Pipe mix simulator for lab

[baihly]

I am looking for a device that can mix fluid in a short pipe (<3ft) with a plunger on either side of the pipe to move the fluid back and forth. Does anyone know of a product or a company to inquire about such a product

 

[kenvlach]

I have 2 ideas:
1) Platers sometimes use small electric motors with an eccentric crank & connecting rod to make cathode bars move back & forth (to agitate parts in plating solution), supported by rollers at each end of the tank. You could use an overhead oscillating bar, and drop down 2 angle irons, one at each end of the pipe, to move some pistons.
For equipment suppliers, check

http://www.finishing.com/index.html

2) Get yourself an AOD (air-operated diaphram) pump. Put a plug in the inlet, remove one of the upper check valve balls, and put the outlet hose into the end of the pipe (best to use a threaded steel or SS hose barb and the right bushings to connect directly to the pipe center). With this pump configuration, it will push fluid into the pipe on one stroke and then suck it back on the return. You can adjust the velocity of stroking with an air pressure regulator.
You can look up the volume of one pump stroke at mfr. sites, e.g., Wilden or Graco 'Husky'

http://www.wildenpump.com/catalog/index.cfm

http://www.graco.com/Distributors/DLibrary.nsf/733cece1c4c4aad7862568d6006b289b!CreateDocument

 

[kenvlach]

I have 2 ideas:
1) Platers sometimes use small electric motors with an eccentric crank & connecting rod to make cathode bars move back & forth (to agitate parts in plating solution), supported by rollers at each end of the tank. You could use an overhead oscillating bar, and drop down 2 angle irons, one at each end of the pipe, to move some pistons.
For equipment suppliers, check

http://www.finishing.com/index.html

2) Get yourself an AOD (air-operated diaphram) pump. Plug the inlet, remove one of the upper check valve balls, and put the outlet hose into the end of the pipe (best to use a threaded steel or SS hose barb and the right bushings to connect directly to the pipe center). With this pump configuration, it will push fluid into the pipe on one stroke and then suck it back on the return. You can adjust the velocity of stroking with an air pressure regulator.
You can look up the volume of one pump stroke at mfr. sites, e.g., Wilden or Graco 'Husky'

http://www.wildenpump.com/catalog/index.cfm

http://www.graco.com/Distributors/DLibrary.nsf/733cece1c4c4aad7862568d6006b289b!CreateDocument