When you purchase an ARO Pit Boss pneumatic diaphragm pump, you can be confident that you’re getting industry-proven durability, reliability, and value.
They’re the ideal solution for general transfer,
dewatering, and solids-handling applications.
2. Progress in motion
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(800) 495-0276 • fluids.ingersollrand.com
Engineered to excel
We’ve taken the patented technologies and proven designs that made
the ARO brand famous and added features to make our dewatering
and solids-handling pumps the first choice for general industrial,
mining, and construction professionals worldwide.
Features and benefits
1 Comfort-grip handles —
Improve portability and
usability
2 Removable screened
inlet — Keeps foreign particles
out of pump to eliminate failure
related to pumping debris
3 Optimized flow passages —
Enable the pump to handle
particles up to 1" (25.4 mm)
in diameter
4 Integrated base plate —
Distributes weight and ensures
stable operation on soggy and
unstable terrain
5 One-way exhaust check
valve — Permits submersible
operation
6 Patented “unbalanced”
air valve — Prevents stalling,
sticking, centering, freezing, and
air blow-by; uses less air power
and requires no lubrication
7 Independent pilot
rod — Ensures positive pilot
signal for shifting and avoids
stall-out
8 Bolted construction —
For safer, more reliable
performance and easier
servicing
9 Heavy-duty ball guides and
manifolds — Provide reliability
even when passing abrasive solid
and semi-solid materials
10 Manifold porting options —
Configurable in both NPTF and
BSP threads
1
2
4
8
10
3
5
6 7
9
Solutions for any need
ARO Pit Boss pumps are available in three sizes for a variety of
general transfer, dewatering, and solids-handling applications.
Specifications
Pit Boss dewatering pump 1-1/2" 2" 3"
Max flow — gpm (L/min) 80 (302.8) 156 (590.5) 217 (821.3)
Max discharge pressure — psi (bar) 120 (8.3) 120 (8.3) 120 (8.3)
Max particle size — inches (mm) 0.5 (12.7) 0.75 (19.0) 1 (25.4)
Pump weight — lb (kg) 55 (25) 74 (34) 118 (54)
Fluid ports 1.5" NPTF and 2" NPTF and 3" NPTF and
BSP (female) BSP (female) BSP (female)
Accessories
1-1/2" 2" 3"
Filter / regulator P29241-610 P29241-610 P29241-610
Air line kit 66084-1 66312 66312
Air section repair kit 637118-C 637434 637434
Fluid section repair kit 637469-XX 637468-XX 637467-XX
Muffler kit 67463 67389 67389
66M XX 0 - X X X - C
Fluid cap and
manifold material /
hardware
0
Aluminum /
carbon steel
Center body material /
fluid connection
15
Aluminum / 1-1/2 NPTF
17
Aluminum / 1-1/2 BSP
25
Aluminum / 2 NPTF
27
Aluminum / 2 BSP
30
Aluminum / 3 NPTF
32
Aluminum / 3 BSP
Seat material
1 Aluminum
Ball material
2 Nitrile
C Hytrel
E Santoprene
Diaphragm
material
2 Nitrile
9 Hytrel
B Santoprene
Local service, global reach
No matter where your operation is located,
ARO is committed to serving you 24 hours a
day, seven days a week. If you need assistance
at any time, give us a call at (800) 495-0276 or
visit our Web site, fluids.ingersollrand.com.
For more than 75 years, Ingersoll Rand ARO pumps and fluid products have helped drive
innovation and create new standards for how the world gets work done. Over the years,
we have applied our knowledge of our customers’ industries and the demands placed on
productivity and quality to consistently deliver products that increase productivity and
minimize the costs associated with transferring, extruding, and applying a wide range of
fluids, from low- to high-viscosity.
When you purchase an ARO product, you can be confident that you are getting
industry-proven dependability, versatility, and value. No matter what your product,
process, or location, ARO offers the products, accessories, and a worldwide distribution
and service network prepared to keep your process in motion.
After all, we’ve been doing it for more than 75 years.