Flushing Rings, also referred to as drip rings are used between an isolation valve and the diaphragm seal of a pressure transmitter. Side ports on the rings allow media to be injected/ejected so that the diaphragm can be flushed free of deposits that affect transmitter measurement accuracy. Oliver’s flushing rings are the same diameter as the flanges, bringing the valves clear of the flanges and eliminating the need for flushing port extension adapters. The flushing rings are held in place by through-bolts or captive studs, making them easy to install.