Varisco Usa Inc. 704-399-0589 moc.ocpocsalta.ti@ocsirav.tropxe |

Vulcan

Progressive cavity screw pumps

They are used for pumping liquids of any viscosity - even abrasive - with high percentages of solids or fibers.

Applications

Buildings

Pumping of viscous liquids

Transfer and agriculture

Treatment

Buildings

Pumping of viscous liquids

Transfer and agriculture

Treatment

Operation

How the VULCAN works

The progressive cavity pump belongs to the group of rotary positive displacement pumps. These pumps are characterized by the presence of a “rotor” (rotating part) and a “stator” (fixed part).

Inside the stator (comparable to a screw with two principles) the rotor moves (comparable to a screw with one principle), pushing the fluid through the mobile cavities that are created with the reciprocal movement.

The number of stages of the rotor-stator unit determines the pressure that can be obtained.

The diameter of the rotor determines instead the capacity of the pump.

Benefits

  • Constant capacity, directly proportional to the rotation speed and quite independent of the pressure
  • Smooth flow, without pulses or pressure peaks which could cause vibrations in the pipework
  • Reversibility. By inverting the direction of rotation the flow of liquid is reversed. Full performance is available in either direction of flow
  • Self-priming. The high vacuum created by the pump permits rapid self-priming at the maximum height made possible by the physical characteristics of the pumped liquid  (temperature, vapor pressure, viscosity)
  • Viscosity up to 1,000,000  mm2/s - cSt

Features

Wide sections of suction/discharge that allow pumping products containing up to 15% solids with an extremely compact construction.

Extremely compact and robust joint with geometry and dimensions designed to ensure the minimum NPSHR.

Standard execution with bidirectional single mechanical seal. The space between the shaft and the lantern ring is designed to be able to install many kinds of seal such as single mechanical seal with or without flushing, back-to-back or tandem double mechanical seal, packing gland seal with or without flushing.

Standard rotating parts are made in stainless steel. The production technology allows the execution in different kinds of materials, according to application needs. Furthermore the choice of the material of the rotating parts does not affect the life of the coupling thanks to the use of high resistance bushings.

Pump casing

Is the main structure of the pump between the support and the stator and is available in the following materials:

  • EN GJL 250 cast iron
  • AISI 304 - 316 stainless steel

Rotor

The pressure depends on the number of stages; every stage gives a pressure of 6 bar.
This component is available in the following materials:

  • AISI 420B - 304 - 316 stainless steel
  • Duplex stainless steel

and with the following treatments:

  • chrome plating
  • hardening
  • nitriding
  • ceramic coating

Stator

This component is the fixed rubber part and is available in the following materials:

  • NBR, standard and food grade
  • EPDM, standard and food grade
  • FKM
  • Natural H-NBR
  • PTFE

Product range

Size Model Pressure Capacity N° stages Speed
    bar m3/h   rpm
1 12-0.1 12 0,1 2 1000
24-0.1 24 0,1 4 1000
2 12-0.2 12 0,2 2 1000
3 06-001 6 1 1 1000
12-001 12 1 2 1000
4 06-002 6 2 1 1000
12-002 12 2 2 1000
24-002 24 2 4 1000
5 06-003 6 3 1 1000
6 06-005 6 5 1 1000
12-005 12 5 2 1000
24-005 24 5 4 1000
7 06-006 6 6 1 1000
12-003 12 3 2 1000
24-001 24 1 4 1000
8 06-012 6 12 1 1000
12-006 12 6 2 1000
24-003 24 3 4 800
48-001 48 1 8 800
9 04-024 4 24 1 800
06-016 6 16 1 800
08-012 8 12 2 800
12-008 12 8 2 800
24-004 24 4 4 800
48-002 48 2 8 600
10 04-034 4 34 1 700
06-028 6 28 1 700
08-017 8 17 2 600
12-014 12 14 2 600
24-007 24 7 4 500
48-003 48 3 8 400
11 04-064 4 64 1 500
06-044 6 44 1 500
08-032 8 32 2 500
12-022 12 22 2 500
24-010 24 10 4 400
48-005 48 5 8 300
12 04-110 4 110 1 400
06-076 6 76 1 400
08-055 8 55 2 400
12-038 12 38 2 400
24-019 24 19 4 400
48-010 48 10 8 300
13 06-115 6 115 1 350
12-120 12 120 2 350
06-210 6 210 1 300
12-210 12 210 2 300
14 06-240 6 240 1 300
06-400 6 400 1 300

Performance

constructions

industry

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