VALVE MAGAZINE Summer 2024

MINING CASE STUDY Metal seated ball valve damaged due to abrasive media. CFD of new control Source: SAF flow environments and fluid properties that significantly impact the throttle character istics of the valve. In this project, the mine start-up phase produced

very high viscosity tailings, which are

considered a non-Newtonian fluid, requiring a Cv (flow coef ficient) correction method using high viscosity numbers. The science of valve sizing for non-Newtonian fluids is not exact, and there is no straightforward calculation; however, iterative approaches coupled with experimental data can assist a valve design engineer in ensuring the rated flow capacity of the valve can handle higher flow demands required with very high viscosity tailings fluids. This detailed flow and sizing analysis is a critical starting point in custom engineering a control valve for this type of service. The next step was the design and development of the valve trim components, which are the parts that control

Computational fluid dynamic (CFD) image of the valve with the custom trim from SAF. Source: SAF

Manufacturers Standardization Society OF THE VALVE AND FITTINGS INDUSTRY

‘24

SCHOLARSHIP AWARDEES

Congratulations to the 2024 Recipients of the MSS McClinton/Hannifin Scholarship Awards!

Jonah Byrd Morris, AL Auburn University

Brady Livingston Knoxville, TN Lenoir Rhyne University Computer Engineering Flowserve

Caralyn Conrad Ipswich, MA UMass Lowell Mechanical Engineering A.W. Chesterton

Mechanical Engineering American Flow Control

Sarah Livingston Knoxville, TN Tennessee Technological University Mechanical Engineering Flowserve

Jacob Mizer Beaver, PA Ohio University Mechanical Engineering AUMA Actuators

For more information on MSS scholarships, membership, or standards, please contact: membership@msshq.org or 703-281-6613 .

TECHNICAL VOICE OF THE INDUSTRY FOR OVER 100 YEARS. MSSHQ.ORG |

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VALVE MAGAZINE

SUMMER 2024