MarSpin | Double-Port Metering Pumps

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Gear Metering Pumps | double dosed

MarSpin – Double-Outlet Gear Metering Pumps

The double-outlet gear metering pumps are the further development of the single-gear metering pumps. Depending on the application, you can choose between two different versions: Three-gear metering pumps or stacked design in two layers.

The double-gear metering pumps from Mahr are mainly used in spinning and ashesive technology. With a small footprint they offer the opportunity to realize two flow rates by using one drive.

Stacked Design:
Dimensions mm 66x7080x12280x132
Flow per outlet cc/rev 0,1-3,33-303-30
Counter pressure bar (max) 500500500
Three-Gear Design:
Dimensions mm78x9580x145100x180160x280
Flow per outlet ccm/U0,1- 610-3013-5050-150
Counter pressure bar (max)500350300300

 

MaterialMaterial propertiesField of applicationPermissible operating temperature max.Permissible cleaning temperature max.
E20high chromium alloyed high grade tool steel, with additions of vanadium, tungsten and molybdenum
  • for larger flow rates from 30 cc/rev
400°C
750°F
500°C
930°F
F16high tungsten, vanadium and chromium alloyed high speed steel
  • extremely high wear-resistant
  • exclusively produced for Mahr
450°C
840°F
550°C
1020°F
F24molybdenum, tungsten, vanadium and chromium alloyed high speed steel
  • highly wear-resistant
450°C
840°F
550°C
1020°F
Hastelloyacid-resistant nickel alloy, additions of molybdenum and chromium
  • very good resistance especially to mineral and organic acids
250°C
480°F
300°C
570°F
N19high chromium alloyed stainless steel, additions of molybdenum and vanadium
  • optimal combination of resistance to corrosion and wear
180°C
356°F
200°C
392°F
N31High chromium alloyed stainless steel, additives of molybdenum and vanadium
Can be used in combination with Stellite S2.
  • very good resistance and good polishability
  • suitable for food and pharmaceutical industries
250°C
480°F
300°C
570°F
Stellite S2cobalt-based alloy with high chromium content and additions of tungsten and nickel
Can be used in combination with N31.
  • highly wear-resistant
  • corrosion resistant
150°C
depending on material combination
300°C
depending on material combination
N33high chromium alloyed stainless steel, additions of nickel, molybdenum and manganese
  • high degree of hardness with excellent corrosion resistance
  • for highly stressed components
200°C
392°F
220°C
428°F
N33-4high chromium alloyed stainless steel, additions of nickel, molybdenum and manganese
  • high degree of hardness with good corrosion resistance
  • suitable for higher temperatures
350°C
665°F
450°C
840°F

 

The pump connection to the drive is available in the following versions:

  • shaft type
  • plug type

Gear pump with motor

  • Base plate with mounting block
  • Coupling
    • curved-tooth coupling
    • cardan shaft
    • magnetic coupling
    • all-steel coupling
  • Motor
    • asynchronous gear motor
    • servomotor / servo gear motor
    • synchronous geared motor

The drive units are designed according to the operating conditions.

Coating

Coating technologies take a significant key position in the development of new products. The various coating technologies enlarge the application possibilities of the base materials. Furthermore, a coating reduces friction, wear and corrosion. In principle, all named materials can be coated depending on the specification.

Diamond-Like Carbon (DLC) improves the properties:

  • high surface hardness
  • high wear protection
  • smaller coefficient of friction
  • better corrosion reduction to aggressive media
  • higher chemical resistance / stability
  • non-stick effect (reduced adhesion of polymers and other materials)
  • high temperature firmness to 250°C
  • excellent accuracy to size (no change of the high discharge accuracies)
  • high economic efficiency through longer endurance and improvement of technological properties
  • biocompatible, allows the use in the food industry and in the medical field

 

Sealing systems of the gear pumps

  • stuffing box seal
  • rotary shaft seal
  • labyrinth seal
  • mechanical seal
  • magnetic coupling

Atex Directive

  • II 2G Ex h T6...T1 Gb
  • II 2G Ex h T6...T2 Gb

A version according to the Atex directive is available for the pump as well as for the drive.

Heating or cooling for the gear pumps Heating or cooling can be provided electrically as well as by the thermal fluid.

Brochure

Gear Metering Pumps

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Form

Inquiry Specification
Gear Metering Pumps

Please fill out this form – with this data we will select the suitable gear pump.

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Technical Information

Pump Material of Construction

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Form

Inquiry Specification
Drive Unit

Please fill out this form – with this data we will select the suitable drive for the pump.

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Mahr | Note

The entire pump portfolio cannot be completely listed due to the large number of available designs. The same applies to the fields of application. Please contact us!

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Mahr Metering Systems | Contact

Do you have questions about our products?

Please contact us at +49 (0) 551-7073-100

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