DQM-II Series Explosion Proof...

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
• Product Type: DQM-II
• 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, thereby maintaining the overall safety integrity of the system. The certified cable glands are used extensively across industries such as petroleum and chemicals, natural gas, coal mining, metallurgy, military, nuclear power, shipbuilding, ports, railways and so on. More than just an accessory, it is an integral certified component that forms a crucial, connecting link in the safety chain of the entire explosion-proof electrical system.

Credibility

The explosion-proof cable gland is a core component that connects the cable to the equipment enclosure and maintains its integrity. Despite its compact size, it serves as the pivotal safety node within the entire explosion-proof electrical system, linking all parts into a unified safety chain.

Globally, cable glands used in hazardous locations are governed by stringent regulations and standards. 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 of ex cable glands are fully compatible with your specific application environment.

CTA (Call to Action)

For more detailed information on our explosion-proof cable glands customized solutions, or to request a quote, please do not hesitate to contact us. We are committed to providing you with professional lighting solutions and comprehensive technical service support.

FAQ

• Q1: What is a “Dual-Certified” cable gland, and why is it mandatory in some projects?
  • A1: A “Dual-Certified” cable gland refers to a product that holds two different explosion-protection certification systems (e.g., ATEX & IECEx). Some end users or main contractors are explicitly requiring dual authoritative certification for the explosion-proof cable glands to pursue the highest standard of regulatory compliance and reliability.
• Q2: How can we quickly verify the compliance and reliability of an installed explosion-proof cable gland?
  • A2: Conduct the following checks: to check if there are cracks, corrosion, or modifications. Confirm that the gland’s specifications and certification system match those of the equipments. Check that all locking nuts are securely tightened and cannot be loosened by hand.
• Q3: When do we need to use cable gland that required with explosion-proof plug?
  • A3: ①Sealing unused ports on an enclosure (mandatory for certification integrity). ②Cables are temporarily removed for maintenance (to keep the enclosure sealed).
• Q4: Why is it said that “a substandard or mismatched explosion-proof gland can compromise an expensive piece of explosion-proof equipment”?
  • 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, posing a catastrophic risk.