The QP Ball Head Fitting is a key component used to connect the insulator string to the socket fitting (e.g., W-7B) in overhead transmission lines. Its spherical head allows free angular rotation within the mating bowl, accommodating line movement while maintaining secure attachment. Made of high-strength malleable cast iron or forged steel, all ferrous parts are hot-dip galvanized for superior corrosion resistance. Stainless steel cotter pins are used for reliable locking. Compact and robust, the QP fitting ensures smooth load transfer and long-term mechanical stability under tension or vibration. Easy to install, it is essential for both suspension and tension insulator assemblies in outdoor power systems.
