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Modern Piping Inc. has led the mechanical contracting industry for over 75 years, providing superior commercial and industrial plumbing, pipefitting, code welding, and HVAC/R services. We’re a proud affiliate of Modern Companies Inc., Modern Sheet Metal Inc., Modern Control Services Inc., and Modern Compressed Air LLC, offering our customers a one-stop shop for mechanical contracting solutions. We have built our reputation on integrity and hard work, and we stand behind our products and services with pride. Explore this page to learn more about our capabilities and expertise. 

code welding


We hold welding to the highest standard, both automated and manual.  We respect and understand that poorly constructed welds on high-pressure pipes can fail, causing potentially catastrophic consequences.  You won’t find many contractors with the experience of Modern Piping Inc.


We adhere to the quality control codes established by the American Society of Mechanical Engineers (ASME) to ensure precise and reliable results. Our dedication to quality is supported by passing the necessary ASME tests to earn three stamps of approval for different methods of coded welding: R, PP, and U.

R Samp.png

The R stamp enables Modern to weld boilers, pressure vessels, and other pressurized items.


The PP stamp enables Modern to weld, fit, and install pipes onto pressure vehicles.


The U stamp enables Modern to manufacture unfired pressure vessels.


Modern Piping has manufactured and serviced hygienic piping systems since 1987. Our clients range from mid-sized chemical companies to large bio-pharmaceutical corporations.  


Modern Piping possesses one of the largest inventories of automatic orbital welding equipment in Iowa and Minnesota. Here is a partial list of available equipment:

  • AMI Model 207A and 207HP programmable GTAW power supplies capable of welding tubing and thin wall pipe

  • AMI Model 8 and 9 Series double clamp fusion weld heads (9-500 to 9-7500) with tube/pipe O.D. diameter ranges from 0.093” to 7.500” and wall thicknesses from 0.01” to 0.16”

  • Wachs Cut-Off Saws

  • Wachs and Protem Facing Tools

  • Bacharach Purge Analyzers

  • Olympus 27MG Ultrasonic Thickness Gage

  • Mahr Federal Pocket Surf Profilometer

  • AMI Power Supply Cooling Units

Our orbital welding capabilities range from 3/8” all the way to 7-1/2” O.D. From 9-500 weld heads to the massive 9-7500 and all sizes in between, Modern Piping has state of the art equipment to make the highest quality orbital welds possible. 


Document Control

Our High Purity Division has worked closely with our customers to implement documentation controls, improving and expediting the Food and Drug Administration validation process. These controls dramatically increase the traceability of components included in a hygienic piping system. 


Our custom-designed databases have yielded response times for validation questions that were previously unattainable. The databases include links to the certifications measured during a BPE piping installation, including Purge Gas Certifications, Material Test Reports, and welder certification documentation. 

Quality Control

Quality Control at Modern Piping is extremely important, and the High Purity Division leads the way. Our dedicated QC staff includes Material Inspectors and Certified Weld Inspectors. 


Modern Piping retains the required instruments to meet ASME Bioprocessing Equipment (BPE) construction standards. Our QC staff maintains strict control over stock material waiting to be installed, such as measuring ovality and surface roughness. 


Modern Piping has invested in a fiberscope to allow  3rd parties and our own Certified Weld Inspectors to review weld quality. 

Quality Control

Quality Control at Modern Piping is extremely important to us and the High Purity Division leads the way. Our dedicated Q.C. staff consists of Material Inspectors and Certified Weld Inspectors.


Modern Piping Inc. possesses the instruments and equipment to meet the strict requirements of the BPE construction standards. From measuring ovality to surface roughness, our Q.C. staff maintains strict control over stock material waiting to be installed.


Inspections are not complete if you cannot view the weld, which is why Modern Piping Inc. as invested in a fiberscope to allow 3rd parties or our own Certified Weld Inspectors to view weld quality.

High purity


Our pipefitting/steamfitting clients range from small and commercial to large industrial, many of which are Fortune 500 companies. 

Pipefitting/steamfitting is one of Modern Piping’s core competencies. We complete the design, layout, installation, assembly, fabrication, maintenance, repair, and troubleshooting of mechanical piping systems that carry fuel, chemicals, pharmaceuticals, agricultural products, water, steam, and air. Our piping specialties are involved in processes such as heating, cooling, lubrication, and more.  


Modern Piping has the necessary materials such as carbon steel, stainless steel, and many other alloy metals ready to fuse through precise cutting, threading, grooving (Victaulic), bending, and welding to deliver the safest and most reliable pipefitting/steamfitting in the business.  


Modern Piping has installed thousands of feet of process piping with several qualified orbital welders on staff. Our welders are qualified for ASME B31.3 and BPE weld procedures and have worked in several industries that utilize high purity piping systems, including food manufacturers, semiconductors, pharmaceuticals, and medical manufacturing. We understand the care installers use to provide systems that are subject to governmental audits and validation. The skilled tradesmen working on these systems are held to the utmost quality standards and the quality of their installations are verified several times throughout QC and documentation processes. 




Our commercial and industrial capabilities include:

  • Underground Site Utilities 

  • Complete Sanitary Systems 

  • Domestic and Reverse Osmosis Water Systems 

  • Soil, Waste, and Vent Piping 

  • Certified Back Flow Prevention and Testing 

  • Commercial Fixtures 

  • Wastewater Treatment Plants 

  • Water Filtration and Pump Facilities 

  • Acid Waste Systems 

  • Certified Installer of Medical Gas Piping Systems for Hospitals 

  • Clear Water Drainage Systems 



We began as Modern Refrigeration Inc. in 1939 and have followed the footsteps of our founders ever since. Our refrigeration technicians have extensive experience with ammonia systems, chillers, industry codes and standards, and nuanced refrigeration safety requirements. 


  • 24-Hour Emergency Service by Factory Trained and EPA-Certified Technicians

  • Refrigeration Consulting, Planning, and DesignPreventive Maintenance Programs

  • Service for systems and refrigerants – Ammonia, Freon, Glycol, etc.

  • Refrigeration System Installation, Replacement and Modification

  • Refrigerant Recovery

  • Condenser and Evaporator Coil Cleaning, Refrigerant Level Check, Leak Check and more

  • Compressor Replacements

  • Ice Machines

  • Walk-in and Reach-in Coolers and Freezers

  • Blast Chillers

  • Warehouse Refrigeration

  • Industrial and Laboratory Refrigeration


Equipment and Parts

Finding the proper equipment for new systems or the correct parts to repair existing systems can be daunting. Our team of experts has extensive systems knowledge and established relationships with industrial refrigeration equipment/parts manufacturers listed below. Whether you are installing a new refrigeration system or refurbishing an existing one, we offer competitive solutions for your needs. 

To place in order, find more information, or inquire about equipment or parts from manufacturers not listed above, please call us at

(563) 584-0551 or click here.


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