Pneumatics and Medical Gases — Repair Fundamentals
Valves, regulators, sensors and leaks: the trade shared by ventilators, anaesthesia machines and every gas-driven device
Part of the program: Ventilator Service Engineer — full program (40 h) →
Part of the program: Anaesthesia Workstation Service Engineer — full program (40 h) →
Ventilators, anaesthesia workstations, suction units, concentrators, dental chairs and laboratory analysers are built from the same pneumatic parts: regulators, valves, sensors, seals and the gas supply that feeds them. This course teaches the trade they share - how each part works, how it fails, how to test it on the bench, how to find a leak by method rather than luck, and how to repair and prove the repair without creating an oxygen hazard.
Most 'electronic' faults in gas-driven equipment are a leak, a wet sensor or a valve with dirt on its seat.
- Engineers replace boards and modules for faults that are really a sagging supply, water in a sense line or a creeping regulator.
- Leak tests fail and the search takes hours because nobody measures the leak or isolates the system section by section.
- Oxygen paths are opened with the wrong tools, the wrong O-rings and the wrong grease, and returned without independent verification.
After the course you can
Curriculum
Convert between the pressure and flow units found on medical equipment, apply the few gas laws that matter at the bench, and trace a pneumatic diagram drawn with ISO 1219-style symbols on a real machine.free
22 min02Medical gas supply: pipelines, outlets, hoses, cylinders and oxygen safety
Identify each element between the gas source and the device inlet, explain how gas-specific connection systems prevent wrong-gas connection, prove or exclude a supply problem by measurement, and handle oxygen and high-pressure gas without creating a fire or injury risk.22 min03Regulators and pressure reduction
Explain how a diaphragm pressure regulator holds its outlet pressure, recognise creep, droop and supply-pressure effect, and test a regulator on the bench or in the device for lock-up, creep, flow performance, relief and external leakage.22 min04Valves: solenoid, proportional, check and relief
Recognise the valve types used in medical gas devices, explain how each one fails, and test a solenoid, proportional, check or relief valve on the bench with a regulated source, a calibrated gauge, a flow meter and a current-limited power supply.24 min05Flow and pressure sensors: how they measure, why they drift
Explain how differential-pressure, variable-orifice, hot-wire and pressure sensors work, distinguish zero error from span error, find the usual causes of drift (water, contamination, temperature, ageing), and decide between cleaning, recalibration and replacement.24 min06Oxygen sensors and gas analysis
Explain how galvanic and paramagnetic oxygen sensors work and fail, calibrate and check them correctly, and find faults in side-stream sampling systems: water traps, sample lines, pumps, leaks and calibration gas.23 min07Leak finding: leak-down, soap, ultrasound and isolation by sections
Quantify a leak with a pressure-decay or flow-to-hold test, account for compliance and temperature, and locate it quickly by isolating the system section by section and using leak solution or an ultrasonic detector.25 min08Repair practice: clean work, seals, lubricants, torque, verification and records
Open, repair and reassemble a pneumatic assembly without introducing contamination, leaks or oxygen hazards, then prove the repair with a leak test, the manufacturer's calibrations and checkout, and an independent gas-flow analyser, and record it so that it stands up to an audit.25 min—Exam
30 · 45 min · 75 %
The certificate
Pass the exam and get a certificate of course completion with your name, hours and score. Every certificate has a unique number and a public verification page, so an employer or a customer can check it in one click. It confirms completion of the course; it is not an educational document (diploma) and not a manufacturer authorisation.
Who it is for
Who it is for
- Field and workshop engineers who service ventilators, anaesthesia machines and other gas-driven devices
- Hospital biomedical / clinical engineering teams
- Engineers moving from electronics or industrial pneumatics into medical equipment
Who teaches
Written by a service engineer working with medical equipment since 2014, including 6.5 years at GE Healthcare and service supervision at Mindray, together with the engineers of Service Engineer.
FAQ
Is this manufacturer training?
No. It is independent, vendor-neutral training in the pneumatic trade shared by many devices. It does not replace the manufacturer's service procedures, does not grant authorisation or access to service software, and every repair must still be followed by the manufacturer's calibrations, checkout and an independent performance verification.
Which devices does it cover?
The principles shared by ventilators, anaesthesia workstations, suction regulators, oxygen concentrators and CPAP devices, dental units and pneumatic parts of laboratory equipment. Device-specific courses and model pages are available separately.
Where does it sit in the course ladder?
It is a Repair fundamentals course. It works well before or alongside the ventilator and anaesthesia Level 1 courses, and before component-level repair of sensors.
What does the certificate say?
Your name, the course, the hours, the date and your exam score, with a unique number and a public verification page.
What do I need?
Basic technical knowledge. Experience with any gas-driven equipment helps but is not required.
Can my company buy seats for a team?
Yes: five seats and a progress overview for the manager.
Languages?
English and Russian.