01
Redundant overfill protection
A 3-point high-level sensor watches 85-90-95% levels. On high level, an actuated ball valve in the fill pipe closes automatically before fuel can overflow.
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.
M400
For Single or Multiple Above Ground Tanks The M400 is the standard for filling above ground fuel tanks outside buildings. The weatherproof enclosure has a brushed stainless steel finish. The fill station is designed for 1-4 fuel tanks. The system accepts hose connections from pump equipped fuel delivery trucks - with connection sizes of 2, 3, or 4 inch. Tank levels - particularly 85-90-95 % high levels are monitored for safe operation with overfill prevention.
Motor
None
Power
120-230 VAC, 1 Phase, 50-60 HZ
M4S
For Tanks in Buildings The M4S is the standard for filling fuel tanks or sub-base tanks within buildings. The weatherproof enclosure has a brushed stainless steel finish that looks great on building walls - now and for the long term. The fill station is designed for 1-4 fuel tanks and can be adapted for multi-tenant use. The system accepts hose connections from pump equipped fuel delivery trucks. Tanks levels - particularly 85-90-95 % high levels are monitored for safe operation with overfill prevention.
Motor
None
Power
120-230 VAC, 1 Phase, 50-60 HZ
M4P
25 GPM (100 LPM)
For Tanks in Buildings or Rooftops The M4P has an onboard pump for filling fuel tanks or sub-base tanks within buildings - at upper levels or rooftops. The weatherproof enclosure has a brushed stainless steel finish that looks great on building walls - now and for the long term. Tanks levels - particulary 85-90-95 % high levels are monitored for safe operation with overfill prevention.
Motor
Motor: 1 - 5 HP (0.75 - 3.5 KW)
Power
120-230 VAC, 1 Phase, 50-60 HZ
M410
300 GPM
For Single or Multiple Above ground Tanks The M410 is the standard for filling above ground fuel tanks outside buildings, where a high flow (100 or 300 GPM) pump is required. The weatherproof enclosure has a brushed stainless steel finish. The fill station is designed for 1-8 fuel tanks. The system accepts hose connections from pump equipped fuel delivery trucks - with connection sizes of 2, 3, or 4 inch. Tank levels - particularly 85-90-95 % high levels are monitored for safe operation with overfill prevention.
Motor
Motor: 1 - 5 HP (0.75 - 3.5 KW)
Power
460 VAC, 3 Phase, 50-60 HZ
MX400
600 GPM
For Data Center Sub-Base Tank Refill / Top-off The MX400 is the standard for filling above ground fuel tanks in tank farms, where a high flow (100, 300, or 600 GPM) pump is required. The system has a walk-in enclosure that allows for installation of filtration and other equipment in a controlled environment. The fill station is designed for 1-30 fuel tanks Tank levels - particularly 85-90-95 % high levels are monitored for safe operation with overfill prevention.
Motor
3 - 10 HP (0.75 - 3.5 KW)
Power
460 VAC, 3 Phase, 50-60 HZ
Flow range
Family span · 0–300 GPM
0
75
150
225
300 GPM
Shared technology
The same safety in every station.
02
Spill containment & tight fill
A 3-gallon spill containment with optional hand pump captures drips at the connection. Hose adapter, cap, ball valve, and check valve make a clean tight-fill link to the delivery truck.
03
Stainless NEMA 4 / IP65 enclosure
Weatherproof brushed stainless steel that looks right on a building wall for the long term. Wall-mount or optional 24 in floor stand, with an optional lockable handle.
04
C-Series controls & multi-tank
C1 or C8 controllers give visual and audible alarms, with an optional analog level transmitter and display. Optional multi-tank selection directs the fill to the right tank.
Model comparison
The whole family, side by side.
Model
Flow
Motor
Power
M400
None
None
120-230 VAC, 1 Phase, 50-60 HZ
M4S
None
None
120-230 VAC, 1 Phase, 50-60 HZ
M4P
25 GPM (100 LPM)
Motor: 1 - 5 HP (0.75 - 3.5 KW)
120-230 VAC, 1 Phase, 50-60 HZ
M410
300 GPM
Motor: 1 - 5 HP (0.75 - 3.5 KW)
460 VAC, 3 Phase, 50-60 HZ
MX400
600 GPM
3 - 10 HP (0.75 - 3.5 KW)
460 VAC, 3 Phase, 50-60 HZ
All models filter water + particulate to 1 micron · ISO 18/16/13 · NEMA 4 (IP65) · C81 controller, BACnet / Modbus
How it works
A safe path from the delivery truck to the tank.
Connect
The delivery truck hose couples to a tight-fill hose adapter with ball valve and check valve; a 3-gallon basin contains any spill at the connection.
Fill & monitor
Fuel flows in — from the truck pump on passive stations, or an onboard pump on M4P, M410, and MX400 — while the 3-point sensor tracks tank level.
Overfill lockout
At the 85-90-95% high levels the C-Series controller raises visual and audible alarms and the actuated ball valve closes the fill pipe automatically.
Select the next tank
Optional multi-tank selection directs the fill to any of 1–30 tanks from a single truck delivery point — the basis for data-center sub-base refill and top-off.
Equipment & options
Configured for your install.
Every M4-Series station ships with a complete valve, sensor, and overfill package in a brushed stainless enclosure, and adapts to wall-mount, floor-stand, or walk-in installs from 1 to 30 tanks.
Standard equipment
Hose adapter & cap (tight fill)
Ball valve & check valve
3 gal spill containment
3-point high-level sensor (85-90-95%)
Actuated ball valve overfill protection
C-Series controller · visual & audible alarms
Brushed stainless NEMA 4 (IP65) enclosure
Options
Onboard transfer pump (M4P / M410 / MX400)
High-flow fuel filtration (MX400)
Analog level transmitter & display
Multi-tank selection
Floor-mount stand, 24 in (600 mm)
Spill containment hand pump
Lockable enclosure handle