How compressed air nozzles work

May 2002 Pressure Measurement & Control

Air nozzles use the coanda effect to amplify compressed airflow 25 times or more. As illustrated on the right, compressed air (black arrows) is ejected through a thin ring nozzle on the outer perimeter. As the air travels along the outer wall of the nozzle, surrounding air (blue arrows) is entrained into the stream. The centre hole concentrates this airstream resulting in a high volume, high velocity blast of air at minimal consumption. The air is always ejected so it can vent safely should the nozzle end be blocked, well below OSHA dead ended pressure requirements.

ETEST

031 767 1779

Further reading:

Don’t buckle under pressure
VEGA Controls SA Pressure Measurement & Control
In Africa, urban populations are increasing and infrastructure is expanding at an unprecedented pace. This makes sustainable water management and treatment more crucial than ever. By investing in VEGA pressure instrumentation, water utilities and municipalities are equipping themselves with pressure sensors that facilitate sustainable water management focused on efficiency, reliability and resilience.

Read more...

---

VEGA handles the pressures of water treatment systems
VEGA Controls SA Pressure Measurement & Control
A water treatment system for a major metropolitan area in the Midwestern United States demands careful monitoring and management of processes across its sprawling network. Choosing VEGA for its process automation needs meant more than just obtaining precise and reliable pressure sensors.

Read more...

---

Monitoring the health of systems
SA Gauge Pressure Measurement & Control
Pressure and temperature gauges are vital instruments in various industries. However, they are susceptible to failures that can compromise their accuracy and reliability. When these gauges fail, the consequences can be severe.

Read more...

---

Enhancing beer brewing precision
VEGA Controls SA Pressure Measurement & Control
Brewing beer is a complex process that requires utmost precision in every step. To ensure precision, it is crucial to measure and control the pressure and point levels in the wort kettle and hops dissolver. Using VEGA instrumentation can offer numerous benefits to breweries.

Read more...

---

Greener mining through water management strategies
VEGA Controls SA Pressure Measurement & Control
Water scarcity is a pressing concern in South Africa, leading to the establishment of stricter regulations on water discharge and management. To promote greener mining operations that minimise environmental impact and optimise resource utilisation, responsible dewatering practices are essential.

Read more...

---

Pressure sensors for hydrogen applications
Instrotech Pressure Measurement & Control
Keller manufactures isolated piezoresistive pressure sensors. The great advantage of the piezoresistive measuring principle is its high stability.

Read more...

---

A new approach to milk processing
VEGA Controls SA Pressure Measurement & Control
Ensuring the quality and safety of milk throughout the production process is of the utmost importance in the dairy industry. Process instrumentation plays a vital role in this stage by providing accurate measurements of level, pressure and point level to guarantee optimal storage conditions.

Read more...

---

OEM high-pressure transducer with maximum long-term stability
Instrotech Pressure Measurement & Control
Instrotech is offering KELLER 10LHP, the flagship OEM pressure transducer in the KELLER product portfolio, which exemplifies the highest standards.

Read more...

---

Sensor technology for cartonboard machine for paper and packaging
VEGA Controls SA Pressure Measurement & Control
Paper and packaging specialist, LEIPA undertook a comprehensive modernisation project, combining three stock preparation lines into one, and making investments in new plant components and extensive automation technology. Because of the good experiences the company had already had with VEGA sensors, those responsible for planning and maintenance decided in favour of the VEGABAR 82 pressure transmitter as the standard instrument for level and pressure measurement in the new stock preparation system.

Read more...

---

Pressure measurement without risk of contamination
WIKA Instruments Pressure Measurement & Control
Injectables are among the most sensitive products in the pharmaceutical industry. Sterility is essential during production. For this reason, a manufacturer of biopharmaceuticals decided to implement the pressure monitoring of its processes with hygienic instruments from WIKA.

Read more...

---