Retractable door seal, SL RD/42 dB, Planet,

For sliding doors – length: 1,085 mm, mounting: DIN right hand

Art. no. 950.10.034

  • Application and function, automatic door seals
  • Area of application

    • Protection against cold, draught and vermin
    • Reduces light leakage
    • soundproofing
    • smoke control
    • Fire resistance
    • Safes energy of air conditioning systems (see following example)

    Example calculation of energy savings:

    Door width 960 mm,

    pressure difference between indoor and outdoor 10 Pa,

    room temperature 25°C and relative humidity of 90 %,

    outdoor temperature 35°C and relative humidity of 70 %,

    floor gap 7 mm

    Without seal: leakage rate approx. 41 m3/h

    With seal: leakage rate under 2 m3/h

    The area of application in which the door is used is mainly governed by the sealing profile material (PVC or silicone). High quality, self-extinguishing silicone seals are used for fire resistant and smoke control doors.


    Retractable door seals are available with single-side or double-side release mechanism. Seals with single-side release (with double doors) are released on the hinge side or on the lock side, depending on the model. Double-side release always means release at the hinge side and at the lock end. With double-side release seals, the sealing profile is raised and lowered faster, which prolongs its life time considerably.


    The sealing profile is pressed automatically against the floor or engages with a threshold as the door is closed.

    Automatic door seals can be distinguished between retractable door seals and sill seals.

    Sill seals are always used in combination with a threshold, it is, however, recommended to use retractable door seals also in combination with a threshold in case of carpet fitted floors or butt joints with different floor coverings.

  • Installation types, automatic door seals
  • Installation types

    Automatic door seals can be fitted in different ways depending on the model and application.

    Full mortice fitted, With mounting bracket

    Full mortice fitted and face fixed


    screwed on

    Plug-fitted and/or glue fixed (glass)

    screwed underneath



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    Retractable door seal, SL RD/42 dB, Planet,

    For sliding doors – length: 1,085 mm, mounting: DIN right hand

    • DIN left

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    Article details

    Area of application

    For sliding doors with lock
    for sliding doors where sound proofing and smoke control are required


    Carrier: Aluminium
    sealing profile: Silicone
    floor guide: Plastic


    Carrier: Bright
    sealing profile: Grey
    floor guide: Black

    Sound proofing value

    42 dB with 7 mm floor gap


    Release at the lock side

    Sealing height

    ≤18 mm


    For full mortise fitting with fixing brackets (flush or recessed)
    can be shortened at one end by ≤125 mm
    floor gap 5–18 mm
    adjustment of sealing height on release pin with SW 3 Allen key


    DIN right
    Product Features

    Supplied with

    1 sliding door seal

    2 fixing brackets with screws

    1 floor guide

    1 release plate for knocking in

    Order reference

    Special lengths up to 6,000 mm available on request.

    Corporate Office: Häfele America Co., 3901 Cheyenne Drive, Archdale, N.C. 27263
    Phone: 800.423.3531, Fax: 800.325.6197, Local Phone: 336.434.2322, Email: