Hello guys
If you are currently using diaphragm pumps in your work and having success the odds are good you are educated on the basics of maintaining your diaphragm pump. I’m also pretty sure the more you learned, the more successful your pumps were…right? Although today’s diaphragm pumps are more sophisticated, better valves, diaphragms, drive mech- anisms, etc. than years ago; they still require a basic understanding for a successful program. Peristaltic pumps on the other hand are initially simpler to use, and require less experience to operate under adverse conditions. This is where we begin:
Diaphragm metering pumps –
Pros
1. Well maintained a diaphragm metering pump cost you less to operate over time.
2. Diaphragm metering pumps are more energy (power) stroke, but far less on the back stroke.
3. Overcoming line pressure is easier with properly sized diaphragm metering pumps.
4. Less danger of leakage - Poorly maintained, diaphragm metering pump way lose its prime, but seldom leaks, or damages area.
Cons
1. Solution being pumped needs to be clean - diaphragm metering pumps operate best when the solution being pumped is clean, free from particulates. The reason; diaphragm metering pumps have check valves in the suction and discharge side of the pump head. If either set of check valves prime will occur
pumps Prime best when there is little to no back valve to aid in this challenge. phragm pumps prime best when the valves (check balls) are clean and there is little to no back pressure, and the diaphragm stroke is on full or maximum setting. adjustment) is on a low setting. Most diaphragm metering pumps has a diaphragm stroke (feed rate) adjustment, and some also have a motor speed adjustment. Priming is best achieved when the
stroke adjustment is above the 60% area. These adjustments can be confusing, try to minimize your variables as much as possible. Avoid adjusting the diaphragm stroke length to low, the pump loses ef-longer stroke lengths. Insummary (diaphragm metering pump) will require you to be a bit more knowledgeable about
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