DORMA BTS 80 Universal floor spring suitable for internal or external doors up to 1400mm wide, left or right hand, single or double action. Closing speed adjustable, backcheck protection, optional adjustable hold-open or delayed action. See also clause 450 for DORMA non-MOB-approved floor springs. Consult DORMA technical literature for details. DORMA can also provide a design and specification service and it is recommended that they are consulted early in the design process. To BS EN 1154 Manufacturer and reference: DORMA UK Limited Door Controls Division Wilbury Way Hitchin Hertfordshire SG4 0AB Tel: 01462 477600 Fax: 01462 477601 Email: hardware@dorma-uk.co.uk Reference: Dorma BTS 80 Finish: Satin brass Satin stainless steel Other finishes to special order