... , linearity between flow rate and percentage of stroke 2 Mechanical Diaphragm Dosing Pump It is a diaphagm,economic,robust,compact metering ... the working characteristics of a plunger pump with the sealing advantages of a diaphragm pump.Thanks to the quality and ... working safety.No external moving parts.Leak-free operations.For more Mechanical Diaphragm Dosing Pump details,please contact us directly ...