Amico NFPA Triplex RVL Modular Stack Mount - Manual (Page 9)

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Characteristics
* Indicates the Pump is highly recommended where this characteristic is desired.
** Indicates the sizing as reported is expandable and only the minimum is shown.
(1) Pumps can be operated at higher elevations if a lower ultimate vacuum is accepted or life of vanes is reduced
(2) Lubricated rotary vane machines may not easily tolerate being undersized
(3) Oil free rotary vanes use graphite vanes which are not generally suitable with elevated oxidizer concentrations. Some manufacturers
claim they can be rendered
(4) In the
O
2 Assured version
Contact-less Claw Water Seal
Liquid Ring
Lubricated
Rotary Vane
Oil-free
Rotary Vane
7
Reliability when
maintained
Longevity of Pump
Operating Cost
(Utilities)
Altitude
Tolerance for
Carryover
Maintenance
Best Feature
Worst Characteristic
Sizing Error Tolerance
Suitability for WAGD
Ambient Temperature
dB at 10 hp
Top Vacuum
Good
Good
Low
Poor (1)
Poor
Low Easy*
Low operating cost
Excellent choice for a
dedicated anaesthesia
evacuation system
High initial cost
Higher noise level in
comparison to other
systems
Higher heat load
or higher running
temperature
Good
Excellent (4)
Limit of 100 o F
87
22 inHgV**
Good
Good
Low
No limit
Poor
High, can be
complex
High vacuum
Long vane life
No water and
sewage costs
Low noise level
Air cooled design
No rust and scale
problems
Low operating
costs
High Maintenance
Unsuitable for a
dedicated
anaesthesia
evacuation system
Cannot take a slug
of water
Poor (2)
DO NOT USE
Limit of 100 o F
83
29 inHgV
Moderate
Moderate
Moderate
Poor (1)
Poor
Moderate, easy
Low/ Easy
Maintenance
Cannot take a slug
of water
Much shorter vane
life compared with
lubricated pumps
Lower capacity
per horsepower in
compared to other
designs
Good
Poor (3)
Limit of 100 o F
78
23 inHgV
Excellent
Excellent
High without
recirculation
Good
Excellent
Low, can be complex
Pump life, ambient
temperature indifferent
Low operating cost
Capable of taking slugs
of water
Excellent choice for a
dedicated anaesthesia
system
Dependence on a
reliable supply of water
Good water quality is
crucial to avoid
premature failures due
to scale build-up
Excellent
Excellent
No limit if water is cool
76
26 inHgV
Figure 3: Technology Comparison Chart