PDC is the leading equipment packaging and integration provider for hydrogen refueling stations.
We have installed more than 90 hydrogen fueling stations to date, representing 85% of the global
total. Our hydrogen compressor is used for refueling cars, buses and material handling equipment.
General Specifications for Hydrogen Fuel Cell Compressors
PDC diaphragm compressor as part of Shanghai's first hydrogen fuel cell refueling station for vehicles and buses. A joint collaboration between Tongji University, Shell and Linde (formerly BOC)
A hydrogen refueling station by Air Liquide, Canada in stalled in Whistler, British Colombia featuring a PDC diaphragm compressor used during the 2010 Winter Olympics for bus fills.
PDC supplied diaphragm compressor as part of Linde's mobile refueling station capable of 40/kg/day.
PDC packaged portable hydrogen refueling station for Air Liquide USA for demonstration and temporary installations.
PDC diaphragm compressor supplied to the Yeager hydrogen refuel station for vehicle fills.
PDC designs basic to fully instrumented compression systems in accordance with customer specifications.
Compressors range in size from 1 hp to 25 hp. Discharge pressures up to 60,000 psi (4,100 bar).
- Design pressures to over 60,000 Psi (4,100 bar)
- Gas flow rates over 1250 SCFM (2000 Nm3/hr)
- 1 to 250 hp for wide range of flow rates
- Self-clamping boot strap design for pressures over 10,000 psig (690 bar)
- Corrosion resistant materials for compatibility with various process applications (300 Series SS, Inconel®, Monel®, etc.)
- Ductile metals seals to meet low leak rate specifications (10-8 cc/sec Helium)
- Electric or air driven
Basic Compressors
The basic single-stage diaphragm compressor includes a static conductive, oil resistant V-belt drive system,
non-sparking OSHA belt guard, electric motor with adjustable rail, welded steel framework, diaphragm failure
leak detection system, after-cooler and inlet filter.
Two-stage compressor includes the above as well as an inter-stage gauge, inter-stage accumulator,
inter-stage relief valve, inter-cooler and after-cooler.
Instrumentation and Controls
A diaphragm compressor complete with instrumentation and controls includes the basic compressor, noted above,
as well as a control panel, transformers, relays, motor starter, start-stop button, suction pressure switch,
discharge safety pressure switches (low-Hi) and (Hi-Hi), suction and discharge pressure gauges, water flow
indicator and switch, temperature indicators, auto-unloading, status pilot lights or annunciator panels, etc.
PDC can supply a hard-wired relay logic control or fully programmed PLC system.
PDC diaphragm compressors can be provided with complete instrumentation for automatic or
remote operation. Every system is supplied completely piped, wired, and fully tested before shipment.
The following table is meant to provide general information of the various models
available through PDC and sizes. However, to determine the exact model suitable for your needs,
we ask that you complete the request for quotation form and send it to us and we will revert
back to you with the correct model and price.
- Electrical NFPA-70 National Electric Code, Class 1, Division II, Group B
- Piping ANSI B31.3 Process Piping
- Mechanical ASME Section VIII, Division 1
- CE Compliant to all Applicable European Directives
- Japanese KHK High Pressure Gas Law Reuirements
- CSA for Canadian Standards Compliance