Safe, code-compliant hydrogen storage for Arizona operations

Serving businesses across Arizona, Bunney’s Inc. delivers turnkey hydrogen tank installation for production sites, fueling stations, R&D labs, and power/industrial facilities. We handle siting, engineering, foundations, piping, controls, commissioning, and documentation—so your system starts up safely and runs efficiently in Arizona’s heat, dust, and monsoon winds.

New to Bunney’s? Learn who we are and explore our capabilities.

Why teams choose Bunney’s Inc.

  • End-to-end delivery. Feasibility, stamped drawings, permits, installation, testing, and handover.

  • Code alignment. Designs reference applicable standards (e.g., NFPA 2 & NFPA 55, ASME Section VIII, CGA guidance, and ISO 19880-1 for fueling).

  • Arizona-ready. Wind-load foundations, high-ambient vaporizer sizing, and dust-tight electrical practices.

  • Clear documentation. P&IDs, pressure test records, relief sizing basis, and operator procedures.

Call Us for a Quote

(623) 875-1201

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    What we install

    • Storage types:

      • Gaseous H₂ tube bundles/composite cylinders (medium/high pressure)

      • Cryogenic liquid H₂ tanks with vaporizers and vacuum-jacketed lines

    • Process & safety equipment: pressure regulation skids, PRVs/rupture disks, slam-shut valves, excess-flow valves, vent stacks, flame arrestors (as specified), gas detection, emergency stops, and fire protection interfaces

    • Electrical & controls: hazardous-area wiring where required, leak-alarm panels, interlocks, and PLC/BMS integration

    • Civil & structural: pads/caissons, crash protection, access/egress, bollards, wind-rated supports, and containment where applicable

    Our installation workflow

    1. Site assessment & siting study – setbacks, ventilation, prevailing winds, traffic, and utility routes.

    2. Engineering & permitting – load calcs, foundation design, P&IDs, vent routing, electrical classification, and AHJ submittals.

    3. Foundations & utilities – pads/anchors, grounding/bonding, power, controls, and vent stack steel.

    4. Tank set & tie-ins – rigging, alignment, certified fittings, torque logs, and proper gasket/cleanliness controls for hydrogen service.

    5. Pressure/leak testing – hydro or pneumatic per spec, instrument calibration, and functional checks.

    6. Commissioning & training – start-up, alarm setpoints, E-stop verification, and operator handoff.

    Siting & safety essentials

    • Ventilation & dispersion. Place tanks in well-ventilated areas; route vents above rooflines and away from intakes.

    • Ignition control. Maintain separation from electrical sources not rated for the area; bond/ground to mitigate static.

    • Setbacks & access. Respect code setbacks; provide 360° service and emergency access.

    • Detection & interlocks. Install H₂ sensors where accumulation is possible and tie to ventilation/ESD.

    • Relief & vent sizing. Size PRVs and vent stacks for credible scenarios (fire case, blocked-in heat, vacuum).

    Ready to plan your project? Get a site walk and budgetary estimate from our paving team.

    Built for Arizona conditions

    • Heat management. Select components and drivers rated for high ambients; size vaporizers for summer loads.

    • Wind & dust. Engineer foundations and supports to current wind maps; specify sealed enclosures and filtration.

    • Maintainability. Clearances for crane service, safe hose handling, and streamlined swap-outs for tube trailers.

    Operations & maintenance support

    • Routine checks: valve function, PRV dates, sensor calibration, insulation/vacuum integrity (LH₂), and leak surveys.

    • Integrity testing: periodic NDE/pressure checks per owner program and manufacturer guidance.

    • Training & SOPs: start-up/shutdown, hot-work controls, and emergency response coordination with local fire authorities.

    • Upgrades: telemetry, advanced controls, and LED/beaconed safety signage for public sites.

    When to upgrade or expand

    • Capacity shortfalls or frequent cylinder change-outs

    • Repeated nuisance trips from undersized venting or controls

    • New loads (electrolyzers, fuel cells, test bays) or a shift from GH₂ to LH₂ supply

    FAQs

    What codes apply to hydrogen tank installations?
    Most projects reference NFPA 2 (Hydrogen Technologies Code) and NFPA 55 for compressed gases, ASME Section VIII for pressure vessels, CGA practices for storage/handling, and ISO 19880-1 for fueling stations. Your AHJ may add local amendments.

    Do you install both gaseous and liquid hydrogen systems?
    Yes. We install tube bundles/composite cylinders (pressurized) and cryogenic LH₂ tanks with vaporizers and vacuum-jacketed piping, including regulation, detection, and controls.

    How long does installation take?
    Schedule depends on scope—engineering and permit approval, equipment lead times, and site complexity. We confirm a project timeline after the site walk and submittal review.

    What setbacks are typical?
    Setbacks vary by tank type, capacity, and occupancy. We perform a code-based siting analysis and coordinate with the AHJ to finalize distances.

    Can you integrate with my existing control system?
    Yes. We provide dry contacts or networked I/O to tie alarms, E-stops, and status points into your BMS/PLC or fueling controller.

    Who maintains the PRVs and detection system?
    We can include PRV recertification intervals and gas-detector calibration in a maintenance plan or coordinate with your existing service providers.

    Do you support permitting and fire-department reviews?
    Absolutely. We prepare drawings, photometrics for vent stacks where requested, cut sheets, and narratives for building and fire review.

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