Nova-Tech LMI Series G - SG Metering Pump - Manual (Page 12)

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The prepared equipment should be covered with a
plastic sheet or a tarpaulin, but in a manner which
will allow air circulation and prevent capture of
moisture. Equipment should be stored 12 inches or
more above the ground.
If equipment is to be shipped directly from Milton
Roy into long term storage, contact Milton Roy to
arrange for factory preparation.
Pump Drive
1. Flood the gearbox compartment with a high
grade lubricating oil/rust preventative such as
Mobile Oil Corporation product “Mobilarma 524.”
Fill the compartment completely to minimize air
space and water vapor condensation. After stor-
age, drain this material and refill the equipment
with the recommended lubricant for equipment
commissioning.
2. Remove drive motor and liquid end, and brush
all unpainted metal surfaces with multipurpose
grease (NLGI grade 2 or 3). Store these unat-
tached.
Electrical Equipment
1. Motors should be prepared in the manner pre-
scribed by their manufacturer. If information is not
available, dismount and store motors as indicated
in step 3 below.
2. Dismount electrical equipment (including
motors) from the pump.
3. For all electrical equipment, place packets of
Vapor Phase Corrosion Inhibitor (VPCI) inside of
the enclosure, then place the entire enclosure, with
additional packets, inside a plastic bag. Seal the
bag tightly closed. Contact your distributor or LMI/
Milton Roy Service Department for recommended
VPCI materials.
2.4 MOUNTING
TO AVOID POSSIBLE DAMAGE TO
EITHER PUMP OR PERSONNEL, BOLT
PUMP DOWN AS SOON AS IT IS IN
POSITION.
Support the pump firmly in a level position on a
solid, vibration-free foundation, preferably with the
base above floor level to protect the pump from
wash downs and to provide easier access for ser-
vice. Be sure to allow enough space around the
pump for easy access during maintenance opera-
tions, pump adjustments, and/or oil filling or drain-
ing procedures.
Series G Model G pumps are provided with mount-
ing holes to accommodate anchor bolts. Refer to
Figure 3 for mounting hole dimensions.
Some Series G Model G pumps are shipped with
motors dismounted. After anchoring pump in posi-
tion, install motor, referring to Figure 7, Sheet 1.
Make sure spring (360) provided with pump is
installed in worm shaft prior to motor installation.
Pumps installed outdoors should be protected by a
shelter.
2.5 PIPING
NPSH Considerations
Size piping to accommodate peak instantaneous
flow. Because of the reciprocating motion of the
pump diaphragm, pump delivery follows an approx-
imate sine curve with a peak instantaneous flow pi
(3.14) times the average flow. Therefore, piping
must be designed for a flow 3.14 times the pump
capacity; this means that a pump rated for 88 gal-
lons per hour (333.1 L/hr.) requires piping sufficient
for 3.14 x 88 gph, or 276 gph (1044.7 L/hr.).
Figure 3. Mounting Hole Dimensions