CSX sampler reference technology design and manufacturing, for petroleum, chemical installations in the pipes under the process conditions in a variety of media, particularly toxic, flammable, explosive and other dangerous, low pressure gas and liquid media leak-free sampling. Samples of authenticity, and high accuracy, no residual liquid, and gas emissions. Effectively prevent poisonous or harmful medium injury to operator. And will not pollute the environment, avoiding the flammable, explosive medium at the time of sampling can cause dangerous accidents. Meet the requirements of countries on environmental protection and fire-proof, explosion-proof specifications.