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DORMA Floor Springs

Frequently Asked Questions

Closing speed

DORMA BTS extended spindles options

Fixed hold-open (option)

Should i use a sealing compound?

Standard & optional functions of the BTS 75 V

What is backcheck

DORMA FLOOR SPRING BTS75V H/O EN1-4 H/O 90o W/ B/CHECK (61701200)

Product Code: DOBTS75V90

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Description

DORMA BTS 75 EN1-4 floor spring body with 90° hold-open. Including cement box and standard spindle.

The BTS 75V is a universal non-handed floor spring for left hand (LH) or right hand (RH) single and double action doors. With adjustable spring stength and closing speed, with closing action operational from approx. 175°. Featuring hydraulically fully controlled closing cycle and mechanical backcheck.

This model is hold-open at 90°.

Suitable for installation on doors up to 1100mm (W) with a max. 120kg leaf weight.

Extended spindles - Refer FAQ

Dimensions Weight
285mm (L) x 82mm (W) x 50mm (H) 3.0kg

Technical Specifications
Brand DORMAKABA
Has Backcheck Yes
Spring Strength EN1-4
Has Hold-open Yes, 90°
Max Door Width In mm 1100
Maximum Weight in kg 120

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