Pumps for ultra pure water

We supply sterile and dead space free pumps for ultra pure water. SAWA pumps are manufactured from solid stainless steel 1.4435 to meet the highest requirements of the pharmaceutical industry. SAWA ultrapure water pumps are the ideal choice when centrifugal pumps are required to be absolutely sterile. The pump can be completely emptied either vertically or with the residue drain valve type RE15, which has no dead space.

Pumped media

demineralised water, demineralised water, deionised water, demineralised water
WFI water (water for injection) hot water for injection
PW water (purified water) cold water, enriched with or without ozone
HPW water (higly purified water) cold water, enriched with or without ozone

Applications of the ultrapure water pumps

Delivery of (WFI hot, HPW cold) in separate loops by 2 redundant pharmaceutical centrifugal pumps
Pre-rinsing with hot HPW during the cleaning process
CIP cleaning and SIP process

Properties of the ultrapure water pumps

Production from solid bar steel, stainless steel 1.4435
Delta ferrite content < 1 % or according to BN 2 (Basel standard) < 0.5 %.
Surface roughness of all parts in contact with the medium Ra 0.8 µm - Ra 0.4 µm
SAWA standard: always electropolished, regardless of the Ra values
residual draining without dead space
CIP / SIP capable

Sealing

single acting with closed mechanical seal
double-acting, sterile version
Magnetic coupling

Ultra pure water pumps

Manufacturer, dealer, service provider

Pump types for ultra pure water

Ultra pure water pumps series LEP and LEMP with single or double acting sterile mechanical seal, as well as with permanent magnetic coupling in pharmaceutical design. Due to the gap-free design, the interior of the pump is free of dead space and can be completely emptied. A further attribute of this series is the high energy efficiency with excellent efficiency, which is achieved by the fluidically optimised pump housing and the impeller geometry perfectly matched to it.

Ultrapure water pumps series ZALRP for loops that are installed over several floors. With the special single-stage impeller, pressures of up to 10 bar can be achieved and therefore this pump type is ideal for applications with numerous points of delivery.