LMI PD Series

PD Series Chemical Metering Pump
Designed specifically for industrial water treatment applications, the PD Series chemical metering
pump adds advanced technology to one of LMI’s most popular pumps. Available in two models,
Manual and Enhanced, the PD Series pump fits seamlessly into your water treatment process while
adding convenience and value to your application.
Experience the next generation of precision and performance:
• Improved Drive Mechanism for more powerful stroke,
consistent steady state accuracy, and reliable efficiency
• Simplified Capacity Setting with constant stroke range to
maintain calibration across an adjustable range
• Advanced Electronics dynamically compensate for
temperature and voltage conditions to provide consistent
performance (patent pending)
• Robust Liquid Ends with over 10 years of proven performance

Introducing the PD Series chemical metering pump, the new standard
in water treatment. This upgrade to LMI’s most popular pump series
includes an improved drive design, all new electronics, and proven
FASTPRIME™ liquid ends. Available in Manual or Enhanced control
models, the PD Series pump fits seamlessly into your process control
application. The Manual model offers straightforward control without
the need for tedious calculations. Its split-scale dial ensures precision,
even at lower flow rates. The Enhanced model offers external control
and a large graphical display to provide intuitive access to advanced
features such as calibration assist, system and user totalizers, the new
STAYPRIME™ degassing technology, and more.

Trusted by water treatment professionals for more than a generation,
the PD Series chemical metering pump will continue to earn your trust
for years to come.

Enhanced Functionality (PD7)

• 2.4” Color LCD - Intuitive navigation allows you to
configure and operate with ease – view status and
alerts from a distance to confirm safe operation
• External Control Inputs - Automate your process
with pulse pacing, remote start/stop, and tank level
indication – ideal for proportional dosing
• Calibration Assist - Simply draw from a column
and adjust the estimated value on-screen to the
measured actual – calibration is that easy
• System & User Totalizers - An odometer for your
pump that logs pump strokes, estimated volume,
and power cycles – confirm pump operation
between visits
• StayPrime™ Degassing Technology - Automates
the priming cycle after a period of idle pump time to
ensure prime
Designed to Last
Features and Benefits
• Shared drive platform with universal 115-230V, 50/60 Hz power supply
• Flows from 2 GPH (7.57 LPH) up to 450 PSI (30.6 BAR)
• Simplified capacity control with constant stroke length to maintain
calibration across the adjustable range
• Advanced electronics with dynamic compensation for temperature and
voltage conditions
• FastPrime™ liquid ends (standard) that allow fast and easy priming with
integrated bleed valve
• AutoPrime™ liquid ends (optional), designed specifically for off-gassing
liquids (See page 4 for performance specifications)
• Rugged construction with NEMA 4X/IP 65 housing for the harshest
environments and outdoor use
• Compact footprint for efficient use of space in process applications or
OEM configuration
• Agency certifications - NSF 61 and 50 (pending), ETL, CE
• Built on decades of experience and fully backed by LMI’s two-year
warranty