Positive displacement pumps.
Positive displacement gear pumps
Positive displacement air operated diaphragm pumps
Positive displacement vanes pumps
Positive displacement piston pumps
Eccentric disc pumps
Positive displacement progressive cavity pumps
Positive displacement dosing pumps
Positive displacement peristaltic pumps
Centrifugal pumps
Centrifugal self priming pumps
Glandless centrifugal pump
Centrifugal surpression pumps
Centrifugal submersible pump
Centrifugal single stage pumps
Centrifugal multi stage pumps
Centrifugal swimmingpool pumps
Centrifugal immersion pumps / Cantilever
Centrifugal barrel pumps
Air & Gas
Positive displacement piston pumps
Description and working principle
Seybert & Rahier (Sera) metering pumps for dosing of chemicals under high pressure 140 bar. They are eencylinderpompen custom suction and discharge valves.Made simple and robust, stainless steel dosing, locally or remotely controlled, adjustable flow.Speck of the piston other hand are available in stainless steel or brass. Some models go up to 1000 bar. However, they still several cylinder heads ("multiplex") with, for each cup, each time a set of suction and discharge valves. Both pump types are available with a wide variety of accessories.
Markets
Applications
Water, air conditioning, wash plants, environtal, surface treatment, food processing, paper and cellulose, storage and transfer, sugar industry, nuclear, chemical, petrochemical, pharmaceutical, ...