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DW-3.8/ (4~6)-14 Nitrogen Compressor

The DW-3.8/(4~6) -14 nitrogen compressor is designed with a symmetrical balanced structure and equipped with an oil-free lubrication system, specifically designed for nitrogen compression applications. The processing capacity of this compressor model is 3.8m ³/min, with an intake pressure range of 4-6 bar and an exhaust pressure of 14 bar. It is widely used for the storage and transportation of nitrogen gas.
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Product Description: DW-3.8/(4~6)–14 Hydrogen Compressor

The DW-3.8/(4~6)–14 Hydrogen Compressor is an advanced, oil‑free reciprocating unit engineered for the high‑purity compression and transport of hydrogen in industrial, energy, and research settings. Delivering a nominal flow of 3.8 m³/min, it accepts inlet pressures between 4 kg and 6 kg, and boosts discharge pressure up to 14 kg. This configuration makes it perfectly suited for fuel‑cell refueling stations, hydrogen blending systems, and laboratory gas supply networks.

Constructed around a precision‑machined crankcase and low‑friction piston assembly, the compressor ensures minimal internal leakage and zero oil contamination—critical for maintaining hydrogen purity. Its water‑cooled cylinder block and intercooler optimize thermal stability during continuous operation. Integrated safety valves, real‑time pressure monitoring, and automatic shutdown protocols provide robust protection against overpressure and temperature excursions.

The DW‑3.8 model’s modular skid design allows rapid integration into existing hydrogen infrastructure. Vibration dampers and acoustic enclosures reduce operational noise to below 75 dB(A), improving on‑site working conditions. Compliance with ISO 14687 (hydrogen purity), ISO 9001, and PED directives underscores its reliability and global applicability.

Key Features:

  • Flow rate: 3.8 m³/min

  • Suction pressure: 4–6 kg

  • Discharge pressure: up to 14 kg

  • Oil‑free, water‑cooled, reciprocating design

  • High‑purity hydrogen delivery (meets ISO 14687)

  • Skid‑mounted for quick installation

  • Low noise and vibration levels


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