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.

美国澳大利亚 / 新西兰欧洲

索取报价技术规格

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.

各市场标准与要求

World Steel 设计、加工本产品及编制文件所依据的规范——以及各市场的主要几何与荷载要求。

美国

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

全部United States标准 →

澳大利亚 / 新西兰

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

全部Australia & New Zealand标准 →

欧洲

EN 1154Controlled door closing devices

全部Europe标准 →

摘要仅供参考——以项目技术规格书、所采用的规范版本及主管机构要求为准。

表面处理

表面处理	标准 / 备注
Finishes	AL aluminium, US10B bronze, US3, US19 black (by series)

常见问题

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.