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Neptune Chemical Pump Co.
P.O. Box 247
Lansdale, PA 19446
Polymer Dilution Blend and Feed Specifications For General Use
1.0 GENERAL
The contractor shall furnish and install polymer dilution blending and feeding units together
with all drives, motors, valves, piping, supports, controls, and accessories necessary for a
complete and operable system in accordance with the requirements of the contract
documents. Each system shall be completely piped, wired and tested before shipment.
2.0 PRODUCTS
2.01 General
The polymer dilution blending and feeding units shall be integrated equipment
packages to automatically meter, dilute, activate, and feed (emulsion, solution or
dispersion) polymers. Concentrated polymer and water shall be blended. The
process shall begin with a motor driven, high energy, injection head which shall
spread the polymer into thin layers for introduction to the water without the formation
of fisheyes or gels. The injection head shall have a multiple vaned, close tolerance
rotor. All of the dilution water shall go through the high energy zone for machines with
capacities of 1200 gpm or less. Units handling water flows in excess of 1200 gpm
shall utilize secondary dilution. Machines which feature secondary dilution shall
cause flow in excess of 1200 gpm to be diverted to the secondary dilution stage.
When flows reduce, the secondary dilution stage shall be shut down for flow rates
below 1200 gpm to allow all of the dilution water to, again, pass through the high
energy injection head.
Phone: 215-699-8700
Fax: 215-699-0370
800 Fax: 800-255-4017
www.neptune1.com
Electronic Diaphragm Metering Pump
After the initial high energy mixing, the solution shall be introduced into a low energy
static mixer. Static mixer shall contain a series of 316SS mixing elements housed in
clear PVC housing for viewing the final mixed solution. Static mixing elements shall
produce a high degree of back mixing. Systems that do not have a motor-driven
polymer mixing chamber shall not be considered equal. System shall be designed for
wash down duty. System shall have an electronic diaphragm polymer feed pump.
NeptServ1/Joan-Sandy/Polymaster/Manuals&Literature/Spec Dia 2-2-2000 jvb
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Neptune Chemical Pump Co.
P.O. Box 247
Lansdale, PA 19446
2.02 Frame
Each polymer unit shall have a 304 stainless steel open frame that will house and
support all components.
All components in contact with polymer or water shall be of stainless steel, brass or
inert plastic.
2.03 Pump
The pumps shall be an electronic solenoid-driven diaphragm type that have a manual
stroke length adjusting knob and electronic push button control of the strokes per
minute or hour.
Diaphragm pump shall be capable of receiving an external 4-20 mA pacing signal
from a remote monitoring devices (supplied by others) to automatically adjust the
neat polymer feed rate.
Phone: 215-699-8700
Fax: 215-699-0370
800 Fax: 800-255-4017
www.neptune1.com
Diaphragm pump shall be capable of pumping liquid polymers with an apparent
viscosity of 50,000 cps. Pump shall have a water proof microprocessor type control
panel with a LCD digital display of strokes per minute. Stroke rate shall be 0 — 100
strokes per minute. (Units used to prepare dilute solutions to be stored in a central
tank for distribution to multiple points by other pumps, shall be manually controlled by
the on/off sequence of high and low level switches; the 4-20 mA pacing signal is not
required.)
Pump output shall be: _____ gph minimum. _____ gph maximum. A wye strainer
shall be supplied installed in the suction line for the pump.
2.04 Rotameters
Each unit shall have an integral rotameter type flow indicator to meter and control the
dilution water flow rate. The rotameter shall have a guided float type with acrylic
metering tube scaled in 0 to ____gpm and with a 316 stainless steel and brass
control valve. If more than 1200 gph of dilution water is required, a secondary flow
indicator shall provide an additional 0 – 1800 gph. The secondary dilution water flow
shall combine with the primary flow circuit and pass through a second static mixer
prior to exiting the unit.
NeptServ1/Joan-Sandy/Polymaster/Manuals&Literature/Spec Dia 2-2-2000 jvb
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