Pump Solutions Group Neptune Polymaster Specs - Manual (Page 4)

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
4
The high energy mixing device will have a minimum speed of 1550 RPM and shall not
be a pump. The mixing chamber shall have a mechanical seal and a 316 stainless
steel shaft and housing.
2.10 Static Mixing
Each unit shall have a secondary mixing unit constructed of clear plastic to allow
viewing of the mixed polymer and water solution. The mixing unit shall contain 316
stainless steel triple action static mixing elements that complete the polymer blending
process.
2.11 Materials
The wetted elements of the unit which contact neat or dilute polymer shall be
constructed of materials that are non-corrosive, such as the following:
§ PVC
§ Acrylic
§ Polyethylene
§ 316 stainless steel
2.20 Controls
Each unit shall be equipped with all necessary controls, pre-wired, to provide the
following minimum functions:
§ Dilution water flow control with rate adjusting valve and flowmeter.
§ Hand-Off-Auto* switch to control power to the solenoid valve, Gatlin mixing unit
and metering pump.
§ Stroke frequency and stroke length adjustments for diaphragm pumps.
§ Local or remote control of pump feed rate. *
§ The remote control shall be in response to a 4 to 20 mA control signal. *
§ Flushing mode switch that shuts off the feed pump and allows water to flush
the system.
* In the hand position, the unit is started and stopped manually, however, the flow
sensor described in paragraph 2.05 remains active and polymer will not feed in
the absence of sufficient dilution water. In the auto position, the unit will run
only when an external contact permits the unit to run. This could be a flow
signal from a waste stream, a level switch signaling the need to refill a storage
tank with dilute polymer to be fed by multiple pumps to multiple points of use or
any other external condition that is desired to cause the polymer blending to
begin or end.