Explosion-proof / Flameproof Explosion-proof wire bushings

Discover our explosion-proof wire and cable seals for simplified engineering in hazardous locations. Our wire and cable seals, commonly referred to as line bushings, offer unique design features that enhance efficiency and reliability. Available standard with threads in various sizes, these electrical feedthroughs are pre-wired and sealed for drop-in use, from the factory to the field.

With a longstanding expertise in hermetically sealing wires and cables, Douglas can create a high-density feedthrough with various wire and cable jacket materials. Our wire and line bushings use a hermetic epoxy that offers excellent chemical compatibility, thermal properties, and mechanical properties, exceeding various UL and ASTM standards for process seals. Some various benefits to our seals include:

1. Enhanced crack resistance: Unlike cement-based sealants prone to cracking and fatigue, our UL 1203 bushings utilize epoxy seals. These seals exhibit exceptional resistance to mechanical and environmental stresses, eliminating the need for compromising wire-and-cable product choices.
2. Combined explosion and process seal: In addition to safeguarding against sparks, flames, and dust, our UL 1203 bushings provide a hermetic process seal. With leakage rates as low as <1×10^-9 cc-He/sec, they can withstand application pressures up to 10,000 psi and burst pressures exceeding 15,000 psi. This eliminates the need for separate seals in pressurized environments.
3. Simplify your electrical system design in hazardous locations with our reliable and efficient UL listed wire bushings. See various examples of products that integrate various wire and cable types with or without armored jackets, as well as hermetic solutions that are customer-specific designs added to our certification file or yours.

Applications for our explosion-proof wire bushings include: Alternative energy fuel systems, analytical instrumentation, compression equipment, cryogenic systems, gas engines and turbines, fiber optic communications, marine equipment, sensors and transducers, and upstream wellhead monitoring equipment.