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Automatic Dewatering System

Air Operated Control Solution with Liquid Level Sensing

The ARO® Automatic Dewatering System offers automatic on/off controls for Pro and EXP diaphragm pumps. A pneumatically controlled Liquid Level Sensor is used to easily control the fluid level within a desired range. The Automatic Dewatering System will limit the monitoring labor and reduce air consumption by avoiding dry running of the pump.

The ARO® Automatic Dewatering System offers automatic on/off controls for Pro and EXP diaphragm pumps.  A pneumatically controlled Liquid Level Sensor is used to easily control the fluid level within a desired range.  The Automatic Dewatering System will limit the monitoring labor and reduce air consumption by avoiding dry running of the pump.


Features

  • Simple design is easy to setup and use
  • All pneumatic operation eliminates electrical ignition source
  • High/Low level control maintains fluid between established levels
  • Reduces air consumption by avoiding pump dry running
  • Portable system with directly mounted liquid level sensor

Pump Compatibility

2” EXP Series Pump

PX20X-XXX-XXX-X

2” PRO Series Pump

6662XX-XXX-C

3” EXP Series Pump

PX30X-AXX-XXX-X

3” PRO Series Pump

6663XX-XXX-C

Other EXP Series or Pro Series diaphragm pumps are compatible with remotely mounted Liquid Level Sensors by reducing the air inlet fitting from 3/4”-14 NPTF-1 to necessary size
Dewatering Illustration

Specifications

Temperature Range- °F (°C)

32 – 122 (0 - 50)

Air Supply Pressure- psi (bar)

29-101 (2-7)

Weight w/o Pump lbs (kg)

11 (4.8)

Air Connection Size

Rc 3/4”

Sensing Tube lengths - ft (m)

66 (20)

Sensitivity to detect liquid level- in (cm)

2-4 (5-10)

Service Kits

SS-BQG550

Mounting Bracket

PNCV-1/2

Pneumatic Controlled Valve

637523

Sensing Tube and Filter Kit

Dimensions

Pump

A

B

C

mm

in.

mm

in.

mm

2” Metallic EXP

553.1

21.8

711.7

28

172.5

2” Metallic PRO

466.8

18.4

710.8

28

169.5

2” Plastic EXP

426.1*

16.8*

819

32.2

188.3

3” Metallic EXP

570.5

22.5

855.4

33.7

195.9

3” Metallic EXP

480

18.9

856.9

33.7

195.7

Automatic Dewatering Kit Dimensions
*NOTE: Dimensions for LLS installed on the same side of the air input line
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