Our highly skilled engineering staff has 40 plus years of experience in designing and fabricating cryogenic equipment, pressure vessels, and vacuum insulated equipment.  We pride ourselves on our ability to collaborate closely with the customer. We are committed to providing the best products in strict accordance with the specifications and Codes at the lowest possible cost.

Design Codes and Standards:

All equipment provided by H&H Cryogenic Systems will be designed and supplied in accordance with industry standards and specifications.

• Materials of Construction
  • ASTM – American Society for Testing and Materials Standards
  • ASME Section II – Material Specifications Process Vessels and Heat Exchangers
  • ASME Section VIII, Division 1 – Boiler and Pressure Vessel Code
  • ASME Section V – Non-Destructive Examination
  • ASME Section IX – Welding and Brazing Qualifications
• Outer Jacket
  • CGA H-3 – Standard for Cryogenic Hydrogen Storage
• Piping Fabrication
  • ASME B31.3 – Process Piping
  • ASME B31.12 – Hydrogen Piping and Pipelines
  • ASME B16 (Entire Group) – Pipe Fitting Details Instrumentation and Electrical
  • ISA – Instrument Society of America
  • NEC – National Electrical Code
  • NFPA – National Fire Protection Association
  • Electrical equipment shall be provided in accordance with the requirement for a Class I, Group B, Division 2 hazardous area.
  • All electrical enclosures will be NEMA 4 or 4X as appropriate.