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positive-displacement-pumps

Design and analyze positive-displacement pumps for sizing and efficiency.

45|14|Updated Nov 7, 2025
Search Tags:#fluid-dynamics#pump-design#positive-displacement#gear-pump#piston-pump#screw-pump#volumetric-efficiency
One-click install
npx skills add https://github.com/Soljourner/claude-engineering-skills --skill positive-displacement-pumps
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: positive-displacement-pumps
Source: https://github.com/Soljourner/claude-engineering-skills/tree/main/skills/thinking/pump-design/positive-displacement-pumps
Command: npx skills add https://github.com/Soljourner/claude-engineering-skills --skill positive-displacement-pumps

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires numpy.

What problem does it solve?

Engineers design, evaluate, and select positive-displacement pumps (gear, piston, and screw types) for high-viscosity fluids, high-pressure applications, and metering tasks.

Core Features & Use Cases

  • Displacement and flow calculations for gear, piston, and screw PD pumps.
  • Volumetric efficiency, slip, and power calculations to predict performance across pressures and viscosities.
  • Pulsation analysis and dampening considerations to minimize flow ripple.
  • NPSH assessment, material selection, and maintenance planning guidance for high-risk services.
  • Example-driven workflows with calculation steps and practical sizing guidelines.

Quick Start

Provide the fluid properties, desired flow, and operating pressure to receive a PD pump sizing and selection plan.

Frequently Asked Questions about positive-displacement-pumps

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I calculate flow rate and slip for a positive-displacement pump?▼

Positive-displacement pump sizing calculates displacement and flow based on pump geometry, speed, and fluid properties. It evaluates volumetric efficiency, slip, and power requirements to predict actual performance across varying pressures and viscosities.

How do I size a gear, piston, or screw pump for high-viscosity fluids?▼

Sizing gear, piston, or screw pumps for high-viscosity fluids involves calculating displacement and power requirements. The workflow evaluates volumetric efficiency and slip to ensure the selected pump meets desired flow and high-pressure operating conditions.

What causes flow pulsation in PD pumps and how do I size a dampener?▼

Flow pulsation in positive-displacement pumps arises from the cyclic chamber filling and displacement mechanics. Pulsation analysis evaluates flow ripple characteristics to guide dampening considerations and minimize pressure fluctuations in the discharge line.

How do I assess NPSH requirements for positive-displacement pump services?▼

Assessing NPSH for positive-displacement pumps involves evaluating suction conditions and fluid vapor pressure to prevent cavitation. The analysis checks available NPSH against required margins, specifically addressing high-risk and high-viscosity services.

Can I evaluate material selection and maintenance needs for high-pressure PD pumps?▼

Evaluating material selection and maintenance for high-pressure positive-displacement pumps is supported within the workflow. The analysis provides guidance on material compatibility and maintenance planning to ensure reliable operation in demanding services.

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