The first tower crane was invented in the late 1940s, and it completely changed the landscape of the construction industry. It’s highly efficient machinery that enables the construction work to be performed at a very high altitude.
Especially when it comes to constructing skyscrapers or even tall buildings, tower cranes play an instrumental role in ensuring efficient construction work. However, there are some caveats that construction companies need to vary, especially at high elevations.
The tower cranes are exposed to a number of hazards that can present the risk of accidents. In fact, the Census of Fatal Occupational Injuries (CFOI) reported 220 total crane-related deaths during the period between 2011 and 2015.
Wind pressure—the culprit!
One of the top reasons behind these incidents was exposure to wind. As the wind speed augments along a gradient as height is increased. As the wind speed doubles, the wind pressure increases four times in proportion.
The wind pressure exerts on a tower crane’s load, the increase in wind speed can threaten the safety of workers at the construction site. Hence, construction companies use pressure gauges to keep a tab of the wind speed to minimize the chances of any mishap.
What is a pressure gauge?
A pressure gauge, as the name implies, is an instrument that helps calculate the air pressure at the construction site at different levels of elevation. It’s installed on tower cranes in order to avoid hazardous lifting situations.
Here are some frequently asked questions about pressure gauges.
FAQ#1: What is the pressure differential?
Pressure differential, or PD, is the variance between two pressures. It’s measured relative to the pressure in the atmosphere around it. The PD illustrates the difference between two pressure points within a process system.
The higher difference results in more pressure drop across that filter and vice versa.
FAQ#2: How is the correct pressure determined?
Use a pressure gauge to check the pressure and compare it with the recommended pressure for the relevant application. These devices come with different calibrations, ranging between 0 to 15 PSI to 0 to 1,000 PSI.
Hence, you must ensure to choose a pressure gauge that is appropriate for the application process. Each process has unique defined parameters, which you can use as a guideline to determine the correct pressure.
FAQ#3: How can a pressure gauge be calibrated accurately?
It can be quite difficult to calibrate a pressure gauge as it involves a complicated process. Moreover, every pressure gauge has a different calibration technique.
Hiring the services of a professional takes the guesswork out of pressure gauge calibration and helps ensure precise measurement. You may consult your product manufacturer for further assistance.
FAQ#4: How is a pressure gauge installed?
Pressure gauges can be installed into a manifold or pipe fitting using the mount that’s usually the part of the gauge or comes separately.
Some pressure gauges have a threaded mount on the lower side, which allows you to simply mount it on the tower crane. Others may come with threads on the backside and usually mounted on a panel.
FAQ#5: My pressure gauge reads negative. What does it mean?
If your pressure gauge is showing a negative value, it’s an indication that there’s something wrong with your device. That’s because the air pressure is measured in a positive number. It’s recommended that you call a professional to fix the pressure gauge.
Either the device is working on a vacuum or malfunctioning in some other way. In some cases, the wrong calibration also causes the pressure gauge to show negative value.
Looking for a high-quality load pressure gauge? Get in touch with Contact Instruments. As one of the leading OEM drilling instrumentation manufacturer in Canada, we provide top-quality crane safety equipment, including different kinds of pressure gauges, including mud gauges, standpipe pressure gauges, and more.
For more details, call us at 780-955-8998 today!