EKWB EK-Quantum Torque HDC 12 Hard Tube Fitting Black
BDT 290
Quantity
Securing rigid tubing inside a custom liquid cooling loop requires fittings that hold strong without chewing up the tube walls. The EK-Quantum Torque HDC 12 fitting is engineered specifically for 12mm OD solid tubing such as acrylic and PETG, locking the run firmly in place with a specialized compression ring system.
Its minimalist aesthetic sits flush with standard G1/4 inch ports, keeping your layout clean while eliminating the bulk associated with older compression styles. The matte black finish resists tarnishing and integrates neatly into stealth or monochrome PC builds.
Key Features of the EK-Quantum Torque HDC 12
12mm Outer Diameter Support: Fits standard 12mm OD solid tubing, including PETG, acrylic, and copper runs.
G1/4 Inch BSPP Thread: Standard thread pitch ensures universal compatibility with water blocks, radiators, and distribution plates.
Integrated Compression Ring: Compresses high-grade EPDM O-rings firmly against the tube wall to prevent leaks under pressure.
Captive Allen Key Slot: Features a 9mm internal hex pattern so you can securely tighten the fitting without marring the external finish.
Modular Aesthetic Rings: Allows you to swap out colored accent rings (sold separately) to match your build theme.
Why Choose the Torque HDC 12 Compression Fitting
Push-in fittings can shift under thermal stress, but the Torque HDC 12 uses a screw-down outer collar that clamps mechanically over internal rubber gaskets. This creates a solid mechanical lock against tube pull-out, which is critical when your coolant temperatures rise and rigid tubing expands.
Keep in mind that this fitting is solely intended for 12mm outer diameter rigid tubing. It will not work with soft flexible hose or larger 14mm/16mm hard tubes. Proper deburring and chamfering of the tube edges are required before installation to avoid damaging the internal O-rings.
Best Use Cases
Custom liquid cooling loops using 12mm OD PETG or acrylic hard tubing.
Connecting runs directly into GPU and CPU water blocks with tight port spacing.
Clean minimalist builds that benefit from an understated satin black finish.
Distribution plate plumbing where consistent fitting dimensions simplify alignment.
EK-Quantum Torque HDC 12 Technical Specifications
Specification | Detail |
|---|---|
Thread | G1/4" BSPP (4.5mm male thread length) |
Supported Tubing | 12mm Outer Diameter (OD) Hard Tube |
Compatible Tube Materials | Acrylic, PETG, Copper, Brass, Glass |
Outer Diameter | 20.3mm |
Installed Height | 15mm |
Material | Nickel-plated brass with black finish |
Seal Material | EPDM O-rings |
Compatibility Notes
Designed exclusively for 12mm outer diameter rigid tubing. Compatible with standard G1/4 inch threaded ports across water blocks, radiators, pump-reservoir combos, and distribution plates. Not compatible with flexible soft tubing.
Package Includes
1x EK-Quantum Torque HDC 12 Fitting (Base and Compression Ring in Black). Replacement O-rings are pre-installed.
Warranty & Authenticity
100% original EKWB product. Covered by standard manufacturer defect warranty. Authentic stock verified for custom loop builders in Bangladesh.
Frequently asked questions
Can I use this fitting with 10/12mm soft tubing?
No. The HDC series is exclusively designed for rigid solid tubing like PETG and acrylic. For flexible hose, use the EK-Torque STC series.
What tool do I need to tighten the fitting into a port?
You can hand-tighten the base or use a 9mm Allen key (hex key) inserted inside the fitting to secure it without scratching the outer surface.
Do I need to chamfer my tubing before inserting it?
Yes. Sanding and chamfering the outer edge of your hard tube is essential so sharp plastic edges do not slice or pinch the internal EPDM O-ring.
Can I change the color of the accent ring?
Yes, EKWB makes separate EK-Quantum Torque Color Rings that can be swapped out between the base fitting and the compression collar.
