Lesson 1Pump types (gear, vane, piston): characteristics, efficiencies, and selection criteria for 5–25 l/min and up to 160 barThis lesson compares gear, vane, and piston pumps for moderate flows, discussing efficiencies, noise levels, suction limits, and selecting displacement and speed for 5–25 l/min at up to 160 bar with good durability.
External vs internal gear pump featuresVane pump efficiency and noise behaviorAxial piston pumps and control optionsSizing displacement for flow and speedNPSH, suction limits, and inlet conditionsLesson 2Seals, fittings, and connectors: selection for mineral oil, pressure ratings, and leak minimizationThis lesson focuses on seals, fittings, and connectors for mineral oil setups, explaining materials, pressure limits, thread types, and assembly techniques to reduce leaks, drips, and damage during use.
Seal materials for mineral oil compatibilityStatic vs dynamic sealing arrangementsThread types: BSPP, NPT, and metricO-ring groove design and surface finishTorque, assembly, and leak testingLesson 3Directional control and flow control valves: solenoid vs manual valves, proportional considerations, and spool choicesThis lesson covers directional and flow control valves, comparing manual, solenoid, and proportional types, including spool symbols, flow capacities, pressure drops, and selecting response and control for circuits.
Manual vs solenoid operated valve choicesSpool symbols, center options, and leakageProportional valves and control electronicsFlow control valves: fixed vs adjustableValve sizing for flow, pressure, and dutyLesson 4Reservoir design: sizing rules, breathers, sight gauges, baffles, and settling time calculationThis lesson addresses reservoir sizing, design, and accessories, covering volume guidelines, baffle arrangements, settling periods, and specifying breathers, gauges, and clean-out options for cooling and maintenance.
Tank volume rules and return residence timeBaffle layout for de-aeration and coolingBreathers, filters, and moisture controlSight gauges, level switches, and alarmsDrain ports, clean-out covers, and slopesLesson 5Motor selection: matching electric motor power, starting torque, and service factor to pump loadThis lesson connects pump needs to electric motor choices, teaching power calculations, starting torque, service factors, duty types, and start methods to prevent trips and overheating.
Calculating hydraulic power and motor kWStarting torque vs pump breakaway torqueService factor and duty cycle selectionStar-delta and soft starter implicationsMotor enclosure, cooling, and environmentLesson 6Pressure control elements: relief valves, sequence valves, pressure reducing valves — selection and setpoint approachesThis lesson explains pressure controls like relief, sequence, and reducing valves, covering designs, stability, sizing, and methods for setting and checking safe, consistent pressure levels.
Direct vs pilot operated relief valvesSetting main relief valves safelySequence valves for staged operationsPressure reducing valves and circuitsPressure override, stability, and chatterLesson 7Filtration strategy: return-line vs pressure-line vs tank suction filters; micron ratings and contamination codes (ISO 4406)This lesson compares return, pressure, and suction filters, explaining uses, micron choices, and ISO 4406 codes to achieve cleanliness and meet warranty standards.
Return-line vs pressure-line filter applicationsTank suction strainers and protection limitsMicron rating, beta ratio, and dirt holdingReading and applying ISO 4406 codesFilter sizing, pressure drop, and service lifeLesson 8Shut-off valves, non-return valves, and drain/check valves: types, materials, and placementThis lesson details shut-off, non-return, and drain/check valves, covering types, materials, leak traits, cracking pressures, and positions for safe isolation, backflow stop, and controlled draining.
Ball, gate, and needle shut-off valve usesCheck valve cracking pressure and sizingPilot-operated check valves for load holdingMaterial choices for corrosion and fluid typeDrain and bleed valves for safe maintenanceLesson 9Instrumentation: pressure gauges, temperature sensors, flow meters — selection and mounting pointsThis lesson covers choosing and placing pressure, temperature, and flow tools, including accuracy, damping, protection, and best spots for setup, fault-finding, and ongoing checks.
Pressure gauge types and accuracy classesGauge snubbers, isolators, and overpressure limitsTemperature sensor types and immersion rulesFlow meter technologies and selectionPermanent vs test-point instrumentation
