• Double Action
• For Aluminum Doors
• Stainless Steel
• Specify closer strength 3,4 or 6 when ordering.

Dorma floor spring BTS80 door closer is a non-handed model that includes cement box and standard spindle. It is a floor spring for double action aluminum doors with a maximum leaf weight of 300kg. With adjustable closing speed & latching action by valve, mechanical back check. Can be used for fire & smoke check doors.

The Dorma BTS80 double action aluminium floor spring kit is supplied with the following: 1. The BTS80 floor spring, 2. a stainless steel cover plate, 3. a dust cover, 4. a standard spindle, 5. a 7422 bottom strap and 6. an 8062 top centre