Introduction
The 22501series liquid cooling kits are designed
for near silent operations in extreme thermal load environments
such as multiprocessors, thermoelectric applications,
or extreme overclocking. These kits are ideally suited
for wide body server chassis featuring 120mm fan ventilation.
A chassis modification is required in most cases to locate
the dual 120mm radiator. Other components are entirely
plug-and-play
Performance features:
- Extreme performance MCW5000
release 2 series water-bocks with patent pending Diamond-Pin
Matrix© technology
- Extreme performance MCP600
12 Volts DC industrial pump
- 1/2" OD tubing for optimum flow rate, and reasonable
bulk
- Slim profile radiator assembly with dual 120mm fan,
each rated at 72 CFM (34dBA) each. Radiator may be installed
outside the case.
- 5 Watt 25 Ohm Rheostat (effective 3/10/03), alllowing
to adjust the fans voltage to fine tune airlfow and
noise levels.
Convenience features:
- 12 Volt DC pump plugs directly into computer power
supply
- High-reliability, no-maintenance industrial pump
features quiet operations thanks to brushless motor,
and provides tens of thousands of hours of uninterrupted
service.
- FBK525 fill & bleed
assembly fits entirely into a single 5 1/4"
bay : no reservoir is needed, resulting in space
saving, and uncluttered installation.
- Quick-connect fittings, for safe and expeditious installation
- Plug-and-play water-block installation, doesn't require
removing the motherboard.
Optionnal devices and configurations:
- Add a VGA cooler such as the MCW50
- Add a chipset cooler such as the MCW20 (to be
released 9/7/03)
- Add a second water block for multi-processor applications,
such as dual AMD®, dual Xeon, or dual Opteron
(soon to be released).
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INDIVIDUAL COMPONENT SPECIFICATIONS
- MCW5000 release 2 CPU water-block: see complete
specifications here
- MCP600 12 Volts DC pump: see complete specifications
here
- MCW50 VGA water-block: see complete specifications
here
- MCW20 Chipset cooler (to be released 9/7/03)
-
Ultra-slim, black anodized aluminum plate and fin construction

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Part #
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Thickness
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Height
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Length
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Core width
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Fitting Size
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RAD676
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3/4"
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11"
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5 7/8"
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4"
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3/8" OD tubing with 1/2" quick connect
elbow adapters
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In most situations, the radiator will be installed
outside of the case, either on a side, top, or back
panel, with the two 120mm fans installed inside of the
case. A custom gasket is provided with the assembly
to optimize the seal between heat-exchanger, panel,
and fans. The inlet and outlet tube diameter are 3/8",
and factory equipped with 1/2" quick-connect elbow
fittings. Rubber grommets are provided for routing
the tubing inside the case.

Click on picture to enlarge
Users gallery (click on pic to enlarge)
Cole Mangham installed the radiator at the top of
his mid-tower case.
Fan specifications
(effective 3-10-04)
Manufacturer: Delta
Bearing type: ball bearings
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Model
|
Rated Voltage
|
Rated Current
|
Rated Input
Power
|
Speed
|
Max air Flow
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Noise
|
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Part No.
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VDC
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Amp
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Watt
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RPM
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CFM
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dB-A
|
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WFB1212M
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12
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0.20
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2.40
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2100
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72.3
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34.0
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Rheostat specifications (effective
3-10-04):
10 Ohm, 5 Watt, wirewound
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This 1/2" fill & bleed kit replaces a reservoir.
It fits in any 5 1/4" bay, and occupies only one
slot. Thanks to convenient retention clips, the FBK-525
revision 2 can also be installed just about anywhere in
the computer. New inlet and discharge ball valves also
offer added convenience for quick and easy insertion and
removal of the tubes.
The FBK525 allows users to fill the cicuit with coolant,
and conveniently bleed it of any air bubles. The circuit
can then be used in a closed-loop, and requires no maintenance
or refills. The kit ships with (2) 2 1/2ft long, 1/2"
tubes for fill and bleed operations.

Inherent advantages of this kit compared to previous
versions are:
- Height: fits entirely into (1) one 5 1/4" bay
- Retention clips allow alternative placement of the
kit anywhere in the chassis
- Direct access to the inlet and discharge valves from
the front of the chassis
- New inlet and discharge quick-connect ball valves
feature easy tube insertion and removal.
- Safe to ship with the system filled-up with coolant.
Advantages of such kit versus 5 1/4" reservoirs
are also multiple:
- Safety: Ability to leak-proof the system
with no liquid in it, by placing the circuit
under vacuum (simple suction per installation
guide page 4). This allows users to install the
cooling kit in a system already populated with all its
components safely.
- Efficiency: 5 1/4" reservoirs are too
shallow to prevent air entrainment by the cooling fluid
with high capacity pumps. It means that the level of
the reservoir coolant above the pump inlet is not high
enough to prevent the inlet suction from pulling in
air. The high turbulence generated at the reservoir
inlet can also create bubbles (admix air) into the coolant
which transfer back into the pump inlet. Noisy operation,
damage to the pump, and degraded cooling performance
are high probabilities.
- Convenience: There is no evaporation in a closed
circuit, therefore no maintenance.
- Safety: the FB525 kit allows system builders
to ship pre-filled systems with no worries for leaks.
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