In April’s webinar, instructor Randy Bennett of Leistritz will introduce the basics of positive displacement pumps, types of PD pumps, and a comparison of PD and centrifugal pumps.
Tag Archives: positive displacement
White Paper: Packing a Punch- Sealing Reciprocating Power Pumps
Reciprocating pumps vary significantly from centrifugal pumps in how they seal the high-pressure areas of the pump from the atmosphere. While the theory behind sealing is simple, practical implementation often leads to issues like leakage and downtime.
The successful operation of reciprocating power pumps hinges on a careful understanding of their sealing mechanisms and meticulous maintenance practices to ensure long-term reliability and minimal downtime.
Download our latest white paper published with Pumps & Systems magazine to read Dr. Gary Dyson’s discussion of how low flow affects performance and what can be done to optimize operation and reliability.
Learn more about Hydro’s engineering services or learn more about reciprocating pumps.


