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GRISWOLD
PUMP COMPANY |
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ANSI
PROCESS PUMPS |
| Griswold
Model 811 ANSI Centrifugal Pumps |
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Process Industry Applications |
Griswold
Pump offers the Model 811
, a quality engineered centrifugal pump that meets ANSI
standards for the chemical process industry. The Model 811 is
designed for exceptional performance and reliability under a
wide variety of fluid handling conditions.
The full open impeller , heavy casing , and other design features
allow the Model 811 to continue performing long after other
ANSI pumps wear out or break down. |
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GRISWOLD'S Model 811 ANSI Standard Dimensiosns |
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Replaceable Adapters |
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Extra
Heavy Casings |
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Standard on all models. Bearing remains closed when adapter
is removed, preventing bearing contamination. |
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300 lb.
ANSI thickness extends life under corrosive
and erosive conditions when used on 150 lb.
ANSI applications. |
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Oil
Lubrication Standard |
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Replaceable Shaft Sleeve Standard |
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- Large sight glass for checking oil level.
- Cooling jacket to control bearing temperature on high-temperature
applications.
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- Hook-type sleeve is free to expand with tem-perature
changes.
- Sleeve simplifies maintenance. Sealing surface
can be renewed without shaft and bearing disassembly.
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Shaft
and Bearings |
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Fully
Open Impeller |
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Engineered
for long bearing and seal life under extreme hydraulic loads. |
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Includes
back pump-out vanes. Open construc-tion
for low-thrust loads. Adjustable to original performance.
Open impeller is far superior to closed impeller for corrosive
and erosive fluids. |
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External
Clearance Adjustment |
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Impeller
Mounting |
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High
performance easily maintained without shimming. Open-end wrench
quickly sets or maintains clearances. Adjustment for wear area
loss does not require shop maintenance as with closed
impellers. |
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Self-tightening.
No bolt to corrode or gasket to leak.
Metal-to-metal contact assures true running and proper transmittal
of torque and alignment. Contained o-ring provides positive
seal for liquids. |
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Bearing
Frame |
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Sealing
Flexibility |
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Remains
sealed when adapter is removed.
Extra assemblies can be maintained seal-ready for many size
adapters. |
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Seal
chambers and stuffing boxes machined for packing, component
seals or cartridge seals. |
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GRISWOLD 811
LF FOR LOWFLOWS
A N S I P R O C E S S P U M P S D
E S I G N E D F O R L
O W F L O W S E R V I C E S.
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INCREASED
CAPABILITY
FOR REDUCEDVOLUMES
Standard ANSI pumps (with expanding
style volute casing) are not designed for
low flow, high head applications: the
excessive radial loads and shaft vibration
experienced can shorten bearing and seal
life. Griswold’s Model 811LF
series is
designed with a circular concentric casing
in conjunction with a radial vane
impeller to reduce those excessive radial
loads and minimize shaft deflection, thus
extending MTBPM. |
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1.CIRCULAR
CONCENTRIC VOLUTE CASING:
The fully machined concentric volute reduces excessive
radial loads experienced in low flow, high head
applications. Shaft vibration and deflection is
minimized,
extending bearing and mechanical seal life.
Class 150 raised face flanges are standard
with the Model 811LF series for
positive sealing.
Class 300 raised face flanges are available
as an option.
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2. LOW
FLOW RADIAL VANE IMPELLER:
Griswold’s radial vane impellers are specially
designed to reduce the thrust load and seal
chamber pressure normally associated with
low flow applications. When operating in
reduced volume conditions, the low flow
impeller’s vanes provide better hydraulic control
than traditional ANSI impellers. Balance
holes reduce both axial thrust and seal chamber
pressure, extending bearing and seal life. |
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3. 811LF PERFORMANCE:
With a traditional ANSI pump, throttling
or recirculating flow to attain low flow conditions
causes excessive radial load and shaft deflection—all
of which can result in premature failure to bearings
and mechanical seals.
Griswold 811LF pumps feature flow capacities as
low as 4 GPM, and heads as high as 550'—low flow/high
head performance you can count on to further extend
your MTBPM. |
4. RETROFITTING:
Griswold Model 811LF pumps are ANSI dimensional,
so they can be installed without piping or base
changes to existing equipment. In fact, since
all other parts and features are identical/interchangeable
within the entire
811 ANSI line, the 811LF case and impeller can
be
easily retrofitted to an existing Griswold pump
as well as 100,000s of other ANSI pumps already
in service! |
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E, F & G SERIES
END-SUCTION CLOSE COUPLED OR FRAME MOUNTED CENTRIFUGAL PUMPS |
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E,F,&
G Series Close Coupled |
Designed for capacities up to 3000
GPM and heads to 330 feet, GRISWOLD E, F & G Series centrifugal
pumps can be close coupled, flexible-coupled to electric motors,
engines or steam turbines. They can also be belt driven. |
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E,F,&
G Series Frame Mounted |
E, F & G Series pumps are ideal for a wide
variety of liquid pump applications, including crop and turf
irrigation, water parks, swimming pools, fountains, air conditioning,
water supply systems, and many other general industrial applications.
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Griswold Vertical Turbine Pumps |
Submersible
Turbine Pumps |
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Griswold Vertical Turbine
Pumps are available with two types of pump drives vertical hollow
shaft electric motor drive or right angle gear drive. Our
turbine pumps offer you a choice of two types of lubrication
either a water lubricated line shaft or an oil lubricated line
shaft construction. |
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Submersible
Turbine Pumps
are designed for a wide variety of applications farm, home,
fountains, irrigation, industry, municipal and commercial use. |
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| Self-Priming
Centrifugal Pumps |
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GRISWOLD self-priming centrifugal pumps are designed
for a variety of applications. For example, they can be used
for draining barges and tank cars dewatering mines or underground
storage facilities. Homeowners use them
for sprinkler systems and swimming pools. When it comes
to moving water from one place to another, there’s no end to
the jobs that a GRISWOLD Self-Priming Pump can handle! |
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