Replacement Vent & Shipping Plugs


Since oil will expand and contract during normal operation, Bird oil-filled loads and attenuators use a spring-loaded vent plug to allow air flow. Before placing the load or attenuator into service, the solid shipping plug must be removed and replaced by the spring loaded vent plug. The two plugs are linked together by a short length of bead chain.

To order a new vent & shipping plug, click here: Vent & Shipping Plug