Page 134 - WURTHSA CATALOGUE 2018

PNEUMATIC TOOLS

Couplers 08 - Filter, Regulator, Lubricator
Art. No. 00699… Art. No. 00699 003 12 - 1/2”
The wall fitting will determine which Art. No. 00699 003 14 - 1/4”
of the displayed couplers will be most suitable for receiv- When choosing the F,R,L it is important to ascertain
ing the air hose. what tools the customer will be using and what flow
It is important to note that there are numerous types of rate he will require i.e. 1” Impact Wrench (307 l/min),
couplers in the market and these cannot be mixed i.e. uses far more air than a 1/2” Impact Wrench (102 l/
Type 14 couplers can only be used with type 14 couplers. min) would.
It is also important to note that the regulator should be located as
close as possible to the user. The oil mist is transported optimally up
to 5 meters. The working pressure drops with an increase in length of
the air hose.
In a workshop scenario as depicted below, a number of 1/2” F, R, L
is advised.

Compressor
When selecting a compressor, it is important
that the capacity of air it produces is sufficient
to run your air tools. Most compressors will
have the pressure to start an air tool, but not
necessarily the volume to maintain running
the tool.
Volume is defined as cfm (cubic feet per mi-
nute) or l/min (litres per minute), and should
in most cases be available on the compressor
itself or within the technical information
supplied.

Determining your power requirements of an air compressor
There are two main considerations with regards to air compressor power requirements; determining the air flow required and selecting the tank size.

Air flow required
Compressors are measured in two main ways, PSI (pounds per square inch) and deliverable CFM (cubic feet per minute). These measurements determine the effectiveness of
the air compressor in different situations. When selecting a compressor you need to identify the PSI and CFM requirements of your air tools. If you will only be using one tool at
a time use the tool with the highest PSI and CFM requirement. If you intend to run multiple tools at the same time you will need to total the CFM's required by each tool.

The key is to choose an air compressor that exceeds the PSI and CFM airflow requirements of your highest rated air tool. That way you're sure to not be under-powered. The best
results are obtained when you purchase a compressor with 1.25 to 1.5 times more CFM airflow at the recommended PSI than your air tool(s) require. This method will ensure
the performance of your air tool(s) will be maintained without over working the compressor and losing efficiency.

Examples
Single tool use: If a 1/2" impact wrench requires *5.0 CFM (141.64 l/min) @ **90 PSI (6.2 Bar), then the compressor should deliver between 6.25 - 7.5 CFM @ 90 PSI.
Multiple tool use: If you plan to run more than one tool at the same time, you must add the CFM of each tool together to determine your needs. If your compressor needed to
power a Cut Off Tool (4 CFM @ 90 PSI) and a High Speed Grinder (4 CFM @ 90 PSI) you should look for a compressor that can deliver 10 - 12 CFM @ 90 PSI or higher.

*Converting CFM to l/min: 1 cfm = 28.328 l/min **Converting PSI to Bar: PSI/14.5 = Bar
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