Shanghai Vowa Equipment Technology Co. LTD    Booster Pumps and Chemical Pumps    DHS Series Polymer Melts Gear Pump

DHS Series Polymer Melts Gear Pump

    

 

Booster Pump—— High-pressureChannel Heating

 

DHS series melt gear pump
DHS series melt gear pumps are especially suitable for the reactive transportation and pressurization of high-temperature and high-viscosity polymer melts that require high output pressure, such as resin and chemical fiber industries. They are generally installed in melt pipelines and used as booster pumps; also It can be installed in the extruder system that needs heating medium to be used as a metering pump. This series of melt gear pumps have a certain self-priming performance, and can be used for conveying and pressurizing polymer materials under lower vacuum suction conditions.


The main materials that can be conveyed by the melt gear pump are:
Polymer melt
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


Other stock solutions, solutions, glues, oligomers, prepolymers, etc. in the polymer material industry;
It can also be used to transport hot melt adhesives, asphalt, paints, adhesives, pharmaceuticals, food, grease, fuels, oils, dyes, coatings, lubricants, polyols and other materials that do not contain particulate impurities.


Technical data:
Viscosity 130000Pa•s 1,00030,000,000cP
Suction side pressure :(-0.00-0.03MPa)~16MPa
Discharge side pressure 035MPa
Differential pressure 25MPa
Temperature ≤350℃
Heating Fully Jacketed
HT medium pressure ≤1.6MPa


Installation method
DHS series melt gear pumps are generally installed in the melt pipeline at the bottom of the reactor and used as booster pumps or metering pumps. They are driven by motor + reducer + universal coupling. Melt gear pumps are positive displacement pumps. , The output flow of the pump can be adjusted by adjusting the speed of the pump. Frequency conversion speed regulation is recommended, which can realize the nearly linear flow output of the gear pump.

 

Main structure of gear pump:
Rotor type: helical or spur gear
Heating method: Heat medium heating


Sealing structure:
■ Dynamic melt seal + packing seal
■ Mechanical seal
■ Dynamic seal with cooling melt
■ High temperature resistant packing seal


Main structural materials of melt gear pump:
Pump casing: stainless steel/alloy steel/corrosion-resistant alloy
Gear: Nitrided steel/tool steel/stainless steel + coating/corrosion resistant alloy
Bearing: tool steel/copper alloy/stainless steel + coating/corrosion resistant alloy


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

50200Pa.s

2002000Pa.s

2000Pa.s

 

 

DHS-5

5

Vacuum

-0.0516.0

≤35.0

0.041

0.027

0.019

0.012

≤350℃

 

DHS-10

10

 

 

0.081

0.054

0.038

0.024

 

 

DHS-20

20

 

 

0.162

0.108

0.076

0.049

 

 

DHS-32

32

 

 

0.259

0.173

0.121

0.078

 

 

DHS-50

50

 

 

0.405

0.270

0.189

0.122

 

 

DHS-75

75

 

 

0.527

0.365

0.243

0.162

 

 

DHS-100

100

 

 

0.702

0.486

0.324

0.216

 

 

DHS-160

160

 

 

1.123

0.778

0.518

0.346

 

 

DHS-200

200

 

 

1.404

0.972

0.648

0.432

 

 

DHS-250

250

 

 

1.620

1.080

0.675

0.473

 

 

DHS-355

355

 

 

2.3

1.5

0.9

0.7

 

 

DHS-500

500

 

 

3.2

2.2

1.2

0.9

 

 

DHS-750

750

 

 

4.9

3.2

1.8

1.4

 

 

DHS-1000

1000

 

 

5.4

3.8

2.2

1.9

 

 

DHS-1200

1200

 

 

6.5

4.5

2.6

2.3

 

 

DHS-1600

1600

 

 

8.6

6.0

3.5

3.0

 

 

DHS-2000

2000

 

 

10.8

7.6

4.3

3.8

 

 

DHS-2500

2500

 

 

10.8

8.1

4.7

4.1

 

 

DHS-3150

3150

 

 

13.6

10.2

6.0

5.1

 

 

DHS-4000

4000

 

 

13.0

10.8

7.6

6.5

 

 

DHS-6300

6300

 

 

20

17

10

9

 

 

DHS-8000

8000

 

 

22

17

13

12

 

 

DHS-9000

9000

 

 

24

19

15

13

 

 

DHS-12000

12000

 

 

32

26

18

16

 

 

DHS-18000

18000

 

 

49

39

27

24

 

 

DHS-25000

25000

 

 

68

54

38

34

 

 

DHS-38000

38000

 

 

103

82

57

51

 

 

DHS-54000

54000

 

 

146

117

82

73

 

 

DHS-80000

80000

 

 

216

173

121

108