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.

米国豪州 / NZ 欧州

見積もりを依頼仕様

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.

市場別の規格と要求事項

World Steelが本製品の設計・製作・書類作成に適用する基準――および各市場における主な寸法・荷重要件。

米国

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

United Statesの規格一覧 →

豪州 / NZ

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

Australia & New Zealandの規格一覧 →

欧州

EN 1154Controlled door closing devices

Europeの規格一覧 →

参考用の概要です――プロジェクト仕様書、採用される基準の版、所轄官庁の判断が優先されます。

表面処理

表面処理	規格 / 備考
Finishes	AL aluminium, US10B bronze, US3, US19 black (by series)

よくある質問

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.