01
Double-wall containment
UL 142 double-wall construction with optional UL 2085 2-hour fire rating, sized to satisfy life-safety generator fuel storage requirements.
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.
M6
Storage Tank250–2500 GAL
The M6 Cubic Fuel Storage Tank stores diesel for life-safety generators in a double-wall UL 142 or UL 2085 fire-rated tank. It ships with a full accessory package and the connections to add transfer pump sets that move fuel to day tanks or sub-base tanks inside the building or on the rooftop.
Approvals
UL 142 / UL 2085
Controller
C1 / C8 · UL 508A
Transfer
Optional pump sets
Best for
Bulk storage, add transfer as needed
M600
Integrated System1000–5000 GAL
The M600 Integrated Tank System simplifies specification, purchase, installation, and operation. The bulk storage tank arrives factory-equipped with duplex transfer pumps, a tank fill system with overfill prevention, filter-polishing equipment, and integrated monitoring and controls — all wired and tested.
Approvals
UL 142 / UL 2085
Controller
C1 / C8 · UL 508A + HMI
Transfer
Duplex pumps onboard
Best for
One-spec turnkey fuel storage
Flow range
Family span · 0–1000 GAL
0
1250
2500
3750
5000 GAL
Shared technology
The same engineering in every tank.
02
Fuel transfer to the engine
Transfer pump sets move fuel from bulk storage to generator day tanks or sub-base tanks — inside the building or on the rooftop.
03
Level, leak & temperature sensing
A 4- or 5-point level sensor, leak sensor, and level and temperature transmitters ship wired to the controller with a direct-read gauge.
04
C1 / C8 controls & BMS
UL 508A PLC controls with HMI. Output relays for High, Low, and Leak, plus Modbus — and optional BACnet — to building automation and generator systems.
Model comparison
The whole family, side by side.
Model
Capacity
Approvals
Controller
Factory-integrated
Best for
M6
Storage Tank
250–2500 GAL
UL 142 / UL 2085
C1 / C8 · UL 508A
Tank accessory package
Bulk storage, add transfer as needed
M600
Integrated System
1000–5000 GAL
UL 142 / UL 2085
C1 / C8 · UL 508A + HMI
Pumps + polisher + controls
One-spec turnkey fuel storage
All models filter water + particulate to 1 micron · ISO 18/16/13 · NEMA 4 (IP65) · C81 controller, BACnet / Modbus
Built for in-building fuel
Safe storage and reliable transfer, right where the generator lives.
Safe fuel storage inside buildings
Integral secondary containment stores life-safety generator fuel safely within the building or on the rooftop.
Reliable refill systems
Pre-assembled, tested inlet valves, transfer pumps, and sensors are monitored and controlled by the C1 or C8 panel.
Integrated with building systems
Advanced controllers relay tank status to BAS, generator controls, switchgear, security, and fire-alarm systems.
Readily adapted for special operation
Dual inlet valves, monitored positions, overflow pumping, emergency evacuation, auto-commissioning, and fluid metering.
Equipment & options
Configured for your install.
Every M6 Series tank ships with a complete accessory, gauge, and sensor package. The M6 adds transfer, fill, and polishing as options — the M600 arrives with all of them factory-installed, wired, and tested.
Standard equipment
Inlet solenoid valve, strainer & ball valve
4- or 5-point level sensor + leak sensor
Level & temperature transmitters
Standard & emergency vents
Direct-read level gauge
Inspection port, cap, supply & return connections
Options · M600 standard
Duplex fuel transfer pumps
Tank fill system with overfill prevention
Fuel filter polisher
Remote fill station
UL 2085 2-hour fire rating
Modbus / BACnet connectivity