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How to Install HX-CW Explosion-Proof Cable Gland to Pass ATEX Acceptance?
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How to Install HX-CW Explosion-Proof Cable Gland to Pass ATEX Acceptance?

2026-07-01

Are you troubled by frequent ATEX inspection failures of flameproof cable glands?

The assembly order directly determines the integrity of the flameproof structure.

Our HX-CW explosion-proof cable clamping gland is designed for Zone 1 and Zone 2 hazardous locations.

Improper part arrangement will break the whole sealing and flame isolation path.

What Core Components Make HX-CW a Qualified ATEx Cable Gland?

Every spare part works together to maintain explosion-proof performance.

  • The nickel-plated brass body provides stable mechanical strength and corrosion resistance.
  • Double sealing includes silicone rubber gaskets and EPDM O-rings for dual waterproof and flameproof protection.
  • The taper sleeve ensures uniform clamping force without damaging the outer cable sheath.
  • This multi-part structure forms a continuous flame barrier required by international explosion-proof standards.
Cutting corners on washers or seals will turn a certified fitting into a safety hazard.
What Is the Correct Assembly Sequence for HX-CW Flameproof Gland?

Many installers reverse the taper sleeve and cause loose cable clamping.

Here is the strictly ordered installation flow for the HX-CW cable gland:

1

Slide the EPDM O-ring onto the brass main body first to form the primary static seal.

2

Install the yellow silicone sealing plug and taper sleeve in the fixed direction.

3

Fit the intermediate brass part and flat metal washers without twisting the rubber.

4

Tighten the compression nut evenly to squeeze the seal tightly around the cable.

Uneven over-tightening will crack the silicone grommet and lose IP66 sealing performance.

Only standardized assembly can keep the gland flameproof and vibration-resistant long-term.

What On-Site Mistakes Will Invalidate the Explosion-Proof Certification?

Even genuine HX-CW cable glands fail acceptance due to common operational errors.

Common On-Site Mistakes Consequences & Hazards
Twisted rubber gaskets Creates gaps for flame penetration in hazardous areas.
Reversing the taper ferrule Reduces clamping force, leading to loose cable pull-out.
Mixing non-matching spare parts Breaks the integrated flameproof path required by ATEX rules.

Engineers must keep all original accessories intact without random replacement.

This small detail decides whether your petrochemical cabinet passes site inspection smoothly.

HX-CW(Explosion Proof Clamping Cable Gland)-2(19).jpg
Which Hazardous Area Projects Suit the HX-CW Cable Clamping Gland?

The HX-CW flameproof cable gland fits multiple high-risk industrial wiring scenarios.

  • It is widely applied in petrochemical equipment, hydrogen energy control cabinets, and underground mining boxes.
  • The dual-seal design works well for both solid core cables and shielded braided wires.
  • Nickel-plated brass material resists salt spray and chemical corrosion in coastal explosive zones.
  • For Zone 1 flammable gas environments, this model meets full ATEX certification requirements.

Project contractors prefer this fitting for stable long-term explosion protection.

Frequently Asked Questions (FAQ)
Q1: Can I replace the silicone seal of HX-CW with ordinary rubber?
A: No. Ordinary rubber cannot maintain stable elasticity under high temperature. Only matched silicone and EPDM spare parts can preserve flameproof integrity. Random replacement will make the ATEX certificate void during on-site audit.
Q2:Is the HX-CW cable gland suitable for armored cable entry?
A: This model is designed for unarmored solid and shielded cables. We have another flameproof series specially built for armored wiring applications. Please confirm cable structure before selecting the gland model.
Q3: Why does the HX-CW gland still leak water after full tightening?
A: The most common cause is a twisted or misaligned sealing plug. Check whether the yellow silicone part is installed flat without deformation. Uneven washer placement will also break the double waterproof structure.
Q4: What thread options are available for the HX-CW explosion-proof gland?
A: We supply both metric M threads and PG threads to match global cabinet holes. All threaded sections are precision-machined to keep flameproof thread engagement. Custom thread sizes are supported for bulk OEM project orders.
Conclusion

Correct component assembly is the key to making the HX-CW explosion-proof cable gland pass ATEX acceptance.

Its nickel-plated brass structure plus dual silicone & EPDM sealing creates reliable flame isolation.

Avoid reversed taper sleeves and deformed rubber gaskets to keep explosion-proof certification valid.

If you are working on Zone 1 hazardous wiring projects, standardized installation guarantees long-term safety.