The
ANSI Standard
adopted
by NFPA
20 assures
a quality
design
to provide
years
of reliable
operation
.:
The
casings
provide
centerline
discharge
eliminating
the need
for reverse
rotation
considerations.
The casings
are high
quality
cast iron
with tensile
strength
of 40,000
psi
.:
The
standard
bronze
impeller
is a single-suction
design
keyed
to the
shaft
and secured
by an
impeller
bolt.
All impellers
are dynamically
balanced
and have
optional
wear rings
.:
Grease-lubricated,
deep-grove
ball bearings
are provided
in a regreasable
bearing
housing.
Bearing
life provides
a L10
minimum
life of
20,000
hours
.:
Bronze
wear rings
provide
sealing
for minimum
recirculation
between
the suctions
and discharge
areas
of the
casing.
The rings
are staked
by stainless
steel
pins to
prevent
their
rotation
.:
Packed
with non-asbestos
packing
with bronze
glands
Copyright
2006-2007.
National Fire Fighting Manufacturing FZCO(NAFFCO), All
rights reserved
NAFFCO reserves the right to modify specifications without
prior notice.
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