Centrifugal Process Pump RK / RKN Series

The RK / RKN torque flow pumps exploit the hydraulic principle of energy transformation by means of swirling given by the impeller to the incoming fluid mass. Foot mounting, single volute casing with end suction and top discharge nozzles. Shaft supported by oil lubricated ball bearings. Lubrication assured by a constant level oiler. The shaft is always provided with its protective sleeve; in case of packed gland the deep stuffing box allows the fitting of a lantern ring between the packing rings for flushing purpose.

The pumps of the RK line are suitable for pumping viscous and turbid liquids containing also suspended foreign bodies and for all those fluids tending to solidify and to foul. Therefore, it can be applied in wide industrial fields: chemical and pharmaceutical industries, steelworks, refineries, paper mills, textile industry, shipyards, mining, food processing industry, sugar plants, beverage industry, oil mills, dairies, etc.

Details/Data Download – RKN Brochure

Details/Data Download – RK Series

 

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MATERIALS OF CONSTRUCTION
Execution 01: casing in cast iron G25 impeller in spheroidal cast iron, shaft and sleeve in stainless steel
X30Cr13
Execution 05: liquid end in stainless steel AISI 304
Execution 06: liquid end in stainless steel AISI 316
Execution 07: casing in cast steel FeG45VR, impeller in spheroidal cast iron, shaft and sleeve in steel X30Cr13
Execution 20: casing and impeller in alloy 20 with shaft in Incoloy 825
Execution 21: casing, impeller and shaft in Hastelloy C or B.

PERFORMANCES
Capacity up to 70 m3/hHead up to 60 mt liquid column
Speed from 950 to 3500 R.P.M.
The pumps can operate under positive suction head or under suction lift after they have been primed.

MAX. ALLOWABLE TEMPERATURES AND PRESSURES
Pump execution            Temperature           Pressure
Cast iron                         -30 to +120ºC         16 Kg/cm2
Cast iron                        +120 to +170ºC      10 Kg/cm2
Cast steel                        -50 to 120ºC           16 Kg/cm2
Stainless steel and       +280ºC                     12.5Kg/cm2
up to special alloys

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