BDM-I/D Series Nickel-Plated Brass Explosion-Proof Cable Gland (for Unarmored Cables)
Product Overview
Engineered for unarmored cables in extreme industrial environments, the BDM-I/D Series Nickel-Plated Brass Explosion-Proof Cable Gland provides certified safety, heavy-duty strain relief, and superior sealing performance. Manufactured from high-grade nickel-plated brass with a high-performance silicone rubber sealing ring, this compact gland prevents gas ignition and moisture ingress in hazardous locations.
Fully certified to Ex db IIC Gb / Ex eb IIC Gb / Ex tb IIIC Db explosion-proof standards with an IP66 rating, it operates reliably across temperature extremes from -60°C to +100°C—making it an ideal connectivity solution for control panels, junction boxes, and electrical apparatus in offshore, chemical, and petrochemical facilities.
Key Features
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Certified Explosion Protection: Fully compliant with IEC60079, EN60079, and GB3836 international safety standards for gas and dust hazardous areas (Ex db IIC Gb, Ex eb IIC Gb, and Ex tb IIIC Db).
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High Corrosion Resistance: Precision-machined heavy-duty brass body coated with a premium nickel layer to withstand salt spray, chemical washdowns, and harsh atmospheric exposure.
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Wide-Temperature Silicone Seal: Internal silicone rubber seal designed to resist hardening, cracking, and degradation in extreme temperatures from -60°C to +100°C.
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Flexible Clamping Mechanism: Built-in nylon clamping jaws distribute tension evenly around the cable jacket, delivering high pull-out resistance across a wide range of unarmored cable diameters.
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IP66 Ingress Protection: Equipped with a durable outer O-ring and precision-threaded sealing nut to ensure complete dust-tight performance and resistance to high-pressure water jets.
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Versatile Thread Compatibility: Available in Metric (M), NPT, and G (PF) pipe threads. Custom thread lengths and pitches are supported for thick-walled junction boxes.
Applications & Scope
Designed for safe electrical wiring across demanding, hazardous, and heavy-industrial environments:
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Hazardous Gas Zones: Certified for Zone 1 and Zone 2 environments (Gas Groups IIA, IIB, and IIC).
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Combustible Dust Zones: Suitable for Zone 20, Zone 21, and Zone 22 dust hazards.
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Oil & Gas Operations: Offshore drilling platforms, petroleum refineries, and fuel storage facilities.
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Chemical & Defense Facilities: Processing plants, ammunition depots, and pharmaceutical cleanrooms requiring strict safety compliance.
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Equipment Wiring: Entry points for unarmored cables into Ex-d / Ex-e junction boxes, distribution panels, and industrial automation cabinets.
Technical Specifications
Frequently Asked Questions (FAQ)
Q1: Is this explosion-proof cable gland designed for armored or unarmored cables? This BDM-I/D Series cable gland is specifically designed for unarmored cables. It utilizes a silicone compression sealing ring paired with a nylon clamping insert to securely grip and seal the outer cable jacket. If you require glands for armored cables (SWA/STA), please consult our Armored Cable Glands catalog.
Q2: Can this cable gland be used in Zone 1 and Zone 2 hazardous areas? Yes. It holds dual gas and dust explosion-proof certifications (Ex db IIC Gb / Ex eb IIC Gb / Ex tb IIIC Db), making it suitable for Gas Zones 1 & 2 (Groups IIA, IIB, IIC) and Dust Zones 20, 21 & 22.
Q3: What thread options are available, and can I order custom thread lengths? We supply standard Metric (M), NPT, and G (PF) threads. As a direct manufacturer, we also offer OEM/ODM customization services for non-standard thread lengths, special thread pitches, and custom thread dimensions to match thick-walled cast enclosures.
Q4: How does the silicone seal perform in extreme weather conditions? Our specially formulated silicone rubber seal remains flexible at temperatures down to -60°C and resists thermal degradation up to +100°C. This prevents shrinkage, cracking, or moisture leakage under severe thermal cycling.
Q5: Do you support stainless steel materials or custom logo branding? Yes. While nickel-plated brass is our standard high-volume production option, we also manufacture this model in 304 and 316 stainless steel. Bulk and wholesale orders can be customized with laser marking (logos, part numbers, Ex markings) and private-label packaging upon request.
