Dorma TS83BC Backcheck Door Closer Size 3 - 6 with Silver Finish Square Cover from Cookson Hardware.
Product Reference: TS83-EN3-6BC-SIL
The Dorma TS83 is a quality assured, multi-function, multi-purpose door closer offering outstanding versatility. The TS83 door closer is certified to ISO 9001 and tested to EN 1154. The Dorma TS83 door closer can even be supplied with additional anti-corrosion protection for exposed applications or aggressive conditions. It can be adjusted to suit almost all types of door. Fixing couldn’t be easier and last but not least – it’s engineered for excellence.
The Dorma TS83BC door closer complies with the requirements and/or recommendations of the following: Certifre approved (Certificate No. CF 118) for door types ITT 120 and MM/IMM 240.
Finish:
Silver
TS83BC Door Closer Features:
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Door closer with scissor arm and "thinking" backcheck and optional delayed action
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Perfect solution for almost any application
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Adjustable power to suit door widths up to 1250mm (*size 2 - 5), 1400mm (*size 3 - 6) and 1600mm (*size 7)
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Easy installation
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Anti-corrosion protection for exposed or aggressive conditions is available to special order
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For single- and double-leaf doors
*) For applications involving particularly heavy or wide doors, and doors which have to close against wind resistance, the next highest door closer size or a higher spring strength should be applied.
TS83BC Door Closer Benefits:
For the installer / fabricator:
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Easy to fix
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Can be tailored to the requirements of the door by simple adjustment
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Just one model for left and right hand doors, and for door and frame / lintel fixing
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Spring strength range EN 2-5 / EN 3-6 to suit virtually any application
For the architect / specifier:
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Compact closer design and sturdy arm assembly
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Wide range of standard functions supplemented by optional extras
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Anti-corrosion protection for exposed or aggressive conditions is available to special order
For the user:
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Optimum wall and door protection thanks to "thinking" backcheck
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Closing speed virtually unaffected by temperature fluctuations
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Relatively low opening resistance thanks to high mechanical efficiency
With "Thinking" Backcheck:
Thanks to an innovative design concept, the resistance developed by this backcheck system is directly proportional to door acceleration as the door is opened beyond approx. 70°. It is almost imperceptible when the door is opened slowly. However, if the door is opened roughly, the backcheck responds in equal measure.
And if the door should be flung open at speed – whether deliberately, thoughtlessly, accidentally or as a result of a gust of wind –
the backcheck reacts at full strength, protecting the wall and door from damage. If no backcheck function is required, the system can simply be switched off.
Standard & Optional Functions:
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Self-regulating backcheck
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Infinitely variable closing speed in the range 180o - 15o..
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Infinitely variable closing speed in the range 15o - 0o.
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Adjustable latch range (by arm)
Closing Force Settings:
Adjustable by means of setting screw
Dorma TS83 Door Closer Dimensions:
The Dorma TS83 sizes 2 - 5 and 3 - 6 are both 245mm in length and 46mm in depth. Size 7 door closer is 293mm in length and 47.5mm in depth.
Certification:
The Dorma TS83 door closer is Certifre approved ( Certificate No. CF 118) for door types ITT 120 and MM/IMM 240. 
The Dorma TS83 door closer Declaration of Performance can be viewed here - DOP
The Dorma TS83 door closer is CE marked - the certificate can be viewed here - CE | 
; "Dorma Door Closer TS83EN3-6BC Backcheck Size 3 - 6 Silver")
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