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RCEV

Vertical chemical centrifugal pump in metal

Due to its non-pedestal design and impeller equipped with front and rear blades, the RCEV pump type is highly suitable for handling solids-laden liquids. It is possible to pump up to 30 percent solids with this type of pump, where the type and composition of the solids (hard, soft, light or heavy) plays a important role.

The decision whether to use an open or closed impeller depends heavily on the type of the solids. The RCEV is used to convey mechanically contaminated, corrosive or neutral liquids such as phosphoric acid, highly contaminated sulphur, titanium dioxide slurries, copper dissolution acids as well as liquids that cannot tolerate localised heating by sliding bearings, e.g. concentrated ammonium nitrate solutions, DNT mixtures.

Design Features

Design

Vertical centrifugal pump

Material

Metal

Size

DN 32 - DN 300

Impeller

Closed or open

Delivery rate

Qmax. = 900 m3/h

Delivery head

Hmax. = 85 m

Depth

from 2,00 m

Temperature

-40 °C to 200 °C

Nominal pressure

10 bar

Aggressive, plus abrasive and corrosive liquids and slurries such as e.g. heavily contaminated sulphur , phosphate mashes, titanium dioxide slurries, copper digestion acids, crude tar, and liquids sensitive to local heating from sleeve bearing.

Norm

ISO 5199

Type

Vertical, single-stage

Construction

Cantilever-Design

Casing design

Single or double volute casing

Installation versions

Wet installation

Impeller

Closed or open

Bearing lubrication

Grease lubrication

Installation versions

Sole plate for tank or steel

Ambient temperature

-20°C to 60°C

Solid content limit value

approx. 30 %

Shaft sealing with stuffing box or packing ring. The sealing is not in contact with the liquid; rising fluid in shaft pipe runs through overflow holes back into container.

  • Ferritic cast steel 1.0619
  • High Alloy Cast Steel V5700 (0.9650)
  • Ferritic stainless steel 1.4136S
  • Austenitic stainless steel 1.4306S
  • Austenitic stainless steel 1.4408
  • Duplex 1.4517
  • Fully austenitic special stainless steel R3020
  • High austenitic stainless steel 1.4529S
  • Higher austenitic stainless steel 1.4652S