BTS 75V Dorma floor spring / door closer

The Dorma BTS75V floor spring is for making a door self-closing, with adjustable spring tension (size 1 -4) to give the correct amount of closing force. Correct selection of accessories ensures use in a variety of  applications including; single or double action, centre pivoted or off-set pivoted doors. The Dorma BTS75V floor spring is suitable for fire doors.

BTS 75 V Features

• Adjustable closing force (spring strength) EN 1-4
• Max door width:1100mm
• BS8300/ADM compliant: Min fire door width 767mm (at EN 3)
• Max door weight: 120kg
• Adjustable closing force
• 2 valve control of closing speed
• Adjustable sweep speed
• Adjustable latching speed
• Delayed action option
• Fixed mechanical back-check
• Successful independent testing to BS EN 1154
• CERTIFIRE approved for fire doors CF127 ITT60/MM/IMM240
• CE Marked

NOTE: Hold open versions available but this variant is not suitable/appropriate for fire doors - see BTS75-H.O floor spring.

£120.75 (£144.90 inc. VAT)