What is the difference between hydraulic and pneumatic door closers?
液壓門弓器(油壓門弓器)跟氣壓門弓器差別在哪裡?
Hydraulic and pneumatic door closers are two common types of door closers. In a hydraulic door closer, the spring tension is modulated by hydraulic fluid. In contrast, in a pneumatic door closer, the air pressure control valve controls the opening and closing of the door.
Pneumatic door closers are often installed on doors in the office or residence properties and are shock resistant. Hydraulic door closers are even better than pneumatic door closers in terms of load capacity and shock resistance. The applications of hydraulic door closers are quieter and more versatile. These advantages make hydraulic door closers popular on the market.
液壓(油壓)和氣壓式門弓器是兩種常見的門弓器種類。液壓門弓器的彈簧張力由液壓油調節，氣壓式門弓器則是由氣壓控制閥控制門的打開和關閉。 氣壓式門弓器通常安裝在辦公室或住宅物業的門上，並且具有抗震動功能。液壓門弓器則在負載能力和抗震動方面優於氣壓式門弓器，運用的範圍也更加廣泛，包含玻璃門、重型門、飯店房間門、辦公室門、公共通道門…等。