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Hydrogen Piston Compressors

Hydrogen Hydraulic Compressor - DDE Series

SAFE S.p.A.
Hydrogen Hydraulic Compressor - DDE Series

  • Compact opposite-cylinder architecture
  • Efficient unloading of trailers
  • Continuous operation in severe environments

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Description Vendor

Hydrogen Hydraulic Compressor - DDE Series 

  • Hydraulic compressors designed for the compression of hydrogen, biomethane, and natural gas.
  • The DDE Series uses a hydraulic transmission system with one hydraulic cylinder and two gas cylinders.
  • A steel rod connects the oil piston with two gas pistons, allowing the pressure of the oil piston to move the connecting rod and compress gas.
  • The compressor design has only one moving part: the piston rod to which the oil and gas pistons are fixed.
  • Low-speed operation enables a high service life of up to 20 years.
  • Wear parts are self-lubricating PTFE-based components with an average lifetime of up to 5,000 operating hours.
  • The gas and hydraulic sections are separated by a long distance piece (LDP) and two sets of seals to prevent oil contamination during gas compression.
  • The DDE Series is suitable for compression phases from hydrogen generators and grid injection applications.
  • The low speed and wide pressure range contribute to a low Total Cost of Ownership (TCO).

Key features

  • Hydrogen, biomethane, and natural gas compression
  • Hydraulic transmission technology
  • Maximum discharge pressure: 280 bar (4,060 psi)
  • Maximum flow rate: 2,000 Ncm³/h
  • Maximum power: 75 kW (100 HP)
  • Low-speed operation: 80 rpm maximum
  • Self-lubricating PTFE-based wear parts
  • Maintenance interval: 5,000 operating hours
  • Single or twin configuration available
  • Certifications: EC/EAC and US

Applications

  • Daughter stations
  • Virtual Pipeline Power Systems

Contact us

  • Interetsted? Please contact Safe SpA by filling in the RFQ or Inquiry form.
SAFE S.p.A.

SAFE S.p.A. is an Italian engineering and manufacturing company specializing in compression and gas-distribution systems, with its headquarters and production activities located in the Bologna area. The company serves natural gas, biomethane, hydrogen and industrial gas applications and combines compressor technology with mechanical packaging, storage, controls, safety systems and station-level integration. Hydrogen is one of SAFE’s established application areas: the company develops compressors for pure hydrogen, packaged refueling stations, high-pressure storage and mobile solutions that can be integrated downstream of electrolysis or other hydrogen sources. SAFE also offers virtual-pipeline configurations in which hydrogen is compressed at a mother station, transported in high-pressure containers and unloaded or conditioned at a daughter station, as well as grid-injection and on-site generation/refueling concepts. Its role therefore extends beyond the compressor itself into the engineering of complete hydrogen handling installations. Within the hydrogen value chain, SAFE is positioned between production and end use, enabling compression, storage, logistics and dispensing for mobility, industrial and distributed-energy applications.

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