This post will focus on good sanitary pump piping practices and things you should keep in mind for your next sanitary PD pump install.

We wanted to use this post as an opportunity to highlight a success we recently had working with a customer to incorporate the Quattroflow quaternary diaphragm pump.

Now that we know what BHP, VHP, and WHP are, we can better understand the efficiency of a pump as well as the total power requirements. The efficiency of a pump is the ratio of the WHP to the BHP or total horsepower consumed.

One distinguishing factor are the 17-4 PH shafts. 17-4 PH steel has been chosen by Waukesha, and copied by others, because of the extended service it offers under extreme conditions.

In pump sizing, vapor pressure is a key check in evaluating suction conditions and the net positive suction head available to the pump. In order to pump a fluid, we need to deliver fluid to the inlet of the pump.

While most fast talking sales guys eager to get an order can get any pump sizing application reasonably close, few [...]

Hopefully this posts sheds some light on the difference between flow rate and flow velocity. While flow rate and flow velocity are related, they are not the same, and both need to be taken into account when sizing a pump.

But the Quattroflow pump has properties that make it an excellent sanitary metering pump in applications beyond biologics.

In previous posts we have gone over different aspects of sanitary metering and dosing systems including defining the criteria for [...]

To ensure constant, uniform flow, suction head must be kept constant. Previous posts have focused on issues like pump suction and cavitation. Today we’ll build upon this and discuss balance tanks and their application in metering and dispensing processes.

Shear is defined as relative motion between adjacent layers of a moving fluid. When one layer of a fluid moves adjacently to another layer of fluid, it can begin to exhibit the deleterious effects of shear. Shear rate is defined as the measure of the extent or rate of relative motion between adjacent layers of a moving fluid. Therefore:

In the wine industry, low shear and gentle handling of grapes is essential. For viticulturists, gentle handling is important in [...]

What is a Food Grade Lubricant? Food grade lubricants perform the same technical functions as any other lubricant. Their job [...]

One of the worst low NPSH applications is CIP return where the fluid to be pumped often has a lot of entrained air and foam.

The S200 is offered with an excellent water for injection (WFI) configuration with a built in double mechanical seal flushing arrangement. We are convinced this is the best WFI sanitary centrifugal pump on the market. We have sold hundreds of S200 pumps for WFI applications over the past 10 years and have had no issues with them. Almost all of our largest pharmaceutical customers have standardized on the S200 for WFI.