Reciprocating Pump - Piston Rod Load

The piston rod acts to transfer reciprocating motion and power into work energy at the fluid end. The seals at the outside diameter moves the with piston and determines the limits of pressure.  Lubricants ensure packing life and possible leaks.

𝑃𝑅𝐿  = 0.7854𝐷_𝑝²𝑃_𝑑

𝑃𝑅𝐿 − Piston Rod Load [lbf]

𝐷_𝑝 − Piston Diameter [in]

𝑃_𝑑 − Maximum Allowable Pressure [psi]

Input Parameters

1. To create a new case, click the “Add Case” button
2. Select the Pump Specific Speed application from the Pipeline Pumps module.
3. Enter Case Name, Location, Date and any necessary notes.
4. Fill out all required fields.
5. Make sure the values you are inputting are in the correct units.
6. Click the CALCULATE button

• Piston Diameter [in]
• Maximum Allowable Pressure [psi]

Outputs/Reports

1. View the results.
2. If an input parameter needs to be edited be sure to hit the CALCULATE button after the change.
3. To SAVE, fill out all required case details then click the SAVE button.
4. To rename an existing file, click the SAVE As button. Provide all case info then click SAVE.
5. To generate a REPORT, click the REPORT button.
6. The user may export the Case/Report by clicking the Export to Excel/PowerPoint icon.
7. To delete a case, click the DELETE icon near the top of the widget.

• Piston Road Load [lbf]

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