Metering Pump for Perfusion Machine 1,Highly nonreactive, 2,Tiny thermal expansion. ... oxide acid-caustic, corrosion resistance, high temperature resistance, and suitable for repeating sterilization under hot condition. Superhigh material hardness---high ... aneroid running, high perfusion and able to realize CIP/SIP (cleaning in process and sterilization in process). Metering Pump for Perfusion Machine