NPSH Margin for Rotodynamic Pumps / 1 Hour / June 10, 2025 / Webinar
Recorded On: 06/10/2025
- Registration Closed
NPSH Margin for Rotodynamic Pumps
Date: Tuesday, June 10, 2025
Time: 1:00 PM - 2:00 PM (ET)
PDH Credits: 1.0
Overview:
This webinar explores key principles from ANSI/HI 9.6.1 Rotodynamic Pumps – Guideline for NPSH Margin, with a focus on the relationship between net positive suction head available (NPSHA) and net positive suction head required (NPSHR), and the importance of maintaining NPSH margin.
This session examines how an insufficient NPSH margin can lead to noise, vibration, performance loss, and overall reliability issues. Maintaining the recommended minimum NPSH margin is critical to both pump performance and reliability. This webinar provides guidance across ten distinct market segments and applications, explaining the need for NPSH margin by considering the characteristics of the pumped liquid (pumpage), the physical effects on the pump, and the system’s site conditions. This session also highlights key updates from the 2024 edition of the guideline and covers practical methods to compensate for insufficient NPSH margin. Whether you're a pump engineer, system designer, or maintenance professional, this webinar offers valuable insights into the importance of NPSH margin.
Learning Level - Basic:
This level of training is designed for individuals who are new to the subject matter. It covers basic concepts, skills, and practices. Participants acquire a foundational understanding of the topic and develop basic competencies.
Audience:
This course is designed for individuals who are new to the subject matter. It covers basic concepts, skills, and practices. Participants acquire a foundational understanding of the topic and develop basic competencies.
Learning Objective:
Upon completion, learners should be able to:
- Understand the relationship between NPSHA and NPSHR and the critical role of maintaining NPSH margin.
- Recognize the impact of insufficient NPSH margin on pump performance, including noise, vibration, and reliability.
- Learn how the pumpage characteristics, pump physical effects, and system conditions all affect the NPSH margin.
- Gain insights into key updates in the 2024 edition of ANSI/HI 9.6.1 and how they apply to maintaining pump system performance.
SKU: LW203B
Registration Fees
| Hydraulic Institute Member and Partner Types | Pricing |
| Member | $89.25 |
| Associate Member | $89.25 |
| Standards Partner | $89.25 |
| Training Partner | $89.25 |
| Industry Partner | $113.05 |
| Academic Partner | $113.05 |
| Non-Member | $119.00 |
Members, Associate Members, Standards Partners, and Training Partners of the Hydraulic Institute (HI) receive 25% discount on all available PSM training. Employees of Members, Associate Members, Standards Partner, and Training Partner organizations must log-in with their company email address in order for the discounted registration fee to apply. Industry Partners and Academic Partners receive 5% discount on all PSM training. Click here to learn more about HI membership.
Membership Question? Call us at 973-267-9700, email us, or view the HI website for more information.
Group Registration
Group registration discounts are available for webinars. If you are interested in registering a group, please contact us at training@pumps.org.
Refunds & Cancellations
All refund requests must be made in writing at training@pumps.org.
Webinar Instructions
- Click the Contents tab and select "View Webinar". After the webinar is completed, return to the Contents tab.
- Click "Complete Quiz for Webinar" to answer quiz questions. You will have 10 attempts and must get at least 80% correct to proceed. After completing the quiz, return to the Contents tab.
- For webinar series, continue this process until you complete all the webinar sessions.
- Click "Complete Webinar Survey" to provide your feedback on the webinar to PSM. Scroll down to view all feedback questions as there are questions that expand past the size of the window.
- After completing the survey, click the button “View/Print Your Certificate” in the box titled “Claim Credits and Certificate" to save or print your certificate of completion. If you ever lose your certificate, you can come back to the PSM website and view it on your transcript (found in the Dashboard).
Q&A During Webinar: During the Q&A portion of the webinar questions are welcome that relate to the material presented. The instructor will do their best to address them within the context of the training provided. If time does not permit addressing questions received, PSM staff will make our best effort to provide an answer via email.
NOTE: Please note that the instructor is not able to provide consulting advice or interpretations of standards; therefore, these types of questions will not be addressed by the instructor.
Need Assistance?
If you are experiencing any log in issues, cannot access a course, need assistance claiming credit, or have other questions or concerns, please e-mail training@pumps.org for assistance.
Steve Fehniger
Principal Engineer
CDM Smith
Steven M. Fehniger, P.E. PSAP
CDM Smith –Water Services Group
Steven Fehniger is a Principal Engineer at CDM Smith. Mr. Fehniger has nearly 30 years experience in the design of water and wastewater processes and pumping systems. Over the last 15 years he has focused primarily on pumps and pumping systems in new and existing facilities working predominantly on larger applications for municipal clients.
Mr. Fehniger actively contributes to the development and updates of HI technical documents. He was awarded the 2019 Standards Partner of the Year for exceptional dedication and service. He is currently the Vice-Chair of NPSH Margin committee and Chair of the Pump Piping committee.
He obtained his B.S. Degree in Civil Engineering at Michigan Tech and M.S. Degree in Environmental Systems Engineering at Clemson.
PDH Credits
Upon the successful completion of this webinar and passing the required quiz, you will receive a certificate of completion. Note: 1.0 PDHs is equivalent to 0.10 CEUs or 1.0 Contact Hours
Licensed Professional Engineers
Continuing professional development is a vital component of the engineering licensure process. Most state licensing boards require continuing professional development as a condition for licensure and renewal of the license to practice engineering. The acceptance of continuing education as it applies to fulfillment of the state licensing requirements for professional designations is at the pleasure of the individual state licensing boards. It is the responsibility of the individual participants to be knowledgeable about their state requirements. Pre-approval of training providers and courses is not required by most state licensing boards, except for the following:
Florida Board of Professional Engineers
Pump Systems Matter is a board-approved continuing education provider for the Florida Board of Professional Engineers: License # CEA361.
New York State Board for Engineering, Land Surveying, and Geology
Pump Systems Matter is approved as a sponsor of continuing education for professional engineers in New York State: NYS Sponsor # 241.
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