Door hardware & access control

Door closers – Grade 1 to Grade 3

Surface-applied hydraulic closers from standard to maximum duty – cast aluminium or cast steel, non-handed tri-pack mounting, adjustable spring power and backcheck.

Stati Uniti Australia / NZ Europa

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Door closer installed on a commercial door

Grade 1 heavy-duty closer, forged arm.

Maximum-duty closer.

Grade 3 standard-duty closer.

Grade 1 · 3 per BHMA A156.4
500,000 to 2 million cycles
Non-handed, tri-pack mounting
Adjustable spring 1 – 6
Backcheck, sweep and latch valves
Fire-rated listings to 3 h

Range

WS closers
Duty	Grade	Body	Spring	Cycles
Standard	3	Cast aluminium	Size 3 or 4	500,000
Heavy	1	Cast aluminium, forged arm	1 – 4 / 3 – 6	2 million
Heavy – universal	1	Cast aluminium	adjustable	2 million
Heavy – slim	1	Slim cast aluminium	adjustable	2 million
Maximum	1	Cast steel	1 – 6	2 million
Light commercial / residential	–	Compact	fixed	–

All commercial closers are non-handed and mount regular arm, top jamb or parallel arm from one box, with independent sweep and latch speed valves and adjustable hydraulic backcheck that cushions the door if it is thrown open.

Why closers matter

A closed door stops fire and smoke, keeps conditioned air in and keeps security doors latched. Every fire door needs a self-closing device; on accessible routes the opening force and closing speed must also meet the code.

Norme e requisiti per mercato

I codici secondo cui World Steel progetta, fabbrica e documenta questo prodotto, con i principali requisiti geometrici e di carico in ciascun mercato.

Stati Uniti

ANSI/BHMA A156.4Door controls – closers
NFPA 80 · UL 10CHardware on fire doors
ICC A117.1 / ADAAccessible operating hardware

Opening force: 5 lbf max. on interior accessible doors

Tutte le norme United States →

Australia / NZ

AS 1905.1Hardware on fire-resistant doorsets
AS 1428.1Accessible door hardware

Tutte le norme Australia & New Zealand →

Europa

EN 1154Controlled door closing devices

Tutte le norme Europe →

Sintesi solo orientativa: prevalgono il capitolato di progetto, l'edizione del codice adottata e l'autorità competente.

Finiture

Finitura	Norme / note
Finishes	AL aluminium, US10B bronze, US3, US19 black (by series)

Domande frequenti

Which side of the door does the closer go?

Regular arm mounts on the pull side; parallel arm mounts on the push side – preferred for exterior and corridor doors because it is less exposed to vandalism.