Corrosion resistant chemical pneumatic valve (the choose and buy 1)

to determine the function and performance parameters of the pump and choose the pump type. This choice must first select from corrosion of chemical pump type and form, design institute in the design of devices. So what principles to choose the pump? On the basis of what?
accurately calculate corrosion chemical pump purchasing investment interest.
to make the selected corrosion chemical pump type and function of plant capacity and head, pressure, temperature, NPSH, such as suction
the condition of the essential content of medium characteristics of demands
no leakage of pump shaft sealing is reliable or adopted, toxic for the conveying inflammable, explosive or precious medium pump. Such as magnetic drive pump ( No shaft seal, driven by magnetic isolation type indirect)
for convection part adopts erosion resistance materials, for the pump for the transmission of corrosive media. Such as fluorine plastic corrosion chemical pump
requirements convection components adopt wear-resisting material, the delivery pump containing solid particles medium. Shaft seal with clean liquid flush when necessary.
the mechanical aspects of requirements of high reliability, low noise, small vibration.