Dorma BTS80 EN-4 Door Closer Floor Spring Adjustable Hold Open 80110000

Dorma BTS80 EN-4 Door Closer Floor Spring
80110000 

Floor Spring are mostly used in glass doors (e.g. inner doors of business parks, shopping malls, and hospital buildings). 

Floor Spring Function - A mechanical door closing device that can effectively resist when the door with heavy traffic is opened too quickly or with too much force. 

• Universal non-handed floor spring for single and double action door 
• Used on both fire and smoke check doors and with its concealed application is ideal for situations, where aesthetic quality is not comprised by safety assurance. 
• Designed to meet the requirements for all door types and can satisfy every application required, due to its versatility. 
• Once installed below floor level, the mechanism is almost completely concealed from view.