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Engineered for hazardous area installations — IP68 waterproof, UL certified, and built to withstand the most demanding industrial environments.
A cable gland flexible conduit for explosion proof environments is a specialized industrial cable management and sealing system designed to protect electrical cables and wiring in locations where flammable gases, vapors, dusts, or fibers may be present. Unlike standard cable glands, explosion-proof variants are engineered to prevent the ignition of surrounding hazardous atmospheres — even in the event of an internal electrical fault or arc.
These systems combine the mechanical flexibility of conduit with the rigorous sealing integrity of certified cable glands, offering both cable routing adaptability and certified hazardous-area protection. They are a cornerstone component in modern industrial electrical installations across oil & gas, chemical processing, mining, offshore platforms, and increasingly, in advanced manufacturing and smart energy infrastructure.
The fundamental principle behind explosion-proof cable glands lies in their ability to contain any internal explosion or spark within the fitting itself, preventing propagation to the external hazardous atmosphere. This is achieved through:
Compliance with international standards is non-negotiable for explosion-proof cable gland flexible conduit systems. The most critical certifications include:
Why industry leaders specify Hoonsun cable gland flexible conduit systems for their most critical installations.
Full ATEX, IECEx, and UL certifications covering Group I/II/III hazardous locations. Independently tested and certified for Zones 1, 2, 21, and 22 hazardous areas.
Dual-compression sealing systems with elastomeric O-rings achieve sustained IP68 protection — fully submersible to 1.5m for 30 minutes or more, ideal for offshore and underground installations.
Designed to mate with stainless steel, galvanized steel, and liquid-tight flexible conduit systems, allowing full cable routing flexibility without compromising the explosion-proof integrity of the installation.
Available in brass (nickel-plated), 304/316L stainless steel, and high-impact nylon. Each material grade is selected for specific environmental challenges — from marine salt spray to chemical plant atmospheres.
Engineered to perform from -60°C to +200°C, with specialized high-temperature seals for petrochemical and furnace environments. Cold-rated versions available for Arctic and refrigerated installations.
Screened cable gland variants with 360° EMC shielding continuity, essential for instrumentation and control cables in electrically noisy industrial environments, reducing signal interference and equipment damage.
The global explosion-proof equipment market is undergoing rapid transformation, driven by regulatory tightening, energy transition, and smart industrial digitalization.
The global explosion-proof equipment market was valued at over USD 8.5 billion in 2023 and is projected to exceed USD 14 billion by 2030, growing at a CAGR of approximately 7.2%. Cable gland flexible conduit systems represent one of the fastest-growing sub-segments, driven by expanding LNG infrastructure, offshore wind energy, and chemical plant modernization globally.
The global shift to renewable energy — including hydrogen production, offshore wind, and battery energy storage systems (BESS) — is creating entirely new hazardous location categories requiring certified explosion-proof cable management. Hydrogen in particular presents unique challenges due to its low ignition energy, driving demand for higher-specification Ex-rated gland systems.
Industry 4.0 and Industrial IoT deployments in hazardous environments require increasingly dense cable and sensor installations. Explosion-proof cable glands must now accommodate smaller-diameter data cables, fiber optic conduits, and hybrid power/signal cables simultaneously — pushing innovation in multi-hole gland designs and modular sealing inserts.
Regulatory bodies worldwide are continuously tightening hazardous area electrical installation codes. The adoption of IECEx as a global baseline, combined with regional requirements (NEC in North America, ATEX in Europe, GB3836 in China), means manufacturers must maintain multi-standard certification portfolios — a significant barrier to entry that rewards established certified suppliers.
Cable gland flexible conduit systems for explosion-proof environments serve as the critical last line of defense across a wide spectrum of hazardous industrial applications.
From wellhead control panels to refinery process areas, Ex-rated cable glands seal cable entries into junction boxes, motor terminal boxes, and instrument enclosures in Zone 1 and Zone 2 classified areas. Flexible conduit connections allow for vibration isolation between rotating machinery and fixed electrical infrastructure — a critical requirement for compressors, pumps, and turbines.
Marine-grade explosion-proof cable glands must simultaneously address gas zone classification, saltwater corrosion, high mechanical shock loads, and sustained submersion. Our 316L stainless steel marine cable glands with IP68 certification and TJ clamping systems are specifically engineered for FPSO vessels, offshore drilling rigs, and subsea equipment enclosures.
Underground coal and metalliferous mines present Group I methane and coal dust hazards, requiring the highest Ex classification (Ex d, Ex e, or Ex tb). Flexible conduit systems in mining must also resist crushing loads, abrasion from coal and rock particles, and the constant vibration of heavy extraction equipment — demanding robust armored cable gland solutions.
Chemical plants handling solvents, flammable liquids, and reactive gases require Zone 1/2 rated installations throughout process areas. Pharmaceutical facilities additionally require FDA-compliant materials and cleanroom-compatible finishes. Multi-hole cable gland plates allow dense cable entries through panel walls while maintaining full Ex integrity and IP ratings.
Sewage treatment plants generate methane in digestion chambers, classifying pump stations and digester areas as Zone 1 hazardous locations. IP68-rated explosion-proof cable glands prevent both gas ingress into electrical equipment and water ingress in frequently flooded pump sumps — a dual protection requirement uniquely met by our certified product range.
Naval vessels and commercial ships require cable gland systems that meet both marine classification society standards (DNV, Lloyd's Register, ABS) and explosion-proof requirements for fuel storage areas, engine rooms, and ammunition handling zones. Hoonsun's products have been supplied to major Chinese shipbuilding projects, including the Aircraft Carrier Liaoning program.
Whether you're sourcing for a North American Class I Division 1 installation, a European ATEX Zone 1 facility, or an IECEx-governed project in the Asia-Pacific region, Hoonsun's comprehensive certification portfolio ensures full regulatory compliance without the need for multiple suppliers.
Our certification framework covers the complete spectrum of international explosion-proof and electrical safety standards, backed by independent third-party testing and annual audit programs. Every product batch is traceable through our ISO 9001 and IATF 16949 quality management systems.
View All Certificates →Founded in 2006, Zhejiang Hongxiang Connector Co., Ltd. is rooted in Yueqing, Zhejiang — a national hub for precision electrical manufacturing in China. After nearly two decades of dedicated development, the company has evolved into a large modern industrial connectivity solutions provider integrating R&D and design, large-scale intelligent manufacturing, global sales, and one-stop services. It stands as a benchmark enterprise of considerable scale and influence in China's cable gland and connector industry, and a key player among national high-tech enterprises.
Boasting a modern intelligent manufacturing industrial park, the company operates a standardized production workshop of over 10,000 square meters, equipped with multiple high-precision automated production lines, CNC machining centers, and a full-process quality control laboratory, establishing an industry-leading large-scale manufacturing system. With a core team of more than 300 professionals — over 30% of whom are R&D and quality management personnel — its annual production capacity exceeds 80 million units.
Its core product portfolio includes metal cable glands, nylon cable glands, waterproof cable glands, explosion-proof connectors, conduit fittings, and various customized connecting accessories. These products serve high-end sectors such as industrial electrical equipment, new energy equipment, rail transit, shipbuilding and heavy industry, construction machinery, military supporting facilities, and communication & industrial control.
Nearly two decades of continuous innovation, expansion, and global recognition in explosion-proof cable gland manufacturing.
The company currently has more than 120 employees, more than 200 production equipment, and is equipped with a professional sales and management team, committed to improving production efficiency and product quality for explosion-proof cable gland flexible conduit systems.
Explore our complete certified product lineup — from armored cable glands to nylon sealing joints, all engineered for hazardous area installations.
BW Cable Gland with Waterproof IP68 and UL Certification
IP68 UL Certified Marine Cable Gland TJ Clamping Type for Harsh Environments
Metal Cable Gland Strengthened Type with UL and IP68
Metal Multi-Hole Cable Gland with IP68 and UL Certificate
304/316L Stainless Steel Hose Cable Gland
Nylon Cable Gland with IP68 and UL
Simple Armored Cable Gland — Dual IP68 & UL Certified for Reliable Explosion Proof Protection
Explosion-Proof Cable Clamp Sealing Joint EX3 — IP68, UL Certified, Factory Direct
Partner with Hoonsun — China's leading manufacturer of ATEX, IECEx, and UL-certified cable gland flexible conduit systems for hazardous environments. Get factory-direct pricing, rapid sample delivery, and full technical support for your most demanding projects.
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