Overclock.net › Forums › Cooling › Water Cooling › 7/16" ID or 1/2" ID?
New Posts  All Forums:Forum Nav:

7/16" ID or 1/2" ID?

post #1 of 22
Thread Starter 
Quick, which is better overall:
7/16" ID - 5/8" OD
or 1/2" ID - 3/4"OD

Gona order some new tubing from Petras to replace my old 1/2" but I hear 7/16 is working well for a lot of people.
MG/3D Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
I7-930@3.8 Evga x58 SLI LE BFG Geforce GTX 280 H2OC Mushkin 3x4GB DDR3 1333 
Hard DriveOptical DriveCoolingOS
Seagate 320gb 7200.11 Dual DVD/DVDRW XSPC Rasa / 3T Coolingworks / D5 Windows 7 x64 Pro 
MonitorKeyboardPowerCase
Doublesight DS-263N 26" Logitech Access Corsair HX 650W Antec P180 
MouseMouse PadAudio
Logitech G5 Steelpad QcK+ Auzentech Prelude 
  hide details  
Reply
MG/3D Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
I7-930@3.8 Evga x58 SLI LE BFG Geforce GTX 280 H2OC Mushkin 3x4GB DDR3 1333 
Hard DriveOptical DriveCoolingOS
Seagate 320gb 7200.11 Dual DVD/DVDRW XSPC Rasa / 3T Coolingworks / D5 Windows 7 x64 Pro 
MonitorKeyboardPowerCase
Doublesight DS-263N 26" Logitech Access Corsair HX 650W Antec P180 
MouseMouse PadAudio
Logitech G5 Steelpad QcK+ Auzentech Prelude 
  hide details  
Reply
post #2 of 22
i like the 1/2" ID
Blue
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6600 @ 3.6 , 1.45v ASUS P5B-Deluxe WiFi EVGA 8800GTS 640Mb 4 x 1Gb Patriot PC2-8500 DDR2-1066@5 5 5 9 
Hard DriveOSMonitorKeyboard
RaptorX 150Gb , 3 x 320Gig Seagate 7200.10 Windows xp pro SyncMaster 915n Microsoft RECLUSA 
PowerCaseMouseMouse Pad
Corsair 620HX Thermaltake Armor 25cm Side fan Mx518 FUNC F10.s 
  hide details  
Reply
Blue
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6600 @ 3.6 , 1.45v ASUS P5B-Deluxe WiFi EVGA 8800GTS 640Mb 4 x 1Gb Patriot PC2-8500 DDR2-1066@5 5 5 9 
Hard DriveOSMonitorKeyboard
RaptorX 150Gb , 3 x 320Gig Seagate 7200.10 Windows xp pro SyncMaster 915n Microsoft RECLUSA 
PowerCaseMouseMouse Pad
Corsair 620HX Thermaltake Armor 25cm Side fan Mx518 FUNC F10.s 
  hide details  
Reply
post #3 of 22
I second 1/2" ID. It's a little thicker than 7/16", but if you've got the space you cant go wrong!
24/7 BOINC!!
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 @ 3.20 GHz, 1.400v ASUS Commando BFG 8600GTS OC 2GB Team Xtreem PC2-6400 
Hard DriveOSMonitorKeyboard
250 GB Maxtor Ubuntu and XP for games and CAD Acer AL2216W 22" Logitec 
PowerCaseMouseMouse Pad
SilverStone Zeus 750W Antec P180 Logitech G7 Everglide Richochet 
  hide details  
Reply
24/7 BOINC!!
(13 items)
 
  
CPUMotherboardGraphicsRAM
Q6600 @ 3.20 GHz, 1.400v ASUS Commando BFG 8600GTS OC 2GB Team Xtreem PC2-6400 
Hard DriveOSMonitorKeyboard
250 GB Maxtor Ubuntu and XP for games and CAD Acer AL2216W 22" Logitec 
PowerCaseMouseMouse Pad
SilverStone Zeus 750W Antec P180 Logitech G7 Everglide Richochet 
  hide details  
Reply
post #4 of 22
I like 7/16" more. It's a tighter fit on 1/2" barbs so you won't need clamps in most cases.
Powder Keg
(22 items)
 
 
Flippin' Sony
(9 items)
 
CPUMotherboardGraphicsRAM
Intel Core i7 5820K Gigabyte X99M Gaming 5 Sapphire R9 295X2 32GB (4x 8GB) Crucial Ballistix Sport DDR4-2400 
Hard DriveCoolingCoolingCooling
(4x) Seagate Constellation CS 3TB [RAID-5] Swiftech Apogee Drive II Black Ice Nemesis 120GTS Black Ice Nemesis 240GTS 
CoolingOSMonitorKeyboard
Koolance VID-AR295X2 Windows 8.1 Pro Dell U3011 Logitech G710+ 
PowerCaseMouseMouse Pad
Cooler Master V750 Bitfenix Phenom Nvidia Edition (debadged) Logitech G700 Corsair MM600 
AudioAudioAudioAudio
Creative Sound Blaster ZxR Beyerdynamic T1 Onkyo A-905FX2 Onkyo D-152E 
AudioOther
Astro Mixamp AVerMedia Live Gamer HD 
CPUMotherboardGraphicsRAM
Intel Core i5-4278U Apple Intel Iris 5100 8GB DDR3 
Hard DriveOSMonitorKeyboard
256GB PCIe SSD OS X Yosemite 13.3" LED-backlit 2560x1600 "Retina" display Apple 
PowerCaseAudio
MagSafe 2 power adapter Aluminum unibody Audio Technica ATH-ESW9 
CPUMotherboardGraphicsRAM
Intel Core i7-4500U Sony NVIDIA GT 735M Patriot 2x 8GB DDR3-1600 1.35V 
Hard DriveOSMonitorMouse
Samsung 830 256GB Windows 8.1 Pro Sony 1080p IPS w/ N-Trig digitizer Razer Orochi 2013 
Audio
Audio Technica ATH-ESW9 
  hide details  
Reply
Powder Keg
(22 items)
 
 
Flippin' Sony
(9 items)
 
CPUMotherboardGraphicsRAM
Intel Core i7 5820K Gigabyte X99M Gaming 5 Sapphire R9 295X2 32GB (4x 8GB) Crucial Ballistix Sport DDR4-2400 
Hard DriveCoolingCoolingCooling
(4x) Seagate Constellation CS 3TB [RAID-5] Swiftech Apogee Drive II Black Ice Nemesis 120GTS Black Ice Nemesis 240GTS 
CoolingOSMonitorKeyboard
Koolance VID-AR295X2 Windows 8.1 Pro Dell U3011 Logitech G710+ 
PowerCaseMouseMouse Pad
Cooler Master V750 Bitfenix Phenom Nvidia Edition (debadged) Logitech G700 Corsair MM600 
AudioAudioAudioAudio
Creative Sound Blaster ZxR Beyerdynamic T1 Onkyo A-905FX2 Onkyo D-152E 
AudioOther
Astro Mixamp AVerMedia Live Gamer HD 
CPUMotherboardGraphicsRAM
Intel Core i5-4278U Apple Intel Iris 5100 8GB DDR3 
Hard DriveOSMonitorKeyboard
256GB PCIe SSD OS X Yosemite 13.3" LED-backlit 2560x1600 "Retina" display Apple 
PowerCaseAudio
MagSafe 2 power adapter Aluminum unibody Audio Technica ATH-ESW9 
CPUMotherboardGraphicsRAM
Intel Core i7-4500U Sony NVIDIA GT 735M Patriot 2x 8GB DDR3-1600 1.35V 
Hard DriveOSMonitorMouse
Samsung 830 256GB Windows 8.1 Pro Sony 1080p IPS w/ N-Trig digitizer Razer Orochi 2013 
Audio
Audio Technica ATH-ESW9 
  hide details  
Reply
post #5 of 22
1/2" provides around 24% more flow over 7/16". If you have room for it, use it.
Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
  hide details  
Reply
Once again...
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
  hide details  
Reply
post #6 of 22
I like 7/16 because I already had 5/8" holes out the back of my case and most 1/2" fittings are much smaller than 1/2" ID anyway. 3/4" OD would be really tight on some waterblocks I have as well.

But if you have the room 1/2" would be nice!
    
CPUMotherboardGraphicsRAM
3930K ASrock X79 Ext7 Evga GTX570 CORSAIR Vengeance 16GB 
Hard DriveOptical DriveOSMonitor
Phoenix SSD+2TB Seagate drives ASUS DVD-RW combo Windows 7 28" Hanns-G HZ281 
KeyboardPowerCaseMouse
MS Natural Corsair TX650 Danger Den Torture Rack Logitech MX518 
Mouse Pad
Desk 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
3930K ASrock X79 Ext7 Evga GTX570 CORSAIR Vengeance 16GB 
Hard DriveOptical DriveOSMonitor
Phoenix SSD+2TB Seagate drives ASUS DVD-RW combo Windows 7 28" Hanns-G HZ281 
KeyboardPowerCaseMouse
MS Natural Corsair TX650 Danger Den Torture Rack Logitech MX518 
Mouse Pad
Desk 
  hide details  
Reply
post #7 of 22
I like the 7/16x5/8" it will flow about as much as 1/2" some people will argue that it flows better since the ID of 1/2" barbs is 7/16" so there is not as much turbulence at that the fittings..Your bottlenecked by the fitting ID anyway so 1/2" wont flow any better...It fits tighter on the barbs so there is less chance of leakage...It weighs about a third as much so there is less torque on the water blocks they will sit flatter on the chips....It smaller OD makes it easier to route around in your case...I changed over to 1/2x3/4" for my Pelt rig and I sure miss my 7/16 Masterkleer its good stuff....

Here is a good link about 7/16"...

...http://www.xtremesystems.org/forums/...d.php?t=137511
Clearing up 7/16" ID confusions
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8600 4545Mhz*9 w/1.29V DFI DK P45 XFX 8800 GS D9GKX & D9GMH 
Hard DriveOptical DriveOSPower
2x Seagate 160 Perp. RD-1 2x Asus Vista Premium Corsair HX 620 
Case
Open Bench 
  hide details  
Reply
post #8 of 22
Thread Starter 
thanks guys, I think I will give 7/16 a try since its cheaper and if the flow is close to the same it will be easier to route in my case.
At very worst I can just order some 1/2" again.
MG/3D Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
I7-930@3.8 Evga x58 SLI LE BFG Geforce GTX 280 H2OC Mushkin 3x4GB DDR3 1333 
Hard DriveOptical DriveCoolingOS
Seagate 320gb 7200.11 Dual DVD/DVDRW XSPC Rasa / 3T Coolingworks / D5 Windows 7 x64 Pro 
MonitorKeyboardPowerCase
Doublesight DS-263N 26" Logitech Access Corsair HX 650W Antec P180 
MouseMouse PadAudio
Logitech G5 Steelpad QcK+ Auzentech Prelude 
  hide details  
Reply
MG/3D Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
I7-930@3.8 Evga x58 SLI LE BFG Geforce GTX 280 H2OC Mushkin 3x4GB DDR3 1333 
Hard DriveOptical DriveCoolingOS
Seagate 320gb 7200.11 Dual DVD/DVDRW XSPC Rasa / 3T Coolingworks / D5 Windows 7 x64 Pro 
MonitorKeyboardPowerCase
Doublesight DS-263N 26" Logitech Access Corsair HX 650W Antec P180 
MouseMouse PadAudio
Logitech G5 Steelpad QcK+ Auzentech Prelude 
  hide details  
Reply
post #9 of 22
As Duckie said, the 1/2" has 24% more capacity, as far as capacity goes based on a percentage of what 1/2" can carry:

1/4" 25%
3/8" 56%
7/16" 76%
Main
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 -2500K ASUS p8z68-V PRO EVGA GTX 460 2GB G.Skill Ripjaws X series 8GB (2x4GB) 
Hard DriveOptical DriveOSMonitor
1@320 gb, 2@100 (raid 0), 2@160(raid 0) DVD +-RW Win 7 Ultimate 64bit Samsung 940BW 
KeyboardPowerCaseMouse
Logitech Wireless Silverstone Strider 850 Lian Li 2000B Logitech Wireless 
  hide details  
Reply
Main
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5 -2500K ASUS p8z68-V PRO EVGA GTX 460 2GB G.Skill Ripjaws X series 8GB (2x4GB) 
Hard DriveOptical DriveOSMonitor
1@320 gb, 2@100 (raid 0), 2@160(raid 0) DVD +-RW Win 7 Ultimate 64bit Samsung 940BW 
KeyboardPowerCaseMouse
Logitech Wireless Silverstone Strider 850 Lian Li 2000B Logitech Wireless 
  hide details  
Reply
post #10 of 22
The thought behind 7/16" tubing is the fact that most fittings are not 1/2" ID, they are generally 7/16" at best, sometimes 3/8" ID or somewhere in between. In the end this means you end up with a very abrupt change in diameter at each fitting which translates to a minor loss due to the fitting.

These fitting losses are huge.

Here are some examples of ballpark fitting losses for 1/2" pipe for things like elbows etc with some assumptions about pipe friction.
90 degree elbow = 1.5' of pipe
45 degree elbow = .8' of pipe
T Flow Run = 1' of pipe
T Flow Branch = 4' of pipe

So in the end the advantage of larger ID tubing is more than likely outwieghed by the additional friction losses at the fittings. Because not only is there turbulence at the sudden changes the water has to quickly accelerate and decelerate across the fitting and that takes energy.

Of coarse this is all theory, someone ought to run a flow rate test across their loop with one size several times to get a good number, switch tubing and do the same test over again.

I'd be willing to bet the difference is either to small to measure, or if anything the 7/16" tubing has the advantage.

My 2c
    
CPUMotherboardGraphicsRAM
3930K ASrock X79 Ext7 Evga GTX570 CORSAIR Vengeance 16GB 
Hard DriveOptical DriveOSMonitor
Phoenix SSD+2TB Seagate drives ASUS DVD-RW combo Windows 7 28" Hanns-G HZ281 
KeyboardPowerCaseMouse
MS Natural Corsair TX650 Danger Den Torture Rack Logitech MX518 
Mouse Pad
Desk 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
3930K ASrock X79 Ext7 Evga GTX570 CORSAIR Vengeance 16GB 
Hard DriveOptical DriveOSMonitor
Phoenix SSD+2TB Seagate drives ASUS DVD-RW combo Windows 7 28" Hanns-G HZ281 
KeyboardPowerCaseMouse
MS Natural Corsair TX650 Danger Den Torture Rack Logitech MX518 
Mouse Pad
Desk 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Water Cooling
Overclock.net › Forums › Cooling › Water Cooling › 7/16" ID or 1/2" ID?