GB 2551-92 Welding And Cutting rubber hoses-acetylene rubbe hose
GB 2551-92 is the national standard of China for the acetylene rubber hoses used in welding and cutting. Known for being tough and durable, acetylene rubber hoses resist bursting, cracking, and flame proofing techniques, making them the preferred choice for a variety of welding projects.
The National Standard, GB 2551-92, covers the following: specification requirements, testing, performance and safety requirements, and marking of acetylene rubber hoses.
Specification requirements determine the specified requirements for acetylene rubber hoses, such as temperature range, size, working pressure, and tests. Tests include burst test, tightness test and abrasion test, as well as other tests related to acetic acid, oilier, and chlorine.
Performance & safety requirements cover general and safety requirements, such as pressure, temperature, and strength. The Chinese National Standard also includes other safety requirements such as those related to construction, flexural strength and tear strength. In addition, the national standard includes the requirements concerning the marking of acetylene rubber hoses. The markings that are included in this standard should include manufacturers name and address, code number, working pressure, and the year of production.
Since acetylene rubber hoses are considered to be quite dangerous, it is important that they be constructed and certified in accordance with GB 2551-92. It is essential that these hoses be regularly checked for potential hazards, such as leaks, and that the proper safety precautions are taken when using them in any application.
Acetylene rubber hoses are largely used in welding and cutting applications, and are popular for their durability, flexibility and strength. The Chinese National Standard GB 2551-92 is designed to ensure that the acetylene rubber hoses used in welding and cutting applications are safe, reliable and meet all the requirements set forth in the standard. All acetylene rubber hoses must be manufactured and certified in accordance with the national standard to ensure that they are safe and reliable.
