Passionate about air technology and drive engineering
The ebm-papst product portfolio numbers over 15,000 products. We offer
the right solution for almost every air technology and drive engineering
task. In addition, we work with you to develop very customized solutions
that extend beyond our current product line. This is made possible by our
extensive team of over 650 dedicated engineers and technicians out of our
three central locations in Germany.
World Headquarters: Mulfingen, Germany
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The system solution that results from these three core competencies has
a synergy that is unique in all the world and makes up the majority of our
product line.
GreenTech
®
EC technology: Our motor for the future
Virtually our entire product range is now available with GreenTech, the
leading edge EC technology. GreenTech EC motors deliver unparalleled
energy efficiency when compared to conventional AC Technology. With wear-
free and maintenance-free performance, longer service life, lower noise,
intelligent electronic control, and higher aerodynamic efficiency, GreenTech
EC motors from ebm-papst are the future of air moving technology.
Passion, quality and responsibility: Three reasons for our success
Only real passion for fans and motors makes the highest level of achievement
possible. With a clear organizational structure, flat hierarchies and a high
degree of personal responsibility, we create the perfect foundation - not
only for technological innovation, but also for excellent service and active
dedication to closely working with our customers.
Of course, our products are also produced with the highest quality - at a total
of 17 facilities worldwide. Our quality management is uncompromising and
is present in every process stage. This is also confirmed by our certification
of compliance with the international standards ISO 9001, ISO/TS 16949
and the standard ISO 14001.
250,000 square feet
275 employees
Contract manufacturing
Acoustic testing chamber
Complete air testing lab on site
ISO 9001 and ISO 14001 certifications
Distribution centers in Farmington, CT and Toronto, Canada
ebm-papst is an innovator and market leader in fans, blowers, and
motors with core competencies in motor technology, aerodynamics, and
electronics. With over 15,000 products, we provide solutions to a wide
range of markets including Air-conditioning and Ventilation, Appliance,
Commercial Refrigeration, Heating, Industrial, Lighting, IT / Telecom, Medical,
Transportation and more.
Support when and where you need it
Knowledgeable field sales professionals are close by for face-to-face meetings.
Dedicated inside sales associates fulfill all of your ordering needs. To assist
you with order management, our Customer Relations department provides
automated services such as shipment notifications, reorder notifications, and
invoicing.
Design and manufacturing
Beginning with the initial product concept, our application engineers work in
tandem with customers to select the best air moving solution to suit specific
goals and requirements. Once the prototype has been established, it can
then be tested in our state-of-the-art airflow testing chambers to optimize
performance. Each chamber has been designed to meet AMCA 210 and
ISO 5801 requirements. In addition to our airflow testing capabilities,
ebm-papst can conduct comparative sound, temperature, and velocity
tests. The electrical engineering team can design everything from simple
fan controllers for monitoring fan speed to complex controllers and power
supplies, filtering, and specific communication protocols.
Logistics and inventory management programs
Our facilities feature over 90,000 square feet of climate-controlled warehousing,
and utilize bar coding for real-time inventory management. Supply chain
management programs such as Kanban, demand/pull, safety stock, consignment,
and local warehousing can be customized to your needs.
ebm-papst established in 1963
Manufacturing: Germany, Hungary, USA, Slovenia, India, China, Czech
Republic and Italy
Worldwide revenue over 1.5 billion USD
57 sales and distribution groups worldwide
11,000+ employees worldwide
Ship over 46 million products annually
Certifications: ISO 9001, ISO 14001 & RoHS compliant
Over 1,000 patents held in design
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Core competencies: motor technology, aerodynamics and electronics
Our innovative technologies keep turning into new industrial standards.
Our advantage: We consider aerodynamic relationships as a whole. Thus
we combine benchmark-setting motor technology with the intelligence of
state-of-the-art electronics and aerodynamically optimized shapes.
2
3
GreenTech
Worlds in Motion
The symbol of our commitment
GreenTech is a name put to the philosophy ebm-papst has used for decades:
“each new product that we develop has to be better than its predecessor in
terms of economy and ecology.” Our company philosophy is not just for
designing new and more efficient fans and blowers; it is in practice in the
offices and factories, locally and internationally. At the U.S. headquarters, two
separate arrays of solar panels have been installed to provide the engineering
building with electricity, along with additional renovations that make the
facilities even more environmentally friendly.
GreenTech symbolizes our continuous commitment, achievements, and passion
to provide customers with high quality products through the use of modern
development and production methods, responsible business practices and
initiatives that benefit not only the user, but the environment as well.
What is EC Technology?
EC technology is an important factor in our GreenTech philosophy. ebm-papst
EC fans use permanent magnet external rotor DC motors with fully integrated
electronic commutation (EC) and AC to DC power conversion. EC motors give
the flexibility of connecting to AC mains with the efficiency and simple speed
control of a DC motor. With EC fans, the user benefits from the innovative
commutation without wear-and-tear on the motor. The EC motor compares
to the direct current shunt-wound motor except that the magnetic field is
generated by permanent magnets inside the rotor.
With this technology, EC motors and fans can be easily controlled, are
maintenance-free, offer outstanding efficiency and have a considerably long
service life. The variable speed range possible in EC technology makes using a
multitude of individual models a thing of the past.
Our R&D efforts are not only focused on saving energy. In terms of air
performance and low noise, our products exceed the toughest specifications.
EC technology pays off for every owner or operator, while conserving precious
energy resources. When you use intelligent ebm-papst EC technology in your
applications, everyone wins - companies, customers, and the environment.
Airflow measurement using instrumented inlet rings
ebm-papst offers a simple airflow measurement technique for backward-
curved centrifugal fans using modified versions of inlet rings (IR) typically
used with these fans to maximize performance. The technique is based
on the Bernoulli and Continuity equations, which allow calculation of
flow through a converging nozzle based upon measurement of the static
pressure drop across the nozzle.
The application is of the form Q = 9.29k
•
Q = airflow in CFM
k = nozzle calibration factor
∆P
= static pressure drop across the nozzle in inches H
2
O
s/
•
P, where:
s
= standard air density of .075 lbs/ft
= actual air density in lbs/ft
3
3
The calibration factor "k" has been empirically determined for each
IR at standard air density of .075 lbs/ft
3
. Large variations from
this air density can effect the measurement and can be taken into
account using the
s/
ration, otherwise this term can be dropped
from the equation.
Two types of instrumented inlet rings are available for each
impeller size. One type uses a single pressure tap positioned
near the discharge end of the IR. The 2nd type uses four pressure
taps spaced along the circumference of the IR, connected with
tubing to form a piezometer ring. The piezometer ring averages
the static pressure measurements around the circumference of
the IR to provide a more accurate flow measurement in case of
uneven pressure distribution around the inlet. In either case, the
customer connection on the inlet ring is to a single pre-mounted
tube connector, suitable for pneumatic tubing with an internal
diameter of 4 mm. This connection should run to the low pressure
side of a differential pressure transducer (DPT), while the pressure
tap in front of the IR is connected to the high pressure side of the
DPT. If the DPT is mounted near the front of the IR but out of the
airstream, then the high pressure tap on the DPT is suitable and no
additional pressure tap is needed.
4
5
Inlet Ring Part Numbers
Instrumented Inlet Rings
Inlet Ring Part Numbers
Find the proper instrumented inlet ring P/N based on the impeller size and type (e.g., 3D EC). Choose the P/N for either the inlet ring with a single pressure
tap or for the version with multiple taps connected in a piezometer ring. In cases where there are multiple listings for a single impeller size, please discuss the
choice of the correct inlet ring with an ebm-papst applications engineer.
Select Pressure Transducer Range
It's important to the accuracy of the flow measurement to select a differential pressure transducer (DPT) with a range appropriate to the expected pressure
differential. It's best to choose a DPT with a range that exceeds the maximum expected pressure differential by a small safety margin. Excessive range will
impact the flow measurement accuracy because the DPT accuracy is typically specified as a percent of full scale.
To find the proper pressure transducer range:
1. Determine the maximum CFM flow rate expected from the fan over its operating range as installed in the application. If this info isn't available, use the free
airflow as provided in the fan specification.
2. Use Chart 1 to find the pressure differential in inches w.g. for given flow and impeller size.
Inlet Rings
Size (mm)
250
250
250
280
280
280
310
310
310
310
310
355
355
355
355
400
400
400
450
450
450
450
500
500
560
630
710
Impeller & fan type
2D AC/EC
2D EC
2D EC + airfoil
2D AC/EC
2D EC
2D EC + airfoil
3D AC/EC
3D AC/EC
2D EC
2D EC
airfoil
3D AC/EC
3D AC/EC
2D EC
2D EC + airfoil
3D AC/EC + 2D AC
2D EC
2D EC + airfoil
2D AC/EC
3D AC/EC
2D EC
2D EC + airfoil
2D EC
2D EC + 3D AC/EC + airfoil
2D EC + 3D AC/EC + airfoil
3D AC/EC + airfoil
3D AC/EC + airfoil
Part no. w/o pressure tap
(for dimensional reference only)
3. Select a differential pressure transducer with an appropriate range based on the pressure differential determined in step 2.
Part no. with 1 pressure tap
25002-2-4013
25040-2-4013
25075-2-4013
28002-2-4013
28040-2-4013
28075-2-4013
31100-2-4013
31110-2-4013
31060-2-4013
31575-2-4013
31475-2-4013
35600-2-4013
35610-2-4013
(1)
35540-2-4013
35675-2-4013
54515-2-4013
40040-2-4013
40075-2-4013
54514-2-4013
64015-2-4013
45040-2-4013
45075-2-4013
54518-2-4013
64025-2-4013
64030-2-4013
64040-2-4013
71075-2-4013
Part no. with piezometer ring
25001-2-4013
25030-2-4013
25080-2-4013
28001-2-4013
28030-2-4013
28080-2-4013
31080-2-4013
31090-2-4013
(1)
31040-2-4013
31580-2-4013
–
35580-2-4013
35590-2-4013
(1)
35530-2-4013
35680-2-4013
54500-2-4013
40030-2-4013
40080-2-4013
54510-2-4013
64005-2-4013
45030-2-4013
45080-2-4013
54516-2-4013
64002-2-4013
64001-2-4013
64000-2-4013
71080-2-4013
k-value
69
67
70
88
87
93
120
103
108
116
116
155
138
141
183
161
188
217
214
225
240
265
281
348
438
545
0.000
1
0
96359-2-4013
25020-2-4013
25070-2-4013
96360-2-4013
28020-2-4013
28070-2-4013
31050-2-4013
31051-2-4013
31020-2-4013
31570-2-4013
31470-2-4013
35560-2-4013
35561-2-4013
35520-2-4013
35670-2-4013
54476-2-4013
40020-2-4013
40070-2-4013
54478-2-4013
63045-2-4013
45020-2-4013
45070-2-4013
54480-2-4013
63072-2-4013
63071-2-4013
63070-2-4013
71070-2-4013
Chart 1 - Pressure Differential vs Air Flow for Available Impeller Sizes
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