Products Categories Mechanical Products Door Closers Yale Door Control Door closers are used to ensure doors close automatically and can be used for fire control, security, privacy or environmental requirements. Yale Y2600 Series Power Adjustable Hydraulic Door CloserPower adjustable 2-6 Yale Y2400 Series Power Adjustable Hydraulic Door CloserPower adjustable 2-4 Yale Y300 Series Hydraulic Door CloserFixed power size range of 3, 4, 5. Yale Y300 OP Series Hydraulic Door CloserFixed power size range of 2, 3, 4.