DF FS 904

Note :

•  Install it on the suitable door accordingly.
•  Don't turn the screw of regulating valves On 1,2 thoroughly out In case of oil leakage ,only adjust them slightly.

Standard Optional Functions :

•  Closing Ranges

  The floor spring has two controlled closing ranges: valve 1 :120° - 0° sweep  valve 2 : increases the closing speed between 120° -20°
   

•  Hold Open

  With the hold-open (optional extra),the door can be held at an angle of 90°

DF-FS-904 Floor Spring :

•  First Adjusting

  Closing range (120°- 0°)

•  Second Adjusting

  Closing range(120° - Approx. 20°)

•  Hold Open At 90°

  (optional Extra)

Special Shallow Design Optional Hold-Open :

• The Define DF-FS-904 is a double action floor spring which has  been specially developed for the aluminum and toughened glass door industries. complement or internationally acclaimed concealed overhead door closer by giving the shop fitting industry the option of a define quality

• floor spring designed for there particular purpose.the DF-FS-904 has many of the features of the other define door closes with the addition reduced depth and an array of accessories designed for the aluminum door fabricator and toughened glass door manufacture.

•  Plus Point :

  • For The Trade

    Outstanding value for money. also available with stronger and weaker springs for spacial requirements.

  • For The Installer

    Easy installation thanks to shallow design. easy to adapt to individual requirements with dual valve control 120° to 0° and 120° to 20°. interchangeable spindle insert available to suit site conditions.

  •  Adjustment 120° -0 °
  •  Valve for increasing closing speed 120° - 20°

     

  • Universal Cover Plate

    Available in stainless steel

  • For The Architect / Specifier

    Concealed unit for invisible installation minimum floor recess dimension.proven,robust unit for door weights up to 90 to 1200 kg.

  • For The User

    Thermo constant smooth operation.high mechanical efficiency for easy door opening.optional single point hold-open

    Description :

    Technical data			DF-FS-904
    Data 1		2	3	4
    Standard and external doors	Up To 950 mm	3	-	-
    Closing speed variable by valve adjustment			3
    Backcheck			-
    Delayed action			-
    Hold on point 90
    Weight In neck approx.			5.0
    Dimensions In mm	Length		305
    	Width		106
    	Height		41.5
    Door closer tested standard			3
    Mark for		-	3	3
    3 Yes - No option

    1) For application involving particularly high or heavy doors, and doors which have to class against wind or drought conditions,the next large closer size or the define DF-FS-904 should be selected.

    2) Max.opening 120° door stop necessary for doors which can open further than 120° valve for closing speed.