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XSPC Fittings, Tubing, RadStand Roundup

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Posted May 20, 2011 by Jake in Cooling

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by Jake
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Compression Fittings

Specifications:

  • ID Dimension: 3/8” (10mm), 7/16” (11mm) and 1/2” (13mm)
  • OD Dimension: 5/8” (16mm) and 3/4" (19mm)
  • Material: Brass
  • Thread: G1/4 BSPP
  • Finishing: Black chrome plating
  • Cost: $3.99

What is a compression fitting?

Compression fittings are used in plumbing and electrical conduit systems to join two tubes or thin-walled pipes together. But in PC water cooling, compression fittings are the terminal points of two water cooling components connected together via the rubber hose. It’s composed of an outer compression nut and an inner shaft (barb), and it is usually made out of brass. When the outer nut is tightened, the tube is compressed between the barb and the nut, and the result is that the tubing seals very tight, minimizing leaks. Compression fittings also typically look more aesthetically pleasing in a water loop rather than plastic connectors.

Liquid and electronic components don’t usually mix well together, so the best fittings do not allow any sort of leaks. Compression fittings are almost perfectly suited for PC water cooling. They do not need any specific tools for the installation; hand tightening is sufficient enough to handle the pressure necessary to prevent leaks. One drawback of using compression fitting is the cost; they often carry double the price over standard nozzles. However, these XSPC fittings are very affordable, about a third less than the competition. So if budget is your main concern then you needn’t worry about sacrificing quality.

XSPC fittings are available in three sizes: 3/8”, 7/16”ID & 5/8”OD and the 1/2"ID & 3/4"OD. They are all made out of high quality brass with black chrome plating.

The outer compression nut receives the knurled cuts to prevent slippage and the 1.75mm O-ring sits snugly in a retainer. The retainer helps the seal-ring retain its original shape while its compressed against the port and sealed tight.

The fitting designed to be tool-less. It has two 2mm cutout slots at the top and bottom, and these can be tightened with any regular coin that’s laying around for added convenience

As often happens when the tubing is compressed and locked tight to the outer nut, it becomes extremely difficult to remove the knurled nut. Again, simply use any coin to loosen the compression nut, so no pliers are required which may damage the threads or finish.

The typical standard high-flow 1/2"ID fittings usually have about a 10mm diameter core which is the maximum bore you can remove and still have enough strength for the threading. The core is very smooth bored for maximizing the flow and reducing sediment build up.

For this particular size (1/2”) of fitting, the exact actual core’s measurement is 9.73mm from top to bottom and 15.95mm for outer barb. That’s pretty close to the white sheet specifications.

Since it is a slot-drive design, the outer compression nut stopper is eliminated to create a very low profile compared to the taller Bistpower design.

The 1/4” BSPP threading is perfectly tapped and compatible with any blocks or components that have 1/4" British Standard Parallel Pipe threading.

Nozzle quality can make or break your coolant loops; poor quality can cause a big disaster to your investment. XSPC’s engineers seems to have found the solution to produce top quality fittings that are functional without increasing the cost to consumers. These new lines of nozzles definitely put the other popular brands to shame with a low profile and highly functional design, while keeping an extremely low price. While compression fittings may not have the sexy appeal of blocks, they can be critical in your loop, and XSPC has absolutely nailed a winner here.

XSPC Compression Fittings

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