Dover PSG Griswold 811SP Series Instruction manual

GRS-18000--E-01
Where Innovation Flows
IOM
INSTALLATION, OPERATION
& MAINTENANCE MANUAL
811SP SERIES
Self-Priming Centrifugal Pumps

GRS-18000-E-01 2
811SP SERIES
TABLE OF CONTENTS
INTRODUCTION........................................................................................................................................... 3
811SP Series Manual Note....................................................................................................................... 3
Safety ........................................................................................................................................................ 3
General Safety .......................................................................................................................................... 3
Product Description ................................................................................................................................... 3
INSTALLATION............................................................................................................................................ 4
OPERATION ................................................................................................................................................. 4
Priming the Pump...................................................................................................................................... 4
REPAIR, ROUTINE MAINTENANCE, SPARE PARTS............................................................................... 5
APPENDIX .................................................................................................................................................... 6
Impeller Clearance Chart .......................................................................................................................... 6
Pressure-Temperature Ratings................................................................................................................. 6
Interchangeability ...................................................................................................................................... 7
811SP Series Small Frame Group Pump Cross-Sectional ...................................................................... 8
811SP Series Medium Frame Group Pump Cross-Sectional .................................................................. 8
811SP Series Large Frame Group Pump Cross-Sectional ..................................................................... 9
Parts and Material Composition ............................................................................................................. 10

GRS-18000-E-01 3
811SP SERIES
INTRODUCTION
811SP Series Manual Note
This manual is intended to be a supplemental
manual to the Griswold 811 ANSI Series
manual. This manual covers the items specific to
the 811SP Series pump line and for topics
common to both the 811 ANSI Series and
811SP Series pump lines (such as baseplate
installation, coupling alignment procedures,
etc.), see the Griswold 811 ANSI Series IOM for
details, available on our website:
https://www.psgdover.com/docs/default-
source/griswold-docs/ioms/811_iom.pdf.
Safety
Failure to read and comply with installation,
operation and maintenance instructions found in
the Griswold 811 ANSI Series manual will void
the responsibility of the manufacturer and may
result in bodily injury or equipment damage.
The Griswold 811 ANSI Series manual and the
811SP Series manual should be kept as a part
of the permanent records for the pump and
should be readily accessible as a reference to
anyone working on the pumping unit.
These pumps have been designed for safe and
reliable operation when properly used and
maintained in accordance with instructions
contained in both manuals. A pump is a
pressure containing device with rotating parts
that can be hazardous. Operators and
maintenance personnel must realize this and
follow safety measures. Griswold Pump
Company shall not be liable for physical injury,
damage or delays caused by a failure to observe
the instructions in the 811 ANSI Series and
811SP Series manuals.
Throughout the 811 ANSI Series manual, the
words WARNING, CAUTION, and NOTE are
used to indicate procedures or situations, which
require special operator attention.
For full details, see the Griswold 811 ANSI
Series IOM, available on our website:
https://www.psgdover.com/docs/default-
source/griswold-docs/ioms/811_iom.pdf
General Safety
•Do not allow pump, piping or other
components containing water to freeze.
Freezing may damage the components,
leading to possible injury or flooding
•Periodically inspect pump and associated
components
•Wear safety glasses when working on
pumps
•Keep work area clean, uncluttered and with
adequate lighting
•Ensure pump and components cannot roll or
fall over, possibly causing bodily injury or
property damage
•Allow all system and pump components to
cool before handling
•Disconnect and lock out power before
servicing the pump
•Check explosion risk before spark inducing
work, such as welding, using electric power
tools, grinders, etc.
Product Description
The Griswold 811SP Series pump is a
centrifugal single-stage self-priming pump which
has all back-pull-out components in common
with the Griswold 811 ANSI Series product line.
The product line maintains consistent footprints
and hold-down bolt patterns with the Griswold
811 ANSI Series. The pump has a back-pull-out
design, meaning that it is possible to remove the
pump back-end without disturbing the case and
piping, which can facilitate easier maintenance
of the pump. Each case is designed with an
integral priming chamber that supplies liquid to
the impeller during pump priming, which allows
the pump to draw a vacuum in the suction line,
drawing liquid up the suction pipe and ultimately
into the pump resulting in full prime.
Since the 811SP Series utilizes the full back-end
of the Griswold 811 ANSI Series pumps, the
only components unique to the Griswold 811SP
Series are the case and, if applicable, spacers to
adjust for a larger pump centerline height.
See Figure 1 – 811SP Series Case Part
Features for more details on page 4.

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811SP SERIES
Figure 1 – 811SP Series
Case Part Features
INSTALLATION
For installation instructions, including baseplate
installation, grouting and shaft alignment
procedures, see the Griswold 811 ANSI Series
IOM: https://www.psgdover.com/docs/default-
source/griswold-docs/ioms/811_iom.pdf, pages
6-15.
OPERATION
For pump operation instructions, including
setting the impeller clearance, proper lubrication,
starting the pump and troubleshooting, see the
Griswold 811 ANSI Series IOM, pages 16-19.
When setting the impeller clearance of an
811SP Series pump, Table B in the Appendix of
this document is to be used to determine the
target assembled impeller clearance. With this
value, the Impeller Clearance Adjustment
procedure found in the Appendix of the Griswold
811 ANSI Series IOM should be used.
The following section on priming the pump is
unique to the 811SP Series and replaces the
“Priming” section of the Griswold 811 ANSI
Series IOM.
Priming the Pump
The Griswold 811SP Series pumps are self-
priming and do not require a foot valve or a
manual priming procedure prior to startup, aside
from the initial charge of liquid for the case
priming chamber. During the priming stage, the
self-priming pump transfers air from the suction
side to the discharge side of the pump, drawing
a vacuum on the suction side and lifting the
liquid up the suction pipe. An accumulation of air
in the discharge piping hinders this process and
can stall priming progress. Therefore, in some
installations an air vent or permanent bypass
line from the discharge piping is required to vent
the accumulating air pressure.
See Figure 2 – 811SP Series Priming with By-
Pass Line.
Figure 2 – 811SP Series
Priming with By-Pass Line
Steps to Prime the 811SP Series Pump:
1. Re-check motor to ensure that the
connections are correct. Check that thermal
overload relays are properly sized and set
for operation
2. Verify that the coupling guard and all other
safety-related devices and instrumentation
are in place and in working order
3. Initially fill the pump with enough liquid to fill
the priming chamber (see Table A)
4. Check that any suction isolation valves are
completely open. Never use the suction
Top
Centerline
Discharge
Integral
Priming
Chamber
Self-Venting
Design
Elevated
Suction
Centerline for
Self-priming
By-pass Line

GRS-18000-E-01 5
811SP SERIES
valve to control flow as this can/will lead to
“starving” the pump, causing cavitation and
vibration that can result in damage to the
pump
5. Ensure that all flushing and cooling lines, as
applicable, are attached and operational.
6. Open vent / by-pass line valve (if applicable)
7. Depending on the system design, either
adjust the discharge valve to be “cracked”
open or keep it fully closed during priming
8. Start the driver
9. Listen for any unexpected noise and check
for any significant vibration or indications of
binding. If any of these are observed, the
pump should be stopped immediately, and a
thorough check of the installation should be
made to determine the cause. Correct any
fault(s) prior to re-starting the pump.
10. Depending on the quantity of air that needs
to be evacuated from the suction piping and
the suction lift height, it can take up to
several minutes to achieve full prime of the
suction piping and pump. Contact either
Griswold Pump Company or your local
authorized Griswold representative for
additional information in estimating suction
system priming times.
11. Monitor the gauges on the pump to
determine when full prime has been
achieved. Gradually adjust the discharge
valve to allow the system to fill and stabilize
at the pump’s operating capacity and head.
Model Initial Charge Volume
(in3)
811SP 1.5x1-6 310
811SP 1.5x1.5-8 390
811SP 2x2-10 1100
811SP 3x3-10 1160
811SP 4x4-10 1550
811SP 3x3-13 1330
811SP 4x4-13 1410
811SP 6x6-13 2980
Table A – 811SP Series
Minimum Initial Charge Volumes
NOTE: During the priming process the suction
liquid level is drawn up into the pump as the
pump evacuates the air out of the suction line.
Therefore, care must be taken to ensure that no
air is leaking into the suction line, otherwise the
pump will not achieve prime.
REPAIR, ROUTINE MAINTENANCE,
SPARE PARTS
For instructions on pump repair, routine
maintenance, and spare parts, see the Griswold
811 ANSI Series IOM:
https://www.psgdover.com/docs/default-
source/griswold-docs/ioms/811_iom.pdf, pages
21-37.

GRS-18000-E-01 6
811SP SERIES
APPENDIX
Impeller Clearance Chart
The following table, Table B, of impeller clearances is to be used when setting the impeller clearance of
an 811SP Series pump.
Pumpage Temperature
Pump Frame Size
811SP Small Frame
811SP Medium Frame,
811SP Large Frame
-20°F to 200°F 0.010" -20°F to 200°F
Up to 250°F 0.011" Up to 250°F
Up to 300°F 0.012" Up to 300°F
Up to 350°F 0.014" Up to 350°F
Up to 400°F 0.015" Up to 400°F
Up to 450°F 0.016" Up to 450°F
Up to 500°F 0.017" Up to 500°F
Table B – 811SP Series Impeller Clearances at Ambient for Various Service Temperatures
Pressure-Temperature Ratings
Chart A specifies the maximum allowable working pressure for 811SP Series pumps given the pump
material of construction and the pumping temperature.
The maximum allowable working temperature for 811SP Series pumps is 500°F.
Chart A – 811SP Series Maximum Allowable Working Pressure vs. Temperature

GRS-18000-E-01 7
811SP SERIES
Interchangeability
Griswold 811SP Series pumps are designed to be easy to maintain and repair. Many of the pump
components can be interchanged between the models in order to maximize interchangeability with the
portfolio to help simplify inventory and reduce costs.

GRS-18000-E-01 8
811SP SERIES
811SP Series Small Frame Group Pump Cross-Sectional
811SP Series Medium Frame Group Pump Cross-Sectional
LG1901 Rev A
LG1902 Rev A

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811SP SERIES
811SP Series Large Frame Group Pump Cross-Sectional
LG1903 Rev A

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811SP SERIES
Parts and Material Composition
Item
No
Qty Part Name
ALL
CD4MCuN
ALL
316 SS
ALL
Alloy 20
100
1
Casing
CD4MCuN
316 SS
Alloy 20
101
1
Impeller
CD4MCuN
316 SS
Alloy 20
105
1
Lantern Ring
Glass-Filled TFE
106 1 Packing TFE SIL C-8201
Acid Rest. TFE
107
1
Packing Gland
Alloy 20
316 SS
Alloy 20
108
1
Frame Adapter
Ductile Iron
112
1
Outboard (Thrust) Bearing
Double-Row Angular Contact*
122
1
Shaft – Less Sleeve (Optional – Not Shown)
Alloy 20
316 SS
Alloy 20
1
Shaft, Sleeved
SAE4140
126
1
Shaft Sleeve
Alloy 20
316 SS
Alloy 20
134
1
Bearing Housing
Cast Iron
136
1
Lock Nut / Lock Washer
Steel
168
1
Inboard (Radial) Bearing
Single-Row Deep Groove
184
1
Stuffing Box
CD4MCuN
316 SS
Alloy 20
228
1
Frame
Cast Iron
240
1
Spacer, Frame Foot Spacer**
Steel
241
1
Frame Foot, Small Frame
Steel
1
Frame Foot, Medium\Large Frame
Cast Iron
250
1
Mechanical Seal Gland
Alloy 20
316 SS
Alloy 20
319
1
Sight-Oil Gauge
Cadium Plated
332A
1
Labyrinth Oil Seal (Outboard)
Bronze (Optional Carbon-Filled PTFE)
333A
1
Labyrinth Oil Seal (Inboard)
Bronze (Optional Carbon-Filled PTFE)
351
1
Casing Gasket
Aramid Fiber with EPDM Rubber
353
4
Gland Stud
316 SS
355
4
Gland Nut
304 SS
358A
1
Casing Drain Plug
316 SS
316 SS
Alloy 20
360
1
Gasket, Medium\Large Frame-to-Adapter
Vellumoid
370
6
Bearing Housing Hex Bolt
Steel
412A
1
Impeller O-Ring
Glass-Filled TFE
418
3
Casing Jacket Screw
Steel
469B
2
Dowel Pin, Medium\Large Frame (Not Shown)
Steel
496
1
Bearing Housing O-Ring
Buna Rubber
LG1904 Rev A
*811SP Large Frame features Duplex Angular Contact
**Frame Foot spacer only used on 6x6-13

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811SP SERIES
NOTES
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PSG
22069 Van Buren Street
Grand Terrace, CA 92313-5651 USA
P: [phone]
psgdover.com
Copyright 2021 PSG®, a Dover®Company
PSG®reserves the right to modify the information and illustrations contained in this document without prior notice. This is a non-contractual document.
GRS-18000-E-01
Where Innovation Flows