Instruction Manual

Flow Diagrams
Specifications
All Models Except PAD-3000R & PMD-3000R Models PAD-3000R & PMD-3000R
1 Polymer Metering Pump
2 Injection/Check Valve
3 Gatlin Distribution Head
4 Water Pressure Gauge
5 Solenoid Valve
6 Dilution Water Adjusting Valve
7 Flowmeter
8 Water Differential Pressure Switch
9 Static Mixer and Viewing Cylinder
Legend
Minimum water pressure required: 1.7 bar (25 psi)
Maximum operating pressure: 6.9 bar (100 psi)
Pressure drop across unit less than: 1.0 bar (15 psi)
Turndown ratio:
• Water 5:1
• Polymer 2:1 on stroke length (most models)
10:1 on speed
20:1 total
Water control includes:
• Rotameter for flow indication and adjustment
• Solenoid valve for on/off control
• Water pressure gauge
• Water differential pressure switch
• Water supply line strainer
Polymer control includes:
• Positive displacement metering pump with manual stroke length
control and manual or automatic stroke speed control
• Polymer inlet line strainer
• Polymer injection check valve and back-pressure valve
Standard electrical controls include:
• NEMA 4X control enclosure and junction box
• Power cord and plug
• Terminal strip connection for 4-20 mA pacing signal
(automatic units only)
• Local-off-remote selector switch and red running light. Terminals
for remote start/stop interlock.
• Interlock for shutdown on loss of dilution water includes local
amber fault light and remote alarm contact
• Local manual override of polymer flow rate
Power requirements:
• Specify: 1 phase, 115 volt, 60 Hz
OR 1 phase, 220 volt, 50 Hz
• Solenoid pump models: 5 amps @ 115 volt
• Motor-driven pump models: 15 amps @ 115 volt
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