CNG Daughter Station Equipment

Qingdao Lenado Intelligent Equipment Co., Ltd. is one of the most reliable manufacturers and suppliers of cng daughter station equipment in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to wholesale bulk customized cng daughter station equipment from our factory.

A complete set of CNG daughter station compressor equipment refers to an integrated system that begins with gas intake-sourced from a tube trailer or a low-pressure pipeline network-and proceeds through stages of compression, cooling, and priority sequencing control, ultimately delivering the gas to a dispenser for vehicle refueling. Our integrated solution comprises a horizontal reciprocating compressor, a priority sequencing control panel, an explosion-proof motor, an aftercooler, and a fully automatic PLC control cabinet. All components are mounted on a single steel skid base; on-site commissioning requires only the connection of the gas inlet line, power supply, and dispenser signal cables to bring the system online.

The entire operational workflow is divided into four distinct stages:

Step 1: Gas Intake – Natural gas (at a pressure of 3–20 MPa) from a tube trailer or low-pressure pipeline network passes through an intake filter to remove impurities before entering the first-stage cylinder of the compressor.

Step 2: Compression – Four sets of cylinders sequentially increase the gas pressure in a step-by-step manner. Intercoolers reduce the temperature of the high-temperature gas generated after each compression stage to near-ambient levels, thereby minimizing power consumption and protecting the cylinder components.

Step 3: Priority Control – The pressurized, high-pressure gas enters the priority sequencing control panel. This panel automatically monitors the pressure levels within the station's gas storage cylinder banks (typically categorized into high, medium, and low-pressure groups) and prioritizes filling the bank with the lowest pressure, ensuring that gas is always available at the dispenser.

Step 4: Refueling – The gas is metered by the dispenser and injected into the vehicle's gas cylinders. The PLC continuously monitors critical parameters-such as compressor discharge temperature, vibration levels, and oil pressure-and will automatically shut down the system while displaying a fault code in the event of any anomaly.

The entire process is executed automatically by the PLC; your personnel need only set the upper and lower limits for the start and stop pressures on the control panel, leaving the rest to be handled autonomously by the equipment.

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If you have read this far, you have likely already compared the specification sheets of three or four different suppliers, only to find that the numerical values ​​are all quite similar. Your true dilemma is likely this: "Which one of them is telling the truth?"

We do not ask you to place your trust in glossy, professionally printed brochures. We focus on doing just one thing: providing you with verifiable information *before* you decide to request a formal quote. You can choose to do any one of the following three things:

Send us your operating parameters (average daily gas volume, minimum inlet pressure, and local elevation) → We will provide you with a projected output table-complete with a margin of error-along with an energy consumption estimate.

Request a copy of our maintenance manual's table of contents → See for yourself if our claim that "one person can handle the repairs" truly holds up.

Ask to view our spare parts list and pricing → We provide a detailed breakdown of consumables and long-life components, listing the specific price for each-allowing you to see the costs upfront without needing to submit a formal inquiry.

None of these steps require you to make a commitment to purchase. All we ask is that you verify the facts for yourself.

This is what sets us apart from other manufacturers: we do not attempt to convince you that "we are the best," but rather to assure you that "you do not have to make a decision blindly." And that-the ability to make an informed choice-is precisely what you are truly looking for.

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