A professional who tests, repairs, and adjusts all types of industrial gas equipment, including control mechanisms, such as thermostats, high-temperature-limit controls, solenoid valves, safety pilots, and various other safety controls actuated by bimetallic expansion, fluid expansion, or thermocouple electric energy.

• May advise customers on proper installation of equipment.
• May install or remove large industrial meters, regulators, and related equipment.
• May read meters.