The dormakaba (formerly known as Dorma) BTS75V is a highly adaptable single action floor spring suitable for all doors with widths up to 1100 mm and up to 120 kg leaf weight. Thanks to the floor spring's adjustable spring strength, closing force can be individually regulated.
- Size 1 - 4
- Adjustable closing force
- Concealed installation
- Virtually maintenance free (other than routine dusting and cleaning)
- Finish available in stainless steel top plates, polished brass and with either single or double action packs