![]() ![]() Besides being available in designs for vertical and horizontal conduit runs, sealing fittings come in different materials. What choices do you have? Although their purpose is the same, sealing fittings come in a wide variety of designs to meet the exact requirements of specific applications. One note of caution: The NEC states you can't install any splices or taps within a sealing fitting. Finally, pour the sealing compound into the fitting to a depth equal to the trade size of the conduit, having a thickness of at least 5/8 in.Īfter the sealing compound hardens, you screw in a removable close-up plug into the pouring opening. (The fiber filler makes a dam that prevents the cement from leaking while in its fluid state.) In a horizontal run, you place the fiber filling at both ends of the fitting in a vertical run, you fill only the bottom end. First, run the conductors through the fitting. How do you install them? Installation of a sealing fitting is straightforward. ![]() Use a drain seal where moisture may accumulate in the fitting to provide an explosion-proof path for water to exit while still sealing the conduit to UL standards. of any enclosure containing arcing or sparking devices. For this reason, unless the device is factory-sealed, you must install sealoffs within 18 in. When activated, an arc- and spark-producing device such as a switch or breaker can ignite these gases in the enclosure and conduit system. Why the need for sealoffs? A conduit system isn't vapor-tight, so the gases inside and outside a conduit can be of the same concentration. Moreover, these barriers limit the passage of vapors from classified to nonclassified locations. They stop or localize explosive pressures from traveling through conduits. When properly installed and filled with a UL-listed sealing compound, they create a physical barrier that minimizes the passage of gases from traveling freely through the conduit. ![]() Sealoffs prevent explosions from spreading through conduit systems and igniting outside atmospheres. A classified area is not the place to cut corners. It provides the most cost effective solution for a cadmium alternative finish.With lives and property at stake in a hazardous location, it's important you use only the highest quality sealing fittings from reputable manufacturers. Our Zn Ni connectors are the first ones to be qualified by the US Defense standards organization (DLA Land and Maritime). Esterline Connection Technologies - SOURIAU has more than 10 years of experience in producing Zn Ni with continuous improvements to comply with military and aerospace harsh environment conditions. This serie's connectors offer concrete RoHS alternatives to cadmium. The patented self-locking system and the metallic contact retention clip technology make the product perfect for high vibration applications or rough handling in the field. The D38999 series is compliant with the MIL-DTL-38999 standard connector design with unique self-locking mechanism (patented by SOURIAU), visual mating indication, scoop proof, quick screw coupling and 360° shielding. 54 QPL layouts are available in accordance with MIL-STD-1560. The Souriau D38999 connector series, also called 8D series is a highly reliable connector compliant to the main mil-spec standards (MIL-DTL-38999 series III, EN3645, BACC63, CECC) and answers the most stringent requirements in harsh environments.Īvailable in 5 high end materials and 5 platings (8D aluminum, 8D composite, 8D titanium, 8D stainless steel and 8D bronze), the 8D series connectors fit all the corrosion, shock, endurance or firewall capabilities you will encounter.Ī full range of contacts are also available with D38999 connectors such as signal transmission, high speed data transmission (quadrax, twinax, coax, ELIO®). ![]()
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