MCP655-B
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Part Number: MCP655-B
Bulk shipping information: 20 Pcs/Ctn
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Product Description
The MCP655 pump is a high reliability, high pressure industrial pump, featuring a 50,000 hour MTBF (5 year lifetime). Such reliability is afforded by the unique design of this pump, which contains only one moving part: the magnetically driven spherical impeller spins on a single ceramic bearing, thus extending the life of this pump beyond existing standards.
The pump is completely plug-and-play, and connects directly to the computer power-supply with a standard 4 pin power connectors. It's compact design, quiet and powerful motor make it ideally suited for heavy duty cooling in environments where space is at a premium.
The MCP655 is available in two versions:
- With a speed controller (part # MCP655)
- Without speed controller (part # MCP655-B)
Tab 1
- 50,000 hours MTBF (Mean Time Between Failure) equivalent to 5 years lifetime
- Superior 12 Volts DC convenience: plugs into the computer power supply
- The MCP655 can be used with full confidence in any MP servers, and high-end workstations
- Superior real world performance
- High pressure capability of the MCP655 is particularly well adapted to high-flow systems using 1/2" ID tubing
- Pump speed can be adjusted to yield top performance or virtually silent operations (model MCP655 only)
- Compact Design.
- Quiet operations even at high speed thanks to new chipset controller
- ½" Barb fittings
- No maintenance when used with de-mineralized water, and anti-fungal additives (Our HydrX additive is recommended)
- Quick installation with adhesive neoprene pad, or permanent installation with thru-bolts
Tab 2

"P1, P2, P3, P4, and P5" denote the speed controller settings on the MCP655 pump
MCB655-B (P4) is the maximum speed setting at which the MCP655-B operates
Tab 3
| Nominal Voltage
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12 V DC
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| Operating Voltage
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8 to 24 V DC
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| Nominal Power (@ 12 V)
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24 W
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| Nominal Current (@ 12 V)
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2 Amps
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| Motor Type
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Electronically Commutated DC Spherical Brushless Motor , with automatic overload protection and low in-rush current
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| Maximum Head
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10 ft (3.1 m)
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| Maximum Discharge
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~ 317 GPH (1200 LPH)
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| Connection Size
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1/2" barbs (10mm)
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| Maximum (working) Pressure
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50 PSI (3.5 BAR)
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| Temperature Range
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32 °F to 140 °F (0 °C to 60 °C)
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| Electrical Connector
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Molex 4-pin
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| Weight
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1.4 LB (650 g)
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| Impeller material
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Noryl
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Dimensions

Tab 4
The MCP655 can either be installed with the built-in neoprene pad featuring a peel-off adhesive back, or permanently with thru-bolts as shown below.
Important warranty information: Users are reminded that disassembling their pump for any reason, including for the purpose of upgrading the housing, automatically voids the pump warranty.
Documentation
Tab 5
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"Operation of the MCP655 was vibration and, almost, noise free. With the side on the chassis, we couldn't hear the pump. And with the side off of the chasis and with Velcro the only thing holding the pump in place, we could barely hear it at all." October 2008
+ Great Performance
+ Extra Headroom For Overclocking
+ Delrin top removes aluminum from system (no mixed metals)
+ Fantastic retaining system (even if you do have to remove the mother board)
+ Excellent craftsmanship
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MCP655 12 VDC pump with speed controller
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End User Reviews
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