The torch has a pistol-grip handle and a machined brass head with a collet and nut to secure the rod. A lever-operated valve controls oxygen flow through the torch. The striker plate connects to the battery for rod ignition. Rod is Key Developed in 1978, the ultrathermic cutting rod debuted for underwater work on offshore oil platforms. When the oil industry slumped, in the early 1980's, suppliers redesigned the rod for use out of water.
Oxygen flows through the tube and around the wires.
The smaller rods pierce work to 6 inches thick, gouge light welds, and cut material to one inch thick. Larger rods pierce and cut thicker work, gouge cracks and heavy welds, and remove hardfacing. Cutting capacity in steel is 6 inches. Getting started Before setting up equipment, the operator clears the work area of flammable materials and inspects the ultrathermic equipment, replacing worn or damaged items. Working on a pipeline or on a part in a container, he purges the pipe or container with inert gas.