Rigid aluminum for visible runs, semi-flexible tubing for buried and hidden ones. Here is how a VA Commercial Repair Solutions Installer chooses between them.

Neither system needs welding, soldering, or threading. Both can be painted. The color only identifies the contents: blue marks compressed air, and green marks inert gases.

When Should a Virginia Business Owner Choose FastPipe?

Choose FastPipe for any run that stays visible and on the surface. That includes the main line along a shop wall, drops down to each bay, and overhead runs in a warehouse or manufacturing floor.

RapidAir points out that a rigid pipe arrives straight, so a wall-mounted system looks neat and professional without fighting a coil of tubing. Rigid pipe is also the better fit for the main line of larger systems, where diameter matters most.

Diameter is where the two systems differ in a way that surprises people. RapidAir notes that 3/4-inch FastPipe measures about 0.69 inches on the inside, while 3/4-inch MaxLine measures about 0.80 inches. For that reason, RapidAir says a 1-inch FastPipe main line is usually the better choice than 3/4-inch for a shop main. We size every Central Virginia project by CFM and run length, not by the label on the pipe.

When Should a Virginia Shop Choose MaxLine?

Choose MaxLine when the tubing has to go where rigid pipe cannot. RapidAir designs MaxLine to be direct buried in soil or concrete without conduit, and recommends wrapping the fittings with its tape wrap and sleeving the tubing where it comes up through a slab.

That makes MaxLine a strong fit for:

• A run to a detached shop, barn, or outbuilding
• Lines buried under a concrete floor before a pour
• Hidden runs behind perlins in a steel building or across trusses and above false ceilings
• In-wall runs behind wall outlets

RapidAir adds a caution about the 1-inch size. It unrolls harder than the smaller sizes, is difficult to straighten for surface-mounted work, and its compression fittings take more force to tighten. For long continuous runs with few fittings, it works well. For straight, visible runs on a wall, RapidAir says to choose FastPipe.

MaxLine is also built to handle compressor oils. RapidAir states that MaxLine is not PEX. Water-rated PEX is a single-layer cross-linked polyethylene, and RapidAir says no PEX maker rates it for compressed air. Do not substitute plumbing tubing for air tubing.

Can You Use FastPipe and MaxLine in the Same System?

Yes, with the right adapters. RapidAir says there is no direct fitting between the two, but standard pipe-thread adapters connect them. The fittings themselves are not interchangeable, so you cannot buy a MaxLine fitting at a hardware store and use it on FastPipe.

Both systems also adapt to existing black iron or copper through an NPT thread adapter. That matters if your shop has an older system you want to keep in part while replacing the failing sections. We often design a hybrid: FastPipe for the visible main and drops, and MaxLine for the buried run to a second building.

Which System Is Right for a Brewery or Vineyard?

Food and beverage use has its own rules. RapidAir says MaxLine does not carry the agency ratings for food and beverage that its separate Duratec product holds. If compressed air touches product, packaging, or sterile process steps, the piping choice is only part of the answer. Filtration and drying at the point of use matter as much.

Our team already serves breweries and vineyards through our microbrewery and vineyard mechanical services. Ask us about product-contact applications before you buy any pipe.

Do Virginia Weather and Buildings Change the Choice?

They can. Virginia shops range from heated bays in Charlottesville to unheated barns and detached buildings in the Shenandoah Valley. FastPipe is rated down to 0 degrees F, and MaxLine down to -40 degrees F, so an unheated outbuilding in the mountains is a reason to check the lower limit before choosing.

Sun exposure matters too. An aluminum main under a metal roof is fine, but RapidAir recommends covering FastPipe fittings and all MaxLine tubing from direct sunlight to extend service life.

How Does VA Commercial Repair Solutions Work?

We start with a walk-through and a look at your compressor, then design every layout in house. We pick the system for each run, not for the whole building. Our RapidAir installation service includes the design, the install, and the follow-up. We also repair and rent air compressors, so one team covers the entire air system. A live person answers our phones 24 hours a day, with no voicemail. Browse our installation gallery to see past work, or request a free quote.

Frequently Asked Questions

What is the difference between RapidAir FastPipe and MaxLine?
FastPipe is rigid blue aluminum pipe for visible, surface-mounted runs. MaxLine is semi-flexible multilayer polyethylene tubing that can be buried in soil or concrete and run through hidden spaces. VA Commercial Repair Solutions installs both across Central Virginia.

Can MaxLine be buried underground?
Yes. RapidAir designs MaxLine for direct burial in soil or concrete without conduit. FastPipe and the RapidAir Home Garage Kit are not suitable for burial.

What is the maximum pressure for FastPipe and MaxLine?
RapidAir lists 190 psi for FastPipe and 200 psi for MaxLine. Most shop systems run at 90 to 110 psi through a regulator.

Are FastPipe and MaxLine fittings interchangeable?
No. They connect through standard pipe-thread adapters. Both systems also adapt to black iron and copper.

Is MaxLine the same as PEX?
No. MaxLine is multilayer high-density polyethylene designed for compressed air and compressor oils. RapidAir says no PEX manufacturer rates PEX for compressed air.

Who installs FastPipe and MaxLine near Staunton, Harrisonburg, or Charlottesville?
VA Commercial Repair Solutions, based in Fishersville, Virginia, is the local RapidAir factory representative and installer. We serve a 250-mile radius, with a live person on the phone 24/7 at (540) 457-4822 or (866) 729-2215.