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Fisher™ Y602 Series Vent Assemblies
Y602 Series vent assemblies help to prevent the obstruction of vent openings, allowing proper air or gas flow for regulator spring cases, remote vent lines, actuator diaphragm casings, and miscellaneous applications.
These vent assemblies are available in either angle or straight styles. Typically, angle vent assemblies protect vent openings that face sideways, and straight vent assemblies protect vent openings that face either up or down.
Fisher™ Y602 Series Vent Assemblies


Y602 Vent Assembly Styles
Umbrella Type, Angle Type
Stabilizer Spring and Flapper Material
Stainless steel
End Connection Sizes
3/8, 1/4, 1/2, 3/4, and 1-inch
End Connection Styles
External and Internal


  • Weather Resistant:??Double-lip moisture deflector of Y602 Series vents resists?water bridging across vent opening. Vents resist plugging due to inclement weather such as rain, sleet, and snow.
  • Bug Resistant: All Y602 Series vents except the Type Y602-16 vent have screened vent openings to resist insect entry and resultant clogging. Screened opening is larger than that of other available vents.
  • Stabilizer Helps Prevent Cycling: Spring-opposed stabilizer in vent outlet of selected Y602 Series vents restricts vent breathing rate, providing stability under normal conditions. Force of rapid discharge opens stabilizer when such discharges occur.


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