Oil and gas manifold diverts oil or gas, without flow interruption, from the separator to crude oil burner for disposal, to surge tank or gauge tank for measurements or storage, or to a production line. Oil and gas manifold also isolates the test equipment to prevent flow interruption if the testing equipment is pulled out of service temporarily.

The oil manifold typically consists of five ball valves arranged as a manifold and is skid-mounted. The gas manifold is fitted with two ball valves and also mouted on a skid.