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Six black nylon compression fittings for 127/76 mm hose

Alphacool

Alphacool 17453 HF Compression Fitting TPV Black Nylon 6-Pack 127/76 mm

SKU CH-T855-1Y4E2 MPN 17453

Six compression fittings in black nylon, 28 mm long with G1/4″ thread, built for 12,7 / 7,6 mm TPV hose using a double-lock metal ring

  • FeaturesDesigned specifically for Alphacool TPV hoses
  • Six fittings per pack for quick loop assembly
  • Nylon body resists corrosion with copper or aluminium parts
  • Double locking ring grips TPV hose for high tensile strength
  • G1/4 inch thread fits standard water-cooling components
  • Compact 28 mm length suits tight routing

Six-pack TPV compression fittings

These six Alphacool HF compression fittings are engineered exclusively for Alphacool TPV tubing. Each fitting uses a double locking system with a metal ring that hooks onto the hose for high tensile strength. The nylon construction resists corrosion and avoids galvanic reaction with copper or aluminium loop components. A G1/4" thread with 5.5 mm engagement secures the fitting into standard water-cooling ports.

Builders using Alphacool TPV hose

This pack suits builders assembling a custom loop with Alphacool TPV tubing who need a secure, non-reactive connection. It is not for systems using PETG, acrylic or standard soft tubing with different inner or outer diameters. Buyers who require angled or rotary adapters, or who need fittings for other hose sizes, should look at alternative fitting types.

G1/4" thread with 5.5 mm depth

The single specification that decides fitment is the G1/4" thread with a 5.5 mm thread length. Verify that your blocks, radiators and reservoirs accept this thread depth before purchasing. The 28 mm overall length and 20.5 mm diameter determine clearance around adjacent components. Match the 127 / 76 mm hose size to your TPV tubing to ensure the double locking system engages correctly.

Highlights

  • Six fittings per pack for quick loop assembly
  • Nylon body resists corrosion with copper or aluminium parts
  • Double locking ring grips TPV hose for high tensile strength
  • G1/4 inch thread fits standard water-cooling components
  • Compact 28 mm length suits tight routing

Specifications

BrandAlphacool
Model1016781
FeaturesDesigned specifically for Alphacool TPV hoses
Part Number1016781

Questions about this item

How do I install the 28 mm G1/4" compression fittings onto 127/76 mm TPV hose and which step is often missed?

Slide the compression nut and metal ring onto the hose, push the hose fully over the 28 mm barb until it seats against the base, then tighten the nut to engage the ring hooks; the step often missed is confirming the metal ring has clicked into the hose grooves before final torque.

What maintenance or replacement will these nylon compression fittings need over time?

Inspect the metal locking rings and nylon bodies annually for cracking or hook deformation; replace any fitting that shows stress whitening, stripped G1/4" threads, or a loose grip on the 127/76 mm hose.

What is the first limit that appears when these fittings run under sustained pressure and temperature cycles?

The nylon body can creep under constant load, so the G1/4" thread seal or the double-locking ring grip on the 127/76 mm hose typically yields before the metal ring itself fails.

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