Automatic Dewatering System
Air Operated Control Solution with Liquid Level Sensing
Overview
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
Pump Compatibility
2” EXP Series Pump
PX20X-XXX-XXX-X, PX20P-FXS-XXX
2” PRO Series Pump
6662XX-XXX-C
3” EXP Series Pump
PX30X-AXX-XXX-X, PX30X-BXX-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![]()
Specifications
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
*NOTE: Dimensions for LLS installed on the same side of the air input line
