DQM-III&I Explosion-proof Cable Glamds...

Explosion Protection Type

• Standards: CENELEC, IEC, NEC
• Zones:
  • Zone 1 and Zone 2
  • Zone 21 and Zone 22
  • Class I, Zone 1 and Zone 2
  • Class I, Division 1, Groups A, B, C, D

Product Parameters

• Explosion protection:
  • IECEx (Gas and dust): Ex d IIC Gb, Ex e IIC Gb, Ex tb IIIC Db IP66
  • ATEX (Gas and dust): II 2 G Ex d IIC Gb, II 2 G Ex e IIC Gb, II 2 D Ex tb IIIC Db IP66
• Material: Stainless steel or nickel plated brass
• Degree of protection: IP66
• Ambient temperature: -60°C ~ +100°C
• Connection thread: Metric thread is standard type; G thread or NPT thread is optional

Product Classification & Origin

• HS code: 401693, 391740, 730799, 790700, 760900
• Country of origin: China

Applicable Industries

The explosion-proof cable gland is a critical sealing device installed at the entry point of explosion-proof equipment enclosures. Through its precision clamping and multi-seal design, it ensures that the introduction of cables does not create any weak points or leaks that could compromise the equipment’s explosion-protection rating or ingress protection (IP) rating. These certified cable glands are used extensively across industries such as petroleum and chemicals, natural gas, coal mining, metallurgy, military, nuclear power, shipbuilding, ports, and railways.

Credibility

Our certified explosion-proof cable glands hold certificates of conformity issued by authorized bodies, including ATEX, IECEx, and EAC. These certifications ensure the explosion-protection marking, ingress protection rating, and other key parameters are fully compatible with specific application environments.

FAQ (Frequently Asked Questions)

• Q1: What is a “Dual-Certified” cable gland?
  • A1: It refers to a product that holds two different explosion-protection certification systems (e.g., ATEX & IECEx) to ensure the highest standard of regulatory compliance.
• Q2: How to quickly verify an installed gland?
  • A2: Check for cracks, corrosion, or modifications; confirm specifications match the equipment; and ensure all locking nuts are securely tightened.
• Q3: When is an explosion-proof plug required?
  • A3: For sealing unused ports on an enclosure to maintain certification integrity, or when cables are temporarily removed for maintenance.
• Q4: Why is a matching gland critical?
  • A4: A single non-compliant gland can become the weakest link, creating a fatal leak path that nullifies the protection of the entire expensive asset.