Can CNG Daughter Station Compressors Achieve “200 bar / 250 bar Dual-Pressure Operation”?

Short answer: No.But before you click away — the real value of Huayan’s CNG daughter station lies precisely in that “no.”

Let’s Be Clear: No “Dual Pressure,” But Full-Scene AdaptabilityLet’s be straight: Huayan’s CNG daughter station compressor does not support simultaneous standby or one-click switching between 200 bar and 250 bar. Its logic is simpler and far more pragmatic: Whatever pressure you need, it delivers.200 bar? Yes. 250 bar? Yes. 220 bar, 235 bar, 248 bar… Any value below the 25MPa (250 bar) ceiling. You name it, the PLC control system executes it instantly. This isn’t “dual-pressure.” This is stepless, continuous adjustment.Equipment touting “dual-pressure” essentially has two fixed setpoints for two specific scenarios. Huayan’s philosophy is: Your operational scenarios shouldn’t be confined by two numbers.

Pressure is a Means, Not the Goal

What truly reassures clients isn’t how many pressure values a machine can output. It’s: Is refueling fast? Is station setup cost-effective? Are vehicles filled completely?Huayan’s daughter station accepts a wide inlet pressure range of 3-20MPa — whether the tube trailer has high residual pressure or low, it adapts. Once the compressor starts, gas is stabilized and finely tuned by the Prms System (Pressure Regulating & Metering System) , precisely measured by high-accuracy Gas Metering Station-grade modules, and finally delivered to the dispenser at your set pressure.Throughout this process, the high-pressure natural gas from the CNG Container flows smoothly and accurately into the tanks of buses, trucks, and logistics vehicles. This isn’t “dual-pressure.” This is every refueling, perfectly executed.

What Can a Mobile Gas Station Actually Do?

To fit an entire Gas Station into a 40-foot container, what needs to be sacrificed?Huayan’s answer: Nothing.The compressor stays. The Prms stays. The metering system stays. The dispenser stays. Even the generator set stays — where the grid can’t reach, it powers itself. Unloading, boosting, storage, pressure regulation, metering, dispensing — the entire process is enclosed within the container. Upon arrival, connect the tube trailer, and the station is operational within two hours.

Call this a “daughter station”? It’s a city gas artery on wheels.

Customization Isn’t Optional. It’s Essential.After 40 years in the compressor business, Huayan’s deepest insight is this: No two clients’ needs are identical.That’s why you’ll never find a “standard configuration” section in their product catalogs. You’ll find only this line:“All products can be customized as required.”Flow rate from 500 to 3000 Nm³/h — you choose based on your fleet size.Inlet pressure 3-20MPa — you decide based on your gas source.
Outlet pressure continuously adjustable up to 25MPa — you set it based on your cylinder standards.Power unit: electric motor or generator set — you pick based on site conditions.

No need to compromise between an “ideal solution” and “off-the-shelf stock.” You provide your operating parameters. They provide the drawings. You confirm the specifications. They schedule production.

Finally, Back to That Question“Can it achieve 200/250 bar dual-pressure operation?”No.
But if you need 200 bar today, and next year your business expands with a fleet requiring 250 bar — you don’t need new equipment. You don’t need to reset parameters. You don’t even need an engineer on-site. Just change one number on the touchscreen, and it adapts to your business growth.

Isn’t that far more practical than “dual-pressure”?