NEA Series Universal Melt Gear Pump

Short Description:

Universal melt gear pump——Electric Heating Optimized tooth shape design, more stable conveying, minimal fluctuation Runner design without dead ends, no material residue Optional multiple sealing methods Suitable even at very low viscosity Optional wear-resistant configuration, suitable for high filling conditions Suitable for electric heating We provide a complete set of solutions for melt pumps, driving devices, control systems and supporting screen changers and die heads   NEA serie...


  • Place of Origin: Henan,China
  • Shipping: By sea
  • Brand: Vowa
  • Product Detail

    Product Tags

    Universal melt gear pump——Electric Heating
    Optimized tooth shape design, more stable conveying, minimal fluctuation
    Runner design without dead ends, no material residue
    Optional multiple sealing methods
    Suitable even at very low viscosity
    Optional wear-resistant configuration, suitable for high filling conditions
    Suitable for electric heating
    We provide a complete set of solutions for melt pumps, driving devices, control systems and supporting screen changers and die heads

    Universal-melt-gear-pump——Electric-Heating11

    Universal-melt-gear-pump——Electric-Heating1

     

    NEA series melt gear pump is a general-purpose melt gear pump for extrusion systems. Suitable for the extrusion and conveying of polymer melts from low viscosity to very high viscosity; generally installed between the extruder outlet and die head as a melt metering pump; it can also be installed in the polymer melt pipeline , Used as a booster pump.
    The main materials that can be conveyed by the melt gear pump are:
    Thermoplastic materials and their blends
    PET PBT PTT
    PA6 PA66 PA12
    PE LDPE LLDPE HDPE HMWPE
    PP EVA PB
    PB PS HIPS ABS SAN
    PC PEK PMMA POM
    TPU PLA PBS
    Rubber and elastomer materials
    NR BR CR NBR
    IR IIR
    SBR HNBR
    EPM EPDM
    PU TPU
    ACM CSM
    ECO SI
    The application of extrusion pump in single screw extrusion system

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    The application of extrusion pump in twin screw extrusion system

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    The main function of the melt pump:
    1. Significantly improve the stability of die pressure and improve product quality;
    2. It can realize the nearly linear output of flow, which is easy to control;
    3. Increase the extrusion volume and increase the output;
    4. Reduce the load of the extruder, save energy and reduce costs.
    The main features of the company’s melt gear pump:
    1. Very small pressure and flow pulsation, can achieve linear output of flow, suitable for precision extrusion system;
    2. Use different structures and material configurations for different working conditions to better meet the individual needs of users;
    3. It can be applied to the working conditions of high temperature (350℃), high pressure (40MPa) and high viscosity (40,000Pa•s);
    4. Precise structure, high precision and long life.
    The main structure of NEA series melt gear pump:
    Rotor type: helical or spur gear
    Heating method: electric heating/heat medium heating
    Sealing structure:
    ■ Dynamic melt seal + packing seal
    ■ Mechanical seal
    ■ Dynamic seal with cooling melt
    Material configuration of the main structure of the melt gear pump

    Material group

    case

    gear

    bush

    End plate

    Features and applicable working conditions

    Remarks

    A

    Standard

    Nitrided steel

    Nitrided steel

    Tool steel

    alloy steel

    Good wear resistance, high toughness, high cost performance

    Suitable for most working conditions with low abrasion

    Spare parts support

    H

    High wear resistance

    Nitrided steel

    High speed steel

    /coating

    High speed steel

    /ceramics

    alloy steel

    High strength, high wear resistance

    Suitable for abrasive wear conditions

    Need to be customized

    SS

    Corrosion resistant type

    stainless steel

    Nitrided steel

    Tool steel

    stainless steel

    Wear-resistant and corrosion-resistant

    Suitable for low corrosive conditions

    Need to be customized

    HS

    High corrosion resistance

    stainless steel

    Stainless tool steel

    Stainless tool steel

    stainless steel

    High corrosion resistance

    Suitable for highly corrosive working conditions

    Need to be customized

    T

    Special type

    Special alloy

    Special materials

    Special materials

    Special materials

    High temperature resistance or high corrosion resistance

    Suitable for working conditions with special requirements

    Need to be customized

    The main technical features of NEA series melt gear pumps:
    1. Optimized melt flow channel design: eliminate dead corners in the flow channel, reduce polymer residues to a minimum, and improve the quality of products;
    2. Improved gear parameter design: more accurate rotation displacement design makes the output pressure more stable and adapts to precise extrusion conditions;
    3. A wide range of applicable viscosity: different sealing methods can be applied to working conditions from low viscosity to very high viscosity;
    4. A variety of installation methods: to meet the individual needs of users;
    5. High-precision manufacturing and excellent heat treatment: more precise and more durable;
     Technical data:
    Viscosity  : 1~40000Pa•s(1~40,000,000cP)
    Suction side pressure : 0~30MPa
    Discharge side pressure : 0~40MPa
    Differential pressure : 25MPa 
    Temperature : ≤350℃
    Heating : Electric heating

    The installation structure of melt gear pump:
    It is

    vowa

    recommended to use a universal coupling to connect the reducer and the melt pump to eliminate the effects of thermal deformation; the melt gear pump is a positive displacement forced delivery pump, and the pump output flow can be adjusted by adjusting the pump speed. Frequency conversion is recommended. The speed mode can realize the nearly linear flow output of the gear pump.

    Pump size and Technical data

    Model

    cc/r

    Inlet
    pres.
    MPa

    Outlet
    pres.
    MPa

       Max. flow rate     m3/h

    Temp

    Low
    viscosity material

    Medium
    viscosity material

    High
    viscosity material

    Ultra high
    viscosity
    material

    <50Pa.s

    50~200Pa.s

    200~2000Pa.s

    >2000Pa.s

    NEA-01

    1

    0~30

    ≤40.0

    0.008 

    0.006 

    0.004 

    0.003 

    ≤350℃

    NEA-02

    2

    0.016

    0.011 

    0.008 

    0.005 

    NEA-05

    5

    0.041

    0.028

    0.019

    0.012

    NEA-10

    10

    0.081

    0.054

    0.038

    0.024

    NEA-20

    20

    0.162

    0.108

    0.076

    0.049

    NEA-32

    32

    0.259

    0.173

    0.121

    0.078

    NEA-50

    50

    0.405

    0.270

    0.189

    0.122

    NEA-75

    75

    0.527

    0.365

    0.243

    0.162

    NEA-100

    100

    0.702

    0.486

    0.324

    0.216

    NEA-160

    160

    1.123

    0.778

    0.518

    0.346

    NEA-200

    200

    1.404

    0.972

    0.648

    0.432

    NEA-250

    250

    1.620

    1.080

    0.675

    0.473

    NEA-355

    355

    2.3

    1.5

    0.9

    0.7

    NEA-500

    500

    3.2

    2.2

    1.2

    0.9

    NEA-750

    750

    4.9

    3.2

    1.8

    1.4

    NEA-1000

    1000

    5.4

    3.8

    2.2

    1.9

    NEA-1200

    1200

    6.5

    4.5

    2.6

    2.3

    NEA-1600

    1600

    8.6

    6.0

    3.5

    3.0

    NEA-2000

    2000

    10.8

    7.6

    4.3

    3.8

    NEA-2500

    2500

    10.8

    8.1

    4.7

    4.1

    NEA-3150

    3150

    13.6

    10.2

    6.0

    5.1

    NEA-4000

    4000

    13.0

    10.8

    7.6

    6.5

    NEA-6300

    6300

    20.4

    17.0

    10.2

    9.2

    NEA-8000

    8000

    21.6

    17.3

    13.0

    11.7

    Please consult with the manufacturers for the bigger or lower specification

    The flow rate of the melt gear pump is related to the working speed, material viscosity, and working pressure. Please consult the manufacturer for specific selection.
    The selection needs to provide parameters: 1 flow or output 2 material name 3 material viscosity 4 material corrosivity/toxicity 5 inlet and outlet pressure (pressure difference) 6 operating temperature


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