BTS80 Size 4 Floor Spring
$369.96
- Fitting: Concealed – Fitted into the floor.
- Tested to BS EN1154.
- Height: 60mm
- Width: 78mm
- Length: 341mm
- Maximum Door Weight: 300kg
- Maximum Door Width – 1100mm
- Strength: Fixed Size 4
- Spindle: Yes – BTS80EN4 – 15mm(not including 3mm collar)
- Spindle: No – BTS80F
- Adjustable Closing Speed: Yes.
- Adjustable Latch Action: Yes.
- Delayed Action: Yes.
- Backcheck: Yes.
- Hold open – Any angle between 75 and 175 degrees. (hold open variants not suitable for use on Fire Doors)
- The angle at which the hold open begins can be adjusted between 75 and 105 degrees.
- CE Marked.
- Non Handed.
See below ordering options for single and double door accessory packs
BTS80VSA – Single Action Accessory Pack.
BTS80VDA – Double Action Accessory Pack.
Description
These Dorma BTS80 Floor Springs have a fixed strength size 4 and can be used on a single or double action door when fitted in conjunction with correct accessory pack.
These floor springs can be used on doors with a maximum weight of 300kg and a maximum width of 1100mm, are tested to BS EN1154 and are CE Marked.
Features include hold open, back check, delayed action, adjustable closing speed and adjustable latch action – See FAQs for more information on how these functions work.
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