The illustrations used in this manual are for identification
purposes only and cannot be used for ordering parts. Obtain a
parts list from the factory or a Viking® representative. Always
give complete name of part, part number and material with
model number and serial number of the pump when ordering
repair parts.
SERIES 724 AND 4724
SIZES F - G
FIGURE 1 - F, FH, G SIZE
SECTION TSM 211
PAGE 1 Of 8
ISSUE D
UNMOUNTED PUMPUNITS
PACKED MECH. SEAL
F724F4724
FH724FH4724
G724G4724
This maintenance bulletin deals exclusively with the bracket
mounted, Heavy-Duty, Stainless Steel Pumps. This type
of pump may be equipped with either a Multi-Ring stuffing
box with packing, called a Series 724 pump; or a Roto-Ring
mechanical seal, called a Series 4724 pump. The figure
number and letter prefix, which indicates the basic pump size,
make up the pump model.Both the packed and mechanical
seal pumps are similar in overall appearance to the pump
illustrated in Figure 1.
The pump or unit model and serial number which can be
found on a nameplate attached to the pump or base, are
important means of identification when ordering repair parts
or a replacement pump.
An outstanding feature of these pumps is the integral thrust
bearing which is easily adjusted and holds the rotor in a fixed
position. This bearing is a double row angular contact ball
bearing securely locked against a shoulder on the shaft by a
locknut. Adjustment of the thrust bearing, to properly position
the rotor, will be explained at the end of this article.
Units are designated by the
unmounted pump model
numbers followed by a letter
indicating drive style.
D = Direct Drive
V = V-Belt Drive
SPECIAL INFORMATION
DANGER !
Before opening any Viking pump liquid
chamber (pumping chamber, reservoir,
relief valve adjusting cap fitting, etc.)
Be sure:
1. That any pressure in the chamber has
been completely vented through the
suction or discharge lines or other
appropriate openings or connections.
2. That the driving means (motor,
turbine, engine, etc.) has been “locked
out” or made non-operational so that
it cannot be started while work is
being done on pump.
3. That you know what liquid the
pump has been handling and the
precautions necessary to safely
handle the liquid. Obtain a material
safety data sheet (MSDS) for the
liquid to be sure these precautions
are understood.
Failure to follow above listed
precautionary measures may result in
serious injury or death.
VIKING PUMP, INC.• A Unit of IDEX Corporation•Cedar Falls, IA 50613 USA
Page 2
SAFETY INFORMATION AND INSTRUCTIONS
IMPROPER INSTALLATION, OPERATION OR MAINTENANCE OF PUMP MAY CAUSE SERIOUS INJURY
OR DEATH AND/OR RESULT IN DAMAGE TO PUMP AND/OR OTHER EQUIPMENT. VIKING’S WARRANTY
DOES NOT COVER FAILURE DUE TO IMPROPER INSTALLATION, OPERATION OR MAINTENANCE.
THIS INFORMATION MUST BE FULLY READ BEFORE BEGINNING INSTALLATION, OPERATION OR
MAINTENANCE OF PUMP AND MUST BE KEPT WITH PUMP. PUMP MUST BE INSTALLED, OPERATED
AND MAINTAINED ONLY BY SUITABLY TRAINED AND QUALIFIED PERSONS.
THE FOLLOWING SAFETY INSTRUCTIONS MUST BE FOLLOWED AND ADHERED TO AT ALL TIMES.
Symbol
Legend :
!
!
!
!
!
WARNING
!
WARNING
Danger - Failure to follow the indicated
instruction may result in serious injury
!
or death.
BEFORE opening any liquid chamber (pumping
chamber, reservoir, relief valve adjusting cap fitting,
etc.) be sure that :
● Any pressure in the chamber has been completely
vented through the suction or discharge lines or
other appropriate openings or connections.
● The pump drive system means (motor, turbine,
engine, etc.) has been “locked out” or otherwise
been made non-operational so that it cannot be
started while work is being done on the pump.
● You know what material the pump has been
handling, have obtained a material safety data
sheet (MSDS) for the material, and understand
and follow all precautions appropriate for the safe
handling of the material.
BEFORE operating the pump, be sure all drive guards
are in place.
DO NOT operate pump if the suction or discharge
piping is not connected.
DO NOT place fingers into the pumping chamber or
its connection ports or into any part of the drive train
if there is any possibility of the pump shafts being
rotated.
DO NOT exceed the pumps rated pressure, speed, and
temperature, or change the system/duty parameters
from those the pump was originally supplied, without
confirming its suitability for the new service.
BEFORE operating the pump, be sure that:
● It is clean and free from debris
● all valves in the suction and discharge pipelines
are fully opened.
● All piping connected to the pump is fully supported
and correctly aligned with the pump.
● Pump rotation is correct for the desired direction
of flow.
WARNING
WARNING
!
WARNING
!
!
!
WARNING
!
WARNING
Warning - In addition to possible serious
injury or death, failure to follow the
indicated instruction may cause damage
to pump and/or other equipment.
INSTALL pressure gauges/sensors next to the
pump suction and discharge connections to monitor
pressures.
USE extreme caution when lifting the pump. Suitable
lifting devices should be used when appropriate. Lifting
eyes installed on the pump must be used only to lift
the pump, not the pump with drive and/or base plate.
If the pump is mounted on a base plate, the base plate
must be used for all lifting purposes. If slings are used
for lifting, they must be safely and securely attached.
For weight of the pump alone (which does not include
the drive and/or base plate) refer to the Viking Pump
product catalog.
DO NOT attempt to dismantle a pressure relief valve
that has not had the spring pressure relieved or is
mounted on a pump that is operating.
AVOID contact with hot areas of the pump and/or
drive. Certain operating conditions, temperature
control devices (jackets, heat-tracing, etc.), improper
installation, improper operation, and improper
maintenance can all cause high temperatures on the
pump and/or drive.
THE PUMP must be provided with pressure protection.
This may be provided through a relief valve mounted
directly on the pump, an in-line pressure relief valve,
a torque limiting device, or a rupture disk. If pump
rotation may be reversed during operation, pressure
protection must be provided on both sides of pump.
Relief valve adjusting screw caps must always point
towards suction side of the pump. If pump rotation is
reversed, position of the relief valve must be changed.
Pressure relief valves cannot be used to control pump
flow or regulate discharge pressure. For additional
information, refer to Viking Pump’s Technical Service
Manual TSM 000 and Engineering Service Bulletin
ESB-31.
THE PUMP must be installed in a matter that allows
safe access for routine maintenance and for inspection
during operation to check for leakage and monitor
pump operation.
SECTION TSM 211ISSUE DPAGE 2 OF 8
Page 3
SPECIAL INFORMATION
ROTATION: Viking pumps operate equally well in a clockwise
or counterclockwise rotation. Shaft rotation determines which
port is suction and which is discharge. Port in area where
pumping elements (gear teeth) come out of mesh is suction
port.
PRESSURE RELIEF VALVES:
1. Viking pumps are positive displacement pumps and
must be provided with some sort of pressure protection.
This may be a relief valve mounted directly on the pump,
an inline pressure relief valve, a torque limiting device, a
rupture disk, or other device.
2. There are relief valve options available on those pump
models designed to accept a relief valve.
3. If pump rotation is reversed during operation, pressure
protection must be provided on both sides of pump.
4. Relief valve adjusting screw cap must always point
towards suction side of pump. If pump rotation is
reversed, remove pressure relief valve and turn end for
end. Refer to Figure 1, page 1 and Figures 2 and 3,
page 3.
5. Pressure relief valves should not be used to control
pump flow or regulate discharge pressure.
For additional information on pressure relief valves, Refer
to Technical Service Manual TSM000 and Engineering
Service Bulletin ESB-31.
MAINTENANCE
The small Stainless Steel series 724 and 4724 pumps are
designed for long, trouble-free service life under a wide variety
of application conditions with a minimum of maintenance,
however, the following should be considered.
1. LUBRICATION - Periodic external lubrication should
be applied slowly with a hand gun at all lubrication
fittings provided. A good quality of general purpose
grease is satisfactory in the majority of cases, however,
applications involving very high or low temperatures may
require other types of lubricants. Suggested frequency
of lubrication is once every 500 hours of operation. Do
not over-grease. Consult the factory if you have specific
lubrication questions.
2. PACKING ADJUSTMENT - New packed pumps, (Series
724) generally require some initial packing adjustment
to control leakage as packing “runs-in”. Make initial
packing adjustments carefully and do not over tighten
the packing gland. After initial adjustment, occasional
inspection will reveal the need for packing gland
adjustment and/or replacement of the packing. See
instructions in disassembly and reassembly regarding
repacking the pump.
3. END CLEARANCE ADJUSTMENT - After long
term operation it is sometimes possible to improve
the performance of the pump, without major repair,
through adjustment of end clearance of the pump.
Refer to instructions under End Clearance, page 6, for
information regarding this procedure.
4. RELIEF VALVE - If your pump is equipped with a relief
valve, adjustment can be made as follows. Remove the
adjusting screw cap, loosen the locknut and turn in the
adjusting screw to increase the pressure and turn-out
to decrease the pressure. If the pump is not producing
the rated capacity, adjustment of the relief valve may be
necessary.
5. CLEANING THE PUMP - It is good practice to keep the
pump as clean as possible. This will facilitate inspection,
adjustment and repair work and help prevent omission of
lubrication to fittings covered or hidden with dirt.
6. STORAGE - If the pump is to be stored or not used for
any appreciable length of time it should be drained and
a light coat of lubricating and preservative oil should be
applied to the internal parts. Lubricate all fittings. Rotate
by hand every 30 days.
SUGGESTED REPAIR TOOLS: The following tools must
be available to properly repair Series 724 and 4724 pumps.
These tools are in addition to standard mechanics’ tools such
as open end wrenches, pliers, screw drivers, etc. Most of the
items can be obtained from an industrial supply house.
1. Soft Headed hammer
2. Allen wrenches (some mechanical seals and set collars)
3. Packing hooks, flexible
Small for 0.25 inch and 0.31 inch cross section packing
Large for 0.38 inch and up cross section packing
4. Mechanical seal installation sleeve
5. Bearing locknut spanner wrench (2-810-043-375)
6. Spanner wrench, adjustable pin type for use on double
end caps (2-810-008-375)
7. Brass bar
8. Arbor press
SECTION TSM 211ISSUE DPAGE 3 OF 8
Page 4
SEALED PUMPS
SEAL SEAT
IDLER
IDLER PIN
HEAD
CASING
ROTOR
CASING BUSHING
SEAL
ROTARY
MEMBER
BRACKET
END CAP
BALL BEARING
CONICAL SPRING WASHERS
LOCKNUT
SHAFT
SETSCREW
SPACER (2)
FIGURE 2
SECTIONAL VIEW 4724 SERIES
FIGURE 3
EXPLODED VIEW SERIES 724 AND 4724 PUMP SECTIONAL VIEW
ITEMNAME OF PARTITEMNAME OF PARTITEMNAME OF PART
1Nut, Self Locking10Internal Retaining Ring19Rotor and Shaft
3Lipseal (2)12Washer, Packing Gland Retainer21Gasket, Head
4Grease Fitting13Packing Gland, Split22Idler Pin
5Conical Spring Washer (2)14Packing23Head
6Ball Bearing, 2 Row Plain15Washer, Packing Retainer24Capscrews, Head (6)
7Capscrew, Bracket (2)16Pipe Plug, 1/8”25Mechanical Seal (4724 Series)
8Bracket17Bushing, Casing
9End Cap, Bearing Housing18Casing
SECTION TSM 211ISSUE DPAGE 4 OF 8
Page 5
DISASSEMBLY
DANGER !
Before opening any Viking pump liquid
chamber (pumping chamber, reservoir,
relief valve adjusting cap fitting, etc.)
Be sure:
1. That any pressure in the chamber has
been completely vented through the
suction or discharge lines or other
appropriate openings or connections.
2. That the driving means (motor,
turbine, engine, etc.) has been “locked
out” or made non-operational so that
it cannot be started while work is
being done on pump.
3. That you know what liquid the
pump has been handling and the
precautions necessary to safely
handle the liquid. Obtain a material
safety data sheet (MSDS) for the
liquid to be sure these precautions
are understood.
Failure to follow above listed
precautionary measures may result in
serious injury or death.
1. CAUTION: When the head is being removed from the
pump (See Figure 2), the idler usually stays on the
idler pin, but will fall off if the inside of the head is tilted
downward. A fall on a hard surface can damage the idler.
If the idler should fall, check carefully and file or stone all
nicked or rough places before reassembly.
Remove the head from the pump. If the pump has a
relief valve on head, the valve may have to be removed
before removing the head.
2. Remove the head gasket. If a new gasket is not
available, the original gasket may be re-used provided it
was not damaged when removing the pump head.
3. Remove idler from the idler pin. If the idler pin is worn,
both the idler pin and idler bushing should be replaced.
On the F & FH size the idler & bushing assembly must
be replaced. The idler pin may be removed from the
head by pressing the pin out with a suitable press.
4. Remove the bearing locknut with a spanner wrench
using a suitable wrench on the flat of the shaft to hold the
shaft from turning. A piece of brass rod or wood inserted
in the port area and between the rotor teeth will also hold
the shaft from turning. Remove this piece of brass after
locknut is removed.
PACKING
RETAINING
WASHER
PACKING
PIPE PLUG
FIGURE 4
PACKING AREA CROSS SECTION
(SERIES 724)
5. Remove bracket capscrews and disassemble bracket
from casing.
6. REMAINING DISASSEMBLY PROCEDURE for the
Series 724 packed pump. (Refer to Figure 4).
Remove the packing gland nut, packing gland retainer
washer, and split packing gland halves. The internal
retaining ring, does not need to be removed at this point.
To remove the rotor and shaft, push or tap with a soft
hammer toward the head. The packing and packing
retainer washer can now be removed.
7. REMAINING DISASSEMBLY PROCEDURE for the
Series 4724 mechanical seal pump. (Refer to Fig.
5). Remove the 1/8” socketed head pipe plug on the
casing and loosen the two Allen head setscrews on the
mechanical seal.
ROTARY MEMBER
PIPE PLUGPTFE GASKET
PACKING
GLAND NUT
SPLIT PACKING
GLAND HALVES
PACKING GLAND
RETAINING WASHER
INTERNAL
RETAINING RING
PACKING GLAND NUT
SEAL SEAT
GASKET
FIGURE 5
MECHANICAL SEAL AREA CROSS SECTION
(SERIES 4724)
SECTION TSM 211ISSUE DPAGE 5 OF 8
Page 6
Remove the packing gland nut and seal seat. Inspect the
gaskets and the seal seat for wear. If the seal is to be reused, remove the rotating part of the mechanical seal as
follows: Remove the head and idler. Push the rotor and
shaft out until the outer end of the seal is approximately
flush with the first undercut on the shaft. Then draw rotor
shaft back into the casing and re-install head and idler on
the casing as shown in Figure 6. This has positioned the
rotary member beyond the casing. Now place the wire
spanner wrench (Provided in the instruction envelope)
under the rotary member as shown in Figure 6. Place
the seal seat on the rotary member and push downward
firmly. In this position install two installation clips on
rotary member (Provided in instruction envelope) 180º
apart before removing the rotary member of the seal.
The installation clips remove the load within the seal and
permits easier disassembly and re-assembly of the seal.
Again remove the head and idler permitting the rotor and
shaft to be removed.
8. To remove the thrust bearing parts, Figure 7, first loosen
the setscrew which locks the end cap. Next remove
the end cap allowing ball bearing and conical spring
washers to be removed. The bearings should be washed
thoroughly and examined. If there is any evidence of
wear or damage a new bearing should be used.
9. The casing should be examined for wear, particularly at
the I.D. between the port openings.
10. The casing bushing should be inspected and if it shows
signs of wear, should be replaced.
Examine the lipseals in the bracket and end cap. These
lipseals are important to this assembly and should be
replaced if not in first-class condition. They are a grease seal
for the ball bearing and also act as a shield to keep dirt or
debris from entering the bearing.
When installing new lipseals, be sure they are assembled
with the lips facing as shown in Figure 7.
END CAP
LIPSEALS (2)
SETSCREW
BEARING
SPACERS (2)
DOUBLE ROW
BALL BEARING
LOCKNUT
CONICAL
SPRING
WASHERS (2)
FIGURE 7
THRUST BEARING AREA CROSS SECTION
SET SCREWS
SPANNER
WRENCH
FIGURE 6
SEAL SEAT
ROTARY
MEMBER
CLIPS
If it is necessary to install a new carbon graphite bushing,
extreme care should be taken to prevent breaking, as it is a
brittle material and easily cracked. If cracked, this bushing will
quickly disintegrate. An arbor press should always be used in
installing carbon graphite bushings. Be sure the bushing is
started straight. DO NOT STOP the pressing operation until
the bushing is in proper position. Starting and stopping this
operation may result in cracking.
ASSEMBLY
1. Install the rotor and shaft. Be sure shaft is free from burrs
and foreign particles that might damage the bracket
bushing.
2. Place a head gasket on the head. With the idler on the
idler pin, put the head and idler on the pump and tighten
the capscrews evenly. Tilt the top of the head away from
the pump slightly until the crescent enters the inside
diameter of the rotor and rotate the idler until its teeth
mesh with the rotor teeth. This will help in putting the
head on the pump.
SECTION TSM 211ISSUE DPAGE 6 OF 8
Page 7
3. REASSEMBLY OF SERIES 724 (Refer to Fig. 4).
With the pump in a vertical position, install the packing
retainer washer in the bottom of the stuffing box and
install three rings of packing. It is a good practice to install
a new set of packing. Install three rings of packing with
the joints staggered. Install the two split packing gland
halves. Place the packing gland retainer washer on the
split packing gland halves and assemble the packing
gland nut to the casing. (Skip to step number 4).
REASSEMBLY OF SERIES 4724 (Refer to Fig. 5).
Assemble mechanical seal with installing clips in place.
Check shaft step to be sure it doesn’t have any burrs.
DO NOT BREAK EDGE ON STEP SINCE FULL
EDGE IS REQUIRED TO SUPPORT THRUST OF
ROTOR SHAFT. Coat the inside of the rotary member
with light oil.
Place the rotary member on the shaft and slide over
the bearing step. THIS SHOULD PRACTICALLY FALL INTO PLACE. NO FORCE SHOULD BE USED. As
shown in Figure 6 place the wire spanner wrench under
the rotary member and place the seal seat above. Push
the seal seat against the rotary member until installation
clips are loose and can be removed. Remove the wire
spanner wrench. Remove the seal seat and install the
PTFE gasket and assemble the seal seat in the casing.
Place the gasket in the packing gland and tighten gland
to the casing. Using an Allen wrench tighten the two small
setscrews on the mechanical seal through the 1/8” pipe
access hole. Replace the 1/8” socket head pipe plug.
4.(Refer to Fig. 7). Place the two conical spring washers
with the I.D.’s in contact, (the O.D.’s will then be
separated) into the thrust bearing area of the bracket.
Next place the double row ball bearing and the end cap
containing a lipseal into position. Tighten the end cap
by hand until resistance is felt, then tighten half turn
additional.
5. Place a bearing spacer collar on the shaft with the
bevel on the O.D. pointing toward the drive end. Place
the casing and shaft assembly in the bracket assembly
and tighten with the two bracket capscrews. Insert the
second bearing spacer collar (beveled edge first) over
the end of the shaft and against the ball bearing.
Place the bearing locknut on the shaft and tighten. Use
a suitable wrench on the flat of the shaft to keep it from
turning.
IMPORTANT: Adjust end clearance before operating
pump.
To set the proper running end clearance, rotate end
cap in the opposite direction (counterclockwise) three
notches which is equivalent to .003 end clearance. Each
notch represents .001 end clearance.
2. Retighten setscrew locking the end cap in place.
INSTALLATION OF NEW PACKING
Install three rings of packing with the joints staggered.
Loosen the packing gland nut by turning counterclockwise
viewing from the shaft end. Install the split packing gland
halves and slide packing gland retainer washer into place.
Install internal retaining ring.
The packing is now ready for adjustment. Since the stainless
steel pump shaft has a tendency to become hot when
packing is over-tightened, the packing must be carefully
adjusted. During first few days, tighten packing slowly
allowing adequate leakage as packing “runs-in”. The packing
when properly adjusted must have slight leakage to achieve
proper operation and life. After initial adjustments occasional
adjustment will be required during operation.
PRESSURE RELIEF VALVE
INSTRUCTIONS
1. Remove valve cap.
2. Measure and record the length of extension of the adjusting screw, See (A) Figure 9.
3. Loosen the lock nut and back out adjusting screw until
spring pressure is released.
4. Remove bonnet, spring guide, spring and poppet from
valve body. Clean and inspect all parts for wear or
damage and repair or replace as necessary.
END CLEARANCE ADJUSTMENT
1. The two conical spring washers produce a thrust
load on the outer race of the double row ball bearing
pushing it towards the head. End clearance adjustments
are made by rotating the end cap in a clockwise or
counterclockwise motion.
To set the end clearance rotate the end cap using the wire
spanner wrench in a clockwise direction while viewing
from the shaft end, until noticeable drag occurs while
turning the shaft. This produces zero end clearance.
FIGURE 8
VALVE - G SIZE
VALVE - LIST OF PARTS
1. Valve Cap6. Valve Body
2. Adjusting Screw7. Valve Spring
3. Lock Nut8. Poppet
4. Spring Guide9. Cap Gasket
5. Bonnet
SECTION TSM 211ISSUE DPAGE 7 OF 8
Page 8
TECHNICAL SERVICE MANUAL
HEAVY-DUTY STAINLESS STEEL PUMPS
ASSEMBLY
Reverse the procedure outlined under disassembly. If valve
is removed for repairs, be sure to replace in same position.
The valve cap should point towards the suction port.
DANGER !
Before starting pump, be sure all drive
equipment guards are in place.
Failure to properly mount guards may
result in serious injury or death.
PRESSURE ADJUSTMENT
Do not run with valve in full bypass for more than 30 seconds
at a time. If the pressure setting of the valve is to be changed
from that which the factory has set, the following instructions
should be carefully followed: Remove the valve cap which
covers the adjusting screw, and loosen the lock nut which
locks the adjusting screw so pressure setting will not change
during operation of pump. A pressure gauge in the discharge
line must be near a port and must be used for actual
adjustment operation. The adjusting screw should be turned
in for increasing the pressure or turned out for decreasing the
pressure. With the discharge line closed at a point beyond the
pressure gauge, the gauge will show the maximum pressure
the relief valve will allow while pump is in operation.
IMPORTANT
In ordering parts for relief valve on head, always be sure
to give Model and Serial Number of pump as it appears on
name plate and the name of the part wanted. When
ordering springs, be sure to give the pressure setting
desired.
SECTION TSM 211
PAGE 8 OF 8
SERIES 724 AND 4724
ISSUE D
SIZES F - G
WARRANTY
Viking warrants all products manufactured by it to be
free from defects in workmanship or material for a
period of one (1) year from date of startup, provided
that in no event shall this warranty extend more than
eighteen (18) months from the date of shipment from
Viking. The warranty period for Universal Seal series
pumps ONLY (Universal Seal models listed below) is
three (3) years from date of startup, provided that in
no event shall this warranty extend more than forty-two
(42) months from the date of shipment from Viking.
UNDER NO CIRCUMSTANCES SHALL VIKING BE
LIABLE UNDER THIS WARRANTY OR OTHERWISE
FOR SPECIAL, INCIDENTAL, INDIRECT,
CONSEQUENTIAL OR PUNITIVE DAMAGES OF ANY
KIND, INCLUDING, BUT NOT LIMITED TO, LOST
OR UNREALIZED SALES, REVENUES, PROFITS,
INCOME, COST SAVINGS OR BUSINESS, LOST OR
UNREALIZED CONTRACTS, LOSS OF GOODWILL,
DAMAGE TO REPUTATION, LOSS OF PROPERTY,
LOSS OF INFORMATION OR DATA, LOSS OF
PRODUCTION, DOWNTIME, OR INCREASED
COSTS, IN CONNECTION WITH ANY PRODUCT,
EVEN IF VIKING HAS BEEN ADVISED OR PLACED
ON NOTICE OF THE POSSIBILITY OF SUCH
DAMAGES AND NOTWITHSTANDING THE FAILURE
OF ANY ESSENTIAL PURPOSE OF ANY PRODUCT.
THIS WARRANTY IS AND SHALL BE VIKING’S SOLE
AND EXCLUSIVE WARRANTY AND SHALL BE IN
LIEU OF ALL OTHER WARRANTIES, EXPRESS
OR IMPLIED, INCLUDING, BUT NOT LIMITED
TO, ALL WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND
NON-INFRINGEMENT ALL OF WHICH OTHER
WARRANTIES ARE EXPRESSLY EXCLUDED.
See complete warranty at www.vikingpump.com.
VIKING PUMP, INC.• A Unit of IDEX Corporation•Cedar Falls, IA 50613 USA