PUMp

phytal

phytal

phytal

Associate
Joined
6 May 2009
Posts
290
Hey guys will a pump with these specs be good for water cooling a cpu loop only!
These are the specs:
It's a Swiftech MCP355™ 12v Water Pump (Native 3/8") (120 GPH)
Nominal voltage: 12 V DC
Operating voltage range: 8 to 13.2 VDC
Minimum starting Voltage: 9 VDC
Nominal power (@ 12 V): 18 W
Nominal current (@ 12 V): 1.46 amps
Nominal head (@ 12 V): 20.2 ft (6.1 m)
Nominal discharge (@ 12 V): ~ 120 GPH (454 LPH)
Connection size: 3/8" barbs (10mm)
Maximum pressure: 22 PSI (1.5 BAR)
Temperature range: Up to 140°F (60°C)
Power connector: Molex 4 pin
Weight: 7.3 oz (207 gr.)
Swiftech's noise measurement: 30 ~ 32 dBA in a quiet room @ 2'
(non lab environment)
Motor type: Electronically commutated, brushless DC, spherical motor
Pump MTBF: 50,000 Hours
(Mean Time Between Failures)
 
Mate it's a beast.

Is it a rebranded Laing DDC Pro? Either way it could handle a loop with loads more blocks than just cpu, rad and res. Look at the head height lol!
 
The DDC Pro is the 10W version, what you have there is the 18W Ultra version. The 10W pump is perfectly adequate for a cpu only loop, and is touted as being quieter, since it runs at a lower speed, and is also cheaper compared to the 18W. However, if you intend to expand the system in future e.g. including your gpu and chipset then getting the 18W now will serve you in good stead, assuming you want to keep everything in one loop.
 
That's why to change the top - it doubles the LPH and then some :D
but the ddc/MCP355 is all tork with above average flow - great for high restriction blocks.

The D5 at full pelt is around 1200 but with a 3m head (but that's noisy)

with a top the DDC is ~1000 and 5m head
 
Last edited:
i'm verryy confused. Everyone is recommending the DDC pump and every vid i saw on youtube on water cooling i saw the mcp 655 in action! WTF is going on?
 
Dude. Again? Stop asking the same damn question

Pressure head is more important than flow rate. I've told you this at least once, possibly twice. I don't care in the slightest what you've found on youtube.

You want the 18W laing ddc, or one of the rebranded pumps which is identical to it. If instead you ignore this and get the D5, it's not going to make a massive difference but you will have chosen the wrong pump.
 
My Dilemma: What's the best?
pumpn.jpg
 
Dude, out of interest, have you already decided what rads, blocks reservoirs etc you are going to get, as well as the pump, or is this committe style kit specification going to be repeated for the rest of the stuff you will need? P.S. get the DDC Ultra 18W, full stop. You have my persmission to sue me if it fails to pump water around your water cooling loop.
 
Product Details:The Koolance PMP-450 is a reliable high-flow pump with a built-in speed control knob:
•Maximum Flow Rate: ~20L/min (5.3 gal/min) @ 24V, 15L/min (4 gal/min) @ 12V
•Maximum Head Pressure: ~5.8m (19ft) @ 24V, 4.5m (15ft) @ 12V
•Motor: Brushless DC, electronically commutated, spherical motor
•Expected Lifetime: 50,000 hrs. MTBF (5.7 years)
•Power Consumption: 23W@12V, 47W@24V
•Voltage Range: 8 to 24 VDC
•Startup Voltage: 9 to 13.2 VDC
•Maximum System Pressure: 3.5 kgf/cm2 (50 PSI)
•Maximum Temperature: 60°C (140°F)
•Electrical Connector: 4-pin Molex power supply connection
•Hose Connections: 13mm (1/2") ID hose barbs
•Weight: 862g (1.9lbs)

This pump with smash the DDC in both head pressure and lph ? Am I right?
 
Specifications:

•Powered by OASE !
•Pump performance: max. 1500 l/h
•Delivery height: 6m
•Power consumption: 17 W
•Connection: G1/4"-connections
•Sound level: approx. 21-35 dBA
•Dimensions L x W x H: 115 x 100 x 80 mm
•DC-voltage converter L x W x H: 118 x 75 x 60 mm
•Weight: ca. 720g
 
Last question seriously which is the best between these pumps

Alphacool AP1510 Centrifugal Pump 12 Volts :
•Pump performance: max. 1500 l/h
•Delivery height: 6m

Koolance PMP-450 High-flow Pump:
•Maximum Flow Rate: ~20L/min (5.3 gal/min) @ 24V, 15L/min (4 gal/min) @ 12V
•Maximum Head Pressure: ~5.8m (19ft) @ 24V, 4.5m (15ft) @ 12V

Koolance PMP-400 High-flow Pump:
•Maximum Flow Rate: 8.5 L/min (2.25 gal/min)
•Maximum Head Pressure: 6m (19.7ft)
 
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