Bomba quimica

 

Bomba de engranajes para mayor transporte de fluidos de baja a media viscosidad. Aplicaciónes desde transferencia tradicional y tareas de medición en la industria química y farmacéutica hasta el transporte de monómeros, oligómeros y prepolímeros, durante la producción de polímeros. También se llegan a emplear en la industria alimentaria, para el transporte de mantequilla, margarina o aceites vegetales. Destacan en aplicaciones de vacío y alta presión en las industrias química, cosmética, alimenticia, petroquímica y de polímeros. Suministradas con cartuchos para su calentamiento o sin ellos.

 

 

Especificaciones:

Caja :
Acero inoxidable, acero al carbón, tantalio, titanio, Hastelloy®, cerámica Engranajes: Fabricado en cualquier cerámica y metal procesado
Opciones: Recubrimiento de la superficie

Cojinetes de fricción:
Acero al carbón, Níquel-plata, el silicio
carburo, óxido de zirconio , acero herramental
Opciones: Materiales especiales,
Aluminium-bronce, recubrimiento de la
superficie


Sellos del eje :
Cierre mecánico sencillo (ED), Cierre
mecánico simple con líquido amortiguador
(AD), Cierre mecánico doble con líquido
sellador (DD), Acoplamiento magnético, caja
de empaque, sello de viscosidad y
combinaciones


Sistemas de calefacción:
Vapor, agua, aceite de transferencia de calor,
electricidad

Parámetros de Operación:*

Viscosidad:
0.0005 a 1,000 Pas

Temperatura:
Hasta 300 °C (580 °F),

Presión de Entrada:
Vacío hasta un maxímo de 15 bar (215 psig),
mayor con un sistema magnético

Presión Diferencial:
Hasta un maxímo de 120 bar (1,740psig)

Capacidad de la bomba:
De 22/6 a 280/280,
(1.28 cm3/rev a 12,000 cm3/rev)

Application Examples

Organic and inorganic chemicals
Alcohols · additives · bases · esters · glycerine · resins · hardeners · isocyanates · monomers · oils · phenol · acids · biodiesel · asphalt · bitumen · tar · hotmelt · glues · waxes · etc.

Polymers
Celluloseacetate · Nylon 66 · prepolymers · etc.

Food industry
Vegetable oils · butter · margarine · flavourings · chocolate · fudge · liquorice · chewing gum · vitamins · syrup · gelatine · etc.

Pharmaceutical and Cosmetic Products
Amino acids · lotions · shampoo · vitamins · etc.

Mechanical Seals

 

 

Single mechanical seal (ED)
Suction pressure: up to 15 bar (abs.) (215 psig)
Viscosity: 0.2 – 5000 mPas
Temerature: max. 300°C (580°F

 

 

 

 

 

Single mechanical seal with buffer fluid (AD)
Suction pressure: vacuum to max. 5 bar (abs. (75 psig)
Viscosity: 0.2 – 1000000 mPas
Temerature: max. 250°C (500°F)

 

 

 

 

 

Double mechanical seal with buffer fluid (DD)
Suction pressure: vacuum to max 15 bar (abs.) (215 psig)
Viscosity: 0.2 – 10000000 mPas (cP)
Temerature: max 300°C (580°F)

 

 

 

CHEM MAGNET – with magnetic coupling – seal design for safe operation with critical media

The CHEM Magnet is in principle constructed in the same way as the CHEM but with a synchronous magnetic coupling forming the shaft seal. This operates slip-free, i.e. the pump speed is always the same as the shaft speed, as long as the load torque does not exceed the nominal torque of the magnetic coupling.

The magnetic coupling lends itself to conveying poisonous or flammable substances, as well as for operation at high system pressures. Special versions can be used for inlet pressures of up to 700 bar (10152 psig).

The containment shell of the magnetic coupling can be of the double-walled type. The double wall serves heating the coupling can. The double-walled containment shell can be provided with a leakage-monitoring system for particularly critical processes. The containment shell is filled with inert gas, in order to detect damage. If this gas escapes to the inside or outside, depending upon which wall is damaged, a pressure sensor will trigger an alarm. Because one wall of the double-walled containment shell is still intact, the possibility of the hazardous medium being conveyed leaking into the environment will be eliminated.

A particular highlight of the WITTE - Magnetic Coupling is the inner magnetic rotor's separate bearing. This ensures that only torque is transferred to the pump's drive shaft. The relatively heavy weight of the inner rotor is taken up by this bearing, thus relieving the pump's bearings.

WITTE's flange bearing design offers the additional advantage of preventing the inner totor from touching and damaging the containment shell. In competitor´s design it is possible for the inner rotor to touch the containment shell after pump bearings wear. Our design provides the safty of an additional bearing to insure the inner rotor can not touch the containment shell.

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