Refill APAR

selamat malam semua ya , ttg refill, gambar di bawah adalah dry powder yang bertekanan. Sda juga dry powder tanpa tekanan, tekanan terpisah. Ini pun ada dua. didalam tabung , biasanya ukuran kecil. Yang lebih besar dengan tabung tekanan di luar. Berkaitan dengan refill, ada kre teria atau yg harus, mutlak di perhatikan. Terutama kwalitas tabung. dengan tabung bertekanan , beresiko pada saat pengisian tekanannya. Tada tabung yang tekanan nya bekerja pada saat bekerja / dibutuhkan / pada saat memadamkan, beresiko pada operator nya. http://home.howstuffworks.com/home-improvement/household-safety/fire/fire-extinguisher1.htm alamat diatas mungkin memperjelas maksud saya. semoga b er manfaat, salam, Fire extinguishers are sturdy metal cylinders filled with water or a smothering material. When you depress a lever at the top of the cylinder, the material is expelled by high pressure, similar to the way material is forced out of an aerosol can. The diagram below shows a typical design. In this extinguisher, a plastic siphon tube leads from the bottom of the fire-suppressant reservoir to In this extinguisher, a plastic siphon tube leads from the bottom of the fire-suppressant reservoir to the top of the extinguisher. A spring-mounted valve blocks the passageway from the siphon to the nozzle. At the top of the cylinder, there is a smaller cylinder filled with a compressed gas -- liquid carbon dioxide, for example. A release valve keeps the compressed gas from escaping. Most dry-chemical fire extinguishers have a built-in pressure gauge. If the gauge indicator is pointing to "recharge," the pressure in the extinguisher may be too low to expel the contents. The National Fire Protection Association recommends having dry extinguishers inspected every six years, even if the gauge indicates correct pressure.