Pump Solutions Group Neptune Polymaster Specs - Manual (Page 3)

Neptune Chemical Pump Co.
P.O. Box 247
Lansdale, PA 19446 Phone: 215-699-8700
Fax: 215-699-0370
800 Fax: 800-255-4017
www.neptune1.com
NeptServ1/Joan-Sandy/Polymaster/Manuals&Literature/Spec Dia 2-2-2000 jvb
3
2.05 Pressure Sensor
Each unit shall have an integral flow sensor to automatically place the system in
standby in the event of insufficient dilution water pressure/flow. When in “stand-by”,
the polymer feed pump is shut off, preventing the feeding of polymer in the absence of
sufficient dilution water. The polymer feed pump is shut off making it impossible to
feed polymer in the absence of sufficient dilution water. This condition will generate
an alarm contact output when low pressure is detected. System will restart
automatically when water pressure is restored
2.06 Solenoid Valve
Each unit shall have an integral solenoid valve for on/off control of the dilution water.
The solenoid valve and polymer feed pump are interlocked to an HOA selector switch
enabling the unit to be started or stopped from a remote signal.
2.07 Check Valves
Each unit shall have a check valve located on the polymer and water discharge lines
mounted immediately adjacent to the point of initial contact between the water and
polymer. The valve shall be chemically compatible with the polymer and water.
2.08 Dilution Water
Each unit shall be supplied with a wye strainer for dilution water inlet. Each unit shall
have a pressure gauge to monitor water pressure throughout the system and
withstand 100 psi operating pressure.
2.09 High Energy Mixing Unit
The polymer and water shall mix and activate initially in a motor-driven, thin-film
injection head called the “Gatlin”. The high energy mixing unit shall consist of a
sixteen groove fluted rotor that allows water to flow through its flutes while rotating at a
constant 1550 rpm. Neat polymer shall be injected through a check valve, through the
side of the housing and perpendicular to the rotating flutes and dilution water. The
tolerance between the sixteen rotor tips and housing shall not exceed 0.020 inch.
Injection head shall be designed to produce a minimum of 400 ultra thin polymer
sheets per second. To prevent shear rate damage to the polymer, high energy
contacting time of the polymer and dilution water shall not exceed 0.5 seconds. Mixing
systems without high energy mixing zones or with contacting times greater than 0.5
seconds shall not be considered equal. Systems that rely solely on hydraulic
impingement contacting and static mixing chambers shall not be acceptable.