Features:

• The Dorma BTS80 EN3 floor spring body includes cement box and standard spindle
• It is a universal non-handed floor spring for single and double action doors
• With adjustable closing speed and closing action from approx. 175°, with hydraulically controlled closing cycle and mechnical backcheck
• Integral pressure compensation feature allows for temperature-independent hold-open between 75° and 175° (removable)
• Hold-open start point and delayed action is easily adjustable by valve
• Suitable for installation on doors up to 950mm (W) with a max. 300kg leaf weight

Specifications:

• Length: 341mm
• Width: 78mm
• Height: 60mm
• Weight: 7.1kg