Patrick Harding
Member
I've been using small shureflo diaphragm pumps for spraying degreaser and also for pushing chem through downstream injectors on our power washers. Unfortunately they seem to always give me problems and last a year tops, so I have been looking for a pump that I could replace them with and came across "peristaltic pumps". They look like good pumps for chemicals as none of the chemical comes into contact with the pump components; all the chem is kept in the hose. Anyways it looked interesting and I was wondering if anyone had tried using them before. Any thoughts?
Here is an article on the type of pump I am talking about:
http://blue-white.com/peristaltic-pumps-excel-in-chloramine-application/
From the article:
"Peristaltic pumps use a circular pump “head” and simple rotating roller design to gently squeeze the fluid through a piece of specially designed tubing. With no valves to clog, metal springs to corrode or ball seats to fail they can effectively pump both fluids and gasses, eliminating the possibility of vapor locking and loss of prime. A peristaltic pump’s output is not affected by changes in the system pressure (it therefore does not have a pump output curve) making its output much more consistent than a diaphragm pump."
Here is an article on the type of pump I am talking about:
http://blue-white.com/peristaltic-pumps-excel-in-chloramine-application/
From the article:
"Peristaltic pumps use a circular pump “head” and simple rotating roller design to gently squeeze the fluid through a piece of specially designed tubing. With no valves to clog, metal springs to corrode or ball seats to fail they can effectively pump both fluids and gasses, eliminating the possibility of vapor locking and loss of prime. A peristaltic pump’s output is not affected by changes in the system pressure (it therefore does not have a pump output curve) making its output much more consistent than a diaphragm pump."