Back Blow Air Nozzle
Applications
- Part cleaning
- Chip removal
- Liquid blowoff
- Part cooling
- Material conveying
- Part ejection
- Fiber conveying
- Air assist
Advantages
- Reduced compressed air cost
- 10 dBA average noise reduction
- Conserve compressed air
- Improved blowoff performance
- Compact
- Improved safety
- Meets OSHA noise level requirements
- Meets OSHA pressure requirements
- Improved production
Materials
Type 316 Stainless Steel high temperatures, corrosive environments, and mechanical wear. Max temp 1000°F (538°C)
Accessories
Chip Shields - should be used to protect operators from flying debris.
|
| Extensions provide the necessary reach to clean out your pipe, tube, hose or channel. Available up to 72" (1829mm) long. | |
| Model | Description |
| 9492 | 6" (152mm) Aluminum, M4x0.5 |
| 9493 | 12" (152mm) Aluminum, M4x0.5 |
| 9495 | 24" (152mm) Aluminum, M4x0.5 |
| 9497 | 36" (152mm) Aluminum, M4x0.5 |
| 9188 | 12" (305mm) Aluminum, 1/4 NPT |
| 9189 | 18" (477mm) Aluminum, 1/4 NPT |
| 9190 | 24" (610mm) Aluminum, 1/4 NPT |
| 9191 | 36" (914mm) Aluminum, 1/4 NPT |
| 9192 | 48" (1219mm) Aluminum, 1/4 NPT |
| 9193 | 60" (1524mm) Aluminum, 1/4 NPT |
| 9194 | 72" (1829mm) Aluminum, 1/4 NPT |
| 900353 | 12" (305mm) Aluminum, 1 NPT |
| 901254 | 36" (914mm) Aluminum, 1 NPT |
| 901259 | 72" (1829mm) Aluminum, 1 NPT |
Back Blow Air Nozzle Performance | ||||
| Model | Air Consumption | Sound Level | Use with | |
| SCFM | SLPM | dBA | Inside Diameters | |
| 1004SS | 4.5 | 127 | 75 | 1/4" – 1" (6.3-25.4mm) |
| 1006SS | 22 | 622 | 80 | 7/8" – 4" (22-102mm) |
| 1008SS | 57 | 1,614 | 89 | 2" – 16" (51-406mm) |
How the Back Blow Air Nozzle Works |
 |
|
Air Nozzles use the Coanda effect to amplify compressed airflow up to 25 times or more. Back Blow Air Nozzles eject air from an annular ring of nozzles on the outer perimeter, as illustrated. The ring of nozzles eject air, back toward the air inlet at an angle to form a cone of high velocity air. The airstream that results is a high volume, high velocity blast of air at minimal consumption. The air is ejected safely and cannot be blocked, maintaining OSHA's dead end pressure standard. |
Back Blow Air Nozzle Dimensions & Airflow |
| Model 1004SS Back Blow Air Nozzle |
|
|
| Model 1006SS Back Blow Air Nozzle |
|
|
| Model 1008SS Back Blow Air Nozzle |
|
|
Back Blow Air Nozzle Standards and Certifications
EXAIR Back Blow Air Nozzles comply with OSHA's Safety Requirements, the EU General Product Safety Directive (2001/95/EC) and meet the noise limitation requirements of the EU Machinery Directive (2006/42/EC). All sound level measurements are taken at 3 feet away.
Look for this symbol to designate conflict mineral free products throughout our website. EXAIR supports Section 1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act and we are committed to compliance with the conflict minerals rule in order to curb the illicit trade of tin, tantalum, tungsten and gold in the DRC region. EXAIR is using the CMRT 3.02 template to document our supply chain and commitment to conflict free products.
Back Blow Air Nozzle Awards
EXAIR's Back Blow Air Nozzles won a bronze medal in the 2015 Plant Engineering Product of the Year Awards. The 1004SS Back Blow Air Nozzle won in the Compressed Air Category.
Efficiency Lab
Does your company currently use a blowoff product similar to EXAIR’s that you’d like us to evaluate? Ship it to the EXAIR Efficiency Lab! Our qualified staff will test it for FREE, using EXAIR’s calibrated testing equipment. We’ll compare the performance of your existing product (air consumption, effectiveness, noise levels, efficiencies, etc) with the EXAIR Intelligent Compressed Air® products. The results will be published in a comprehensive report that includes a cost savings analysis. For most applications, EXAIR products can help you improve your efficiency AND typically pay for themselves in a matter of weeks.
To participate in our Efficiency Lab testing, please complete this Product Efficiency Survey to give us the details about your current application and blowoff set up. You can also feel free to contact an Application Engineer for more information at (800) 903-9247 or (513) 671-3322.
After completing the form, your product can be shipped to: Efficiency Lab, EXAIR, 11510 Goldcoast Dr., Cincinnati, OH 45249-1621
This offer is available to all customers in the U.S. and Canada only. Some restrictions might apply.
Products must be shipped to EXAIR freight prepaid. EXAIR will pay the return shipping via UPS ground.
If you cannot send in your product, fill out this Product Efficiency Survey to give us the details about your current application and we will estimate the savings for you.
Selecting the Right Air Nozzle
EXAIR manufactures a wide selection of Air Nozzles and Jets, which are divided into two groups. The first group of Standard Force Air Nozzles includes Air Nozzles and Jets that deliver force up to 22 ounces (624 grams) and are suitable for most applications. The second group of High Force Air Nozzles includes Air Nozzles that produce high force up to 23 lbs (10,43 kg) where additional reach and force are required.
- Type 303 Stainless Steel - high temperatures and corrosive environments. Max temp 800°F (426°C)
- Type 316 Stainless Steel - high temperatures, corrosive environments, and mechanical wear. Max temp 1000°F (538°C)
- Brass - general purpose applications. Max temp 400°F (204°C)
- Zinc - aluminum alloy- general purpose applications. Max temp 250°F (121°C)
- PEEK - replaces metals in harsh environments. Offers chemical resistance and is non-marring. Max temp 320°F (160°C)
Safe and Efficient Use of Compressed Air
The inefficient use of compressed air for blowoff applications may create problems due to the energy costs, noise level and potential danger to personnel who are exposed to high pressure air. Open air pipes, copper tubes and drilled pipes are a few of the common abusers. They consume tremendous amounts of energy and often produce noise levels over 100 dBA.
Reduce Energy Costs
The best way to cut energy costs is through proper maintenance and use of the compressed air system. Leaks and dirty filters require maintenance on a regular basis. Energy savings can also be realized when replacing outdated compressor motors and controls with high efficiency models that often pay for themselves in a short period of time.
The most important factor to dramatically boost efficiency is proper use. Using engineered products like EXAIR's Super Air Nozzles can cut operating costs since they use only a fraction of the compressed air of typical blowoffs. In addition, all of EXAIR's Air Nozzles and Jets can be cycled on and off with an instantaneous response. EXAIR's EFC is an electronic flow control that limits compressed air use by turning on the air only when a part is present.
Reduce Noise Levels
High noise levels are a common problem for many plants. Compressed air noise often exceeds OSHA noise level exposure requirements, resulting in hearing loss to those working in close proximity. Noisy blowoffs at 80 PSIG (5.5 BAR) that produce noise levels of 100 dBA can be reduced to only 74 dBA when using a Super Air Nozzle. At that pressure, it is still possible to obtain hard-hitting force without the high noise.
Eliminate Harmful Dead End Pressures
Air can be dangerous when the outlet pressure of a hole, hose or copper tube is higher than 30 PSIG (2 BAR). In the event the opening is blocked by a hand or other body part, air may enter the bloodstream through the skin, resulting in a serious injury. All of the Air Nozzles and Jets manufactured by EXAIR have been designed for safety. All are safe to be supplied with higher pressure compressed air and meet OSHA standard 29 CFR 1910.242(b).
Stay Safe
If an air hose, open pipe, or copper tube has an outlet pressure that's greater than 30 PSIG, a worker can be seriously injured or killed if they block the opening with a hand or other body part. At that pressure, it is possible for air to enter the bloodstream through the skin (Occupational Safety and Health Administration (OSHA) standard CFR 1910.242(b)). Every one of EXAIR's Air Nozzles have been designed to prevent that blockage at any pressure. If you are currently using open pipe or commercial nozzles for your blowoff or cooling operation, you're already well aware of how loud it can get. These devices can produce noise levels that are well over 100 dBA. OSHA warns that an unprotected worker can only work for 2 hours in the proximity of 100 dBA noise before permanent hearing loss will occur (OSHA standard 29 CFR 1910.95(a)). For instance, EXAIR's Model 1100 Super Air Nozzle has a noise level of only 74 dBA at 80 PSIG yet still produces .8 lbs of strong blowoff force!Save Money
One item that is often overlooked when auditing your company's expenditures is the cost of compressed air. On a 24 hour production line, reducing average compressed air use by even one Standard Cubic Foot per Minute (SCFM) can result in a savings of over $130 per year and, replacing open tubing or a commercial nozzle with an engineered nozzle from EXAIR can reduce air use by 50-70%!Save Time
Now that you know why you should pick EXAIR's engineered nozzles, here's an easy way to do it! EXAIR's Blowoff Guide contains pictures, specifications, and examples that make it a breeze to choose the right Air Nozzle or Safety Air Gun for your application. Click Here to Order EXAIR's Free Blowoff Guide!Saving Money and Compressed Air
OSHA Maximum Allowable Noise Exposure | |||||||
| Hours per day (constant noise) | 8 | 7 | 4 | 3 | 2 | 1 | 0.5 |
| Sound level dBA | 90 | 91 | 95 | 97 | 100 | 105 | 110 |
| OSHA Standard 29 CFR - 1910.95(a) | |||||||
The table above shows the air consumption for typical homemade blowoffs.
Consider the following example where a Model 1102 Mini Super Air Nozzle replaces a 1/8" (3.2mm) open pipe. The compressed air savings is easy to calculate and proves to be dramatic. Payout for Air Nozzles and Jets, including filter and installation cost is measured in weeks - not years, as is the case for other cost reduction equipment. Based on a 40 hour work week, 52 weeks a year.
- Example: Existing blowoff is 1/8" (3.2mm) open pipe at 80 PSIG (5.5 BAR) supply. Air consumption, from the table above, is 70 SCFM (1,981 SLPM).
- Use a 1/8 FNPT Model 1102 Mini Super Air Nozzle also at 80 PSIG (5.5 BAR) supply. Air consumption is 10 SCFM (283 SLPM).
- Compressed air saved = 70 - 10 = 60 SCFM (1,981 - 283 = 1,698 SLPM).
- For this example, the blowoff is continuous. If the duty cycle was 20%, then air saved would be 60 x .2 = 12 SCFM (1,698 x .2 = 340 SLPM).
- Most large plants know their cost per 1,000 standard cubic feet of compressed air (10,000 standard liters). If you don't know your actual cost per 1,000 SCF, $0.25 is a reasonable average to use. (Cost per 10,000 standard liters is approximately $0.089.)
- Dollars saved per hour = SCFM saved x 60 minutes x cost/1,000 SCF (SLPM saved x 60 min x cost/10,000 SL) = 60 x 60 x $0.25/1,000 (= 1,698 x 60 x $0.089/10,000)
- = $0.90/hour
- = $0.90/hr. is $36.00/week and
- = $1,872.00/year savings for One nozzle!
-
Back Blow Air Nozzles are made from Type 316SS. -
A 1 NPT Back Blow Nozzle cleans out a hydrailic cylinder during repair and can clean out diameters up to 16". -
This M4 x 0.5 Back Blow Nozzle is just over 1/2 inch long and 0.2" in diameter in order to clean out holes a small as 1/4" in diameter.