DORMA BTS75V Hydraulic Floor Door Spring
- Hydraulic spring with EN 1-4 power regulation for doors up to 1100 mm of width and 120 kg of weight.
- Versatile: adjustable speed, mechanic back-check and interchangeable spindles.
- Spring strength (EN) 3 4 6 1 - 4
- Spring strength adjustment Standard and ≤ 1950 mm
- External doors ≤ 1100 mm ≤ 1400 mm
- Fire and smoke check doors Max. leaf weight (kg) 120
- Non-handed, suitable for single and double action doors
- Closing speed 175° – 0° adjustable by valve 175° – 15° ,15° – 0°
- Back check, mechanical, Delayed action adjustable by valve ( select-able alternative to the hold-open feature) Hold-open Adjustable ,Fixed 90°, Fixed 105° ,Cover plate cement box secured to floor spring
- Weight in kg 7.1 3.0
- Floor spring tested to EN 1154
- Color: Steel
- Door Leaf Types: Glass Door / Wood Door / Aluminium Door
- Cover Plate Not Included
