Post on 29-Mar-2018
L_700 Vectra XLLiquid Ring Vacuum Pumps and Compressors
L_Series
2 nash_elmo Industries L_700 Vectra XL
L_700 Vectra XL – World class design & performance
The liquid ring pumps produced by Nash and Siemens (elmo) have been known
for nearly 100 years as powerhouses, designed to stand up to the rigorous, non-
stop demands of the harshest industrial environments. With the formation of
nash_elmo in 2002, we have combined our product lines to enable us to offer the
highest performance, reliability and efficiency in every product class. The L_700
Vectra XL meets that standard.
The L_700 Vectra XL vacuum pumps and compressors are created specifically for the
chemical processing industry. They combine the highest standard of reliability
with a new level of ingenuity. nash_elmo employs advanced design technologies
to achieve optimum performance and unprecedented production efficiencies.
Production efficiencies ultimately passed on to our customers in the form of
unique value and unequaled performance.
The L_700 Vectra XL pumps have been designed from the ground up, based on cus-
tomer defined market requirements. The multidisciplinary design process relied on
input from R&D, manufacturing, marketing and most importantly our customers –
the chemical process engineers. The result: a revolutionary line of pumps tough
enough to be branded nash_elmo.
Durability is only one important aspect. All L_700 Vectra XL models incorporate a
simple modular concept with interchangeable parts that result in a high level of
adaptability. These pumps also include technological advancements such as a
patented new cone design and a new rotor configuration. The machines can be
used in applications discharging against positive back pressure.
nash_elmo L_700 Vectra XL pumps meet high combustible range standards and
are ATEX certified. These vacuum pumps and compressors are in accordance with
guideline 94/9/EG, category 1 and 2. Further on the L_700 Vectra XL was designed
with API 681 specifications in mind.
Overall, the L_700 Vectra XL models are the result of painstaking engineering
and the use of finite element analysis, which determines the most efficient
means to achieve the highest level of performance and the greatest
possible value. A world class design.
Operating level of the L_700 Vectra XL as
a vacuum pump, compressor or vacuum
pump against positive back pressure.
Compressor
0 PSIGbar abs.
453
Cap
acity
151
Atmospheric
VACUUM PUMP
0 133
in HgAmbar abs.
301000
Cap
acity
Vacuum pump
0
VACUUM PUMP
0 XXX
XXXXXX
XXXXXX
Qua
lity?
??
Vacuum pump against positiveback pressure
45 PSIG
Cap
acity
03 bar abs.33 mbar abs.
Atmospheric
XL
302
1 in HgA
3D CAD and finite element analysis
enabled nash_elmo engineering to
optimize the L_700 Vectra design.
nash_elmo Industries L_700 XL 3
XL 35
XL 45
XL 60
XL 80
XL 100
XL 130
XL 150
XL 250
XL 350
XL 500
0 500 1000 1500 2000 2500 3000cfm
L_700 Vectra XL pumps are ideally suited to handle a wide variety
of chemical processing applications, including:
� Reactor vacuum
� Vacuum distiller
� Evaporator vacuum
� VCM recovery
� Vacuum filtration
� Explosive & corrosive gas compression
� Solvent recovery
� Drying
� Extrusion
� Methane extraction & boosting
... and many others
L_700 Vectra XL Capacity range
The L_700 Vectra XL is a pump designed to stand up to the harsh
environments found in the chemical processing industries.
The L_700 Vectra XL is constructed of ductile iron and stainless steel.
It can accommodate a variety of mechanical seals and achieves higher
differential and hydrotest pressure ratings than our general industrial
models – the L_700 Vectra GL. While the L_700 Vectra XL incorporates
several unique parts for the chemical processing industry, the entire
Vectra line shares many common parts to provide maximum efficiency
and optimum value. Key elements of the design are the improved
cone angles, which decrease the size of the pump and nash_elmo's
patented Gas Scavenging Technology, which dramatically improves
pump performance at high vacuum levels.
We design and develop solutions engineered to your
individual needs. Contact us for further details.
4 nash_elmo Industries L_700 Vectra XL
ConeRotor
Universal
stuffing box
External
bearing
housing
L_700 Vectra XL – Vacuum technology for chemical processing
Inlet
Mechanical
seal
Vacuum range 0-29 in Hg vac. / to 33 mbar abs.
Mechanical seals* Single, double and cartridge
Differential pressure capability 30 psi / 2 bar
Compressor pressure 30 psig / 3 bar abs.
Hydrotest pressure 150 psig / 11 bar abs. standard
(225 psig / 16 bar abs. optional)
Construction material Ductile iron, stainless steel
Basic specifications
* Mechanical seals are standard on stainless steel XL 35 - XL 150 models.
Optional on others.
Suction
Discharge
nash_elmo Industries L_700 Vectra XL 5
Flange dimensions are to ANSI and ISO standards, respectively.
All dimensions are approximate.
Discharge
External
bearing
housing
L_700 Vectra XL Dimensions
Model Binches
Cinches
Dinches
Einches
Suction & dischargeflange connection
Ainches
XL 35 30XL 45 32
13 14 6 2 3-IN. FLG. 2-IN. FLG.
XL 60 36XL 80 39
17 16 7 2 3-IN. FLG.
XL 100 424-IN. FLG.
XL 130 4619 20 8 2 4-IN. FLG.
XL 150 47 22 22 9 2 6-IN. FLG. 4-IN. FLG.XL 250 55 24 27 12 3 6-IN. FLG. 6-IN. FLG.XL 350 64 29 31 14 3 8-IN. FLG. 6-IN. FLG.XL 500 72 35 37 16 4 10-IN. FLG. 8-IN. FLG.
Features Benefits
Compact design Less floor space required
External mechanical seals Flexibility & ease of maintenance
Direct drive speeds for For worldwide use
50/60 Hz motors
Extended pressure ratings Ability to handle tough applications
where backpressure is required
Conical design Better ability to handle water / particulate
slugs / residual gas compression
One moving part Long term reliability
Variable port design High efficiency
Patented gas scavenging Increased performance at high vacuum levels
Improved cone angle Reduced pump length
Optimized design using Extended scope of application
finite element analysis
Factory performance tested Trouble free start-up and operation
Backed by 2 year warranty Peace of mind
and over 100 years of vacuum
and compressed gas experience
Packaged systems – L_700 VectraPaks
Optional components:
� Inlet check valve
� Inlet isolation valve
� Vacuum relief valve
� Seal line isolation valve
� Shock arrestor pads
� Vacuum gauge
� Flow switch
� Vacuum receiver tank
� Adjustable frequency drives
Duplex combinations are avail-
able and packages may be
designed to meet other specific
requirements of your application.
If your requirements call for a packaged system, nash_elmo VectraPaks are preengineered, assembled
and piped – and they provide you with all the associated components for your application. Once-through,
partially recirculated and fully recirculated systems are available direct connected or v-belt-driven.
Generally, VetraPaks through size 250 are direct coupled and those in the larger sizes can be v-belt-driven.
Partially recirculated
system
Use
Where minimal contamination
problems exist and seal liquid
is plentiful.
Benefits
� Simplicity
� Low initial cost
� Lower seal liquid
consumption
Standard components
� Pump
� Base
� Motor / drive
� Seal water accessories
� Water trap silencer
Fully recirculated
system
Use
Where liquids and gases are
hazardous or toxic and where
contamination is a concern.
Benefits
� Low water consumption
(with air cooled heat
exchanger)
� Process gases
may be recovered
� Seal liquid contained and
isolated from non-
hazardous coolant systems
Standard components
� Pump
� Base
� Motor / drive
� Seal water accessories
� Separator
� Heat exchanger and
make up valve
6 nash_elmo Industries L_700 Vectra XL
Use
Where contamination is not a
problem and the supply of seal
liquid is plentiful.
Benefits
� Simplicity
� Lowest initial cost
Standard components
� Pump
� Base
� Motor / drive
� Seal water accessories
� Water trap silencer
Once-through system
Model Binches
Ainches
Cinches
XL 35 51 34 37XL 45 51 36 37XL 60 62 39 46XL 80 62 41 46XL 100 80 46 53XL 130 80 50 53XL 150 88 52 53XL 250 106 60 76XL 350 105 67 77XL 500 123 78 95
Model Binches
Ainches
Cinches
XL 35 56 30 46XL 45 56 30 46XL 60 69 35 53XL 80 69 35 53XL 100 67 41 60XL 130 74 41 60XL 150 82 43 54XL 250 95 53 76XL 350 N/A N/A N/AXL 500 N/A N/A N/A
L_700 Vectra XL direct-driven package dimensions L_700 Vectra XL belt-driven package dimensions
All dimensions are approximate.
nash_elmo Industries L_700 Vectra XL 7
For 100 years, we have been assisting our customers in making the right vacuum pump
or compressor choice. As your engineering partners, we will provide you with a
nash_elmo performance analysis which includes a review of your particular process
requirements, and provides you with alternative means for meeting your process needs.
We will supply engineering data and application information, along with short- and
long-term cost comparisons.
Beginning today and throughout the life of every nash_elmo system, our engineers are
ready to support you to meet your vacuum and compressor process tasks.
Factory tested
Before any nash_elmo vacuum pump or compressor is shipped out of our factory, it is
performance tested to meet the highest standards. We stand behind our products: every
nash_elmo L_700 Vectra XL comes with a TWO-YEAR WARRANTY. Our new test bay gives
us the capability to simulate nearly all real operating conditions for liquid ring pumps.
A global service network with local support
nash_elmo maintains service centers strategically located throughout the United States,
Europe and Asia. Each center is staffed by specialists with considerable application
know-how. They have original factory replacement parts in stock and are equipped
with the tools, fixtures and special machinery necessary for pump and compressor
repair. The nash_elmo commitment to service extends to its regional distribution cen-
ters and retailers. Stocked with inventories of factory parts and purchased components,
our distribution centers can deliver pumps and parts anywhere, any time. We are also
able to service vacuum pumps and compressors of other makes and models.
A new company, a unified vision
nash_elmo is more than a new company. It is the fusion of global leaders in the
development, design and application of vacuum and compressor system technology.
Our combined resources give us the ability to provide the best solution to any industrial
need virtually anywhere in the world. We are a company with an extensive range of
products and services and an unmatched reputation for reliability. Because nash_elmo
is a company with the resources to turn the most ambitious vision into reality and to
put that vision to work for you.
Commitment, reliability and worldwide support
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European Headquarters
Nuremberg, Germany
Katzwanger Straße 150
D-90461 Nürnberg
Tel.: +49 911 1454 0
Order-No: VNE:B-PB015-A1-AM
Printed in Germany
2238/019 10.0 / 04-2004
© 2004 All rights reserved
nash_elmo Industries
www.nash-elmo.com
info@nash-elmo.com
Corporate Headquarters
Trumbull, CT USA
9 Trefoil Drive
Trumbull, CT 06611-1330
Tel.: +1 800 553 6274
Other nash_elmo product lines
L_Series: Liquid Ring Pumps
D_Series: Dry Pumps
Robust technology for the highest demands and varied applications
Machines in the L_Series distinguish themselves through low opera-
ting temperatures and are suitable for handling splash water, steam
and condensates. They were developed for the toughest applications
and can safely and reliably extract or compress even explosive gas/
steam mixtures (ATEX-certified). Selection of a suitable operating
liquid enables the L_Series vacuum pumps and compressors to be
optimally integrated into processes. Thanks to their low operating
costs and extensive performance range up to 37,000 m3/h
(22,000 cfm), they excel in any application.
Proven, reliable and extremely quiet
Whether vacuum pumps, compressors or systems for conveying air,
gases or air/gas mixtures, the extensive range of products in the
G_Series meets the widest range of requirements. Thanks to their
variable voltage motors, many are usable anywhere in the world
without the need for conversion. In addition to their compact con-
struction, full UL/CSA certification and innovative design, G_Series
pumps and compressors offer a comprehensive power range up to
2,500 m3/h (1,470 cfm), maximum power density and a wide selec-
tion of accessories, including frequency converters.
Simple design for varied applications
The vane pumps in our V_Series are known for their robust design,
easy handling and long service life. Furnished with an extremely
sturdy metal coating as well as installation- and service-friendly
plug & play functionality, these high performance machines are
extremely quiet in operation, and can meet even the most chal-
lenging industrial demands while covering an impressive perfor-
mance range up to 4,000m3/h (2,350 cfm) and 10 bar g (145 psig).
High reliability with low operating costs
The dry-running vacuum pumps in our D_Series are explosion-proof
and were specially developed for production processes involving
sensitive materials. Throughout the entire process, they operate
condensation-free – and therefore corrosion-free – because there
are no operating fluids to mix with the process gases. As a result,
discharge gases can simply be collected and/or returned to the process.
There are no waste products. In addition, all pumps in the D_Series
are highly efficient and provide a constant suction capacity over an
extremely wide range of pressures with a performance range up to
to 2,200 m3/h (1,300 cfm).
V_Series: Vane Pumps
G_Series: Gas Ring Blowers