WWW.NOVAROTORS.COM - Progressing cavity pumps, mono pump, wobble pumps and flexible impeller

Progressing Cavity pumps

Screw pump due to the small dimensions of the high, allow the pumping of the product without pulsation and keep the fluid unaltered without damage it. Accept the presence of solid parts and can be suitable to pump fluid with viscosity up to 1.000.000 cps.


.Pompa monovite sezione

 

PROGRESSING CAVITY PUMP COMPOSITION

 

 

 


ROTOR

It is a screw shape with circular section and, rotating in to the stator, allows the pumping of the fluid. The pressure of the pump depends on the number of stages. Every stage gives a pressure of 6 bar. Nova Rotors has two types of rotors: standard and long step type that, considering the same diameter and eccentricity, doubles the capacity increasing the pump performance.

 

 

 

 


STATOR

It is the fixed part of vulcanized rubber, contained or less on the metal tube, shaped like a circular screw quarry where the rotor rotates.

 


Standard
passo corto

 

 

Long step type
passo allungato

 

Rotor Materials:
steel C40 chromed
stainless steel 304
stainless steel 316
stainless steel 304 HCP
stainless steel 316 HCP
nitride steel
hardened steel
ceramic steel
Duplex

stator elastomers (rubbers):
NBR
NBR foodgrade
EPDM
EPDM foodgrade
FKM
CSM (not availables after 2010)
H-NBR
NATURAL
PTFE,
other on request.

 



TRASMISSION AND JOINT

Support the axial force and the transmitted torque between rotor connection and drive.

 


Materials:

steel C40

stainless steel 316

stainless steel 304

Duplex

Stainless steel 630

Hardened steel 420B


Types:

SPin joint

Cross joint

Omocinetic joint

Open pin joint

 


BODY PUMP


It is the structure where the liquid is pumped from. Available with a lot of connection types ..

Materials:
Cast iron G25 UNI 5007

Stainless steel 304 / 316

Carbon steel

duplex

CIP on request

 

 



MOTORISATION
These are the devices that give the movement to the pump: motor, hand variator, gear reducer, inverter.

 

 


COUPLING

These are the devices that give the movement to the pump: motor, hand variator, gear reducer, inverter.

 

Close Coupled

supporto monoblocco

 

Bearing Housing

supporto cuscinetti

 

 

 

 


SEAL:

:Is the connection between the fix part and the rotating part of the pump to prevent the exit of the medium. The selection of the type is depending from the fluid to pump.




 

 

Features pump menu

 

 

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