Dorma BTS 80 Floor Spring

This is a hydraulic stand open device, which allows the door to be set to a particular degree of opening. Available in 3 different strengths, to cope with many sizes and weights of doors. Not for use on Fire Doors due to stand open device.

Dimensions
Length	Height	Depth
341mm	60mm	78mm

Finish: N/A

Strength: EN 3, EN 4 or EN 6

Non-Handed

Adjustable Closing Speed
Back Check
Delayed Closure
Single and Double Action
Hold Open - Adjustable
Max Door Weight 300kg

Cost: There are four cost options available with this product:

BTS 80 Unit Only EN 4: £195.50 + VAT
BTS 80 Unit and Foundation Box EN 4: £204.90 + VAT
BTS 80 Unit and Foundation Box EN 6: £204.90 + VAT
BTS 80 Unit, Foundation Box and Standard Spindle EN 4: £214.24 + VAT

Dorma BTS 80 Dummy Unit Box

Suitable to be used in replacement of a BTS 75 unit.

Cost: £64.47 + VAT

Phone London: 020 7242 1777 or Essex: 01277 375 040

View the Floor Spring Unit Accessories Page.
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Glossary of Terms

Back Check

Hydraulic braking device which cushions the opening of a door i.e. to stop the door hitting a wall.

Delayed Closure

Contains an extra valve, to allow the door to close at a slower pace i.e. for slow moving traffic.

Single Action

Door opens one way only.

Double Action

Door opens both ways.

Hold Open

Door can be held open.

Non Hold Open

Door cannot be held open.

Strength

The unit strength is determined by the door size, weight, external conditions, degree of opening, use and adjustment of unit.

Non Handed

Suitable for either left or right hand doors.

Handed

Either left handed or right handed.

Adjustable Closing Speed

Speed of door closure can be adjusted.

Adjustable Latching Action

Speed of door can be altered for the last stage of door closure.

Able Door Spring Company. Est. 1978