Positive displacement pumps

Internal Gear Pump R

Application:

The internal gear pumps type R are positive displacement rotary pumps. The capacity is directly proportional to the rotation speed. This robust pump is very
successfully used for pumping high viscous liquids like for example bitumen.


Characteristics:

  • Self-priming
  • Heating optional
  • Safety valve optional
  • ATEX optional
  • Simple and robust construction
  • In-line version available

Materials:

  • This pump can be made of stainless steel 1.4408 (AISI 316), cast iron EN-GJL-250 and nodular cast iron EN-GJS-400
  • Shaft sealing alternative with mechanical seal, stuffing box or magnetic drive. The materials and the execution of the mechanical seal, packing or magnetic drive in accordance to the liquid.


Tech­nical data:

  • Q max.: 350 m³/h
  • Viscosity: up to 100.000 mm²/s (cSt)
  • Ma­x. nominal pressure: PN16 (16 bar)
  • Tem­pe­ra­ture liquid: -60 to 300°C
  • Connections: DN40 - DN250

Rotary Lobe Pump B

Application:

Lobe pumps of series “B” are positive displacement rotary pumps. The capacity is directly proportional to the rotation speed. Two synchronously driven rotors are rotating in a casing. This design provides a very gentle pumping of fluids.


Characteristics:

  • Heating optional
  • Safety valve optional
  • ATEX optional
  • Series B with flexible coupling, Series BE monobloc design
  • Pumping in both directions
  • Self-priming
  • Easy and simple cleaning (SIP, CIP)
  • Countless versions and options available 

Ma­te­ri­als:

  • All hy­draulic parts are made of stain­less steel AISI 316. Spe­cial al­loys and sur­face hard­en­ings avail­able on re­quest.
  • Shaft seal­ing al­ter­na­tive with me­chan­i­cal seal, stuff­ing box or spe­cial lip seal. The ma­te­ri­als and the ex­e­cu­tion of the me­chan­i­cal seal, pack­ing or lip seal in ac­cor­dance to the liq­uid.


Tech­ni­cal data:

  • Q max.: 300 m³/h
  • Vis­cos­ity: up to 110.000 mm²/s (cSt)
  • Nom­i­nal pres­sure: PN10 (10 bar), PN20 (20 bar) op­tional
  • Tem­pe­ra­ture liq­uid: -40 to 200°C
  • Con­nec­tions: DN25 - DN200

Air Operated Double Diaphragm Pump DDA

Ap­pli­ca­tion:

The air operated double diaphragm pumps of type “DDA” are used for pumping a variety of different liquids (mainly chemicals), without abrasive, coarse or extended solids. These pumps can be installed submerged in the pumped liquid. The DDA pumps are self-priming. And they can be used for thin and viscose fluids. This series contains special pumps for food industry named “DFA”.


Char­ac­ter­is­tics:

  • ATEX op­tional
  • Self-prim­ing
  • Capable of dry running
  • No shaft seal needed

Ma­te­ri­als:

  • The air operated double diaphragm pumps are made of PP (glass fiber reinforced polypropylene), PVDF, carbon fiber filled PVDF, Aluminium or stainless steel AISI 316 (AISI 316 polished - FDA).


Tech­ni­cal data:

  • Q max.: 40 m³/h
  • H max.: 70 m

Air Operated Double Diaphragm Pump DDE

Application:

The air operated double diaphragm pumps of type “DDE” are used for pumping a variety of different liquids (mainly chemicals), without abrasive, coarse or extended solids. These pumps can be installed submerged in the pumped liquid. The DDE pumps are self-priming. And they can be used for thin and viscose fluids. This series offers also a special FDA version for the food industry.


Characteristics:

  • Self-priming
  • Capable of dry running
  • ATEX optional
  • No shaft seal needed
  • Solids up to 8,5mm size (depending on pump size)

Ma­te­ria­li­en:

These pumps are avail­able in a wide range of ma­te­ri­als: PP, PVDF Solef, Alu­minium, stain­less steel AISI 316L.


Tech­ni­cal data:

  • Q max.: 42,9 m³/h
  • H max.: 80 m
  • Vis­cos­ity: up to 50.000 mm²/s (cP)
  • Con­nec­tions: ½“ bis 2“

Air Operated Double Diaphragm Pump DDM

Application:

The air operated double diaphragm pumps of type “DDE” are used for pumping a variety of different liquids (mainly chemicals), without abrasive, coarse or extended solids. These pumps can be installed submerged in the pumped liquid.


Characteristics:

  • Self-priming
  • Capable of dry running
  • ATEX optional
  • No Shaft seal needed

Ma­te­ri­als:

The air op­er­ated dou­ble di­aphragm pumps are made of: stain­less steel AISI 316L, du­plex steel, bronze or UHMW-PE


Tech­nical data:

  • Q max.: 76,8 m³/h
  • H max.: 80 m
  • Vis­cos­ity: up to50.000 mm²/s (cP)
  • Con­nec­tions: 2“ to 4“