T&B Fittings Non-Metallic Expansion/Deflection Coupling Improves Safety
Melissa Larson | October 23, 2014
The new T&B Fittings Non-Metallic Expansion/Deflection Coupling from Thomas & Betts improves safety and reduces installation time for joining rigid polyvinylchloride (PVC) conduit that is subject to movement in any direction at structural joints.
The coupling is up to five times faster to install, while its versatility enables a five-to-one reduction in stock keeping units (SKUs). It is manufactured in the United States.
The coupling provides a flexible connection of PVC conduit runs that resists moisture ingress and stress caused by movement at structural joints. It safely accommodates axial or parallel deflection of up to ¾ inch, and angular deflection up to 30 degrees from the relaxed position. It can be used indoors or outdoors, for direct burial or embedded in concrete.
The T&B Fittings Non-Metallic Expansion/Deflection Coupling complies with 2014 National Electric Code (NEC) Article 300.4(H) for use where a raceway crosses a structural joint intended for expansion, contraction or deflection in buildings, bridges, parking garages, piers, hospitals, and water and waste water treatment plants. Additional features include a flexible neoprene outer jacket with tamperproof stainless steel straps for resistance to moisture and corrosion, and an inner sleeve to provide a constant and smooth inner diameter in any position to facilitate wire pulling and prevent damage to wire insulation.
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