Vent Line Filters are used for effective odor control and replace filters at the start of each boating season. They are replaced whenever the holding tank is overfilled and sewage is forced up into the vent line. These filters are used to keep the dirt and fine flight line dust from entering the tank through the overflow lines.

Vent Silencers are designed for suppressing the noise associated with venting high-pressure gas to the atmosphere. Typical applications include natural gas blow downs, compressor & steam boiler blow offs, start-gas & process vents and steam ejectors. It provides solution to high intensity, broadband noise associated with pressure relief systems and gas/steam line turbulence. Vent silencers are used to attenuate noise produced by the expansion of gas or steam from elevated pressures to atmospheric pressure. Vent silencers are highly effective absorptive design noise mufflers.

A vent valve selectively connects a first brake pipe port to a vent port on the body, a vent piston controls the vent valve and a discharge valve pneumatically controls the vent piston. It includes an emergency portion body with an interface to be mated with the emergency portion interface of the pipe bracket. The body includes a casting with at least one cover and the casting including all the cast cavities and passages for an emergency portion.