Knowledge Hub

Rotating equipment knowledge you can use

Practical articles for design, EPC review, hazardous area classification, reliability, maintenance and career development.

Showing all 51 articles

Hazardous Area Classification: Zone and Division System

A practical comparison of Zone and Division systems, gas and dust hazards, groups, temperature classes, equipment marking and selection considerations.

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API 610 Centrifugal Pump Selection: A Complete Workflow

Practical guidance on design data, pump type selection, operating range, NPSH, materials, driver sizing and vendor-offer review.

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Controlled-Volume Pumps: Core Principles, Graphs and Equations Explained

understand the fundamental working principles of controlled-volume pumps, commonly used for chemical injection, dosing, blending, and low-flow, high-pressure applications in the oil and gas and petrochemical industries.

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System Curves for Practicing Engineers

Build and interpret static-head and friction-loss system curves for pump selection.

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NPSHa versus NPSHr with a Worked Example

A practical calculation and review method for suction-system adequacy and cavitation margin.

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Pump Cavitation Symptoms and Prevention

Recognize cavitation indicators and identify practical design and operating corrections.

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Minimum Continuous Stable Flow Explained

Understand minimum-flow limits, recirculation risks and protection philosophy.

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Pump Shutoff Head and Driver Checks

Review shutoff pressure, system design pressure, power and driver rating.

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Parallel and Series Pump Operation

Understand combined curves, load sharing and operating limitations.

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Pump Recirculation and Low-Flow Damage

Identify internal recirculation, heating, vibration and reliability risks.

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API 610 Datasheet Review Checklist

A structured EPC review checklist for centrifugal pump datasheets.

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Centrifugal Compressor Fundamentals

A beginner-friendly overview of head, pressure ratio, efficiency and operating maps.

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Compressor Maps and Surge Explained

Read compressor maps and understand surge, choke and control margins.

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Anti-Surge Control Philosophy

Understand recycle valves, control lines, response time and instrumentation.

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Polytropic Head in Simple Terms

Connect thermodynamics with practical compressor performance.

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Compressor Performance Test Review

Review test conditions, corrections, tolerances and acceptance criteria.

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Dry Gas Seal Basics

Understand seal stages, separation gas, leakage monitoring and reliability.

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Compressor Fouling and Performance Loss

Recognize symptoms and evaluate cleaning and operating actions.

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Reciprocating versus Centrifugal Compressors

Compare selection ranges, turndown, pulsation and maintenance needs.

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Compressor Vibration Troubleshooting

A structured workflow from symptoms to likely mechanical and process causes.

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API 617 Vendor Review Checklist

Key technical checks for centrifugal and axial compressor packages.

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Steam Turbine Fundamentals

Understand stages, governing, steam conditions and mechanical arrangements.

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Turbine Overspeed Protection

Review trip philosophy, testing and independent protection layers.

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Mechanical Seal Failure Modes

Identify common leakage, face damage, heat and contamination mechanisms.

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Seal Flush Plans Explained

Understand common API seal plans and their applications.

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API 682 Plan Selection Guide

A practical approach to selecting mechanical seal arrangements and piping plans.

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Bearing Failure Pattern Guide

Connect visible damage patterns with lubrication, loading and installation causes.

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Shaft Alignment Best Practices

Practical alignment tolerances, thermal growth and verification steps.

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Soft Foot Diagnosis

Identify parallel, angular and induced soft foot before machine alignment.

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Rotor Balancing Fundamentals

Understand unbalance, correction planes and acceptance criteria.

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Vibration Spectrum Reading for Beginners

Learn frequency, amplitude, harmonics and practical pattern recognition.

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1X, 2X and Harmonics Explained

Relate common spectral components to likely machinery conditions.

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Resonance Identification in Rotating Equipment

Recognize resonance and plan confirmation testing and corrective actions.

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Reliability-Centered Maintenance Basics

Apply functional-failure and consequence logic to maintenance decisions.

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Preventive versus Predictive Maintenance

Select the right maintenance strategy using failure behavior and criticality.

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Criticality Ranking for Rotating Assets

Build a practical risk-based ranking for equipment maintenance priorities.

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Root Cause Analysis for Equipment Failures

Use evidence, timelines and causal logic to prevent recurrence.

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Bad Actor Management Program

Create a repeatable process for identifying and eliminating chronic losses.

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Lubrication Contamination Control

Control particles, water and cross-contamination in machinery lubricants.

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Condition Monitoring Program Roadmap

Define assets, technologies, routes, alarm limits and response workflows.

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Maintenance KPI Selection

Use availability, MTBF, MTTR and work-management indicators correctly.

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API 610 versus ISO 5199

Compare scope, construction philosophy and typical applications.

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API 670 Machinery Protection Overview

Understand sensors, voting, alarms, trips and protection-system architecture.

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How to Review a Vendor Deviation List

A traceable method for identifying technical and commercial impact.

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Technical Bid Evaluation Step by Step

Structure requirements, deviations, clarifications and recommendations.

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Mechanical Datasheet Quality Checklist

Improve data completeness, consistency and interdisciplinary alignment.

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How EPC Engineers Manage Interfaces

Coordinate process, piping, civil, electrical, instrumentation and vendors.

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Rotating Equipment Interview Questions

Prepare technical and scenario-based answers for engineering interviews.

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How to Write an Engineering Resume

Present scope, technical depth and measurable project contribution.

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LinkedIn Optimization for Mechanical Engineers

Improve headline, summary, keywords and project positioning.

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First 90 Days as a Rotating Equipment Engineer

A practical learning and execution plan for a new role.

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