Reagent pump selection.

[itsmoked]

I'm not having any success finding a pump, actually two, that meet the pressure and flow rates I need.

I have to pump a reagent (bleach) into a pressurized line. The line is at 120psi and I have to flow at 0.2gal/hr(12ml/min).

All the pumps I'm finding/have-tried are not doing the job. The typical reagent pulse pumps are abysmal. The pulses are also creating havoc. I greatly desire a continuous pump. Most pumps in this low flow range seem to top out around 100psi.

If I need to, to match a pump, I can dilute the reagents up to 10x so those numbers would change up to 2gal/hr(120ml/min).

Any suggestions?

Keith Cress
kcress -

http://www.flaminsystems.com

 

[MikeHalloran]

A gear pump might work, if you're prepared to replace it regularly.

What you need is a really small triplex plunger pump with glass pistons. I'm not aware that there is such a thing.

You could kluge up a triplex pump using air cylinders and a PLC instead of a crankshaft, I'm sure.





Mike Halloran
Pembroke Pines, FL, USA

 

[bimr]

Bran + Luebbe pumps should work in that flow range.

http://www.branluebbe.com/metering-pumps/procam/diaphragm-metering-pump-procam-family.asp

 

[DubMac]

If pulsation really screws with your system, you probably should look more in the direction of a rotary PD pump rather than a reciprocating PD pump. Many manufacturers of gear and rotary lobe type pumps for you service.