01
All-stainless, DEF-ready
304 stainless steel wetted parts throughout the pump, piping, and accessories stand up to corrosive DEF urea for long-term reliable performance.
Choose your flow class
Sized to the tank in front of you.
Select a model to see where it fits in the family. Every class shares the same filtration, controls, and enclosure — only the flow rate changes.
UM1
Simplex3–10 GPM (12–40 LPM)
A compact simplex pump set that transfers DEF urea to reservoirs at emergency generators for SCR emissions control. Its minimal-footprint design delivers 3 to 10 GPM from an all-stainless build, mounted on integral containment with leak detection for critical applications.
Motor
TEFC, 0.5 to 1.0 HP (0.33 - 0.75 KW)
Power
120-230 VAC, 1 Phase, 50-60 HZ
Controller
C11
Best for
Single-genset DEF transfer, minimal footprint
UM2
Duplex · Low Flow3–10 GPM (12–40 LPM)
A duplex, low-flow pump set that adds redundancy to DEF transfer at emergency generators. Two Viking positive-displacement pumps with auto-switch keep DEF flowing to SCR reservoirs where downtime is not an option, in the same compact all-stainless package as the UM1.
Motor
TEFC, 0.5 to 1.0 HP (0.33 - 0.75 KW)
Power
120-230 VAC, 1 Phase, 50-60 HZ
Controller
C12
Best for
Redundant low-flow DEF for critical gensets
UM200
Duplex · Standard Flow5–100 GPM (20–400 LPM)
The standard-flow duplex set scales DEF transfer up to 100 GPM for multiple generators or high-volume SCR reservoirs. Redundant Viking pumps, all-stainless construction, and integral containment deliver the same critical-facility reliability across a much wider flow range.
Motor
TEFC, 0.5 to 1.0 HP (0.33 - 0.75 KW)
Power
120-230 VAC, 1 Phase, 50-60 HZ
Controller
C82
Best for
Multi-generator, high-volume DEF supply
Flow range
Family span · 0–400 GPM
0
100
200
300
400 GPM
Shared technology
The same engineering in every set.
02
Viking positive-displacement pumps
A proven mechanical design with strainers, check valves, ball valves, pressure / vacuum gauges, and relief valves for accurate, metered transfer.
03
Integral containment & leak detection
Each set mounts on an integral containment basin with leak-detection monitoring and a flow sensor for safe, supervised operation.
04
Integration ready
Onboard motor starter, disconnect, HOA switches, and e-stop integrate directly with CAT, Cummins, MTU, Kohler and other generator controls.
Model comparison
The whole family, side by side.
Model
Flow
Motor
Power
Controller
Best for
UM1
Simplex
3–10 GPM (12–40 LPM)
TEFC, 0.5 to 1.0 HP (0.33 - 0.75 KW)
120-230 VAC, 1 Phase, 50-60 HZ
C11
Single-genset DEF transfer, minimal footprint
UM2
Duplex · Low Flow
3–10 GPM (12–40 LPM)
TEFC, 0.5 to 1.0 HP (0.33 - 0.75 KW)
120-230 VAC, 1 Phase, 50-60 HZ
C12
Redundant low-flow DEF for critical gensets
UM200
Duplex · Standard Flow
5–100 GPM (20–400 LPM)
TEFC, 0.5 to 1.0 HP (0.33 - 0.75 KW)
120-230 VAC, 1 Phase, 50-60 HZ
C82
Multi-generator, high-volume DEF supply
All models filter water + particulate to 1 micron · ISO 18/16/13 · NEMA 4 (IP65) · C81 controller, BACnet / Modbus
Built for SCR emissions control
Reliable DEF for emergency power.
DEF to SCR reservoirs
Transfers DEF urea to reservoirs at emergency generators so SCR systems can control emissions on demand.
Critical-facility reliability
Designed for emergency power at critical facilities, with duplex redundancy available where downtime is not an option.
Direct genset integration
Built to integrate directly into CAT, Cummins, MTU, Kohler, and other generator control and monitoring systems.
Compact, minimal footprint
An innovative compact design delivers 3 to 100 GPM of DEF from a small, wall- or floor-mounted footprint.
Equipment & options
Configured for your install.
Every UM set ships with a complete valve, gauge, sensor, and containment package, and adapts to the enclosure, mounting, and control requirements of the site.
Standard equipment
Inlet & outlet ball valves
Inlet Y-strainer
Outlet check valve
Inlet compound gauge (-30 to +130)
Outlet pressure gauge (0–100 PSI)
Containment basin with leak sensor
Flow sensor
Motor starter panel — disconnect, HOA & e-stop
Options
Stainless steel enclosure (vs. powder-coat RAL 7035)
Floor-mount stand — 24″ (600 mm)
Level & temperature transmitters
Lead-lag / auto-switch duplex control
Modbus / BACnet to generator controls