Revolutionize Your Internal Pipe Cleaning with EXAIR Back Blow Nozzles

In industrial manufacturing, cleaning the inside of pipes, tubes, and blind holes has traditionally been a challenge. Standard forward-blowing nozzles often push debris deeper or create safety hazards by ejecting material out the far end. EXAIR solved this problem with their innovative Back Blow Air Nozzles, designed specifically to “wipe” internal surfaces clean by directing airflow backwards toward the operator.

How They Work

These nozzles utilize the Coanda effect to amplify compressed air, entraining surrounding ambient air to create a high-velocity 360-degree cone of air. Because the air is directed back toward the inlet, it pulls coolant, chips, and debris out of the opening rather than forcing them further in.

See the “Back Blow Magic” in Action

Watch this EXAIR video demonstration to see a Back Blow Nozzle clear debris from a plugged pipe in a single pass.

Common Applications

Manufacturers across various industries use these nozzles to improve efficiency and safety. Typical uses include:

  • Machined Part Cleaning: Removing coolant and metal chips from blind holes or internal threads.
  • Hydraulic Cylinder Repair: Cleaning honed bores ranging from 2″ to 16″ in diameter.
  • Tube & Pipe Manufacturing: Clearing debris from long lengths of pipe where forward blowing is impractical.
  • CNC Machining: Quickly cleaning out spindles between tool changes.
  • Electronics Recycling: Removing residual powder from spent toner cartridges.

Key Product Features

  • Material: Manufactured from durable Type 316 Stainless Steel for superior corrosion and wear resistance.
  • Size Range: Available in three sizes—M4, 1/4 NPT, and 1 NPT—covering internal diameters from 1/4″ to 16″.
  • Safety & Compliance: Meets OSHA standards for noise and dead-end pressure.
  • Configurations: Can be mounted on VariBlast, Soft Grip, or Heavy Duty Safety Air Guns with extensions up to 72″ and optional chip shields for operator protection.

Would you like to know which Safety Air Gun model or extension length is best suited for your specific pipe diameter? Give us a call!

Al Wooffitt
Application Engineer

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Why Engineered Air Nozzles Outperform Open Pipes (And Cut Air Use by Up to 70%)

Compressed air is one of the most expensive utilities in any manufacturing facility—yet it’s often treated as “free.” One of the biggest contributors to wasted compressed air is the continued use of open pipes, drilled pipes, or homemade blowoffs for cleaning, drying, and cooling applications.

While these methods may seem simple and inexpensive, they are inefficient, unsafe, noisy, and costly over time. EXAIR Engineered Air Nozzles are designed to solve these exact problems. Often reducing compressed air consumption by up to 70% while improving performance.

Open pipes release compressed air directly to atmosphere with no control, no amplification, and no optimization. This creates several major issues:

Excessive Air Consumption

An open 1/4″ pipe at 80 PSIG can consume 25+ SCFM continuously. Multiply that across shifts, days, and multiple stations, and the cost quickly adds up.

Poor Performance

Open pipes create turbulent airflow that dissipates rapidly, requiring higher pressure and more air to achieve acceptable results.

High Noise Levels

Uncontrolled air release produces noise levels that can exceed OSHA limits, creating safety and compliance concerns.

Safety Risks

Open pipes can generate dangerous dead-end pressures and flying debris, posing serious injury risks to operators. Creating real situations where

What Makes EXAIR Engineered Air Nozzles Different?

EXAIR Engineered Air Nozzles are precision-designed to maximize force while minimizing air consumption. Instead of wasting compressed air, they use advanced airflow geometry to do more with less.

Air Amplification

EXAIR nozzles use the Coandă effect to entrain surrounding ambient air. For every unit of compressed air used, multiple units of free air are pulled into the flow—creating higher output force without increased air usage.

Optimized Flow Patterns

Rather than chaotic turbulence, engineered nozzles produce laminar, focused airflow that delivers better cleaning, drying, and cooling results at lower pressure.

Significant Air Savings

It’s common to see 30–70% reductions in air consumption when replacing open pipes with EXAIR air nozzles—often with improved performance.

Eleminate Safety Risks

Air nozzles and jets are designed to operate well above 30 PSIG while creating dead end pressures well below the OSHA limits. Giving you better performance safley.

EXAIR Model 1100 Super Air Nozzle Replaces Open Copper Pipe Blow Off

Replacing open pipes with EXAIR Engineered Air Nozzles is one of the simplest and most cost-effective improvements you can make to a compressed air system.

If you’re serious about:

  • Reducing energy costs
  • Improving safety
  • Lowering noise levels
  • Getting more from your compressed air

…it’s time to stop blowing money into the air.

EXAIR Engineered Air Nozzles prove that better design beats brute force—every time.

Jordan Shouse, CCASS

Application Engineer / Sales Operations Engineer

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Customize Your Safety Air Gun to Best Meet Your Needs

EXAIR has an extensive line of Safety Air Guns that will meet a variety of applications. Our VariBlast Precision, Compact, Soft Grip, Heavy Duty and Super Blast Safety Air Guns, and TurboBlast will give you a wide range of options to choose from. These options can be expanded on even further through the addition of our Air Gun Accessories. In this blog I want to cover a few of the ways you can customize and personalize your Safety Air Gun to make sure you are getting the most out of our products.

Features & benefits of the new TurboBlast Safety Air Gun

Once you have selected your particular Air Gun, you will want to make sure that you have the right nozzle. Every Air Gun has multiple nozzle options with different force and flow specifications. If your main concern is low sound levels, then the Mini Super Air Nozzle may be the best option. If you need more force, then the 2″ High Power Flat Super Air Nozzle would be preferred. We also have Back Blow Nozzles that are great for blind holes.

In addition to this, there are several different material choices. Zinc-aluminum for general purposes, Type 303 stainless steel for corrosion resistance, Type 316 stainless steel for superior corrosion resistance and mechanical wear, and finally PEEK thermoplastic for non-marring and chemical resistance.

Model 1210 Soft Grip Safety Air is fitted with an EXAIR Super Air Nozzle. We can also supply it with a Rigid Extension and Chip Shield (right).

After you have determined the right nozzle, do you need to add a Chip Shield? If you have the potential for flying debris, and you want to protect your operator, then our Safety Air Guns can be equipped with a durable polycarbonate shield. They are also useful for preventing coolant from splashing back, helping you to avoid a mess. You can see a Chip Shield in action in the video below:

We also have various length extensions for when you need more reach for your blowoff operation. Depending on the Air Gun, we have lengths ranging from six inches to six feet. These are great when used in conjunction with our Chip Shields. If you need something more flexible than a straight extension, our Soft Grip Safety Air Gun can also be used with our Stay Set Hoses. These hose have a ‘memory’ to allow for precise positioning without creeping or bending.

Specifically with our Soft Grip Safety Air Gun, we have a special extension and scraper combination, covered in detail in this blog. The Soft Grip Super Air Scraper is highly effective at removing stubborn debris from various surfaces.

Coiled Hose

Finally, we stock a 12‘ coiled air hose. These are available with 1/8NPT, 1/4NPT and 3/8NPT male end swivel connections. This will help you avoid messy and tangled air lines.

Al Wooffitt
Application Engineer

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EXAIR Back Blow Nozzles and Air Guns

In the fast-paced world of industrial manufacturing, keeping equipment clean is crucial. Chips, coolant residue, and debris can accumulate inside pipes, tubes, hoses, and channels, leading to downtime, reduced performance, and even safety hazards. Traditional forward-blowing air tools often push contaminants deeper into these confined spaces or out the wrong end, creating more problems than they solve. Enter EXAIR’s Back Blow Nozzles and Air Guns—a game-changing solution designed to tackle these challenges head-on. If you’re new to these tools or just curious about how they work, I highly recommend checking out this insightful video blog from one of our Application Engineers. It offers a close-up look at the nozzles in action inside a pipe, demonstrating their 360-degree airflow in real time. It’s a quick, eye-opening demo that perfectly illustrates the “back blow” magic.

What Are Back Blow Nozzles?

At their core, EXAIR Back Blow Nozzles are engineered precision tools made from durable Type 316 stainless steel (SS) to withstand harsh industrial environments. Unlike standard nozzles that blast air forward, these feature an array of holes around the nozzle’s circumference that blow backwards. This creates a powerful, uniform 360-degree airflow pattern that “wipes” the internal surfaces clean as it travels backward toward the operator. The result? Debris, chips, and coolant are pulled out and ejected safely—without forcing them further into the pipe or creating projectiles that could fly out the far end. This backward-directed flow is especially valuable for:

  • Cleaning blind holes and dead-end channels.
  • Clearing long tubes where forward blowing is impractical.
  • Removing sticky or stubborn buildup from machining processes.

All EXAIR Back Blow Nozzles comply with OSHA standards for noise (29 CFR 1910.95(a)) and dead-end pressure (29 CFR 1910.242(b)), ensuring they are safe for operators while delivering high performance.

The Lineup: Sizes for Every Application EXAIR offers three Back Blow Nozzle models, each optimized for specific pipe diameters. Here’s a quick breakdown:

Power Up with Safety Air Guns

While the nozzles shine on their own, attaching them to an EXAIR Safety Air Gun takes functionality to the next level. These guns feature ergonomic designs, automatic shutoff valves, and variable force options to reduce fatigue and enhance control. Plus, they’re OSHA-compliant, with dead-end pressures well below the 30 psi limit to prevent injuries from air bursts. Here are the key air gun options compatible with Back Blow Nozzles:

  • VariBlast Compact Safety Air Gun: A lightweight, variable-force tool with a rugged aluminum body and ergonomic grip. Ideal for the 1004SS nozzle in smaller applications—perfect for quick, precise clean outs without overkill.
  • Soft Grip Safety Air Gun: Built for extended use, this features a cushioned handle and full-grip trigger to minimize hand strain during long shifts. Available with 1004SS or 1006SS nozzles, plus extensions up to 72″ and optional Chip Shields for blow back protection.
  • Heavy Duty Safety Air Gun: Tough as nails for demanding environments, with a reinforced handle and high-impact durability. Pairs well with the 1006SS for reliable performance in gritty workshops.
  • Super Blast Safety Air Gun: The powerhouse of the bunch, delivering maximum force for the 1008SS nozzle. Extensions up to 6 feet make it a beast for large-scale pipe cleaning, like hydraulic cylinders or industrial conduits.

No matter which gun you choose, adding a Chip Shield is a smart move—it keeps flying debris away from the operator, turning a potential hazard into a hassle-free task.

Heavy Duty Back Blow Safety Air Guns come with Chip Shields, and Rigid Extensions from 6″ to 72″ in length.

If you have an application you would like to discuss, give us a call!

Jordan Shouse, CCASS

Application Engineer

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