Ball valves are used for flow and pressure control and shut off for corrosive fluids, slurries, normal liquid and gases. They are used in the oil and natural gas industry. Ball valves use a metal ball with a hole bored through the center, sandwiched between two seats to control flow. Used in many hydrocarbon process applications, ball valves are capable of throttling gases and vapors and are especially useful for low flow situations.

A street elbow is a type of plumbing or piping fitting intended to join a piece of pipe and another fitting at an angle. An elbow is a pipe fitting installed between two lengths of pipe or tubing to allow a change of direction, usually a 90° or 45° angle, though 22.5° elbows are also made. The ends may be machined for butt welding, threaded or socketed, etc. It is used to terminate high quality voltage underground cable to switchgear, rmu and 250, 400 & 630 amps junctions equipped with dead-break bushing.