... for Thread Butt Weld and Socket Weld. All Hammer Unions are interchangeable with WECO and FMC. FigureCold Working ... )Cementing, fracturing, acidification, testing, and chock-and-kill linesReplaceable, lip-type sealAvailable for sour gas service 150215, ... /1034Cementing, fracturing, acidification, testing, and chock-and-kill linesReplaceable, lip-type sealAvailable for sour gas 200220,000/1379Cementing ...