- Apply to chemical industry high,medium and low variety of all kinds of acid,alkali and corrosive fluid viscosity,benzene, ketones and esters conveying of various kinds of solvents,Because no electricity in our pneumatic diaphragm pump work does not produce electric spark,no heat generation and accumulation, safety explosion-proof. - Used in fine chemical industry in a variety of precious liquid,high harmfulness,high corrosion resistance and other dangerous material transportation,because we have no dynamic seal structure of pneumatic diaphragm pump,completely separated from the outside world, and no material leakage on the ground without a foundation,is very small,easy to install and the economy. Welcome and I wish you a happy life, my friend., Manufacturer: BGAZA