Features
- Non sparking ,Non electrical totally
safe in hazardous environments.
- Completely submersible.
- Can be run dry for extended periods
without damage.
- Self Priming
- No seals or glands to wear out.
- Long lasting wear parts.
- Fluids being pumped are not subjected
to high velocities.
- Discharge can be throttled until pump
stalls- without damage to pump - can be re-started again by opening
discharge valve.
- Easy to maintain - quick stripdown -
no special tools required.
- Can pump fluids which contain
particles.
- Can pump high viscosity fluids and
abrasive slurries.
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Abrasive Slurries
Sigmatool diaphragm pumps are well suited
for pumping of abrasive slurries. Centrifugal pumps generate high fluid
velocities
and
abrasive
slurry
rapidly
wears
these
types
of
pumps.
Sigmatool
diaphragm
pumps
are
recommended
for
such
applications
because
of
the
low
fluid
velocities
and
minimal
erosion
wear.
Moreover
there
are
no
high
speed
shaft
seals
or
packing
that
have
to
be
replaced
as
in
conventional
pumps.
Dredging
drilling
mud
and
similar
slurries
are
well
handled.
Viscous
Fluids
Another
application
where
Sigmatool
Diaphragm
Pumps,
are
well
suited
is
the
pumping
of
viscous
fluids
such
as
asphalt,
grout,
grease,
molasses
and
similar
media.
Viscosity
of
these
fluids
is
variable
depending
on
temperature
and
other
factors
and
therefore
the
energy
expanded
to
pump
them
also
varies.
In
a
pneumatically
driven
diaphragm
pump
the
output
is
totally
variable
making
it
ideally
suited
for
such
fluids.
In
fact
pneumatic
diaphragm
pumps
can
be
loaded
up
to
its
stalling
limits
without
any
pump
damage.
In
general
these
pumps
consume
less
power
than
displacement
pumps
in
similar
situations. |
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