is 1/2 horse. Vintage, but with ball bearings. Runs nice. Googled the number on the plate and got info on it
Pump turns, am soaking it with Kroil penetrating oil. It does turn, but not real smooth.
Does anyone know how it might be made on the inside?.
Impeller? Screw type? Seems to be of aluminum. Kind of corroded on inside😝
 
(quoted from post at 18:03:57 11/22/18) More info on this pump...
Motor is 1/2 horse. Vintage, but with ball bearings. Runs nice. Googled the number on the plate and got info on it
Pump turns, am soaking it with Kroil penetrating oil. It does turn, but not real smooth.
Does anyone know how it might be made on the inside?.
Impeller? Screw type? Seems to be of aluminum. Kind of corroded on inside????

Greenfrog, I have never seen a pump like this one, but I have had many different pumps apart. You can see where the two flanges mate up. That is where you take it apart. Once you split it between the flanges you will most likely be looking at the impeller but there could possibly be a shroud or divider of some sort in there too. Impellors are usually held to the shaft by a nut and washer with a key in matching keyways on the shaft and in the impeller. Less commonly impellers are threaded on. There is often some sort of fixed seal under the washer that is under the nut. The impeller is removed next. This is where it gets dicey. hopefully the shaft is stainless steel and the impeller is bronze, then it should be persuaded to slide or thread off. if otherwise your chances of a clean disassembly are not good. Once you get the impeller off, you will be looking at the shaft seal, which you need to try to find a replacement for. Behind the seal is where the bearing is, which most likely is bad because you can feel the roughness as you turn it. Shaft seals normally are in two parts: one part seats tightly into the housing while the other is held against the first part by the impeller. I hope this helps, I have worked on a few where the only means of getting the rear part of the pump off from the motor was with a BFH.
 
More info on this pump...FYI:
I took it apart and found a helical screw type rotor inside of a rubber outside. Upon consulting my son who is a mechanical engineer, he shed more light on my strange pump.
This is an eccentric screw pump. A positive displacement pump. Good suction and good force.
Sometimes called a rotary lobe pump.
Might think of it like an auger pushing a liquid.
See Picts I hope to upload here.

cvphoto3468.jpg


cvphoto3469.jpg


cvphoto3470.jpg

There seemed to be a lot of white calcium material inside, thinking this might have been used ti transfer calcium chloride into tractor tires, as one of you posted in a reply.
There is some sort of universal joint on the end of the rotary shaft. I am holding it to the side. The black thing is hard rubber.
I hope to clean this up, reassemble it, and possibly use it.
 
(quoted from post at 18:14:02 11/23/18) Thx for your detailed reply. See the photos and other info that I have since added.

The shaft seal must be down at the bottom just behind the universal joint and the bearing would be behind the seal. Of course it is possible that the bearing is accessible from the back end towards the motor.
 

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