Superior Piston Design, Visual Piston Indicator, Compression Spring, Non-Pressurized Actuator Housing, Fail-Safe Close Design, Corrosion-Resistant Materials, Ease of Maintenance, Permanent Drift Setting, Drain Plugs Flush Housing are just a few of the characteristics of the MH74 Series. Actuators are electrically powered devices that allow pipeline operators to operate valves. Electric, air (pneumatic), or flow power (hydraulic), which is, in our instance, fuel or gas, can all be used. There are two types of temporary and rotating actuators. Gas-over-oil actuators move the mechanics of the actuator by suspending the high pressure gas in the pipeline with a hydraulic fluid. Double-acting gas-over-oil actuators are the only ones that can be used. A power source provides electricity to electric actuators like a battery. Precision control of product flow through valves is critical in the oil, gas, and petrochemical industries, and the valve actuator is responsible for this modulation.