Testimonials

“HydraFLX Systems LLC has been a DLA (Defense Logistics Agency) registered consultant and defense contract actuary since 2001; specializing in innovative research and development of gaseous fuel technologies and early commercialization of hydrogen and fuel cells.

Under a Memorandum of Understanding between the United States Air Force and the State of Hawaii, HydraFLX was selected to stand up the National Demonstration Center for hydrogen and renewable technologies at Joint Base Pearl Harbor Hickam in Hawaii, to advance the use of hydrogen in military ground support and commercial applications, drive down the cost of safe, deployable infrastructure, and develop seamless integration with renewable energy. Three hydrogen technologies initially demonstrated at JBPHH are used in commercial markets today.

We have tested and demonstrated five gas compressors over ten years time at the research site. The two (2) PDC Machines hydrogen gas compressors have outperformed all competitors in our three main categories of analysis: electrical efficiency, through-put gas flow efficiency and cost. We are extremely pleased with PDC’s trouble-free operation and ease of maintenance. In four years time, we had but one minor issue with one of the units and found that PDC’s factory support is second to none. We were back up and running in no time. Their factory floor technical folks are first class.

HydraFLX cannot more highly recommend PDC Machines to anyone seeking high-quality, long-lasting equipment that is as durable as it is easy to operate. Their automation team obviously has abundant experience putting together custom machines and integrating them with different dispensers, high pressure storage and pressure management safety systems.”

– HydraFLX Systems LLC

 


 

“PDC Machines has been an integral supplier of diaphragm compressor systems and piping skids to Linde for more than a decade.

Their ability to tailor a packaged solution extends well beyond the robust compressor to include UL panel fabrication, navigating US and foreign electrical/mechanical code requirements, PLC control systems, and vessel code stamping. And with their extensive machine shop and two fabrication facilities, PDC Machines has the ability to tightly manage our project’s safety, budget, and schedule goals.

After commissioning, their exemplary customer service comes to the forefront with same day spare parts shipments and technical support, at any time of day.

PDC Machines is a solid top-tier supplier.”

– The Linde Group

 


 

“Airgas considers PDC Machines a Preferred Vendor for Compressors. They are listed on our National Resource Manual which covers all the Airgas Plant operations. PDC Machines has shown they are a very reliable vendor.

We have been using their compressors for transferring product from our tube trailers to cylinder in our Airgas plants for over 11 years. We have found their compressors to be very reliable which is critical to serving our customers in a timely manner.

Lastly but most important is the ability to provide good quality Customer Service which PDC Machines has always achieved for Airgas. Their machines arrive as promised, parts are prompt and their technical support is there when you need it.”

– Airgas, Inc.

(There are 12 Airgas locations across the United States using PDC Machines products)

 


 

“Oceaneering required a compressor that is capable of transferring breathing grade mixtures of helium and oxygen for use with its Saturation Diving Systems. Using the compressing in conjunction with a blender, the system can blend its own gas and help eliminate the need for large amounts of pre-mixed gas, which saves storage space and weight. This compressor is used every day while the system is in the Diving mode.

In 2005, Oceaneering purchased a compressor model PDC-4-600-2500 for this application.  Since we have had the compressor it has performed well with only regular scheduled maintenance. Based upon the performance of the first compressor, we have purchased an additional compressor PDC-4-800-3500 in 2011.

To-date, we are pleased with the performance of both compressors.  PDC Machines provided prompt technical support when their assistance was required and spare parts were sent to us within 48 hours.  Maintenance of these two compressors was very minimal which meant operating costs were low. 

Should there be another requirement for a compressor, we will not hesitate to contact PDC Machines again.”

– Oceaneering International

 


 

“FIBA Technologies, Inc. has been working with PDC Machines since the early 1980’s and have been using their compressors in conjunction with our tube trailers for transfilling all types of gases including helium. Throughout the years we have acquired more than 50 compressors covering a wide range of models to meet our customers varying flow rates.

Throughout these 30 years plus, we have found PDC Machines’ compressors to be reliable, with on time quick delivery. Shipments of spare parts were prompt and technical support has always been available when needed. We still continue to conduct business with PDC Machines.”

– FIBA Technologies, Inc.

 


 

“We purchased a PDC-4-2500 compressor from PDC Machines in 2006, and we have put 2000 hours of usage in it with minimal maintenance (I.e filters, oil changes). We replaced a Hamworthy Compressor which needed service every 100-200 hours; during one-year span we spent $ 30,000 on maintenance. The other thing I would like to point out is the customer service aspect of PDC Machines, when we have questions, we wait no more than 24 hours to get our answers with most answered immediately. In 35 years in the compressed gas business I have never felt as satisfied as I am with my PDC Machines unit.”

– Harris Industrial Gases

 


 

“Air Products and Chemicals, Inc. has been working with PDC Machines since 1998. PDC Machines has been an important compression equipment supplier on numerous hydrogen fueling stations for our Hydrogen Energy Systems group. During this period, we have acquired almost 100 compressors from PDC Machines.

We have found PDC Machines to be responsive to our needs. Technical support has been excellent for our projects and is quickly available in emergency situations. Delivery of PDC Machines supplied compression equipment has been on-time and PDC Machines has performed well when we have needed a quick turnaround on orders. Shipments of spare parts have been prompt and aftermarket support is very helpful. PDC Machines has been a reliable supplier and they stand behind their products.

We look forward to continuing our business with PDC Machines.”

– Air Products and Chemicals, Inc.

 


 

“PDC Machines have provided us 2 unit of hydrogen Diaphragm Compressor model number: PDC-13-500-500, that are currently operating continuously for 18,000 hrs which is equivalent almost two years. The machine has been running 24 hours/day and 365 days/year to recycle the hydrogen to our hydrogenation unit.

As far as our maintenance concern, we only are having trouble during commissioning since a lot of dust/rut passing through the pipe. Once it is resolve through proper filtering, the compressor runs smoothly without having any problem. The latest maintenance activity was replacing the drive belt due to belt worn out in June 2003. As for the diaphragm, we have not replace the diaphragms since year 2001.”

– Petronas Ammonia Sdn Bhd.

 


 

“We have installed the diaphragm compressor, model number: PDC-2-6000 since 1999 to supply the hydrogen gas to our pilot plant for hydro-treating and hydrocracking processes. The compressor has been supplying 240 bar of hydrogen gas 24 hours per day without much of problem.

So far, this compressor does not need much of maintenance except changing and topping up the hydraulic oil. Once a while, the drive belt will become loose and require to be tightened. The only concern that we have is the huge consumption of water as cooling medium and this has increased our operating cost.

Overall, we are quite satisfied with this hydrogen compressor.”

– Singapore Catalyst Technology Center

 


 

“Air Liquide Brazil has purchased and installed a compressor from PDC Machines model number PDC-13-300-3750 for filling tube trailers with helium gas back in 2010. The flow rate was 97 Nm3/hr at 250 bara discharge pressure.

During the installation we needed technical support from PDC Machines. They responded promptly and sent an experienced engineer to assist us. The compressor has been running smoothly since then. It has been running now for 1400 hours without any issues.

PDC Machines has always been prompt in their support when needed. As a result we placed an order for another helium compressor. We expect it to be shipped end of August and on time.”

– Air Liquide Brazil

 


 

“We are using couple PDC compressors and quite satisfied with the performance and after sales services.”

– Refrigeration and Oxygen Company Ltd, Kuwait